docs(middle-day): update deprecated method

it was deleted by mistake in dd3d57b8e4

.github/ISSUE_TEMPLATE/bug_report.md

@@ -1,32 +1,53 @@
-### Environment
+---
+name: 🐛 Bug report
+about: Create a report to help us improve
+title: "[BUG] "
+labels: "🐛 bug"
+assignees: ""
+---
 
-Device (web, mobile): 
+**Describe the bug**
+A clear and concise description of what the bug/error is.
 
-Operating system (Windows, macOS, Linux): 
+**Users**
+Usernames of students/admin that are affected by the issue: 
 
-Browser (Chrome, Firefox, Safari, Brave): 
+**Severity**
+Choose the severity label (❗️minor), (‼️ major), or (⚠️ critical).
 
-### Steps to reproduce the issue = what action results in the issue
+**Type**
+Choose the label (🖌️ ui), (⚙️ functionality), (🗂️ documentation), or (🔐 security)
 
-URL of the page: 
+**To Reproduce**
+Steps to reproduce the behavior:
 
-Steps to follow: 
+1. Go to '...'
+2. Click on '....'
+3. Scroll down to '....'
+4. See error
 
-1. 
-2. 
+**Workarounds**
+Any known workarounds for the issue:
 
-Usernames of students that are affected by the issue: 
+**Expected behavior**
+A clear and concise description of what you expected to happen.
 
-### Expected Result = How the software should have performed
+**Attachments**
+If applicable, add screenshots/videos/logs to help explain your problem.
+<sub>Using tools like [Loom](https://chrome.google.com/webstore/detail/loom-for-chrome/liecbddmkiiihnedobmlmillhodjkdmb)</sub>
 
-What was the expected outcome of the action taken in `step 3` ? 
+**Desktop (please complete the following information):**
 
-### Actual Result = How the software actually performed
+- OS: [e.g. iOS]
+- Browser [e.g. chrome, safari]
+- Version [e.g. 22]
 
-Actual outcome of the action taken in `step 3`  
+**Smartphone (please complete the following information):**
 
-Error message that appears (if applicable) 
+- Device: [e.g. iPhone6]
+- OS: [e.g. iOS8.1]
+- Browser [e.g. stock browser, safari]
+- Version [e.g. 22]
 
-### Visual Proof
-
-Screenshots & Videos (using [Loom](https://chrome.google.com/webstore/detail/loom-for-chrome/liecbddmkiiihnedobmlmillhodjkdmb))
+**Additional context**
+Add any other context about the problem here.

.github/ISSUE_TEMPLATE/feature_request.md

@@ -1,11 +1,28 @@
+---
+name: 🪄 Feature request
+about: Suggest a feature or an enhancement for this project
+title: "[FEATURE] "
+labels: "🪄 feature"
+assignees: ""
+---
+
 **Is your feature request related to a problem? Please describe.**
 A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
 
+**Type**
+Choose the label (🖌️ ui), (⚙️ functionality), (🗂️ documentation), or (🔐 security)
+
+**Expected benefit**
+A clear and concise description of the expected benefit of the feature, including any relevant metrics or data to support its value:
+
+**Target audience**
+Who will benefit from this feature (e.g. users, developers, administrators):
+
 **Describe the solution you'd like**
 A clear and concise description of what you want to happen.
 
 **Describe alternatives you've considered**
 A clear and concise description of any alternative solutions or features you've considered.
 
-**Additional context**
-Add any other context or screenshots about the feature request here.
+**Additional context & attachments**
+Add any other context, screenshots, or additional attachments, such as mockups or prototypes, to provide more context for the feature.

.github/workflows/docker-images.yml

@@ -21,7 +21,7 @@ jobs:
           password: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Login to docker.01-edu.org Registry
-        uses: docker/login-action@v1
+        uses: docker/login-action@v2.1.0
         with:
           registry: docker.01-edu.org
           username: ${{ secrets.USER_DOCKER_01EDU_ORG }}

docs/reviews.md

@@ -0,0 +1,50 @@
+# Reviews
+
+## Context
+
+Only unblocked bonus exercises can be reviewed, which are usually the last items of a quest.
+Bonus exercises are available in quests 02 / 03 / 04 / 05 / 07 / 08 / 09.
+<img width="1073" alt="Screenshot 2019-10-17 at 02.43.31" src="img/reviews/Screenshot 2019-10-17 at 02.43.31.jpg">
+
+Making a review involves 2 students who are going to review each other's exercise.
+Each user has to :
+
+- **check** the code of the other one on Gitea. **You must add your reviewer as contributor in your repository so he/she can see your code**.
+- **bet** if it is going to fail or succeed in the Review interface.
+- **run** his own exercise in the Review interface to give a result to compare with the bet, and state if it was right or wrong.
+
+## Usage
+
+To submit an exercise to review and be reviewed, go to the `Review panel` on the right of the quest interface and click on the button to submit it :
+
+<img width="1073" alt="Screenshot 2019-10-17 at 01.59.32" src="img/reviews/Screenshot 2019-10-17 at 01.59.32.jpg">
+
+Then, when a match with another student who also wants to review is found, you will be notified :
+
+<img width="1073" alt="Screenshot 2019-10-17 at 02.03.11" src="img/reviews/Screenshot 2019-10-17 at 02.03.11.jpg">
+
+Once you and the other student have confirmed the match, you can go and check the code of the other student on their repository in the component `Your review` :
+
+<img width="1073" alt="Screenshot 2019-10-17 at 02.05.46" src="img/reviews/Screenshot 2019-10-17 at 02.05.46.jpg">
+
+When you have checked their code, those 4 steps will have to be completed to achieve the review :
+
+- You have to bet if the exercise of the other student will fail or succeed after running the tester
+- The other student has to do the same with your exercise and make his own bet, that you will see on the component `Review of your exercise`
+  <img width="1073" alt="Screenshot 2019-10-17 at 02.20.18" src="img/reviews/Screenshot 2019-10-17 at 02.20.18.jpg">
+
+- Once the other student's bet is set, the tester button unblocks and you have to run it on your exercise to output the result determining if your exercise has failed or succeeded ; this result is compared to the other student's bet to determine if it was wrong or right
+- The other student also has to run the tester on their exercise to determine their result and so whether your bet was wrong or right
+  <img width="1073" alt="Screenshot 2019-10-17 at 02.22.30" src="img/reviews/Screenshot 2019-10-17 at 02.22.30.jpg">
+
+A bet is considered succeeded if it is equal to the tester output :
+<img width="1073" alt="Screenshot 2019-10-17 at 02.24.04" src="img/reviews/Screenshot 2019-10-17 at 02.24.04.jpg">
+
+You can have those 4 cases :
+
+| bet     | tester output | bet result    |
+| ------- | ------------- | ------------- |
+| fail    | failed        | **succeeded** |
+| fail    | succeeded     | **failed**    |
+| succeed | succeeded     | **succeeded** |
+| succeed | failed        | **failed**    |

js/tests/bloody-sunday_test.js

@@ -1,18 +0,0 @@
-export const tests = []
-const t = (f) => tests.push(f)
-
-t(() => bloodySunday(new Date('0001-01-01')) === 'Monday')
-t(() => bloodySunday(new Date('0001-01-02')) === 'Tuesday')
-t(() => bloodySunday(new Date('0001-01-03')) === 'Wednesday')
-t(() => bloodySunday(new Date('0001-01-04')) === 'Thursday')
-t(() => bloodySunday(new Date('0001-01-05')) === 'Friday')
-t(() => bloodySunday(new Date('0001-01-06')) === 'Saturday')
-t(() => bloodySunday(new Date('0001-01-07')) === 'Monday')
-
-t(() => bloodySunday(new Date('0001-12-01')) === 'Friday')
-t(() => bloodySunday(new Date('1664-08-09')) === 'Saturday')
-
-t(() => bloodySunday(new Date('2020-01-01')) === 'Monday')
-t(() => bloodySunday(new Date('2048-12-08')) === 'Thursday')
-
-Object.freeze(tests)

js/tests/gatecrashers_test.mjs

@@ -77,8 +77,8 @@ const isServerRunningWell = async ({ path, ctx }) => {
 const testGoodRequests = async ({ path, eq, fail, ctx }) => {
   const expectedBody = {
     answer: 'yes',
-    drink: 'alcohol',
-    food: 'bats',
+    drink: 'juice',
+    food: 'pizza',
   }
   const dirName = 'guests'
   const dirPath = join(ctx.tmpPath, dirName)
@@ -110,8 +110,8 @@ const testGoodRequests = async ({ path, eq, fail, ctx }) => {
 const testUnauthorizedRequests = async ({ path, eq, ctx }) => {
   const body = {
     answer: 'yes',
-    drink: 'alcohol',
-    food: 'bats',
+    drink: 'juice',
+    food: 'pizza',
   }
 
   const { server } = await ctx.startServer(path)

js/tests/race_test.js

@@ -1,4 +1,3 @@
-Promise.race = undefined
 // /*/ // ⚡
 export const tests = []
 const t = (f) => tests.push(f)

js/tests/sunny-sunday_test.js

@@ -0,0 +1,18 @@
+export const tests = []
+const t = (f) => tests.push(f)
+
+t(() => sunnySunday(new Date('0001-01-01')) === 'Monday')
+t(() => sunnySunday(new Date('0001-01-02')) === 'Tuesday')
+t(() => sunnySunday(new Date('0001-01-03')) === 'Wednesday')
+t(() => sunnySunday(new Date('0001-01-04')) === 'Thursday')
+t(() => sunnySunday(new Date('0001-01-05')) === 'Friday')
+t(() => sunnySunday(new Date('0001-01-06')) === 'Saturday')
+t(() => sunnySunday(new Date('0001-01-07')) === 'Monday')
+
+t(() => sunnySunday(new Date('0001-12-01')) === 'Friday')
+t(() => sunnySunday(new Date('1664-08-09')) === 'Saturday')
+
+t(() => sunnySunday(new Date('2020-01-01')) === 'Monday')
+t(() => sunnySunday(new Date('2048-12-08')) === 'Thursday')
+
+Object.freeze(tests)

js/tests/test.mjs

@@ -180,7 +180,7 @@ const runTests = async ({ url, path, code }) => {
         new Promise((s, f) => {
           timeout = setTimeout(f, 60000, Error('Time limit reached (1min)'))
         }),
-    ])
+      ])
       if (!(await waitWithTimeout) && !isDOM) {
         throw Error('Test failed')
       }

js/tests/uninvited_test.mjs

@@ -0,0 +1,197 @@
+import { once } from 'node:events'
+import { spawn } from 'node:child_process'
+import { mkdir, writeFile, chmod } from 'fs/promises'
+import { join } from 'path'
+import fs from 'node:fs/promises'
+
+export const tests = []
+const fetch = _fetch // to redefine the real fetch
+
+const port = 5000
+
+export const setup = async ({ randStr }) => {
+  const dir = '.'
+
+  await mkdir(`${dir}/guests`, { recursive: true })
+
+  const randomName = randStr()
+
+  const createFilesIn = ({ files, dirPath }) => {
+    Promise.all(
+      files.map(([fileName, content]) =>
+        writeFile(`${dirPath}/${fileName}`, JSON.stringify(content), {
+          flag: 'wx',
+        }),
+      ),
+    ).catch(reason => console.log(reason))
+
+    return true
+  }
+
+  const sendRequest = async (path, options) => {
+    const response = await fetch(`http://localhost:${port}${path}`, options)
+    const { status } = response
+    const headers = Object.fromEntries(response.headers)
+    let body = ''
+    try {
+      body = await response.json()
+    } catch (err) {
+      body = err
+    }
+    return { status, body, headers }
+  }
+
+  const startServer = async path => {
+    const server = spawn('node', [`${path}`])
+    const message = await Promise.race([
+      once(server.stdout, 'data'),
+      Promise.race([
+        once(server.stderr, 'data').then(String).then(Error),
+        once(server, 'error'),
+      ]).then(result => Promise.reject(result)),
+    ])
+    return { server, message }
+  }
+
+  return { tmpPath: dir, createFilesIn, randomName, sendRequest, startServer }
+}
+
+const testServerRunning = async ({ path, ctx }) => {
+  const { server, message } = await ctx.startServer(path)
+  server.kill()
+  return message[0].toString().includes(port)
+}
+
+const testRightStatusCode = async ({ path, ctx, randStr }) => {
+  const { server } = await ctx.startServer(path)
+  const { status } = await ctx.sendRequest(`/${ctx.randomName}`, {
+    method: 'POST',
+    headers: {
+      'content-type': 'application/json',
+    },
+    body: randStr(),
+  })
+  server.kill()
+
+  if (status != 201) return false
+  return true
+}
+
+const testRightContentType = async ({ path, ctx, randStr }) => {
+  const { server } = await ctx.startServer(path)
+  const { headers } = await ctx.sendRequest(`/${ctx.randomName}`, {
+    method: 'POST',
+    headers: {
+      'content-type': 'application/json',
+    },
+    body: randStr(),
+  })
+  server.kill()
+  if (headers['content-type'] != 'application/json') return false
+  return true
+}
+
+const testServerFail = async ({ path, eq, ctx, randStr }) => {
+  const { server } = await ctx.startServer(path)
+  await chmod(`${ctx.tmpPath}/guests`, 0).catch(reason => console.log(reason))
+  const { status, body, headers } = await ctx.sendRequest(
+    `/${ctx.randomName}`,
+    {
+      method: 'POST',
+      body: randStr(),
+    },
+  )
+  await chmod(`${ctx.tmpPath}/guests`, 0o777)
+  server.kill()
+  return eq(
+    {
+      status: status,
+      body: body,
+      'content-type': headers['content-type'],
+    },
+    {
+      status: 500,
+      body: { error: 'server failed' },
+      'content-type': 'application/json',
+    },
+  )
+}
+
+const testFileCreated = async ({ path, ctx, randStr }) => {
+  const { server } = await ctx.startServer(path)
+  const randomName = randStr()
+  await ctx.sendRequest(`/${randomName}`, {
+    body: randStr(),
+    method: 'POST',
+  })
+  const dirName = 'guests'
+  const dirPath = join(ctx.tmpPath, dirName)
+  let accessWorked = true
+  server.kill()
+  await fs
+    .access(`${dirPath}/${randomName}.json`, fs.constants.F_OK)
+    .catch(reason => {
+      accessWorked = false
+      console.log(reason)
+    })
+  return accessWorked
+}
+
+const testFileContent = async ({ path, ctx, randStr }) => {
+  const { server } = await ctx.startServer(path)
+  const randomName = randStr()
+  const body = randStr()
+  await ctx.sendRequest(`/${randomName}`, {
+    body: body,
+    method: 'POST',
+  })
+  const dirName = 'guests'
+  const dirPath = join(ctx.tmpPath, dirName)
+  server.kill()
+  let content = ''
+  await fs
+    .readFile(`./${dirPath}/${randomName}.json`, 'utf8', (err, data) => {
+      if (err) {
+        console.error(err)
+        return 'error when reading file'
+      }
+      return data
+    })
+    .then(data => {
+      if (data === 'error when reading file') return
+      content = data
+    })
+  return body === content
+}
+
+const testBodyOnSuccess = async ({ path, ctx, eq, randStr }) => {
+  const { server } = await ctx.startServer(path)
+  const randomBody = { message: randStr() }
+  const { body } = await ctx.sendRequest(`/${ctx.randomName}`, {
+    method: 'POST',
+    headers: {
+      'content-type': 'application/json',
+    },
+    body: JSON.stringify(randomBody),
+  })
+  server.kill()
+  return eq(
+    {
+      body: body,
+    },
+    {
+      body: randomBody,
+    },
+  )
+}
+tests.push(
+  testServerRunning,
+  testRightStatusCode,
+  testRightContentType,
+  testBodyOnSuccess,
+  testFileCreated,
+  testFileContent,
+  testServerFail,
+)
+
+Object.freeze(tests)

js/tests/veterinary_test.js

@@ -0,0 +1,37 @@
+export const tests = []
+
+const testProperties = () => {
+  return (
+    Array.isArray(veterinary.animalKnowledge) &&
+    typeof veterinary.canTreat === 'function' &&
+    typeof veterinary.respondClient === 'function'
+  )
+}
+
+const testCanTreat = () => {
+  veterinary.animalKnowledge.push('dog', 'cat', 'elephant')
+  return (
+    veterinary.canTreat('dog') &&
+    veterinary.canTreat('cat') &&
+    veterinary.canTreat('elephant') &&
+    !veterinary.canTreat('') &&
+    !veterinary.canTreat('goldfish')
+  )
+}
+
+const testRespondClient = () => {
+  veterinary.animalKnowledge.push('parrot')
+  const vetResponse1 = veterinary.respondClient('Jack', 'parrot')
+  const vetResponse2 = veterinary.respondClient('Matias', 'cobra')
+
+  return (
+    vetResponse1.includes('Jack') &&
+    vetResponse1.toLowerCase().includes('yes') &&
+    vetResponse2.includes('Matias') &&
+    vetResponse2.toLowerCase().includes('no')
+  )
+}
+
+tests.push(testProperties, testCanTreat, testRespondClient)
+
+Object.freeze(tests)

sh/debian/configure.sh

@@ -258,9 +258,23 @@ function deployCore() {
   # Deploy Runner
   echo -e "Deploying Runner service: \n "
   cd /root/core/runner
+
+  # Get the latest release version tag and create latest branch
+  tag=$(git describe --tags $(git rev-list --tags --max-count=1))
+  git checkout $tag -b latest
+  git describe --tags
+
+  # Set upstream to latest
+  git branch --set-upstream-to=origin/latest latest
+
+  # Get user auth infor for the runner
   echo -e "Enter the runner Registry password: "
   read registryPassword
-  REGISTRY_PASSWORD=$registryPassword ./run.sh
+  echo -e "Enter the runner GitHub username: "
+  read githubUsername
+  echo -e "Enter the runner GitHub token: "
+  read githubToken
+  REGISTRY_PASSWORD=$registryPassword GITHUB_USERNAME=$githubUsername GITHUB_TOKEN=$githubToken ./run.sh
   echo -e "Runner service is up! \n"
 }
 

sh/tests/Dockerfile

@@ -1,7 +1,7 @@
 FROM docker.01-edu.org/debian:10.9-slim
 
 RUN apt-get update
-RUN apt-get -y install jq curl
+RUN apt-get -y install jq curl tree apt-utils
 
 WORKDIR /app/assets/superhero
 RUN curl --remote-name --location https://demo.01-edu.org/assets/superhero/all.json

sh/tests/append-output_test.sh

@@ -0,0 +1,99 @@
+#!/usr/bin/env bash
+
+# Unofficial Bash Strict Mode
+set -euo pipefail
+IFS='
+'
+FILENAME="student/append-output.sh"
+script_dirS=$(cd -P "$(dirname "$BASH_SOURCE")" &>/dev/null && pwd)
+
+if test ! -e append-output; then
+    mkdir append-output
+    cat <<EOF >append-output/results.txt
+"In the End" - Linkin Park
+"Crawling" - Linkin Park
+"Elevation" - U2
+"Get the Party Started" - Pink
+"Lady Marmalade" - Christina Aguilera, Lil' Kim, Mya, Pink
+EOF
+    cat <<EOF >append-output/songs.txt
+"Breathe" - Faith Hill
+"It Wasn't Me" - Shaggy featuring Ricardo "RikRok" Ducent
+"Hanging by a Moment" - Lifehouse
+"Shape of My Heart" - Backstreet Boys
+"Thank You" - Dido
+"I'm Like a Bird" - Nelly Furtado
+"Family Affair" - Mary J. Blige
+"Fallin'" - Alicia Keys
+"All for You" - Janet Jackson
+"I Wanna Know" - Joe
+"U Remind Me" - Usher
+"U Got It Bad" - Usher
+"I'm a Believer" - Smash Mouth
+"Get the Party Started" - Pink
+"Wherever You Will Go" - The Calling
+"In the End" - Linkin Park
+"Loser" - Beck
+"Get Ur Freak On" - Missy Elliott
+"I'm Real" - Jennifer Lopez
+"Butterfly" - Crazy Town
+"Crawling" - Linkin Park
+"I'm a Slave 4 U" - Britney Spears
+"Elevation" - U2
+"Lady Marmalade" - Christina Aguilera, Lil' Kim, Mya, Pink
+"Play" - Jennifer Lopez
+"I'm Just a Kid" - Simple Plan
+"Imitation of Life" - R.E.M.
+"Big Pimpin'" - Jay-Z
+"Stutter" - Joe featuring Mystikal
+"I Wish" - R. Kelly
+"This Is the Night" - Clay Aiken
+"Hella Good" - No Doubt
+"I Know" - Dionne Farris
+"I'll Be Missing You" - Puff Daddy and Faith Evans featuring 112
+"I Try" - Macy Gray
+"Thong Song" - Sisqo
+"Survivor" - Destiny's Child
+"I Want It That Way" - Backstreet Boys
+"Bad Day" - Daniel Powter
+"I'm Like a Bird" - Nelly Furtado
+"I Need to Know" - Marc Anthony
+"Follow Me" - Uncle Kracker
+"Hemorrhage (In My Hands)" - Fuel
+"Soak Up the Sun" - Sheryl Crow
+"I Hope You Dance" - Lee Ann Womack
+"Can't Get You Out of My Head" - Kylie Minogue
+"I Just Wanna Love U (Give It 2 Me)" - Jay-Z
+"My Love Is Your Love" - Whitney Houston
+"Bounce with Me" - Lil' Bow Wow
+"Where the Party At" - Jagged Edge
+"I'm Already There" - Lonestar
+"I Don't Want to Miss a Thing" - Aerosmith
+"If You Could Read My Mind" - Stars on 54
+"My Way" - Usher
+"Always on Time" - Ja Rule featuring Ashanti
+EOF
+fi
+challenge() {
+    $(cd "$1" && bash "$script_dirS"/$FILENAME)
+    submitted=$(cat $1/results.txt)
+    rm $1"/results.txt"
+    $(cd "$1" && bash "$script_dirS"/solutions/append-output.sh)
+    expected=$(cat $1/results.txt)
+    diff <(echo "$submitted") <(echo "$expected")
+}
+
+if [ -s ${FILENAME} ]; then
+    if [[ $(cat $FILENAME | grep "cat <<EOF >results.txt" | wc -l) -ne 0 ]]; then
+        echo "cheating is not allowed in this exercise!"
+        exit 1
+    elif
+        [[ $(cat $FILENAME | grep echo | wc -l) -ne 0 ]]
+    then
+        echo "cheating is not allowed in this exercise!"
+        exit 1
+    fi
+fi
+
+challenge append-output
+rm -r append-output

sh/tests/array-selector_test.sh

@@ -0,0 +1,30 @@
+#!/usr/bin/env bash 
+
+
+# Unofficial Bash Strict Mode
+set -euo pipefail
+IFS='
+'
+
+script_dirS=$(cd -P "$(dirname "$BASH_SOURCE")" &>/dev/null && pwd)
+
+challenge() {
+    submitted=$(bash "$script_dirS"/student/array-selector.sh "$@")
+    expected=$(bash "$script_dirS"/solutions/array-selector.sh "$@")
+
+    diff <(echo "$submitted") <(echo "$expected")
+}
+
+# Test with numbers - out of range included
+for num in {0..6}
+do 
+    challenge $num
+done
+
+# Test with a value that is not a digit 
+
+challenge "abc"
+
+# Test with wrong number of arguments
+
+challenge

sh/tests/auto-exec-bin_test.sh

@@ -0,0 +1,54 @@
+#!/usr/bin/env bash
+
+# Unofficial Bash Strict Mode
+set -euo pipefail
+IFS='
+'
+
+FILENAME="student/auto-exec-bin.sh"
+BINFILE="~/myBins/01exec"
+script_dirS=$(cd -P "$(dirname "$BASH_SOURCE")" &>/dev/null && pwd)
+
+setupbin() {
+    if [ -f ${BINFILE} ]; then
+        echo "bin already exists!"
+    else
+        mkdir -p ~/myBins
+        echo "echo Hello 01 Scripting Pool" > $HOME/myBins/01exec
+    fi
+    chmod +x $HOME/myBins/01exec
+}
+
+challenge() {
+    OLD_PATH=$PATH
+    # run soultion script
+    source "$script_dirS"/$FILENAME
+	submitted=$(cd / && 01exec)
+
+    PATH=$OLD_PATH
+    # run student script
+	source "$script_dirS"/solutions/auto-exec-bin.sh
+	expected=$(cd / && 01exec)
+
+    # diff
+	diff <(echo "$submitted") <(echo "$expected")
+}
+
+# True if FILE exists and is a regular file
+if [ -f ${FILENAME} ]; then
+    # FILE exists and it's not empty
+    if [ -s ${FILENAME} ]; then
+        if [[ $(cat $FILENAME | grep echo | wc -l) -ne 0 ]]; then
+            echo "echo is not allowed in this exercise!"
+            exit 1
+        fi
+        setupbin
+        challenge
+    else
+        echo "The file exist but is empty"
+        exit 1
+    fi
+else
+    echo "File does not exist"
+    exit 1
+fi

sh/tests/auto-jobs_test.sh

@@ -0,0 +1,20 @@
+#!/usr/bin/env bash
+
+# Unofficial Bash Strict Mode
+set -euo pipefail
+IFS='
+'
+
+print_content() {
+	mkdir -p uncompressed
+	tar -xpf auto-jobs.tar -C uncompressed
+	cat -e uncompressed/$1
+}
+
+for i in 1 2 3 4
+do
+    submitted=$(cd student && print_content task$i)
+    expected=$(cd solutions && print_content task$i)
+
+    diff <(echo "$submitted") <(echo "$expected")
+done

sh/tests/bin-status_test.sh

@@ -0,0 +1,34 @@
+#!/usr/bin/env bash
+
+# Unofficial Bash Strict Mode
+set -euo pipefail
+IFS='
+'
+
+FILENAME="student/bin-status.sh"
+
+
+challenge() {
+	submitted=$(eval "$@" >/dev/null 2>&1 ; source $FILENAME)
+	expected=$(eval "$@" >/dev/null 2>&1 ; source solutions/bin-status.sh)
+
+	diff <(echo "$submitted") <(echo "$expected")
+}
+
+
+# True if FILE exists and is a regular file
+if [ -f ${FILENAME} ]; then
+    # FILE exists and it's not empty
+    if [ -s ${FILENAME} ]; then
+        challenge true
+		challenge false
+		challenge ls -l
+		challenge ls asdasdasdasdad
+    else
+        echo "The file exist but is empty"
+        exit 1
+    fi
+else
+    echo "File does not exist"
+    exit 1
+fi

sh/tests/burial_test.sh

@@ -0,0 +1,28 @@
+#!/usr/bin/env bash
+
+# Unofficial Bash Strict Mode
+set -euo pipefail
+IFS='
+'
+
+FILENAME="student/burial.sh"
+
+# True if FILE exists and is a regular file
+if [ -f ${FILENAME} ]; then
+    # FILE exists and it's not empty
+    if [ -s ${FILENAME} ]; then
+        if [[ $(cat $FILENAME | grep echo | wc -l) -ne 0 ]]; then
+            echo "echo is not allowed in this exercise!"
+            exit 1
+        fi
+        submitted=$(bash $FILENAME)
+        expected=$(bash solutions/burial.sh)
+        diff <(echo "$submitted") <(echo "$expected")
+    else
+        echo "The file exist but is empty"
+        exit 1
+    fi
+else
+    echo "File does not exist"
+    exit 1
+fi

sh/tests/calculator_test.sh

@@ -0,0 +1,86 @@
+#!/usr/bin/env bash
+
+# set -euo pipefail
+IFS='
+'
+
+script_dirS=$(cd -P "$(dirname "$BASH_SOURCE")" &>/dev/null && pwd)
+
+challenge() {
+    submitted="./calculator.sh $@
+    "
+    expected="./calculator.sh $@
+    "
+    submitted+=$(2>&1 bash "$script_dirS"/student/calculator.sh "$@")
+    submitted+="
+    exit status: $?"
+    expected+=$(2>&1 bash "$script_dirS"/solutions/calculator.sh "$@")
+    expected+="
+    exit status: $?"
+
+    diff -U 1 <(echo "$submitted") <(echo "$expected")
+    if [ $? != 0 ]
+    then
+        exit 1
+    fi
+}
+
+# Check if student uses case statement
+if [[ $(cat "$script_dirS"/student/calculator.sh | grep case | wc -l) -eq 0 ]]
+    then
+    echo "Error: the use of case statement is mandatory"
+    exit 1
+fi
+
+# Valid inputs
+challenge "15" "+" "10"
+challenge "15" "-" "10"
+challenge "15" "/" "10"
+challenge "15" "*" "10"
+
+challenge "3491" "+" "-67"
+challenge "3491" "-" "-67"
+challenge "3491" "/" "-67"
+challenge "3491" "*" "-67"
+
+challenge "-3491" "+" "-67"
+challenge "-3491" "-" "-67"
+challenge "-3491" "/" "-67"
+challenge "-3491" "*" "-67"
+
+# Invalid inputs
+
+challenge
+challenge "-3491" "*" "-67" "10" "12"
+
+challenge "20" "/" "0"
+challenge "20" "@" "10"
+challenge "10" "*" "67invalid"
+
+# Test operators functions
+
+source $script_dirS"/student/calculator.sh" 10 + 10 >/dev/null 2>&1
+
+if [ $(do_add 11 14) != 25 ]
+then
+    echo "error in function do_add"
+    exit 1
+fi
+
+if [ $(do_sub 11 14) != -3 ]
+then
+    echo "error in function do_sub"
+    exit 1
+fi
+
+if [ $(do_mult 3 5) != 15 ]
+then
+    echo "error in function do_mult"
+    exit 1
+fi
+
+if [ $(do_divide 50 5) != 10 ]
+then
+    echo "error in function do_divide"
+    exit 1
+fi

sh/tests/check-user_test.sh

@@ -0,0 +1,28 @@
+#!/usr/bin/env bash
+
+# set -euo pipefail
+IFS='
+'
+
+script_dirS=$(cd -P "$(dirname "$BASH_SOURCE")" &>/dev/null && pwd)
+
+challenge() {
+    submitted="./check-user.sh $@
+    "
+    expected="./check-user.sh $@
+    "
+    submitted+=$(bash 2>&1 "$script_dirS"/student/check-user.sh "$@")
+    expected+=$(bash 2>&1 "$script_dirS"/solutions/check-user.sh "$@")
+
+    diff -U 1 <(echo "$submitted") <(echo "$expected")
+}
+
+challenge "-i" "root"
+challenge "-e" "root"
+
+challenge "-i" "unknown_not_found"
+challenge "-e" "unknown_not_found"
+
+challenge
+challenge "-i" "root" "too" "many" "args"
+challenge "-t" "root"

sh/tests/comparator_test.sh

@@ -0,0 +1,27 @@
+#!/usr/bin/env bash
+
+# Unofficial Bash Strict Mode
+set -euo pipefail
+IFS='
+'
+
+script_dirS=$(cd -P "$(dirname "$BASH_SOURCE")" &>/dev/null && pwd)
+
+challenge() {
+    submitted=$(bash $script_dirS/student/comparator.sh "$@")
+    expected=$(bash $script_dirS/solutions/comparator.sh "$@")
+    diff <(echo "$submitted") <(echo "$expected")
+}
+
+for i in $(seq 1 10); do
+    n1=$(shuf -i 1-20 -n 1)
+    n2=$(shuf -i 1-30 -n 1)
+    challenge $n1 $n2
+done
+
+challenge "0" "0"
+challenge "10" "10"
+challenge "-11" "-11"
+challenge "14"
+challenge "-11" "-11" "4"
+challenge "as" "str"

sh/tests/custom-ls/folder1/.hidden

@@ -0,0 +1,11 @@
+
+
+Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vestibulum venenatis rutrum vehicula. Phasellus vehicula sagittis nibh, sed congue turpis suscipit a. Etiam sed nibh risus. Aenean aliquet urna ornare nisi bibendum, nec vehicula quam sagittis. Quisque varius vel tortor et rhoncus. Aliquam erat volutpat. Quisque sit amet cursus tortor.
+
+Aenean egestas dui est, eu vehicula mi vehicula vitae. Nunc rhoncus sit amet libero id tempus. Fusce mollis at urna sit amet iaculis. Ut dapibus sed enim eu fringilla. Proin pretium, orci eget mollis viverra, nibh nunc feugiat purus, vel consequat felis magna ac felis. Nam gravida imperdiet arcu. Aliquam est felis, iaculis non felis id, cursus convallis metus. Phasellus ac varius arcu. Aenean congue nisi ut urna tempor tempor. Mauris sit amet purus non risus auctor ultricies imperdiet vitae ex. Vestibulum maximus eros quam, a luctus massa condimentum ac. In commodo consequat diam, at rutrum massa interdum non. In sed rutrum dolor.
+
+Ut auctor porta felis, luctus ullamcorper ipsum pulvinar ac. Curabitur non pharetra purus. Nulla euismod leo nec massa convallis, ac facilisis orci lacinia. Maecenas eget magna tristique, eleifend est vehicula, mattis lectus. Etiam lectus sem, rutrum in nisl vitae, congue tincidunt urna. Praesent luctus auctor arcu, quis tristique ex suscipit eleifend. Phasellus congue tempus nisi vitae suscipit. Quisque ut luctus ipsum. Duis eget consequat massa. Vestibulum aliquam ligula quis felis imperdiet luctus. Phasellus efficitur gravida elementum. Sed quis mi tortor.
+
+Pellentesque luctus porttitor est ac tristique. Nulla facilisi. Duis eu tellus ac lectus vehicula tristique. Quisque magna ex, tristique at sollicitudin sed, blandit consequat erat. In hac habitasse platea dictumst. Mauris sodales, enim in scelerisque ullamcorper, leo lectus pharetra justo, eget dignissim eros libero vitae sapien. Donec elementum varius feugiat. Donec porta eu tellus non suscipit. Integer eu diam ultricies, sodales dolor a, ornare odio. Nulla congue commodo libero, facilisis aliquam nulla pellentesque nec. Aliquam et nisi facilisis, mollis est eu, ultricies metus. Praesent rutrum eros eu neque dapibus gravida. Nam et tortor congue, egestas leo et, euismod erat. Pellentesque ut efficitur risus. Integer sodales convallis arcu, eget mattis purus condimentum eu. Mauris urna neque, ornare in convallis eget, viverra varius lectus.
+
+Sed dapibus nibh neque, eget consequat odio placerat ac. Duis vel nunc erat. Suspendisse vel ornare leo. Sed ut augue turpis. Maecenas ullamcorper a est non pretium. Nulla venenatis interdum pretium. Nulla ut velit vel magna blandit lacinia. Etiam dictum vestibulum nulla non gravida. Pellentesque cursus enim euismod massa congue, vitae ullamcorper urna bibendum. Phasellus in tempus ex. Etiam quis ante a erat bibendum auctor.

sh/tests/custom-ls/folder1/asd

@@ -0,0 +1 @@
+Lorem ipsum dolor sit amet, consectetur adipiscing elit. Quisque eget nisl leo. Donec gravida tristique velit sit amet vulputate. In bibendum nisi tortor. Cras ullamcorper velit non mauris dapibus blandit. Maecenas rutrum semper mauris sed hendrerit. Morbi pellentesque est at enim suscipit semper. Donec tincidunt sem velit, sit amet cursus quam tincidunt eu. Class aptent taciti sociosqu ad litora torquent per conubia nostra, per inceptos himenaeos. Vivamus non libero vel est posuere ullamcorper sit amet nec lectus. Quisque sagittis augue euismod nulla ultricies elementum sit amet eu leo.

sh/tests/custom-ls/folder1/hello

@@ -0,0 +1,199 @@
+Lorem ipsum dolor sit amet, consectetur adipiscing elit. Fusce accumsan nisi vel mi sodales varius. Morbi in maximus ipsum. Maecenas pulvinar mi efficitur nulla luctus, quis tempus neque finibus. Curabitur ut tristique lacus. Donec a arcu vel mi hendrerit fermentum vitae ut urna. Nulla dapibus lacus in tellus tincidunt aliquam. Nullam tortor lorem, posuere sed nibh sed, fringilla mollis justo. Class aptent taciti sociosqu ad litora torquent per conubia nostra, per inceptos himenaeos. Donec ultricies ac magna sed hendrerit. Donec nec venenatis sapien. Vivamus maximus diam at lorem interdum ullamcorper at eu mauris. Pellentesque ante tortor, sagittis in euismod non, mollis at arcu. Vestibulum vitae eleifend nisl, cursus accumsan felis. Integer a rhoncus sem, at aliquam lectus.
+
+Vivamus molestie hendrerit efficitur. Vestibulum ut hendrerit mi, sed semper arcu. Suspendisse ullamcorper lobortis ante a tristique. Curabitur a placerat erat. Phasellus dapibus vitae ante vitae sollicitudin. Cras porta sit amet ante sed viverra. Curabitur ut elit tincidunt, facilisis ligula id, condimentum erat. Integer sit amet congue elit.
+
+Praesent laoreet suscipit libero finibus convallis. Integer dapibus, sapien ut porta mollis, tortor sapien pellentesque ligula, at consequat mi metus sed nisi. Nulla lacinia nisi vel velit gravida, eu gravida metus faucibus. Phasellus blandit cursus metus quis volutpat. Pellentesque tempus aliquet lorem id varius. Phasellus placerat iaculis porta. Nulla nunc libero, lacinia sit amet odio pretium, malesuada molestie dui. In hac habitasse platea dictumst. Nulla congue consectetur nulla, vitae euismod urna. Aliquam massa risus, elementum ut fringilla mollis, elementum ut neque. Donec odio justo, tempor sit amet commodo nec, malesuada ultricies magna. Vivamus congue ullamcorper velit, nec pulvinar nisi fermentum eu. Morbi sit amet mi egestas, pulvinar augue ut, euismod leo. Ut auctor condimentum elementum.
+
+Sed rhoncus facilisis sem, a congue ex congue ac. Sed dictum est lorem, eget fermentum enim molestie ut. Aenean sed sagittis nunc, in dapibus justo. Sed faucibus hendrerit felis. Duis aliquam tempor erat at porta. Morbi bibendum bibendum risus, non mattis nisl venenatis quis. Aliquam erat volutpat. Nunc ac neque arcu. Vivamus et ipsum maximus, porttitor ante in, pretium mauris. Suspendisse molestie tempus ante ut interdum. Nulla sed ex vehicula nisl fermentum viverra eget a sapien. Aliquam tempus scelerisque dignissim.
+
+Pellentesque massa lorem, rutrum a lorem et, vehicula fermentum orci. Mauris quis viverra eros. Donec lobortis iaculis justo non sollicitudin. Nullam scelerisque volutpat ultrices. Etiam fermentum congue tortor nec molestie. Sed laoreet nisi nec aliquam condimentum. Sed hendrerit tempor lobortis. Sed tempor magna at euismod semper. Donec nec felis orci. Donec sollicitudin placerat lorem, quis semper elit mollis ac. Morbi semper eu odio ac gravida.
+
+Aliquam sollicitudin nisi nec nibh hendrerit fermentum. Quisque laoreet, enim sit amet finibus lobortis, nulla nibh laoreet leo, quis elementum nulla nulla in dolor. Sed id porta enim. Donec eu porttitor purus. Nunc ac augue sagittis, pretium sapien ut, aliquam purus. Curabitur lacus velit, hendrerit nec sagittis sit amet, vulputate sit amet magna. Sed ut molestie magna, sit amet dapibus felis. Proin aliquet nec neque vel molestie. Mauris dictum risus nec tincidunt maximus. Proin sagittis nisi lorem, vel vestibulum purus tincidunt id. Donec pharetra nisi lacus, quis ornare odio vestibulum non. Nunc ut condimentum purus, eget porta libero. In urna nulla, aliquam nec hendrerit a, sodales vel purus.
+
+Suspendisse non semper enim. Nunc varius est ac arcu cursus, accumsan varius lorem porttitor. Morbi viverra diam tortor, ut sodales eros aliquam id. Orci varius natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. Donec blandit sit amet metus sit amet cursus. In faucibus sapien ut dolor blandit, a sollicitudin urna viverra. Vivamus posuere tellus ac elit lobortis, vel dignissim felis sodales. Aliquam ut arcu ligula. Proin nec magna semper, condimentum sem at, fermentum est. Morbi sit amet suscipit lectus. Nam porttitor libero ipsum, in sagittis est efficitur sagittis. Quisque eleifend neque id eros dapibus commodo. Nam in diam vel felis bibendum cursus non ac quam. Sed id sapien mollis, ultricies nisi sed, maximus sapien. Nulla ullamcorper at ante et gravida. Duis quis tortor libero.
+
+Cras vitae mi eget metus scelerisque malesuada. Nulla tempor ipsum enim. Phasellus congue, eros nec dictum dignissim, elit lacus bibendum augue, et pharetra lacus nisi vitae arcu. Interdum et malesuada fames ac ante ipsum primis in faucibus. Integer condimentum lacinia nulla in pretium. Vestibulum ipsum ante, rhoncus vitae quam id, faucibus porttitor odio. Donec vulputate, nunc vel bibendum faucibus, mauris metus rutrum lacus, eget pretium ex lacus eu ante. Duis nec nulla cursus, lacinia ipsum ut, placerat nulla. Nulla facilisi. Praesent efficitur nunc a odio pretium fringilla. Nullam viverra ornare mi a feugiat. Proin at posuere orci. Nulla placerat turpis at sem aliquet consequat. Pellentesque in velit id turpis aliquet tempor.
+
+Fusce ullamcorper ultrices mauris, vitae convallis purus consectetur in. Mauris ac nibh arcu. Pellentesque blandit rutrum pretium. Quisque auctor ipsum blandit ante scelerisque, nec hendrerit enim eleifend. Aliquam eros enim, finibus vitae semper a, lobortis ut lorem. Maecenas eget nunc rutrum, vulputate arcu a, suscipit felis. Proin ac nisi neque. Phasellus placerat vestibulum tortor sed tincidunt. Praesent suscipit felis nec purus molestie bibendum. Aenean ornare tincidunt eros fermentum lobortis. Nunc quis augue in ante sodales consectetur id a nisi.
+
+Etiam elit mi, iaculis id urna et, blandit euismod lectus. Proin pharetra, massa vel cursus placerat, dui sapien ullamcorper felis, sed placerat enim risus in neque. Ut metus tellus, bibendum condimentum urna ut, egestas malesuada mauris. Maecenas vel efficitur lacus. Interdum et malesuada fames ac ante ipsum primis in faucibus. Vestibulum dictum a quam quis consequat. Sed nec libero iaculis, mollis enim non, commodo libero. Nunc laoreet interdum purus at tincidunt. Proin rutrum diam ex, nec fringilla ante consequat id. Suspendisse potenti. Vivamus in justo libero. Sed sodales iaculis tellus et ornare. Fusce fermentum interdum libero ut pharetra. Sed eget venenatis mauris.
+
+Suspendisse commodo posuere augue, vitae rutrum massa fermentum vel. Nunc dignissim lobortis convallis. Nam hendrerit egestas aliquam. Ut efficitur sem vitae libero iaculis condimentum. Nam ac dui et ante posuere interdum pulvinar ut ipsum. Integer dictum, tortor in blandit vestibulum, tortor quam mollis diam, et dictum felis tellus quis felis. Mauris sed ex aliquet, sollicitudin enim quis, semper enim. Nam feugiat ut diam ut pulvinar.
+
+Cras eleifend sollicitudin mi vitae molestie. Vivamus facilisis maximus nulla, et vehicula dui sagittis at. Mauris eget augue orci. Sed vitae magna et velit elementum blandit. Curabitur aliquet rutrum mi, finibus aliquet eros egestas a. Ut vestibulum, purus vel lobortis tempus, odio neque lobortis enim, quis pellentesque neque justo eget velit. Aliquam erat volutpat. Aenean vel cursus turpis. Integer vel justo eu nunc dignissim aliquam. Nam vitae diam id lorem interdum vehicula. Donec ut erat molestie sem lacinia efficitur.
+
+Duis vestibulum, ipsum vitae blandit ullamcorper, erat ex sagittis elit, ut elementum dui metus non velit. Praesent semper magna non magna vestibulum, et tempus tortor mattis. Nam ut risus bibendum, consequat mi non, congue arcu. Duis aliquam facilisis massa, et aliquet massa gravida a. Donec et ex orci. Cras mollis mi elit, nec auctor justo semper ut. Curabitur euismod interdum erat. Ut egestas turpis vel magna dictum sagittis. Quisque eu scelerisque ante, pellentesque gravida orci. Vivamus in fermentum ipsum. Vestibulum eu commodo sem. Suspendisse in lectus vel massa tincidunt pharetra sed eget eros. Sed sollicitudin egestas nisl. Aliquam consequat erat in imperdiet pharetra. Vestibulum fermentum dolor tortor, id faucibus lacus blandit mattis. Sed laoreet leo vitae lacinia pretium.
+
+In non lorem sem. Aliquam in finibus ipsum. Nunc et interdum elit. Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas. Proin posuere bibendum turpis, mattis dignissim dolor convallis vel. Maecenas ac erat quis magna mattis consectetur interdum ornare risus. Curabitur quis neque mauris.
+
+Cras vitae mollis nibh, malesuada vehicula velit. Pellentesque euismod, lacus sed sodales mattis, ipsum ex egestas mauris, non sagittis elit dui nec sem. In vitae fermentum erat. Pellentesque velit diam, pellentesque sit amet dolor ac, dictum vestibulum felis. Nulla hendrerit ex vitae molestie semper. Nam vestibulum accumsan odio, sit amet suscipit ex lacinia a. Quisque rutrum dignissim nunc, ut vehicula nulla scelerisque vel. Integer sollicitudin tempus nibh in vestibulum. Donec non posuere leo. Pellentesque malesuada ullamcorper vulputate. Nam iaculis lectus vel feugiat dictum. In pellentesque purus lorem, ut auctor urna vestibulum sed. Nulla facilisi. In id metus vitae ligula sollicitudin dignissim. Ut commodo vehicula odio, at aliquam arcu volutpat id.
+
+Nunc sed risus molestie, tincidunt tortor ac, ornare mauris. Maecenas vel nisi ac sem malesuada volutpat. Suspendisse finibus, elit in semper sagittis, sapien nisi bibendum nisi, non porta est nulla at eros. Phasellus tristique ex lectus, et aliquet ante vehicula vitae. Duis a tempus enim, vel porttitor velit. Aliquam lacinia augue nec justo ultricies pharetra. Fusce eros dolor, suscipit ut sapien sit amet, sodales vestibulum mauris. Aenean eget sem justo. Quisque consectetur tempor nibh a pellentesque. Nulla fermentum nibh ac tristique mollis.
+
+Sed eget arcu ac purus consequat tincidunt. Fusce auctor rhoncus magna eget bibendum. Cras tempor imperdiet lacus id vehicula. Pellentesque ornare augue nec eros dictum, at ultrices justo suscipit. Aliquam consequat, ex sit amet gravida ultrices, arcu odio finibus tellus, vitae iaculis purus est a est. Fusce vulputate nisi at neque facilisis rutrum. Curabitur sed consectetur sapien, et dapibus mi.
+
+Nunc arcu lorem, pharetra quis mattis non, iaculis vel magna. Phasellus consectetur elit nec iaculis pellentesque. Phasellus lobortis ex ex, sed imperdiet ante posuere a. Phasellus volutpat dui ut orci placerat, id laoreet libero sagittis. Nulla dignissim accumsan arcu, a pellentesque mauris ultricies ut. Ut in metus dolor. Vivamus blandit odio urna, sed euismod ex scelerisque elementum. Nunc lobortis efficitur nunc eget suscipit. Nunc at nisi diam. Fusce blandit, est a condimentum placerat, elit nisl malesuada tellus, sit amet aliquet quam enim sed eros. Morbi eget placerat lorem. Nunc ultrices odio nisl, suscipit porttitor est congue eu. Nunc rhoncus risus eleifend, ultrices nisi nec, laoreet felis.
+
+Phasellus consectetur odio id pellentesque sollicitudin. Pellentesque volutpat sem quis malesuada pretium. Vestibulum a felis sit amet nulla lobortis efficitur consectetur at justo. Sed ut arcu vitae nibh eleifend pulvinar nec vulputate est. Donec pretium, elit sed commodo commodo, metus elit volutpat tortor, eleifend bibendum metus augue vel elit. Fusce placerat justo luctus purus condimentum sollicitudin. Donec magna erat, vehicula eget lectus a, dapibus fringilla enim. Donec varius felis at libero ultricies tempus. Donec ligula lacus, fringilla non metus sed, pellentesque malesuada eros. Aliquam vel libero vitae turpis gravida condimentum sed tristique nunc. Maecenas aliquam urna nec dolor vulputate congue. Morbi mattis purus quis nisi dictum, eu ultricies risus euismod. Pellentesque mi velit, imperdiet a cursus nec, consequat ac dui. Suspendisse ullamcorper elit quis turpis porta, non blandit dui auctor. Nullam et diam facilisis, consequat augue pulvinar, molestie orci.
+
+Etiam ac scelerisque nulla. Cras at justo vel enim lacinia sagittis sit amet nec tellus. Nunc convallis commodo pretium. Maecenas condimentum nulla suscipit, commodo neque sit amet, fermentum enim. Curabitur dui diam, gravida in tellus vitae, luctus feugiat nibh. Vestibulum in aliquam tellus. Nunc tempus odio vel lectus vehicula, sit amet lobortis libero condimentum.
+
+Nam dictum, erat at hendrerit tincidunt, nulla lectus convallis sem, a pretium lectus nunc non nulla. Nulla gravida vulputate justo, eu viverra felis laoreet vel. Suspendisse arcu eros, rutrum sit amet molestie vitae, cursus sed lorem. Fusce orci metus, aliquam vel ex sed, rhoncus commodo augue. Donec a eros a nibh feugiat blandit. Proin venenatis pretium pretium. Praesent nec arcu leo. Fusce lacus turpis, porttitor vitae commodo id, hendrerit eget sem. Etiam cursus tincidunt eros ut venenatis. Vestibulum ultricies consectetur leo, eu imperdiet leo ultricies quis. Donec in enim sit amet mi imperdiet dignissim. In egestas interdum risus, sit amet egestas orci lobortis eu. Cras cursus euismod nisi sit amet euismod. Curabitur malesuada venenatis sem ac maximus. Donec mattis viverra euismod. Curabitur aliquet enim tempus dapibus porttitor.
+
+Nulla sit amet volutpat enim. Nam gravida mauris erat, at sagittis odio iaculis quis. Orci varius natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. Suspendisse dapibus id velit ac viverra. Nullam diam massa, condimentum in velit at, eleifend finibus nisi. Aliquam ut tellus non massa semper blandit. Maecenas condimentum venenatis sagittis. Sed quis ante a orci mollis dictum. Etiam interdum tempus purus at aliquam. Vestibulum cursus pulvinar est vitae lacinia. Quisque nibh risus, cursus id scelerisque vitae, elementum quis diam. Aliquam pharetra massa a ex ultrices maximus. Morbi laoreet iaculis leo, vitae maximus odio.
+
+Fusce volutpat, lacus non porttitor venenatis, nulla enim consectetur lorem, vel fermentum leo tellus non ex. Quisque pellentesque magna nec nibh blandit tincidunt. Nulla facilisi. Etiam at vulputate metus. Etiam posuere imperdiet urna, non dictum dui finibus laoreet. Vivamus vitae fringilla velit. Suspendisse tortor odio, malesuada eget nibh in, lacinia placerat felis. Fusce id lobortis ipsum, eu posuere erat. Donec vel justo erat. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Mauris molestie gravida tellus, vel suscipit neque accumsan sed. Duis ac felis in mi venenatis rutrum non ac massa. Vivamus orci velit, efficitur non arcu quis, cursus gravida quam. Curabitur elementum felis luctus lobortis laoreet.
+
+Donec pellentesque, lorem a imperdiet faucibus, leo lectus porttitor nulla, eget consequat neque ex ut est. Aenean massa tortor, iaculis id libero in, gravida sagittis justo. Duis sit amet placerat sapien, vel dictum quam. Proin maximus quam libero, a dictum mi tincidunt ultrices. Duis lobortis nisi tempor mauris egestas, in condimentum augue rutrum. Vivamus eget libero eu lorem malesuada tincidunt eu vitae nunc. Nam justo diam, eleifend id enim sit amet, eleifend facilisis purus. Phasellus convallis quam vitae augue auctor pretium. Vivamus et tristique arcu. Maecenas et urna porta, varius dui a, scelerisque mi. Fusce eget ex aliquam, commodo augue sed, ornare lacus. Quisque congue dapibus nisl.
+
+Morbi pretium ac arcu nec accumsan. Nullam non cursus neque. Etiam eget mauris congue, faucibus felis sed, bibendum sapien. In efficitur ipsum eget bibendum pharetra. Aliquam gravida, leo ac dapibus feugiat, turpis ante ornare dui, sit amet consequat metus nunc sed nibh. Morbi pellentesque magna a justo vulputate, sed convallis turpis volutpat. Nulla accumsan odio sed nibh vulputate vulputate in quis tellus. Ut quis dolor cursus, accumsan tellus sed, condimentum mauris. Nam ullamcorper nulla in pellentesque aliquet.
+
+Morbi vulputate finibus odio vitae vulputate. Quisque et imperdiet magna. Suspendisse sem nunc, pulvinar ac cursus sed, finibus vitae est. Suspendisse convallis, erat ornare tincidunt eleifend, turpis orci dapibus dolor, vitae mattis massa lectus ac lacus. Nunc id sem tincidunt, dapibus enim eget, tristique ex. In eu dictum enim. Curabitur ut efficitur enim. Integer ac eros mi. Pellentesque tempus hendrerit nunc, quis placerat quam lobortis at. Ut euismod ornare urna efficitur rhoncus. Duis in lorem enim.
+
+In hac habitasse platea dictumst. Curabitur tincidunt sollicitudin lacus, id interdum velit auctor at. Proin eget risus est. Nunc enim mi, vestibulum ac risus sit amet, tristique rutrum tortor. Fusce quis nulla mattis, fermentum dolor in, semper nulla. Pellentesque vel lectus magna. Nam eget arcu suscipit, varius justo a, ornare quam. Donec vitae sollicitudin nibh, eget iaculis felis. Nullam commodo purus et magna finibus, vitae finibus ipsum aliquam. Vestibulum condimentum dui dolor, ut dictum mi maximus eu. Nunc et pretium sem. Etiam accumsan eu felis in convallis. Nullam pulvinar vestibulum tellus nec rutrum. Suspendisse semper, velit vitae vulputate posuere, nunc dolor egestas neque, at efficitur turpis metus nec leo. Etiam bibendum massa condimentum iaculis vestibulum. Morbi ipsum purus, efficitur eget maximus ac, mattis id massa.
+
+Nam volutpat velit sed nulla ullamcorper facilisis. Sed commodo non turpis sed imperdiet. Pellentesque malesuada nibh eget commodo accumsan. Curabitur iaculis eget sapien ac aliquam. Etiam sed ex lectus. Vivamus et urna erat. Nunc quis efficitur felis. Nulla sagittis lacus a ex tristique, vehicula vulputate enim suscipit. Pellentesque pulvinar vitae leo pellentesque gravida. Sed efficitur pretium interdum. Aenean non rutrum ligula. Etiam ultrices nisl nec tempor efficitur.
+
+Nulla eget nulla dictum, elementum lacus vitae, congue tellus. Proin sit amet pellentesque mauris, sit amet aliquet dolor. Etiam eget nulla ligula. Vestibulum imperdiet pretium mauris, ac tempus erat eleifend at. Ut condimentum fringilla ex ut faucibus. Cras eros nunc, iaculis et maximus vitae, auctor sed sapien. Fusce eu odio non ipsum posuere sagittis. Praesent nunc arcu, vestibulum ut condimentum eu, aliquam eu orci. Fusce in arcu ultricies, dictum enim consequat, facilisis turpis. Pellentesque nunc nisi, ultrices et leo et, consequat tincidunt lorem.
+
+Pellentesque sed faucibus ex. Suspendisse ultrices vulputate dolor. Nam eu dolor suscipit, vehicula sapien non, tempus orci. Quisque eget porta nisi, id tincidunt tellus. Fusce sodales purus et ligula consequat, quis sodales metus tempor. Sed dictum libero placerat nibh tincidunt, eget aliquam orci feugiat. Suspendisse ullamcorper sapien quis porttitor sagittis. Integer vel laoreet elit. Mauris convallis viverra sapien eget accumsan. In hac habitasse platea dictumst. Sed et arcu nibh. Vestibulum ante ipsum primis in faucibus orci luctus et ultrices posuere cubilia curae; Curabitur quis dictum tortor, at imperdiet lorem.
+
+Sed pulvinar nisi eu ante condimentum rutrum. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed malesuada mauris nec dui rhoncus lacinia. Curabitur tincidunt ullamcorper felis ac ullamcorper. Suspendisse dolor est, suscipit ac ligula a, molestie dapibus lectus. Morbi semper, tortor nec tincidunt elementum, nisl tortor consectetur massa, in sodales urna leo sit amet justo. Fusce eu sem eget diam blandit venenatis vel in odio. Vivamus volutpat feugiat sem, sit amet pellentesque orci molestie sed. Proin tincidunt hendrerit nibh, in blandit lacus. Maecenas mattis finibus odio, nec scelerisque ligula aliquam id. Quisque viverra velit eget sem suscipit dapibus. Integer pretium, turpis non commodo condimentum, est felis gravida arcu, vitae elementum lorem erat sed sapien.
+
+Mauris sed urna eu lacus sagittis rhoncus. Sed eleifend id erat quis vestibulum. Suspendisse mattis tempor neque, in vestibulum nisl molestie sit amet. Nulla blandit lectus semper dui accumsan molestie. Ut in dui non augue laoreet imperdiet vitae a orci. Quisque a leo hendrerit, ultrices sem vel, rhoncus augue. Donec quis facilisis enim, ut efficitur enim. Donec finibus libero vitae sem fringilla, at pharetra arcu volutpat. Duis ut mollis dolor. Vestibulum maximus justo nisi, id euismod risus sodales vel.
+
+Sed ut interdum quam, quis mollis lorem. Quisque eget arcu nec justo porta malesuada quis sed odio. Proin tempus enim ac neque efficitur sollicitudin. Fusce a venenatis dui, eget tincidunt sapien. Aliquam sodales hendrerit turpis sit amet commodo. Donec id dui in enim dignissim dignissim a ut lacus. Donec varius bibendum urna sollicitudin aliquet. In hac habitasse platea dictumst.
+
+Donec suscipit cursus porta. Integer interdum ante eget suscipit egestas. Donec ultricies dignissim lectus, a aliquet diam auctor nec. Curabitur sapien turpis, facilisis eleifend metus id, euismod ultricies leo. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vivamus rutrum nisi vel leo vulputate dapibus. Fusce sit amet massa sed velit fermentum maximus. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer ante ligula, sollicitudin sit amet facilisis quis, consequat id ex. Sed imperdiet venenatis tellus, vel gravida metus tempor molestie. Phasellus eleifend, neque eu fringilla fermentum, diam odio luctus lacus, ullamcorper viverra urna elit euismod metus.
+
+Vestibulum sed arcu purus. Quisque sed tellus mattis, convallis ipsum eget, finibus turpis. Nulla quis accumsan sapien. Nam risus felis, finibus at sapien ac, commodo pharetra turpis. Vestibulum vel arcu dictum, gravida purus in, volutpat nisi. Vivamus risus felis, faucibus et erat in, tristique mollis nisi. Morbi sollicitudin ipsum vel diam placerat vestibulum. Morbi dictum velit et posuere tincidunt. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Donec scelerisque risus eu hendrerit pharetra.
+
+Fusce accumsan tempor est, nec fermentum augue posuere et. Etiam aliquam ullamcorper tortor iaculis condimentum. Aenean vel ullamcorper leo. Quisque consequat sit amet sapien id sodales. Vestibulum pretium dui a eros mollis volutpat. Quisque ac sodales felis. In hac habitasse platea dictumst.
+
+Nullam placerat vestibulum ex sed porta. Pellentesque vel est iaculis, pretium neque eu, condimentum elit. Mauris vitae congue sem. Praesent molestie commodo orci a viverra. Donec consectetur tempus imperdiet. Aenean sed elit at turpis consequat ultricies. Curabitur consequat a orci sit amet feugiat. Donec fringilla, risus sed lobortis efficitur, arcu arcu elementum lorem, eu pulvinar elit eros at massa.
+
+Mauris nec molestie turpis. Sed porttitor, orci vel rutrum accumsan, risus arcu pellentesque ante, a pretium libero sem sed lectus. Quisque ornare ipsum id libero sagittis scelerisque in nec lorem. Nunc sagittis eros diam, in elementum enim mattis vel. Duis rhoncus volutpat aliquam. Mauris hendrerit ex aliquam faucibus vestibulum. In viverra lobortis magna. Nullam tincidunt nunc id neque efficitur, et commodo dolor bibendum.
+
+Duis fermentum massa vitae nisi accumsan, et volutpat libero porttitor. Quisque a nibh et mauris lobortis pharetra nec ac diam. Donec ultricies, tellus nec feugiat porta, felis quam accumsan ipsum, vitae laoreet sapien sem id ligula. Mauris vel erat at sapien consectetur dignissim. Aenean placerat tellus in leo fringilla, non condimentum magna placerat. Ut at justo maximus, tristique quam id, euismod orci. Morbi eget metus erat. Donec ultrices odio eget velit accumsan, vitae blandit leo dignissim. Vivamus quis auctor ipsum. Etiam placerat auctor rhoncus. Curabitur lacus justo, rutrum vitae placerat in, hendrerit ultricies augue. Integer vestibulum bibendum magna vehicula hendrerit. Nulla vehicula leo ut est feugiat imperdiet et id lorem. Maecenas quis lacus lobortis, viverra dui et, dapibus eros.
+
+Fusce ac sapien ut odio blandit pellentesque vitae nec mauris. Aliquam a ipsum id urna condimentum dictum. Proin vehicula bibendum ligula vitae consectetur. Nullam id erat mattis, vehicula velit eu, finibus nisl. Fusce lorem neque, vehicula sed diam non, viverra venenatis ligula. Fusce fermentum turpis at volutpat mollis. Praesent nec lobortis ligula. Nulla magna nulla, consectetur vitae tincidunt ut, eleifend eu nulla. Pellentesque mollis erat et interdum vulputate.
+
+Sed tincidunt pretium dui, et pellentesque ex interdum vitae. Mauris non pretium lectus. Etiam in aliquam dui, nec porttitor turpis. Quisque sagittis, tellus in tincidunt pellentesque, arcu urna fringilla sem, a dictum libero metus ac enim. Mauris mollis nibh quis dui finibus, eu porta arcu efficitur. Vivamus neque ipsum, vulputate a efficitur ut, laoreet eu dui. Sed in nisl mattis, tincidunt orci nec, finibus dui. Donec lobortis vitae nibh eget lobortis. Integer at fringilla dui, consectetur fringilla libero. Pellentesque magna augue, dignissim non sodales nec, convallis quis tellus. Proin tristique, mi et malesuada bibendum, tortor diam consequat felis, et rhoncus quam ante a tellus. Aenean gravida, justo eu fermentum ultricies, elit turpis vehicula felis, nec viverra lorem velit id lorem.
+
+Aenean luctus scelerisque odio at mattis. Suspendisse sit amet malesuada leo. Nunc nec condimentum enim. Maecenas finibus massa diam. Morbi blandit scelerisque enim, id lobortis odio pellentesque in. In quis mi dui. In dignissim, leo et aliquam placerat, erat urna placerat purus, venenatis convallis ligula nibh euismod urna. Ut interdum eget turpis vel tincidunt. Nulla facilisi. Integer scelerisque augue nunc, nec pharetra purus volutpat id. Aliquam bibendum ac enim et tempor. Vivamus sit amet nisi vel lacus tristique euismod at eu eros. Fusce sed nisi ipsum. Aenean felis magna, condimentum non sapien in, pharetra maximus dui. Sed neque felis, sodales sed nisi sollicitudin, congue congue nulla.
+
+Mauris consectetur dolor ac leo luctus venenatis. Proin blandit commodo lacus sed mollis. Nam vel est at justo laoreet finibus vitae vel turpis. Donec at augue libero. Sed accumsan justo sed est tempus blandit. Cras eros diam, pellentesque fermentum tempor in, malesuada non velit. Cras volutpat ante diam. Vivamus luctus tempus nisi, sit amet elementum massa tincidunt vitae. Suspendisse hendrerit, tortor sit amet venenatis interdum, tortor neque dictum nibh, sit amet interdum dui lacus quis lectus. Sed nisi sem, rhoncus sed aliquet sed, finibus et ante. Nulla blandit orci eu nibh ullamcorper porta. Praesent id magna id neque cursus facilisis.
+
+Proin convallis, ligula eu fringilla tempus, risus felis sagittis quam, in tempor nisi magna ac risus. Sed imperdiet accumsan magna. Mauris maximus diam eget tincidunt luctus. Duis libero risus, molestie vitae orci consectetur, elementum tristique nisl. Vestibulum ante ipsum primis in faucibus orci luctus et ultrices posuere cubilia curae; Duis quis diam nunc. Praesent iaculis lacus ut diam tristique consectetur. Vivamus dui ante, mattis eget eros a, tincidunt lacinia risus. Ut ultrices porttitor odio, ac scelerisque enim efficitur id. Orci varius natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. Aliquam vehicula accumsan erat, id mollis nisl accumsan eu. Nunc ipsum sapien, egestas et sem congue, consequat consectetur nunc. Vivamus pretium est ipsum, eget condimentum est bibendum sed. Donec lobortis blandit est, sit amet consectetur arcu. Vivamus sapien est, convallis sed laoreet eget, ornare eget tellus.
+
+Sed condimentum, magna gravida dignissim hendrerit, nisl nunc vehicula justo, ut vehicula ipsum purus non dolor. Curabitur quis tellus porttitor, venenatis tortor eu, interdum justo. Suspendisse bibendum orci sit amet malesuada tincidunt. Sed maximus feugiat tempus. Nullam in ante ante. Nullam convallis arcu quis sapien facilisis, id dignissim sapien malesuada. Cras tempor, enim in consequat vestibulum, dui nisi maximus nulla, et dignissim justo odio non orci.
+
+Suspendisse fringilla turpis sed tortor efficitur, a placerat nisi vestibulum. Etiam convallis lacus vitae dignissim tempor. Suspendisse id mauris a risus bibendum maximus. Nullam dignissim sit amet ligula ac lobortis. Nullam feugiat est quis tortor fermentum lobortis eget eget libero. Donec non suscipit nulla. Sed ac lacus neque. Nunc imperdiet mi ut metus sagittis mollis. Sed varius sodales accumsan. Donec auctor elementum sagittis. Donec odio mauris, faucibus quis mollis nec, efficitur at eros. Maecenas massa ligula, fringilla eget mi quis, placerat vehicula lacus. Maecenas leo nibh, bibendum ac sem sed, dignissim iaculis nibh.
+
+Donec in tincidunt arcu. Quisque commodo rutrum ornare. Aenean eu purus pretium, faucibus justo eget, pharetra urna. Fusce pharetra facilisis sapien sed luctus. Cras non elit vestibulum, rutrum lectus ut, bibendum erat. Duis vitae est eu libero vehicula viverra at vitae ipsum. Nunc justo ligula, tempor vitae ex sit amet, consectetur placerat ex. Aenean ligula dui, fermentum vel semper sed, semper eu orci. Etiam gravida sagittis eros, et pellentesque justo. Curabitur et pulvinar velit. In semper odio leo, ut pharetra nunc accumsan nec. Sed velit augue, ultrices in ante blandit, feugiat pretium massa. Maecenas bibendum, nibh eget suscipit ultrices, elit felis auctor risus, nec dictum nibh neque ac diam. Sed consequat arcu id nibh tristique sodales. Phasellus vulputate placerat velit sed condimentum.
+
+Nulla facilisis leo nec efficitur venenatis. Phasellus ac interdum ligula. Curabitur pharetra laoreet ipsum, ac porta nunc tristique eu. Morbi mollis varius massa ac egestas. Vivamus sed nibh tellus. Pellentesque auctor sapien aliquet nunc semper venenatis. Aenean dignissim venenatis feugiat.
+
+Donec ut tincidunt sapien, ut consequat felis. Morbi luctus orci in elit luctus blandit. Proin fringilla odio vel elit tristique tincidunt. Integer tellus metus, vestibulum eu eleifend eu, finibus id velit. Curabitur nec turpis accumsan, aliquam nibh nec, luctus velit. Curabitur id velit eget quam scelerisque pretium et a mauris. Suspendisse vel felis lectus. Maecenas a augue lectus. Sed viverra maximus nisl, at tempor lectus ornare ut. Donec ac semper velit. Nunc hendrerit sapien et tellus fermentum sagittis.
+
+Sed malesuada enim et est tincidunt, a tristique mi porttitor. Sed interdum, orci non sagittis sagittis, ipsum enim aliquet erat, quis pharetra sapien lacus vel tellus. Nunc dictum nunc sed suscipit tempus. In hac habitasse platea dictumst. Maecenas gravida vestibulum faucibus. Nam eget tempus odio. Maecenas a eleifend massa, ut efficitur odio.
+
+Integer fermentum lacus turpis, at aliquet diam convallis non. Ut ac arcu vitae felis dapibus porttitor a sit amet orci. Suspendisse nisl libero, fringilla non posuere vel, pharetra nec nisl. Pellentesque et euismod nibh, eget ornare urna. Class aptent taciti sociosqu ad litora torquent per conubia nostra, per inceptos himenaeos. In viverra faucibus purus, a congue felis interdum ut. Aliquam vitae tellus sed felis mattis elementum. Fusce eleifend lorem ut ex euismod euismod. Donec ac consectetur augue. Cras posuere neque massa, sed euismod urna mattis ac. Mauris nec sollicitudin lacus. Sed eu massa et lorem viverra bibendum sed sit amet arcu. Vivamus gravida hendrerit mi, cursus iaculis nunc imperdiet a. Quisque purus mauris, viverra sit amet euismod sit amet, rutrum id nibh. Donec dignissim diam nibh, quis rhoncus nulla suscipit at. Mauris dapibus, tellus et efficitur aliquet, tellus diam vehicula enim, ac fermentum ante justo nec turpis.
+
+Nullam sapien orci, pharetra a elit eu, interdum interdum libero. Ut eu pulvinar ipsum. Aliquam hendrerit elit arcu, vel volutpat nisl convallis id. In maximus justo sed magna euismod sagittis. Morbi fermentum ante nisi, id volutpat nisl congue a. Praesent sed efficitur turpis. Pellentesque eu turpis nec massa semper semper. Donec tincidunt ac lacus eget maximus. Quisque vel tortor eros. Nam vitae urna a mi maximus vestibulum.
+
+Phasellus et eros lectus. Mauris luctus diam a dolor sagittis, quis lacinia odio euismod. Ut sed porttitor sem. Mauris faucibus vitae ex et malesuada. Nullam quis tincidunt diam, et lobortis ipsum. Pellentesque scelerisque metus vel luctus porttitor. Donec eu vehicula erat, ornare efficitur elit. Praesent ullamcorper est sit amet odio finibus malesuada. Nulla molestie id odio quis semper. In ultrices, massa quis consequat placerat, mi magna porttitor enim, sed blandit nulla nunc nec nunc. Duis suscipit, mauris sit amet aliquet sodales, arcu massa efficitur enim, et sollicitudin urna nisi sed mi.
+
+Nunc tempus dolor lorem, consectetur semper dolor feugiat in. In imperdiet ullamcorper erat id accumsan. Sed at molestie sem. Phasellus sagittis consequat orci, in feugiat odio imperdiet ac. Aliquam auctor eros vulputate dolor rhoncus, ac hendrerit enim lacinia. Morbi augue orci, sollicitudin sed consequat fermentum, hendrerit sed velit. Sed a turpis aliquet, fringilla elit eu, dictum libero. Donec aliquam urna mauris, vel interdum urna congue vel. Sed ex tellus, consectetur sed imperdiet at, finibus efficitur nisl. Phasellus aliquam semper libero finibus rhoncus. Pellentesque dolor augue, porta eu urna eu, ultricies lacinia metus. Praesent cursus ante dapibus, volutpat nunc id, pharetra diam. Nam iaculis enim non faucibus dapibus. Vivamus est augue, aliquam ac ipsum eget, vestibulum commodo lorem. Proin porttitor nibh vitae est fermentum, id suscipit dolor elementum.
+
+Praesent tempor fermentum tellus, vitae tincidunt turpis mattis a. Etiam eu magna et eros iaculis ullamcorper. Pellentesque pharetra turpis metus, nec bibendum leo fermentum et. Sed arcu nulla, gravida nec leo quis, efficitur suscipit libero. Quisque purus mi, auctor vitae quam quis, tincidunt porta sapien. Proin eu facilisis orci, at eleifend lectus. Aenean blandit viverra nulla non tempor. Duis venenatis tortor nec finibus interdum.
+
+Duis sed tortor nulla. Donec scelerisque sem purus, id varius risus lobortis ut. Proin velit ipsum, vulputate vitae viverra ac, viverra quis ante. Maecenas eget sapien non sem volutpat elementum finibus eu nunc. Pellentesque non ex quis leo gravida malesuada quis mollis eros. Fusce mollis nunc eget risus vehicula eleifend in sed lorem. In hac habitasse platea dictumst. Nulla quis pretium nisl. Vivamus dignissim, nibh in luctus ornare, nunc risus commodo enim, et aliquet libero neque ut orci. Suspendisse sed quam eget urna viverra porta. Aenean ligula ligula, congue vel ullamcorper et, vehicula quis tortor. Sed dictum nec nulla eget sollicitudin. Aliquam molestie ligula justo, sit amet faucibus dolor ultricies eget.
+
+Aliquam et risus posuere, malesuada nibh id, malesuada sapien. Curabitur lacus ex, ullamcorper id pharetra at, maximus vel augue. Interdum et malesuada fames ac ante ipsum primis in faucibus. Donec varius felis quis tortor laoreet volutpat. Quisque iaculis posuere enim, tincidunt rhoncus erat sodales vel. Etiam sit amet purus suscipit, tempus lacus non, semper tellus. Pellentesque in aliquet urna. Vivamus a justo bibendum, tristique tellus pretium, fringilla eros.
+
+Cras eget arcu condimentum, varius eros vel, fermentum quam. Duis ut turpis ut erat laoreet pulvinar et non lectus. Nam mattis libero quis congue pharetra. In vulputate quis massa quis eleifend. Donec eu velit ac urna tempor blandit. Vestibulum ante ipsum primis in faucibus orci luctus et ultrices posuere cubilia curae; Etiam sed lobortis mi. Etiam porttitor, leo sed dictum rutrum, justo massa semper tortor, vel lobortis urna elit a felis. Aliquam odio augue, pellentesque sed ex sed, bibendum pellentesque turpis. Morbi viverra nulla ac ipsum mattis, non auctor tortor condimentum. Vestibulum pretium nec nulla vitae sollicitudin. Integer scelerisque libero id blandit pharetra.
+
+Ut aliquet libero id commodo mattis. Nulla ut ex malesuada, tincidunt nisl in, lacinia nisl. Pellentesque scelerisque semper mauris, nec tincidunt urna bibendum id. Nulla facilisi. Nulla facilisi. Sed id fringilla odio. Fusce tempus egestas mauris nec accumsan. Integer dictum, elit vehicula molestie ultrices, purus sapien luctus enim, nec suscipit felis neque sit amet mi. Nulla sed fermentum orci.
+
+Donec id lorem euismod, posuere leo in, pharetra velit. Nullam sed blandit mauris. Proin vitae congue neque, quis tristique ante. Donec consectetur a velit sed congue. Sed finibus dui luctus, maximus metus et, tempor sapien. Quisque vulputate molestie arcu eu malesuada. Ut consectetur rutrum diam eu viverra. Suspendisse interdum ipsum mattis neque pulvinar posuere. Donec dolor erat, bibendum vitae malesuada ac, hendrerit quis metus. Duis vitae urna orci. Sed lobortis nisl ut tortor eleifend malesuada. Curabitur dapibus ex vitae ante ornare, et aliquet orci bibendum.
+
+Quisque sollicitudin metus turpis, vitae condimentum metus semper id. Duis pharetra facilisis leo vel egestas. Vivamus ut magna justo. Sed quis vehicula turpis, sed dictum augue. Praesent erat tellus, fermentum non vestibulum vitae, commodo in lectus. Integer eu rutrum nibh. Sed pellentesque lacinia mauris, et varius orci laoreet ut. Nulla condimentum ante eros, sed aliquam augue gravida nec. Integer auctor nisl nec mauris vulputate laoreet eget nec lorem. Suspendisse convallis dui a nisi dapibus egestas sit amet non quam. Cras vulputate sapien sit amet lacinia scelerisque. Quisque justo ante, tincidunt in risus ut, dapibus maximus mauris. Vivamus eget lectus nec mi eleifend viverra. Fusce efficitur turpis vel erat auctor aliquam. Nunc volutpat felis massa, sit amet egestas libero mollis non.
+
+In in tempus sapien, sit amet lacinia lacus. Phasellus vehicula sodales cursus. Pellentesque at mollis sapien. Quisque sollicitudin, lorem nec condimentum fringilla, velit arcu vehicula dui, at porttitor turpis leo nec nunc. Mauris elementum eros purus, malesuada consectetur orci sodales eu. Fusce suscipit, turpis vel mattis finibus, leo lacus maximus nibh, ac aliquet nunc enim et lectus. Donec nec nulla est. Duis porta id dolor a vehicula. Mauris accumsan arcu eget metus scelerisque, eget consequat mi rutrum. Aenean placerat tristique feugiat.
+
+Mauris in odio neque. In pretium libero condimentum urna fermentum cursus. Vivamus tincidunt tincidunt volutpat. Aenean sed faucibus dui, tincidunt egestas eros. Nunc velit velit, aliquam eget purus eu, dictum ullamcorper eros. Vestibulum molestie interdum pulvinar. In ac mauris non metus consectetur luctus sed in risus. Sed eget consequat augue. Nulla posuere ligula augue, eu pretium ipsum placerat a. Mauris quis ullamcorper metus, at egestas tellus.
+
+Ut consectetur placerat mauris vel placerat. Nam volutpat sapien ut ornare congue. Vestibulum cursus magna at scelerisque venenatis. Nullam ac lacus quis sapien lobortis ullamcorper eu in libero. Quisque semper vitae urna vitae dictum. Mauris pretium elementum turpis, vel varius odio ullamcorper in. Vestibulum efficitur malesuada est, eu venenatis mauris iaculis sed. Sed suscipit egestas lacus, at porta risus cursus et. Aenean nec augue tempor est elementum bibendum vitae non nisl. Proin molestie porttitor dolor vitae laoreet. Ut sagittis, dui quis pulvinar ultrices, neque tortor auctor nibh, sed ornare mauris mauris vel lacus. Nunc sed ullamcorper lorem. Maecenas facilisis arcu non diam feugiat rhoncus.
+
+Mauris dictum iaculis molestie. Duis viverra pellentesque volutpat. Proin id felis velit. Morbi sed tellus sed ligula molestie ultricies. Interdum et malesuada fames ac ante ipsum primis in faucibus. Pellentesque at lobortis ex. Integer pharetra nibh diam, vehicula scelerisque mi vehicula sit amet. Proin lobortis at augue non bibendum. Morbi porttitor varius tortor, et tristique nibh cursus vitae. Maecenas cursus facilisis tortor, aliquet volutpat ante convallis eget. Nunc odio turpis, pellentesque sed enim sit amet, posuere eleifend magna. Duis ultrices felis ipsum, eu ornare ex iaculis et. Curabitur metus diam, rutrum sit amet rhoncus et, imperdiet sit amet neque. Cras nec dui laoreet magna condimentum fringilla vel quis orci. Morbi sit amet nisi luctus, commodo lacus et, aliquam felis.
+
+Integer pharetra lacinia metus, ut gravida enim varius nec. Proin in risus augue. Aenean vel urna elit. Cras sed erat molestie enim fringilla posuere sed vel lorem. Suspendisse mauris massa, tempus quis tortor ut, placerat egestas ligula. Nam eu massa dictum, fermentum est nec, lacinia felis. Vestibulum ante ipsum primis in faucibus orci luctus et ultrices posuere cubilia curae; Pellentesque tellus quam, placerat commodo tincidunt id, tincidunt ut lectus. Integer ut blandit diam. Duis quis rutrum augue. Nulla ex elit, malesuada vel interdum in, commodo a turpis. Quisque pharetra neque at imperdiet ornare. Cras tincidunt arcu tellus, sit amet ultricies nisi congue nec. Curabitur vel est sed dolor euismod tempus. Praesent at sagittis risus, id viverra neque.
+
+Donec augue leo, pellentesque eu volutpat quis, suscipit in mi. Aenean placerat libero id ornare vestibulum. Maecenas nec faucibus nisi. Curabitur elementum aliquam congue. Maecenas nec lobortis purus. Nam aliquam justo erat, in placerat magna rutrum suscipit. Vestibulum non sem et ipsum lobortis consectetur. Sed sed commodo dui, in feugiat ipsum. Proin mattis gravida lectus, non placerat magna fringilla sit amet.
+
+Integer erat sem, hendrerit id venenatis quis, vestibulum in orci. Praesent sed nisl in sem euismod suscipit. Vivamus in lectus est. Nulla sed neque ut dui posuere interdum sed in mi. Maecenas tincidunt porta ornare. Quisque id sapien aliquet eros consectetur ultrices. In dui turpis, tincidunt ac consectetur vel, scelerisque id arcu. Curabitur sed auctor tellus, sit amet congue ex. Vestibulum accumsan, diam id interdum feugiat, ex turpis fermentum enim, nec tristique ante lacus in sem. Fusce vel ante luctus, mollis ante quis, porttitor leo.
+
+Morbi luctus cursus sapien, accumsan pulvinar urna euismod id. Duis fermentum mi a sapien sollicitudin, ac laoreet magna vestibulum. Integer faucibus diam id dui lacinia, et egestas felis faucibus. Vestibulum efficitur quam at condimentum vulputate. Donec et orci mauris. Cras sit amet dictum nulla, eu vestibulum lacus. Suspendisse rhoncus nibh neque, sit amet semper leo eleifend vel. In tortor tellus, ornare a risus at, malesuada porttitor massa. Lorem ipsum dolor sit amet, consectetur adipiscing elit.
+
+Nam urna nunc, ultrices at nulla sit amet, cursus malesuada lacus. Integer nec sem faucibus, placerat sapien ac, placerat sapien. Cras molestie arcu imperdiet nisi accumsan luctus. In in interdum turpis. Aliquam posuere volutpat pharetra. Aenean pharetra volutpat tempor. Aenean quis turpis ut libero interdum gravida. Maecenas ac scelerisque velit. Morbi non nulla dignissim, maximus lacus sit amet, vestibulum metus. Nunc convallis elit non tincidunt ultricies. Suspendisse aliquet vel lectus a facilisis. Nulla sit amet venenatis odio.
+
+Suspendisse magna nisi, varius luctus ipsum et, imperdiet consequat lacus. Nulla quis congue augue. Proin vehicula mi leo, suscipit dignissim ex egestas eu. Quisque interdum erat quis quam facilisis, in feugiat felis tincidunt. Donec orci odio, porttitor vitae pellentesque eu, rhoncus ac risus. Aliquam faucibus commodo orci. Sed eu arcu sed diam venenatis vulputate a ut sem. Integer nec dapibus dolor. Aenean fringilla malesuada quam, non sagittis libero venenatis ac. Integer blandit neque eget leo auctor lobortis. Donec at tincidunt nunc, a efficitur purus. Vestibulum et orci lobortis, cursus lorem dapibus, malesuada nisi. Nunc in ipsum quis ipsum malesuada lacinia eu non tortor. Mauris ac vehicula tellus.
+
+Nullam ut aliquet ipsum, vitae porttitor sapien. Curabitur eleifend sem id venenatis elementum. Nullam non augue eu arcu posuere finibus sit amet eget lorem. Sed vehicula lectus a justo ultrices, eget pharetra augue eleifend. Pellentesque tempor turpis sed leo viverra tempus. Duis volutpat non urna sit amet dictum. Mauris eu orci pellentesque, rhoncus purus a, fermentum dui. Cras accumsan commodo euismod. In suscipit aliquet ex, a scelerisque tortor ultrices ac. Donec ipsum dui, vulputate non gravida et, vulputate ac dolor. Curabitur et hendrerit arcu, et hendrerit erat. Vivamus suscipit risus eu orci sollicitudin, vel convallis enim ultricies. Cras vehicula consequat risus ac gravida. Duis venenatis nisi vel leo pulvinar bibendum. Mauris elementum et quam eu elementum.
+
+Aliquam erat volutpat. Sed a dapibus diam. Quisque laoreet sit amet tortor sodales interdum. Duis congue venenatis odio, suscipit dignissim justo pretium non. Nunc eu arcu ullamcorper, placerat nisl a, euismod libero. Phasellus molestie mi quis est egestas, ac venenatis justo malesuada. Fusce et nisi ullamcorper, pharetra risus non, venenatis libero. In et sodales ante. Ut quis odio at diam interdum laoreet non nec odio. Morbi rutrum metus nisl, sit amet finibus ipsum accumsan vitae. Praesent fringilla rhoncus erat id ultrices. Aenean ut erat non nisl blandit bibendum ac sit amet lectus. Pellentesque scelerisque dui nec fermentum eleifend. Nulla rhoncus magna non orci sollicitudin fermentum. Nullam consequat orci vitae ullamcorper laoreet. Nam congue tincidunt ligula condimentum ultricies.
+
+Donec nec eros vitae ante commodo scelerisque. Donec felis ex, ornare ut neque a, volutpat blandit enim. Fusce a mi a nunc facilisis semper. Fusce mollis justo eu mi tempor eleifend. Sed ultrices urna quis ipsum cursus, et elementum ante posuere. Praesent viverra vestibulum iaculis. Praesent vel faucibus erat. Integer et diam dapibus, convallis arcu quis, pharetra nulla. Mauris enim arcu, fringilla in tincidunt non, suscipit eu erat. Etiam quis ante euismod, gravida nisl vel, tincidunt libero. Vivamus ac eleifend arcu. Mauris egestas, eros ut porttitor vehicula, erat ligula faucibus elit, ut suscipit massa augue ut est. Aliquam dapibus efficitur purus eu pretium. Donec pulvinar turpis orci. Mauris nisl velit, pharetra sed nisl at, pellentesque convallis felis. Etiam vitae lectus lectus.
+
+Aenean eu ligula interdum, feugiat lacus quis, feugiat tortor. Etiam mattis massa vel augue ullamcorper egestas. Vivamus in orci magna. Vivamus a dictum nisl, vitae ornare justo. Sed libero tellus, dapibus in auctor et, porta vel augue. Nullam scelerisque tellus pretium nibh varius vestibulum. Sed et neque turpis. Proin malesuada nisl ut felis iaculis, ac aliquam lorem euismod. Vestibulum pretium sapien sit amet enim egestas elementum. Cras eget est luctus, mollis sapien ac, porta ex. Praesent venenatis dapibus lacus, ut efficitur lacus fringilla non. Integer eu rutrum magna. Integer iaculis venenatis blandit. Vestibulum euismod vitae leo tincidunt dignissim. Interdum et malesuada fames ac ante ipsum primis in faucibus.
+
+Proin sodales neque dui, at sagittis magna fermentum vel. Cras id metus id sapien cursus rhoncus. In hendrerit augue dictum, gravida augue vel, consectetur lorem. Vivamus sollicitudin pellentesque pulvinar. Donec consectetur sem quis odio scelerisque elementum. Ut luctus enim nec nunc venenatis mattis vitae ac lorem. Nullam aliquam nulla et ornare interdum. Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas. Nullam sollicitudin lacinia tellus et suscipit.
+
+Ut eget orci non est luctus mattis. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras vel magna ligula. Donec eu sem ut odio ullamcorper ornare. Sed blandit, felis pellentesque laoreet cursus, diam sem viverra nunc, in auctor orci diam sit amet enim. Maecenas sit amet commodo turpis, nec tristique lectus. Maecenas dictum leo nec rhoncus faucibus. Vestibulum augue quam, varius ac facilisis vitae, commodo in quam. Aenean suscipit tellus non tincidunt viverra. Integer eu ipsum non nibh bibendum euismod id at erat.
+
+Mauris non malesuada sapien. Pellentesque vitae mi nulla. Curabitur laoreet, sapien et facilisis varius, est est dapibus leo, dapibus auctor erat urna vel enim. In vehicula, nisl ac pharetra finibus, tellus ipsum vestibulum mi, venenatis pulvinar ante sem nec risus. Phasellus porta porttitor lectus, id consectetur justo commodo a. Donec in dui ut tellus ultricies aliquet. Praesent ac mi metus. Integer lobortis purus eu justo lobortis, vel imperdiet ex hendrerit. Aliquam erat volutpat. Proin ut ligula nisl. Sed pretium porttitor varius. Nam iaculis ac orci sed pulvinar. Donec mattis orci non dui vehicula, at lobortis nibh efficitur. Vestibulum varius erat ornare posuere convallis.
+
+Vivamus gravida massa feugiat scelerisque maximus. Nam bibendum facilisis vehicula. Vivamus id lacinia nisl. Sed tempus, orci in tincidunt dignissim, nulla nibh fringilla magna, et rutrum erat sapien ac turpis. Curabitur laoreet id mi in luctus. Vestibulum nec erat et nunc bibendum feugiat vitae nec eros. Morbi vitae convallis neque, vitae faucibus leo. Suspendisse sem justo, vestibulum eget nulla varius, molestie vestibulum nibh. Nullam eleifend arcu enim, et porta felis pretium id. Cras eu sapien quis lacus feugiat venenatis.
+
+Sed diam turpis, interdum vel felis imperdiet, posuere venenatis augue. Maecenas sapien nulla, consectetur vitae mattis in, finibus id lorem. Quisque consequat euismod vestibulum. Maecenas congue velit lorem, tincidunt tristique lorem consectetur quis. Proin vulputate porta convallis. Cras id tincidunt nulla. Proin sit amet turpis imperdiet turpis aliquet feugiat sit amet eu augue. Donec ut consequat neque. Morbi laoreet leo eu augue ullamcorper, ut porttitor lectus pulvinar.
+
+Vivamus vitae nisi eu libero vestibulum sollicitudin vitae in metus. Ut nec massa justo. Phasellus euismod consequat massa id tempor. Vestibulum et imperdiet quam. In ipsum nibh, consectetur quis posuere vitae, laoreet et ante. Maecenas cursus eros vel ante tempor, vel tristique neque tincidunt. Ut eget erat vitae sapien posuere luctus. Donec a finibus erat.
+
+Quisque at ligula sit amet arcu molestie feugiat commodo sit amet nisi. Aenean aliquet hendrerit metus vitae lacinia. Pellentesque pulvinar luctus ipsum non condimentum. In fringilla ac dui a fermentum. Nulla sollicitudin, nisl a fermentum rutrum, eros diam posuere nunc, eget luctus risus eros nec ligula. Suspendisse sit amet ante porta, semper est tempor, pulvinar odio. Cras dictum elit sed orci lacinia aliquet. Ut consectetur, nisl sit amet lacinia finibus, leo eros tempus risus, at lacinia nulla nisi vel tellus. Aliquam at nisl egestas, auctor est a, congue diam. Proin fringilla pellentesque arcu sit amet aliquet.
+
+Morbi a lectus ultricies nibh efficitur scelerisque ac ac urna. Nunc molestie risus vitae ipsum ornare vestibulum. Vivamus molestie tincidunt tempus. Maecenas tristique luctus augue ut lobortis. In risus turpis, condimentum mattis posuere eget, sodales ut lorem. Sed vulputate tempor diam in ullamcorper. Aenean aliquet lectus vitae massa laoreet, nec vehicula odio porta.
+
+Aliquam tristique ut nisi sit amet luctus. Quisque nulla mi, vulputate at lobortis vitae, fermentum at lacus. Curabitur non massa in nunc tempus dignissim. Suspendisse erat velit, molestie non vulputate in, lobortis quis purus. Pellentesque quis placerat nisl. In posuere vestibulum nisl eget egestas. Sed non dui posuere, pharetra est eu, ullamcorper mauris. Pellentesque dictum varius erat at condimentum. Sed nisi enim, pellentesque quis enim molestie, imperdiet volutpat arcu. Aenean commodo finibus vulputate. Fusce ornare scelerisque urna, vitae tempus neque vehicula eu.
+
+Fusce lacinia augue id tristique rutrum. Aenean ut elementum augue. Nulla ut lectus tellus. Pellentesque et libero et mauris facilisis rutrum a pharetra dolor. Vivamus lobortis lacus eu ante suscipit, vel commodo nisi venenatis. Sed gravida gravida congue. Aliquam rutrum dictum orci ac condimentum. Aenean ac ex eu diam dapibus venenatis id ut lacus.
+
+Maecenas non porttitor orci. Donec dapibus rhoncus consectetur. Cras porta sagittis magna, at convallis eros consequat non. Quisque consectetur sem in sagittis sollicitudin. Maecenas id eros porta, tristique sem mollis, sagittis enim. Praesent mollis dapibus commodo. Etiam bibendum lacus nec iaculis eleifend. Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas. Nullam vitae finibus erat. Fusce sollicitudin eleifend elit in hendrerit. Quisque fermentum rhoncus pulvinar. In lobortis libero ac nisi euismod venenatis sit amet sed ipsum. Nam id molestie quam, eu bibendum diam.
+
+Etiam non augue volutpat, fermentum nunc non, sodales lectus. Curabitur elementum euismod ex, quis porttitor erat tempus accumsan. Morbi fringilla nisl nec hendrerit cursus. Suspendisse egestas massa in nisl gravida sollicitudin. Maecenas maximus, tortor sed lacinia consectetur, nisi magna tincidunt lorem, vel maximus dolor sem in eros. Sed a vulputate nunc. Integer egestas, tortor vitae imperdiet cursus, massa enim pellentesque felis, sit amet sollicitudin velit arcu id lorem.
+
+Nullam nec diam convallis, fermentum quam id, pulvinar velit. Pellentesque ultricies semper metus, cursus pulvinar tortor consectetur vel. Fusce suscipit urna sem, vitae ultrices lacus aliquet vel. Pellentesque tempor tristique mi, quis rhoncus lacus fringilla a. Interdum et malesuada fames ac ante ipsum primis in faucibus. Morbi neque risus, malesuada at lacinia non, posuere elementum mauris. Pellentesque eget egestas est, nec congue leo. Nunc faucibus mi id vulputate sodales. Cras ornare eget justo eu blandit. Fusce id magna lorem. Nunc sit amet dolor placerat, ornare metus non, ultricies augue.
+
+Ut sed auctor dui, ullamcorper pretium sapien. Sed ut felis id nunc mollis consectetur et in nunc. Nunc volutpat nec urna nec facilisis. Ut sagittis ipsum nec aliquam interdum. Donec rutrum dolor eget neque euismod vestibulum. Nulla condimentum neque neque, eget ullamcorper risus cursus scelerisque. Sed bibendum luctus dolor eget dignissim. Etiam non nulla enim. Vestibulum eget semper odio. Sed semper vulputate ipsum ac maximus. Nullam sed libero pellentesque quam rhoncus sagittis vitae sed ipsum.
+
+Sed vitae ex vulputate, scelerisque sapien quis, mattis massa. Duis rutrum neque ante, a vestibulum massa congue at. Nam tincidunt ex luctus ultricies laoreet. Duis cursus magna eu diam malesuada ultricies. Cras porttitor sagittis tellus, eget mollis enim molestie eu. Nunc tristique semper massa. Nullam varius velit sit amet velit suscipit, a bibendum odio facilisis. Nunc et arcu bibendum, fermentum odio id, congue lectus. Phasellus malesuada volutpat justo ut sodales. Integer interdum et nibh non blandit. Nam a vulputate tellus.
+
+Quisque auctor commodo nisl, ut semper lectus tincidunt sed. Integer cursus finibus est. Vivamus dui dui, feugiat nec leo eu, vestibulum interdum nunc. Nam massa dolor, tempor sit amet congue et, maximus at elit. In blandit at nibh et porta. Curabitur elementum efficitur elit, vel sagittis tellus eleifend lacinia. Sed tincidunt elit eu purus fermentum finibus. Aenean egestas dignissim tellus vel semper.
+
+Nulla id condimentum lorem. Donec vitae dui quam. Maecenas sapien dui, facilisis sed tellus sit amet, pharetra iaculis ligula. Fusce sagittis, odio sed aliquam feugiat, nunc ipsum ultrices lorem, vel pellentesque nibh orci finibus leo. Proin a urna tincidunt, porttitor sapien ac, fringilla velit. Suspendisse in vehicula risus. Morbi mattis cursus cursus. Nam vel varius nisi, blandit malesuada lacus.
+
+Nullam laoreet nibh quis erat dictum fringilla. Quisque a tortor dolor. Curabitur pulvinar molestie lectus, eget dapibus nisl tristique id. Nullam pulvinar accumsan arcu, euismod auctor nunc dignissim ac. Vivamus pulvinar massa at metus sollicitudin, dictum convallis arcu vestibulum. Suspendisse at leo nec sem sollicitudin luctus sit amet vitae nisi. Duis lobortis risus id odio luctus, sit amet feugiat mauris ullamcorper. Donec iaculis suscipit nunc eu dictum. Quisque ut lobortis elit. Cras eget auctor lacus. Donec mattis vitae nisi a porta. Morbi quis eros sed ante pharetra euismod. Nullam varius bibendum magna a cursus.
+
+Aenean vestibulum leo magna, sit amet varius eros eleifend mollis. Aenean tempor ullamcorper velit vel sagittis. Aenean maximus enim nulla, nec pellentesque elit ullamcorper eget. Duis tincidunt, dolor id euismod rhoncus, orci dolor auctor augue, eu molestie odio tellus nec sem. Donec gravida arcu ac ex ultrices rhoncus. Nulla tincidunt gravida neque id dictum. Sed lectus lectus, rhoncus ac odio vitae, porttitor elementum nunc. Morbi gravida, leo id sollicitudin iaculis, mi elit volutpat eros, quis venenatis massa dui pharetra neque. Cras sit amet dignissim mi. Donec in lectus sed risus congue consequat. Duis ut malesuada metus. Praesent maximus ac tortor eget feugiat. Nulla in nunc eget quam sodales sagittis.
+
+Nam eu porta enim. Fusce pretium elit sapien, a feugiat nibh tempor a. Etiam feugiat dui nec neque malesuada, quis tristique sapien vestibulum. Sed volutpat eget nulla id imperdiet. Morbi sodales tortor ac ligula vulputate tincidunt. Aliquam placerat orci sem, id fringilla orci facilisis eu. Nullam aliquet odio eget ante placerat blandit. Morbi ut justo cursus, ullamcorper purus id, scelerisque neque. Donec a nisi pellentesque, commodo magna efficitur, feugiat neque. Maecenas at quam eleifend, ornare sem non, pretium ante. Pellentesque eget fringilla ligula. Donec massa arcu, viverra auctor sem at, ultricies blandit odio. Proin sed leo quam. Class aptent taciti sociosqu ad litora torquent per conubia nostra, per inceptos himenaeos. Fusce elementum efficitur blandit. Morbi tincidunt porttitor odio nec placerat.
+
+Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas. Donec vel libero pharetra, euismod nulla sit amet, volutpat lorem. Maecenas blandit magna ornare mi imperdiet luctus. Fusce congue risus et enim placerat ornare. Aenean ac magna eget risus rhoncus molestie at et leo. Cras mattis erat lectus, sed dignissim enim pulvinar vel. Donec turpis libero, condimentum sit amet rutrum id, blandit in diam. Praesent tincidunt malesuada lorem, at posuere nisi. Ut rutrum turpis vel mi blandit congue. Aenean viverra metus quis erat hendrerit, nec egestas diam placerat. Praesent vel ipsum enim. Praesent eget sollicitudin dui. Donec semper turpis id magna molestie, sit amet interdum odio lacinia. Curabitur ut mollis metus. Duis luctus leo velit, id accumsan risus sodales non.
+
+Nullam ut arcu sed justo tempus consequat. Donec nisl ante, lacinia ac convallis ac, bibendum sed diam. Duis viverra dolor sed ex convallis, vel facilisis ligula maximus. Pellentesque eu pulvinar nulla. In ante risus, viverra a euismod et, laoreet a dui. In hac habitasse platea dictumst. Nunc ullamcorper tellus non viverra pharetra. Aenean dapibus dolor sit amet dui facilisis placerat. In hac habitasse platea dictumst. Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas. Donec ac efficitur enim, ac placerat dui. Donec vitae vestibulum leo.
+
+Aliquam vestibulum dictum metus, eget commodo ipsum sollicitudin et. Nam volutpat efficitur magna eu vestibulum. Donec dolor purus, aliquet quis orci ut, finibus molestie sapien. Mauris in libero in lorem pretium commodo eu sit amet justo. Integer eu elit sit amet orci cursus sagittis ac a ligula. Curabitur ac eleifend ante. Nulla placerat lacus eu molestie hendrerit.
+
+Proin eu dignissim ante. Fusce lobortis eu ante sed finibus. Vivamus sed dictum turpis. Ut tristique vitae nibh at laoreet. Nullam eget interdum metus, sit amet porttitor nibh. Maecenas dignissim, lacus ac facilisis volutpat, ante nibh vehicula dui, nec facilisis enim turpis vel turpis. Proin risus tortor, vehicula sit amet congue eget, accumsan a magna. Suspendisse potenti. Praesent lacinia mollis feugiat. Donec a nunc ac nibh tincidunt volutpat. Proin nec urna eros. Sed vitae elit fringilla, congue sem non, mattis arcu. Maecenas euismod neque metus, consectetur vestibulum neque rutrum non.
+
+Morbi magna metus, congue nec lacus id, semper mattis augue. Pellentesque vel dolor eu turpis luctus volutpat. Donec consectetur maximus commodo. Quisque erat elit, iaculis vel leo quis, volutpat mollis quam. Sed dui lectus, pretiu

sh/tests/custom-ls/folder1/ls-test

@@ -0,0 +1 @@
+hello

sh/tests/custom-ls_test.sh

@@ -0,0 +1,42 @@
+#!/usr/bin/env bash
+
+# Unofficial Bash Strict Mode
+set -euo pipefail
+IFS='
+'
+
+shopt -s expand_aliases
+
+FILENAME="student/custom-ls.sh"
+script_dirS=$(cd -P "$(dirname "$BASH_SOURCE")" &>/dev/null && pwd)
+
+challenge() {
+
+   	source "$script_dirS"/$FILENAME
+    submitted=$(cd "$1" && custom-ls)
+    unalias custom-ls
+
+	source "$script_dirS"/solutions/custom-ls.sh
+    expected=$(cd "$1" && custom-ls)
+    unalias custom-ls
+
+	diff <(echo "$submitted") <(echo "$expected")
+}
+
+# True if FILE exists and is a regular file
+if [ -f ${FILENAME} ]; then
+    # FILE exists and it's not empty
+    if [ -s ${FILENAME} ]; then
+        if [[ $(cat $FILENAME | grep echo | wc -l) -ne 0 ]]; then
+            echo "echo is not allowed in this exercise!"
+            exit 1
+        fi
+        challenge custom-ls/folder1
+    else
+        echo "The file exist but is empty"
+        exit 1
+    fi
+else
+    echo "File does not exist"
+    exit 1
+fi

sh/tests/details_test.sh

@@ -0,0 +1,18 @@
+#!/usr/bin/env bash
+
+# Unofficial Bash Strict Mode
+set -euo pipefail
+IFS='
+'
+
+script_dirS=$(cd -P "$(dirname "$BASH_SOURCE")" &>/dev/null && pwd)
+challenge() {
+    touch file1.txt
+    submitted=$(bash "$script_dirS"/student/details.sh && ls -l file1.txt | awk '{print $1, $2, $5, $6, $7, $8, $9}')
+    expected=$(bash "$script_dirS"/solutions/details.sh && ls -l file1.txt | awk '{print $1, $2, $5, $6, $7, $8, $9}')
+    diff <(echo "$submitted") <(echo "$expected")
+    stat file1.txt
+}
+
+challenge
+rm file1.txt

sh/tests/dir-info_test.sh

@@ -0,0 +1,44 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+IFS='
+'
+
+FILENAME="student/dir-info.sh"
+script_dirS=$(cd -P "$(dirname "$BASH_SOURCE")" &>/dev/null && pwd)
+
+rm -rf student/dir-info-files
+mkdir student/dir-info-files
+cd student/dir-info-files
+
+directories=(folder1 folder2/aa folder2/ba/aa folder2/aa/ba)
+for dir in "${directories[@]}"; do
+  mkdir -p "$dir"
+done
+
+files=(.abc 34 folder1/ab 4 folder1/ac 2 folder1/az 3 folder1/bz 3 \
+folder1/cz 9 folder1/.hello 21 folder1/za! 3 folder2/ab 7 folder2/ac 0 \
+folder2/alphabet 0 folder2/az 0 folder2/bz 4 folder2/cz 0 folder2/za! 28 \
+folder2/aa/aa 3 folder2/aa/az 4 folder2/aa/.salut 7 folder2/aa/ba/ab 0 \
+folder2/aa/ba/bz 0 folder2/ba/ac 0 folder2/ba/alphabetz 0 folder2/ba/.ola 17 \
+folder2/ba/aa/alphabetz! 0 folder2/ba/aa/.ciao 7 folder2/ba/aa/cz 0 \
+folder2/ba/aa/za! 0)
+
+for ((i=0; i<${#files[@]}; i+=2)) do
+  dd if=/dev/zero of="${files[i]}" bs=1 count="${files[i + 1]}" 2> /dev/null
+done
+
+cd ../
+
+challenge () {
+    submitted=$(bash "$script_dirS"/"$FILENAME" < <(echo "$1"))
+    expected=$(bash "$script_dirS"/solutions/dir-info.sh < <(echo "$1"))
+
+    diff <(echo "$submitted") <(echo "$expected")
+}
+
+challenge "dir-info-files/folder1"
+challenge "dir-info-files/folder2"
+challenge "dir-info-files"
+
+rm -rf dir-info-files

sh/tests/division_test.sh

@@ -0,0 +1,37 @@
+#!/usr/bin/env bash
+
+# Unofficial Bash Strict Mode
+set -euo pipefail
+IFS='
+'
+
+script_dirS=$(cd -P "$(dirname "$BASH_SOURCE")" &>/dev/null && pwd)
+
+challenge() {
+    # Test if test command was used
+    if grep -q "test" "$script_dirS"/student/division.sh
+    then
+        echo "Error: the test command cannot be used in the student script"
+        return
+    fi
+
+    # Test with one or two arguments
+    if [ $# -eq 1 ]
+    then
+    submitted=$(bash "$script_dirS"/student/division.sh $1)
+    expected=$(bash "$script_dirS"/solutions/division.sh $1)
+    else
+    submitted=$(bash "$script_dirS"/student/division.sh $1 $2)
+    expected=$(bash "$script_dirS"/solutions/division.sh $1 $2)
+    fi
+    diff <(echo "$submitted") <(echo "$expected")
+}
+
+challenge "10" "2"
+challenge "4" "2"
+challenge "0.5" "0.5"
+challenge "5" "2"
+challenge "0.5"
+challenge "foo" "bar"
+challenge "1" "0"
+challenge "10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000" "2"

sh/tests/easy-conditions_test.sh

@@ -0,0 +1,15 @@
+#!/usr/bin/env bash
+
+# Unofficial Bash Strict Mode
+set -euo pipefail
+IFS='
+'
+script_dirS=$(cd -P "$(dirname "$BASH_SOURCE")" &>/dev/null && pwd)
+
+for i in $(seq 1 5); do
+    export X=$(shuf -i 1-20 -n 1)
+    export Y=$(shuf -i 1-30 -n 1)
+    submitted=$(bash "$script_dirS"/student/easy-conditions.sh)
+    expected=$(bash "$script_dirS"/solutions/easy-conditions.sh)
+    diff <(echo "$submitted") <(echo "$expected")
+done

sh/tests/easy-perm/example.txt

@@ -0,0 +1,12 @@
+Q. How did the programmer die in the shower?
+A. He read the shampoo bottle instructions: Lather. Rinse. Repeat.
+
+~~~~~~~~~~~~~~~~~~~~~~~~~
+
+How many programmers does it take to change a light bulb?
+None – It’s a hardware problem
+
+~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Why do programmers always mix up Halloween and Christmas?
+Because Oct 31 equals Dec 25.

sh/tests/easy-perm/example2.txt

@@ -0,0 +1,16 @@
+“The best TDD can do, is assure that code does what the programmer thinks it should do. That is pretty good BTW.”
+
+“Simply put, things always had to be in a production-ready state: if you wrote it, you darn well had to be there to get it running!”
+
+“If you think it’s expensive to hire a professional, wait until you hire an amateur.”
+
+“Programming is not a zero-sum game. Teaching something to a fellow programmer doesn’t take it away from you.”
+
+“A phased approach to continuous delivery is not only preferable, it’s infinitely more manageable.”
+
+“So, what do you do?”
+“I’m lean”
+“What?”
+“I’m agile”
+“What?”
+“Fine. I make websites.”

sh/tests/easy-perm_test.sh

@@ -0,0 +1,17 @@
+#!/usr/bin/env bash
+
+# Unofficial Bash Strict Mode
+set -euo pipefail
+IFS='
+'
+script_dirS=$(cd -P "$(dirname "$BASH_SOURCE")" &>/dev/null && pwd)
+
+chmod 303 easy-perm/*
+
+challenge() {
+    submitted=$(bash "$script_dirS"/student/easy-perm.sh && ls -l "$1" | awk '{print $1}')
+    expected=$(bash "$script_dirS"/solutions/easy-perm.sh && ls -l "$1" | awk '{print $1}')
+    diff <(echo "$submitted") <(echo "$expected")
+}
+
+challenge easy-perm/

sh/tests/file-checker_test.sh

@@ -0,0 +1,38 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+IFS='
+'
+script_dirS=$(cd -P "$(dirname "$BASH_SOURCE")" &>/dev/null && pwd)
+
+# check that test command was not used
+if grep -q "test" "$script_dirS"/student/file-checker.sh
+then
+    echo "The 'test' command is not allowed in this exercise"
+    exit 1
+fi
+
+if test ! -e file-checker; then
+    mkdir file-checker
+    cd file-checker
+    touch readable-and-writable readable-only readable-and-executable readable-writable-executable
+    chmod -x "$script_dirS/file-checker/readable-and-writable"
+    chmod -xw "$script_dirS/file-checker/readable-only"
+    chmod -w "$script_dirS/file-checker/readable-and-executable"
+    chmod +x "$script_dirS/file-checker/readable-and-executable"
+    chmod +x "$script_dirS/file-checker/readable-writable-executable"
+    cd ..
+fi
+
+challenge() {
+    submitted=$(bash "$script_dirS"/student/file-checker.sh "$1")
+    expected=$(bash "$script_dirS"/solutions/file-checker.sh "$1")
+
+    diff <(echo "$submitted") <(echo "$expected")
+}
+
+challenge "$script_dirS/file-checker/readable-only"
+challenge "$script_dirS/file-checker/readable-and-writable"
+challenge "$script_dirS/file-checker/readable-and-executable"
+challenge "$script_dirS/file-checker/readable-writable-executable"
+rm -rf file-checker

sh/tests/file-details_test.sh

@@ -0,0 +1,17 @@
+#!/usr/bin/env bash
+
+# Unofficial Bash Strict Mode
+set -euo pipefail
+IFS='
+'
+
+script_dirS=$(cd -P "$(dirname "$BASH_SOURCE")" &>/dev/null && pwd)
+
+challenge() {
+    submitted=$(cd "$1" && bash "$script_dirS"/student/file-details.sh)
+    expected=$(cd "$1" && bash "$script_dirS"/solutions/file-details.sh)
+
+    diff <(echo "$submitted") <(echo "$expected")
+}
+
+challenge hard-perm

sh/tests/grades_test.sh

@@ -0,0 +1,88 @@
+#!/usr/bin/env bash
+
+IFS='
+'
+script_dirS=$(cd -P "$(dirname "$BASH_SOURCE")" &>/dev/null && pwd)
+
+challenge() {
+
+    input="${@: -1}"
+    args=${@:1:$#-1}
+
+    submitted=$(
+        bash -c ""$script_dirS"/student/grades.sh $args" <<EOF
+$input
+EOF
+    )
+    expected=$(
+        bash -c ""$script_dirS"/solutions/grades.sh $args" <<EOF
+$input
+EOF
+    )
+    diff <(echo "$submitted") <(echo "$expected")
+
+    if [ $? != 0 ]; then
+        exit 1
+    fi
+}
+
+challenge 1 "Student1
+90
+"
+challenge 1 "Student2
+70
+"
+challenge 1 "Student3
+50
+"
+challenge 1 "Student4
+92
+"
+challenge 1 "Student5
+75
+"
+challenge 1 "Student6
+55
+"
+challenge 1 "Student7
+25
+"
+challenge 2 "Student1
+0
+Alice
+100
+"
+challenge 3 "Bob
+90
+Alice
+75
+Eve
+55
+"
+challenge 5 "Bob
+90
+Alice
+75
+Eve
+55
+john
+49
+Eric
+65
+"
+challenge 3 "Bob
+90
+Alice
+150
+Eve
+55
+"
+challenge 1 "Student1
+not_good
+"
+challenge 1 "Student1
+-75
+"
+challenge 1 1 "Louis
+20
+"

sh/tests/greatest-of-all_test.sh

@@ -0,0 +1,29 @@
+#!/usr/bin/env bash
+
+IFS='
+'
+script_dirS=$(cd -P "$(dirname "$BASH_SOURCE")" &>/dev/null && pwd)
+
+challenge() {
+
+    submitted=$(echo -e "0\n3\n2\n5\n7\n1\n4\n9\n8\n6\n10" | bash -c ""$script_dirS"/student/greatest-of-all.sh")
+    expected=$(echo -e "0\n3\n2\n5\n7\n1\n4\n9\n8\n6\n10" | bash -c ""$script_dirS"/solutions/greatest-of-all.sh")
+    diff <(echo "$submitted") <(echo "$expected")
+    submitted=$(echo -e "26\n85\n21\n94\n68\n60\n99\n31\n10\n98\n" | bash -c ""$script_dirS"/student/greatest-of-all.sh")
+    expected=$(echo -e "26\n85\n21\n94\n68\n60\n99\n31\n10\n98\n" | bash -c ""$script_dirS"/solutions/greatest-of-all.sh")
+    diff <(echo "$submitted") <(echo "$expected")
+    submitted=$(echo -e "152\n485\n569\n611\n871\n551\n984\n895\n285\n989\n" | bash -c ""$script_dirS"/student/greatest-of-all.sh")
+    expected=$(echo -e "152\n485\n569\n611\n871\n551\n984\n895\n285\n989\n" | bash -c ""$script_dirS"/solutions/greatest-of-all.sh")
+    diff <(echo "$submitted") <(echo "$expected")
+    submitted=$(echo -e "152\n10001\n569" | bash -c ""$script_dirS"/student/greatest-of-all.sh")
+    expected=$(echo -e "152\n10001\n569" | bash -c ""$script_dirS"/solutions/greatest-of-all.sh")
+    diff <(echo "$submitted") <(echo "$expected")
+    submitted=$(echo -e "152\n485\nalpha\n" | bash -c ""$script_dirS"/student/greatest-of-all.sh")
+    expected=$(echo -e "152\n485\nalpha\n" | bash -c ""$script_dirS"/solutions/greatest-of-all.sh")
+    diff <(echo "$submitted") <(echo "$expected")
+    submitted=$(echo -e "152\n485\n-45\n45\n" | bash -c ""$script_dirS"/student/greatest-of-all.sh")
+    expected=$(echo -e "152\n485\n-45\n45" | bash -c ""$script_dirS"/solutions/greatest-of-all.sh")
+    diff <(echo "$submitted") <(echo "$expected")
+}
+
+challenge

sh/tests/hard-conditions_test.sh

@@ -0,0 +1,19 @@
+#!/usr/bin/env bash
+
+# Unofficial Bash Strict Mode
+set -euo pipefail
+IFS='
+'
+script_dirS=$(cd -P "$(dirname "$BASH_SOURCE")" &>/dev/null && pwd)
+
+echo "echo hello word" >test-hard-conditions.sh
+echo "echo hello word" >non-ex
+chmod +x test-hard-conditions.sh
+
+submitted=$(bash "$script_dirS"/student/hard-conditions.sh test-hard-conditions.sh)
+expected=$(bash "$script_dirS"/solutions/hard-conditions.sh test-hard-conditions.sh)
+diff <(echo "$submitted") <(echo "$expected")
+
+submitted=$(bash "$script_dirS"/student/hard-conditions.sh non-ex)
+expected=$(bash "$script_dirS"/solutions/hard-conditions.sh non-ex)
+diff <(echo "$submitted") <(echo "$expected")

sh/tests/hard-perm_test.sh

@@ -0,0 +1,17 @@
+#!/usr/bin/env bash
+
+# Unofficial Bash Strict Mode
+set -euo pipefail
+IFS='
+'
+script_dirS=$(cd -P "$(dirname "$BASH_SOURCE")" &>/dev/null && pwd)
+
+chmod 776 hard-perm/*
+
+challenge() {
+    submitted=$(bash "$script_dirS"/student/hard-perm.sh && ls -l "$1" | awk '{print $1}')
+    expected=$(bash "$script_dirS"/solutions/hard-perm.sh && ls -l "$1" | awk '{print $1}')
+    diff <(echo "$submitted") <(echo "$expected")
+}
+
+challenge hard-perm/

sh/tests/in-back-ground_test.sh

@@ -0,0 +1,40 @@
+#!/usr/bin/env bash
+
+# Unofficial Bash Strict Mode
+set -euo pipefail
+IFS='
+'
+
+FILENAME="student/in-back-ground.sh"
+script_dirS=$(cd -P "$(dirname "$BASH_SOURCE")" &>/dev/null && pwd)
+
+echo "- Australia is wider than the moon. The moon sits at 3400km in diameter, while Australia's diameter from east to west is almost 4000km." >facts
+
+challenge() {
+    submitted=$(cd "$1" && bash "$script_dirS"/$FILENAME)
+    std_out=$(cat output.txt)
+    expected=$(cd "$1" && bash "$script_dirS"/solutions/in-back-ground.sh)
+    sol_out=$(cat output.txt)
+    diff <(echo "$submitted") <(echo "$expected")
+    diff <(echo "$std_out") <(echo "$sol_out")
+}
+
+challenge_no_output() {
+    if [[ -f output.txt ]]; then
+        exit 1
+    fi
+    submitted=$(cd "$1" && bash "$script_dirS"/$FILENAME)
+    expected=$(cd "$1" && bash "$script_dirS"/solutions/in-back-ground.sh)
+    diff <(echo "$submitted") <(echo "$expected")
+}
+
+if [[ $(cat $FILENAME | grep 'nohup' | wc -l) -lt 1 ]]; then
+    echo "The file does not contain the required commands"
+    exit 1
+fi
+
+challenge .
+rm output.txt
+
+echo "The sun is a star!" >facts
+challenge_no_output .

sh/tests/in-the-dark_test.sh

@@ -0,0 +1,29 @@
+#!/usr/bin/env bash
+
+# Unofficial Bash Strict Mode
+set -euo pipefail
+IFS='
+'
+
+FILENAME="student/in-the-dark.sh"
+script_dirS=$(cd -P "$(dirname "$BASH_SOURCE")" &>/dev/null && pwd)
+
+challenge() {
+    submitted=$(cd "$1" && bash "$script_dirS"/$FILENAME)
+    expected=$(cd "$1" && bash "$script_dirS"/solutions/in-the-dark.sh)
+    diff <(echo "$submitted") <(echo "$expected")
+}
+
+# True if FILE exists and is a regular file
+if [ -f ${FILENAME} ]; then
+    # FILE exists and it's not empty
+    if [ -s ${FILENAME} ]; then
+        challenge .
+    else
+        echo "The file exist but is empty"
+        exit 1
+    fi
+else
+    echo "File does not exist"
+    exit 1
+fi

sh/tests/input-redirection_test.sh

@@ -0,0 +1,20 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+IFS='
+'
+
+script_dirS=$(cd -P "$(dirname "$BASH_SOURCE")" &>/dev/null && pwd)
+
+challenge() {
+    $(bash "$script_dirS"/student/input-redirection.sh)
+    submitted=$(bash "$script_dirS"/show-info.sh)
+    rm show-info.sh
+    $(bash "$script_dirS"/solutions/input-redirection.sh)
+    expected=$(bash "$script_dirS"/show-info.sh)
+    rm show-info.sh
+
+    diff <(echo "$submitted") <(echo "$expected")
+}
+
+challenge

sh/tests/joker-num_test.sh

@@ -0,0 +1,69 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+IFS='
+'
+script_dirS=$(cd -P "$(dirname "$BASH_SOURCE")" &>/dev/null && pwd)
+
+challenge() {
+    args=${@:1:$#-1}
+    input="${@: -1}"
+
+    submitted=$(
+        ./student/joker-num.sh $args <<EOF
+$input
+EOF
+    )
+    expected=$(
+        ./solutions/joker-num.sh $args <<EOF
+$input
+EOF
+    )
+    diff <(echo "$submitted") <(echo "$expected")
+}
+
+# Good input, win
+challenge 50 "1
+100
+49
+51
+50
+"
+
+# Good input, lose
+challenge 50 "10
+20
+30
+40
+41
+42
+"
+
+# Bad arguments
+challenge "10"
+
+# Bad arguments
+challenge 0 "10"
+
+# Bad arguments
+challenge 101 "10"
+
+# Bad arguments
+challenge -20 "10"
+
+# Bad arguments
+challenge aa "10"
+
+# Handle bad input
+challenge 78 "10
+aa
+  
+
+3000
+-10
+0
+0
+40
+80
+79
+78"

sh/tests/largest_test.sh

@@ -0,0 +1,49 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+IFS='
+'
+
+FILENAME="student/largest.sh"
+script_dirS=$(cd -P "$(dirname "$BASH_SOURCE")" &>/dev/null && pwd)
+
+rm -rf largest-dir
+mkdir largest-dir
+cd largest-dir
+
+directories=(folder1 folder2/aa folder2/ba/aa folder2/aa/ba)
+for dir in "${directories[@]}"; do
+  mkdir -p "$dir"
+done
+
+files=(.abc 34 folder1/ab 4 folder1/ac 2 folder1/az 3 folder1/bz 3 \
+folder1/cz 9 folder1/.hello 21 folder1/za! 3 folder2/ab 7 folder2/ac 0 \
+folder2/alphabet 0 folder2/az 0 folder2/bz 4 folder2/cz 0 folder2/za! 28 \
+folder2/aa/aa 3 folder2/aa/az 4 folder2/aa/.salut 7 folder2/aa/ba/ab 0 \
+folder2/aa/ba/bz 0 folder2/ba/ac 0 folder2/ba/alphabetz 0 folder2/ba/.ola 17 \
+folder2/ba/aa/alphabetz! 0 folder2/ba/aa/.ciao 7 folder2/ba/aa/cz 0 \
+folder2/ba/aa/za! 0)
+
+for ((i=0; i<${#files[@]}; i+=2)) do
+  dd if=/dev/zero of="${files[i]}" bs=1 count="${files[i + 1]}" 2> /dev/null
+done
+
+cd ..
+
+challenge () {
+    submitted=$(cd "$1" && bash "$script_dirS"/"$FILENAME")
+    expected=$(cd "$1" && bash "$script_dirS"/solutions/largest.sh)
+
+    diff <(echo "$submitted") <(echo "$expected")
+}
+
+if [ $(cat "$script_dirS"/"$FILENAME" | grep echo) ]; then
+    echo "echo is not allowed in this exercise!" 
+    exit 1
+fi
+
+challenge largest-dir/folder1
+challenge largest-dir/folder2
+challenge largest-dir
+
+rm -rf largest-dir

sh/tests/left/facts

@@ -0,0 +1,21 @@
+10 random facts
+
+- Avocados are a fruit, not a vegetable. They're technically considered a single-seeded berry, believe it or not.
+
+- The Eiffel Tower can be 15 cm taller during the summer, due to thermal expansion meaning the iron heats up, the particles gain kinetic energy and take up more space.
+
+- Trypophobia is the fear of closely-packed holes. Or more specifically, "an aversion to the sight of irregular patterns or clusters of small holes or bumps." No crumpets for them, then.
+
+- Australia is wider than the moon. The moon sits at 3400km in diameter, while Australia’s diameter from east to west is almost 4000km.
+
+- 'Mellifluous' is a sound that is pleasingly smooth and musical to hear.
+
+- The Spice Girls were originally a band called Touch. "When we first started [with the name Touch], we were pretty bland," Mel C told The Guardian in 2018. "We felt like we had to fit into a mould."
+
+- Human teeth are the only part of the body that cannot heal themselves. Teeth are coated in enamel which is not a living tissue.
+
+- It's illegal to own just one guinea pig in Switzerland. It's considered animal abuse because they're social beings and get lonely.
+
+- The Ancient Romans used to drop a piece of toast into their wine for good health - hence why we 'raise a toast'.
+
+- The heart of a shrimp is located in its head. They also have an open circulatory system, which means they have no arteries and their organs float directly in blood.

sh/tests/left_test.sh

@@ -0,0 +1,24 @@
+#!/usr/bin/env bash
+
+# Unofficial Bash Strict Mode
+set -euo pipefail
+IFS='
+'
+script_dirS=$(cd -P "$(dirname "$BASH_SOURCE")" &>/dev/null && pwd)
+
+FILENAME="../student/left.sh"
+cd left
+
+if [[ $(cat $FILENAME | grep echo | wc -l) -ne 0 ]]; then
+    echo "echo is not allowed in this exercise!"
+    exit 1
+fi
+
+if [[ $(cat $FILENAME | grep '<' | wc -l) -lt 1 ]]; then
+    echo "The file does not contain the required redirection"
+    exit 1
+fi
+
+submitted=$(bash $FILENAME)
+expected=$(bash ../solutions/left.sh)
+diff <(echo "$submitted") <(echo "$expected")

sh/tests/plus_test.sh

@@ -0,0 +1,24 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+IFS='
+'
+
+script_dirS=$(cd -P "$(dirname "$BASH_SOURCE")" &>/dev/null && pwd)
+
+challenge() {
+    submitted=$(bash "$script_dirS"/student/plus.sh $1 $2)
+    expected=$(bash "$script_dirS"/solutions/plus.sh $1 $2)
+
+    diff <(echo "$submitted") <(echo "$expected")
+}
+
+challenge "1" "2"
+challenge "4" "2"
+challenge "3" "-3"
+challenge "0" "0"
+challenge "2" "-3"
+challenge "-4" "1"
+challenge "-2" "-1"
+challenge "10" "-5"
+challenge "-11" "20"

sh/tests/remake_test.sh

@@ -0,0 +1,22 @@
+#!/usr/bin/env bash
+
+IFS='
+'
+
+challenge () {
+    if [[ $# -eq 1 && -d "$1" ]]; then
+        submitted=$(bash student/remake.sh "$1")
+        expected=$(bash solutions/remake.sh "$1"-expected)
+        diff <(echo $submitted) <(echo $expected)
+        diff <(ls -ltr $1) <(ls -ltr $1-expected)
+    else
+        diff <(bash student/remake.sh "$@") <(bash solutions/remake.sh "$@")
+    fi
+}
+
+mkdir remake remake-expected
+challenge remake 
+challenge
+challenge not-there
+rm -rf remake remake-expected
+

sh/tests/right_test.sh

@@ -0,0 +1,28 @@
+#!/usr/bin/env bash
+
+# Unofficial Bash Strict Mode
+set -euo pipefail
+IFS='
+'
+
+FILENAME="student/right.sh"
+script_dirS=$(cd -P "$(dirname "$BASH_SOURCE")" &>/dev/null && pwd)
+
+if test ! -e right; then
+    mkdir right
+    cd right
+    touch sample1.txt sample2 sample3.txt sample4
+    cd ..
+fi
+
+challenge() {
+    $(cd "$1" && bash "$script_dirS"/$FILENAME)
+    submitted=$(cat $1/filtered_files.txt)
+    rm $1"/filtered_files.txt"
+    $(cd "$1" && bash "$script_dirS"/solutions/right.sh)
+    expected=$(cat $1/filtered_files.txt)
+    diff <(echo "$submitted") <(echo "$expected")
+}
+
+challenge right
+rm -r right

sh/tests/set-env-vars_test.sh

@@ -0,0 +1,21 @@
+#!/usr/bin/env bash
+
+# Unofficial Bash Strict Mode
+set -euo pipefail
+IFS='
+'
+
+FILENAME="student/set-env-vars.sh"
+
+# echo not allowed
+if [ -s ${FILENAME} ]; then
+    if [[ $(cat $FILENAME | grep echo | wc -l) -ne 0 ]]; then
+        echo "echo is not allowed in this exercise!"
+        exit 1
+    fi
+fi
+
+submitted=$(bash $FILENAME)
+expected=$(bash solutions/set-env-vars.sh)
+
+diff <(echo "$submitted") <(echo "$expected")

sh/tests/set-internal-vars_test.sh

@@ -0,0 +1,11 @@
+#!/usr/bin/env bash
+
+# Unofficial Bash Strict Mode
+set -euo pipefail
+IFS='
+'
+
+submitted=$(bash student/set-internal-vars.sh)
+expected=$(bash solutions/set-internal-vars.sh)
+
+diff <(echo "$submitted") <(echo "$expected")

sh/tests/solutions/append-output.sh

@@ -0,0 +1,9 @@
+# added this here to make the test cleaner
+cat <<EOF >results.txt
+"In the End" - Linkin Park
+"Crawling" - Linkin Park
+"Elevation" - U2
+"Get the Party Started" - Pink
+"Lady Marmalade" - Christina Aguilera, Lil' Kim, Mya, Pink
+EOF
+cat songs.txt | grep "\- J" >>results.txt

sh/tests/solutions/array-selector.sh

@@ -0,0 +1,14 @@
+#!/usr/bin/env bash 
+
+IFS='
+'
+
+COLORS=('red' 'blue' 'green' 'white' 'black')
+if [[ ! $1 =~ ^[0-9]+$ ]] || [[ $1 -le 0 ]] || [[ $1 -gt ${#COLORS[@]} ]]; then
+    echo 'Error'
+else
+	POS=$(($1 - 1))
+	echo ${COLORS[$POS]}
+fi
+
+

sh/tests/solutions/auto-exec-bin.sh

@@ -0,0 +1,3 @@
+#!/usr/bin/env bash
+
+export PATH=$PATH:~/myBins

sh/tests/solutions/bin-status.sh

@@ -0,0 +1,3 @@
+#!/usr/bin/env bash
+
+echo $?

sh/tests/solutions/burial.sh

@@ -0,0 +1,2 @@
+sleep 2 &
+jobs -l | awk '{print $1, $3, $4, $5, $6}'

sh/tests/solutions/calculator.sh

@@ -0,0 +1,66 @@
+#!/usr/bin/env bash
+
+# Unofficial Bash Strict Mode
+set -euo pipefail
+IFS='
+'
+
+number='^-?[0-9]+$'
+
+do_add () {
+    echo $(($1 + $2))
+}
+
+do_sub () {
+    echo $(($1 - $2))
+}
+
+do_mult () {
+    echo $(($1 * $2))
+}
+
+do_divide () {
+    echo $(($1 / $2))
+}
+
+
+if [ $# != 3 ]
+then
+    >&2 echo "Error: expect 3 arguments"
+    exit 1
+elif ! [[ $1 =~ $number && $3 =~ $number ]]
+then
+    >&2 echo "Error: invalid number"
+    exit 4
+else
+    case $2 in
+
+        "+")
+            echo $(do_add $1 $3)
+            ;;
+        
+        "-")
+            echo $(do_sub $1 $3)
+            ;;
+        
+        "*")
+            echo $(do_mult $1 $3)
+            ;;
+        
+        "/")
+            if [ $3 == 0 ]
+            then
+                >&2 echo "Error: division by 0"
+                exit 2
+            fi
+            echo $(do_divide $1 $3)
+            ;;
+        
+        *)
+            >&2 echo "Error: invalid operator"
+            exit 3
+            ;;
+
+    esac
+
+fi

sh/tests/solutions/check-user.sh

@@ -0,0 +1,26 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+IFS='
+'
+
+if [ $# != 2 ]
+then
+    >&2 echo "Error: expect 2 arguments"
+    exit 1
+elif [[ $1 == "-e" ]]
+then
+    user_info=$(getent passwd $2)
+    if [[ $user_info == "" ]]
+    then
+        echo no
+    else
+        echo yes
+    fi
+elif [[ $1 == "-i" ]]
+then
+    getent passwd $2
+else
+    >&2 echo "Error: unknown flag"
+    exit 1
+fi

sh/tests/solutions/comparator.sh

@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+
+if [ "$#" -ne 2 ]; then
+    echo "Error: The script only works with two arguments!"
+elif ! [[ $1 =~ ^-?[0-9]*\.?[0-9]+$ ]] || ! [[ $2 =~ ^-?[0-9]*\.?[0-9]+$ ]]; then
+    echo "Error: Only two numeric arguments are acceptable!"
+elif [ "$1" -gt "$2" ]; then
+    echo "$1 > $2"
+elif [ "$1" -lt "$2" ]; then
+    echo "$1 < $2"
+else
+    echo "$1 = $2"
+fi

sh/tests/solutions/custom-ls.sh

@@ -0,0 +1,3 @@
+#!/usr/bin/env bash
+
+alias custom-ls="ls -lgSsa"

sh/tests/solutions/details.sh

@@ -0,0 +1,3 @@
+truncate -s 1000 file1.txt
+chmod 600 file1.txt
+touch -amt 2201010000 file1.txt

sh/tests/solutions/dir-info.sh

@@ -0,0 +1,64 @@
+#!/bin/bash
+
+echo "Enter directory path: "
+read dir_path
+
+# Calculate the total size of all the files
+total_size=0
+num_files=0
+for file in $(find $dir_path -type f)
+do
+  file_size=$(stat -c%s "$file")
+  total_size=$((total_size + file_size))
+  num_files=$((num_files + 1))
+done
+
+# Calculate the average size of all the files
+average_size=$((total_size / num_files))
+
+# Find the largest and smallest files
+largest_file=""
+largest_file_size=0
+smallest_file=""
+smallest_file_size=99999999999
+for file in $(find $dir_path -type f)
+do
+  file_size=$(stat -c%s "$file")
+  if [ $file_size -gt $largest_file_size ]
+  then
+    largest_file=$file
+    largest_file_size=$file_size
+  fi
+  if [ $file_size -lt $smallest_file_size ]
+  then
+    smallest_file=$file
+    smallest_file_size=$file_size
+  fi
+done
+
+# Print the results
+echo "Largest file: $largest_file ($largest_file_size bytes)"
+echo "Smallest file: $smallest_file ($smallest_file_size bytes)"
+echo "Average file size: $average_size bytes"
+
+# Print the files larger or equal than average size
+echo "Files larger or equal to average size ($average_size bytes):"
+for file in $(find $dir_path -type f)
+do
+  file_size=$(stat -c%s "$file")
+  if [ $file_size -ge $average_size ]
+  then
+    echo "$file $file_size"
+  fi
+done
+
+# Print the files smaller than average size
+echo "Files smaller than average size ($average_size bytes):"
+for file in $(find $dir_path -type f)
+do
+  file_size=$(stat -c%s "$file")
+  if [ $file_size -lt $average_size ]
+  then
+    echo "$file $file_size"
+  fi
+done

sh/tests/solutions/division.sh

@@ -0,0 +1,24 @@
+#!/usr/bin/env bash
+
+# Check if two arguments were provided
+if [ $# -ne 2 ]
+then
+    echo "Error: two numbers must be provided"
+
+# # Check if the arguments are numeric
+elif ! [[ $1 =~ ^-?[0-9]*\.?[0-9]+$ ]] || ! [[ $2 =~ ^-?[0-9]*\.?[0-9]+$ ]]
+then
+    echo "Error: both arguments must be numeric"
+
+# Check if the second argument is not 0
+elif [ $(echo "$2 == 0" | bc) -eq 1 ]
+then
+    echo "Error: division by zero is not allowed"
+
+# Divide the first argument by the second using bc
+else 
+result=$(echo "$1 / $2" | bc )
+
+# Output the result
+echo $result
+fi

sh/tests/solutions/easy-conditions.sh

@@ -0,0 +1 @@
+[ "$X" -gt "$Y" ] && echo "true" || echo "false"

sh/tests/solutions/easy-perm.sh

@@ -0,0 +1 @@
+chmod 644 easy-perm/example.txt && chmod 746 easy-perm/example2.txt

sh/tests/solutions/file-checker.sh

@@ -0,0 +1,38 @@
+#!/usr/bin/env bash
+
+# Check if the script was given an argument
+if [ $# -ne 1 ]
+then
+    echo "Error: a file must be provided as an argument"
+    exit 1
+fi
+
+# Check if file exists
+if [ ! -e "$1" ]
+then
+    echo "File does not exist"
+else
+    echo "File exists"
+fi
+
+# Check file's permissions
+if [ -r "$1" ]
+then
+    echo "File is readable"
+else
+    echo "File is not readable"
+fi
+
+if [ -w "$1" ]
+then
+    echo "File is writable"
+else
+    echo "File is not writable"
+fi
+
+if [ -x "$1" ]
+then
+    echo "File is executable"
+else
+    echo "File is not executable"
+fi

sh/tests/solutions/file-details.sh

@@ -0,0 +1 @@
+TZ=utc ls -l --time-style='+%F %R' | sed 1d | awk '{print $1, $6, $7, $8, $9, $10}'

sh/tests/solutions/grades.sh

@@ -0,0 +1,34 @@
+#!/usr/bin/env bash
+
+num_students=$1
+declare -a students
+
+if [ $# -ne 1 ]; then
+    echo "Error: expect 1 argument only!"
+    exit 1
+fi
+
+for ((i = 0; i < num_students; i++)); do
+    read -p "Student Name #$((i + 1)): " name
+    read -p "Student Grade #$((i + 1)): " grade
+    students+=("$name $grade")
+
+    if [ $(expr "$grade" \> 100) -eq 1 ] || ! [[ "$grade" =~ ^[0-9]+$ ]]; then
+        echo "Error: The grade '$grade' is not a valid input. Only numerical grades between 0 and 100 are accepted."
+        exit 1
+    fi
+done
+
+for student in "${students[@]}"; do
+    name=$(echo $student | awk '{print $1}')
+    grade=$(echo $student | awk '{print $2}')
+    if [ "$grade" -ge 90 ]; then
+        echo "$name: You did an excellent job!"
+    elif [ "$grade" -ge 70 ]; then
+        echo "$name: You did a good job!"
+    elif [ "$grade" -ge 50 ]; then
+        echo "$name: You need a bit more effort!"
+    else
+        echo "$name: You had a poor performance!"
+    fi
+done

sh/tests/solutions/greatest-of-all.sh

@@ -0,0 +1,21 @@
+#!/usr/bin/env bash
+
+largest=0
+
+for i in {1..10}; do
+
+    read -p "Enter a number: " num
+    if ! [[ $num =~ ^[0-9]+$ ]]; then
+        echo "ERROR: Invalid input only positive numerical characters are allowed"
+        exit 1
+    elif [ $num -gt $largest ]; then
+        if [ $num -gt 10000 ]; then
+            echo "ERROR: The number entered is too large"
+            exit 1
+        else
+            largest=$num
+        fi
+    fi
+done
+
+echo "The largest number is: $largest"

sh/tests/solutions/hard-conditions.sh

@@ -0,0 +1 @@
+[ -x "$1" ] && echo "File is executable" || echo "File is not an executable or does not exist"

sh/tests/solutions/hard-perm.sh

@@ -0,0 +1 @@
+chmod 401 hard-perm/0 hard-perm/A && chmod 402 hard-perm/1 hard-perm/9 && chmod 604 hard-perm/2 hard-perm/8 && chmod 777 hard-perm/3 && chmod 510 hard-perm/4 hard-perm/7 && chmod 460 hard-perm/5 hard-perm/6

sh/tests/solutions/in-back-ground.sh

@@ -0,0 +1 @@
+nohup cat facts | grep "moon" && echo "The moon fact was found!" >output.txt &

sh/tests/solutions/in-the-dark.sh

@@ -0,0 +1,2 @@
+ls -R | grep "\.txt$" && echo "Search complete" >new &
+jobs

sh/tests/solutions/input-redirection.sh

@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+
+# Unofficial Bash Strict Mode
+set -euo pipefail
+IFS='
+'
+
+echo "cat -e <<EOF
+The current directory is: $PWD
+The default paths are: $PATH
+The current user is: $USERNAME
+EOF
+" > show-info.sh

sh/tests/solutions/joker-num.sh

@@ -0,0 +1,49 @@
+#!/bin/bash
+
+if [[ $# != 1
+    || -z "$1"
+    || ! "$1" =~ ^[0-9]+$
+    || "$1" -lt 1
+    || "$1" -gt 100 ]]
+then
+    echo "Error: wrong argument"
+    exit 1
+fi
+
+number=$1
+
+# Start the for loop for player two
+for (( tries_left=5 ; tries_left > 0; tries_left-- ))
+do
+    echo "Enter your guess ($tries_left tries left):"
+
+    read guess
+    if [[ $? < 0 ]]
+    then
+        exit 1
+    fi
+
+    if [[ -z "$guess"
+        || ! "$guess" =~ ^[0-9]+$
+        || "$guess" -lt 1
+        || "$guess" -gt 100 ]]
+    then
+        tries_left=$tries_left+1
+        continue
+    fi
+
+    if [[ "$guess" -eq "$number" ]]
+    then
+        echo "Congratulations, you found the number in $((5-$tries_left+1)) moves!"
+        exit
+    fi
+
+    if [[ "$guess" -lt "$number" ]]
+    then
+        echo "Go up"
+    else
+        echo "Go down"
+    fi
+done
+
+echo "You lost, the number was $number"

sh/tests/solutions/largest.sh

@@ -0,0 +1,3 @@
+#!/usr/bin/env bash 
+
+find . -type f -exec ls -lha {} \; | sort -hrk5 | head -7 | awk '{printf("%5s | ", $5); print $NF}'

sh/tests/solutions/left.sh

@@ -0,0 +1 @@
+wc -l <facts

sh/tests/solutions/plus.sh

@@ -0,0 +1,7 @@
+#!/usr/bin/env bash
+
+# Add the two numbers
+result=$(expr $1 + $2)
+
+# Output the result
+echo $result

sh/tests/solutions/remake.sh

@@ -0,0 +1,25 @@
+#!/usr/bin/env bash
+
+IFS='
+'
+
+if [[ $# -eq 1 && -d "$1" ]]; then
+    cd $1
+    touch -t 01010001 ciao
+    chmod 442 ciao
+    mkdir mamma
+    touch -t 01020001 mamma
+    chmod 777 mamma
+    touch -t 01030001 guarda
+    chmod 400 guarda
+    touch -t 01040001 come
+    chmod 642 come
+    mkdir mi
+    touch -t 01050001 mi
+    chmod 452 mi
+    touch -t 01060001 diverto
+    chmod 421 diverto
+else
+    echo Error
+    exit 1
+fi

sh/tests/solutions/right.sh

@@ -0,0 +1 @@
+ls | grep -v "\.txt" >filtered_files.txt

sh/tests/solutions/set-env-vars.sh

@@ -0,0 +1,7 @@
+#!/usr/bin/env bash
+
+export MY_MESSAGE="Hello World"
+export MY_NUM=100
+export MY_PI=3.142
+# Grep only new vars
+printenv | grep "MY_"

sh/tests/solutions/set-internal-vars.sh

@@ -0,0 +1,8 @@
+MY_MESSAGE="Hello World"
+MY_NUM=100
+MY_PI=3.142
+MY_ARR=(one, two, three, four, five)
+echo $MY_MESSAGE
+echo $MY_NUM
+echo $MY_PI
+echo ${MY_ARR[*]}

subjects/ai/backtesting-on-the-sp500/audit/README.md

@@ -1,112 +0,0 @@
-# Backtesting on the SP500 - audit
-
-### Preliminary
-
-###### Does the structure of the project is as below ?
-
-```
-project
-│   README.md
-│   environment.yml
-│
-└───data
-│   │   sp500.csv
-│   |   prices.csv
-│
-└───notebook
-│   │   analysis.ipynb
-|
-|───scripts
-|   │   memory_reducer.py
-|   │   preprocessing.py
-|   │   create_signal.py
-|   |   backtester.py
-│   |   main.py
-│
-└───results
-    │   plots
-    │   results.txt
-    │   outliers.txt
-
-```
-
-###### Does the readme file contain a description of the project, explain how to run the code from an empty environment, give a summary of the implementation of each python file and contain a conclusion that gives the performance of the strategy?
-
-###### Does the environment contain all libraries used and their versions that are necessary to run the code ?
-
-###### Does the notebook contain a missing values analysis? **Example**: number of missing values per variables or per year
-
-###### Does the notebook contain an outliers analysis?
-
-###### Does the notebook contain a Histogram of average price for companies for all variables (saved the plot with the images) ? This is required only for `prices.csv` data.
-
-###### Does the notebook describe at least 5 outliers ('ticker', 'date', price) ? To check the outliers it is simple: Search the historical stock price on Google at the given date and compare. The price may fluctuate a bit. The goal here is not to match the historical price found on Google but to detect a huge difference between the price in our data and the real historical one.
-
-Notes:
-
-- For all questions always check the values are sorted by date. If not the answers are wrong.
-- The plots are validated only if they contain a title
-
-### Python files
-
-#### 1. memory_reducer.py
-
-###### Do the `prices` data set weights less than **8MB** (Mega Bytes) ?
-
-###### Do the `sp500` data set weights less than **0.15MB** (Mega Bytes) ?
-
-###### Do the data type is greater than `np.float32` ? Smaller data type may alter the precision of the data.
-
-#### 2. preprocessing.py
-
-##### The data is agregated on a monthly period and only the last element is kept
-
-##### The outliers are filtered out by removing all prices bigger than 10k $ and smaller than 0.1 $
-
-##### The historical return is computed using only current and past values.
-
-##### The futur return is computed using only current and futur value. (Reminder: as the data is resampled monthly, computing the return is straightforward)
-
-##### The outliers in the returns data is set to NaN for all returns not in the years 2008 and 2009. The filters are: return > 1 and return < -0.5.
-
-##### The missing values are filled using the last value available **for the company**. `df.fillna(method='ffill')` is wrong because the previous value can be the return or price of another company.
-
-##### The missing values that can't be filled using a the previous existing value are dropped.
-
-##### The number of missing values is 0
-
-Best practice:
-
-    Do not fill the last values for the futur return because the values are missing because the data set ends at a given date. Filling the previous doesn't make sense. It makes more sense to drop the row because the backtest focuses on observed data.
-
-#### 3. create_signal.py
-
-##### The metric `average_return_1y` is added as a new column if the merged DataFrame. The metric is relative to a company. It is important to group the data by company first before to compute the average return over 1y. It is accepted to consider that one year is 12 consecutive rows.
-
-##### The signal is added as a new column to the merged DataFrame. The signal which is boolean indicates whether, within the same month, the company is in the top 20. The top 20 corresponds to the 20 companies with the 20 highest metric within the same month. The highest metric gets the rank 1 (if rank is used the parameter `ascending` should be set to `False`).
-
-#### 4. backtester.py
-
-##### The PnL is computed by multiplying the signal `Series` by the **futur returns**.
-
-##### The return of the strategy is computed by dividing the PnL by the sum of the signal `Series`.
-
-##### The signal used on the SP500 is the `pd.Series([20,20,...,20])`
-
-##### The series used in the plot are the cumulative PnL. `cumsum` can be used
-
-##### The PnL on the full historical data is **smaller than 75$**. If not, it means that the outliers where not corrected correctly.
-
-###### Does the plot contain a title ?
-
-###### Does the plot contain a legend ?
-
-###### Does the plot contain a x-axis and y-axis name ?
-
-![alt text][performance]
-
-[performance]: ../images/w1_weekend_plot_pnl.png "Cumulative Performance"
-
-#### 5. main.py
-
-###### The command `python main.py` executes the code from data imports to the backtest and save the results? It shouldn't return any error to validate the project.

subjects/ai/backtesting-sp500/audit/README.md

@@ -0,0 +1,110 @@
+#### Functional
+
+###### Is the structure of the project as below?
+
+```
+project
+│   README.md
+│   environment.yml
+│
+└───data
+│   │   sp500.csv
+│   |   prices.csv
+│
+└───notebook
+│   │   analysis.ipynb
+|
+|───scripts
+|   │   memory_reducer.py
+|   │   preprocessing.py
+|   │   create_signal.py
+|   |   backtester.py
+│   |   main.py
+│
+└───results
+    │   plots
+    │   results.txt
+    │   outliers.txt
+
+```
+
+###### Does the readme file contain a description of the project, explain how to run the code from an empty environment, give a summary of the implementation of each python file and contain a conclusion that gives the performance of the strategy?
+
+###### Does the environment contain all libraries used and their versions that are necessary to run the code?
+
+###### Does the notebook contain a missing values analysis? **Example**: number of missing values per variables or per year
+
+###### Does the notebook contain an outliers analysis?
+
+###### Does the notebook contain a Histogram of average price for companies for all variables (saved the plot with the images)? This is required only for **prices.csv** data.
+
+###### Does the notebook describe at least 5 outliers ('ticker', 'date', price) ? To check the outliers it is simple: Search the historical stock price on Google at the given date and compare. The price may fluctuate a bit. The goal here is not to match the historical price found on Google but to detect a huge difference between the price in our data and the real historical one.
+
+##### Notes:
+
+- For all questions always check the values are sorted by date. If not the answers are wrong.
+- The plots are validated only if they contain a title
+
+### Python files
+
+##### 1. memory_reducer.py
+
+###### Does the **prices** data set weight less than **8MB** (Mega Bytes)?
+
+###### Does the **sp500** data set weight less than **0.15MB** (Mega Bytes)?
+
+###### Is the data type greater than **np.float32**? Smaller data types may alter the precision of the data.
+
+##### 2. preprocessing.py
+
+###### Is the data agregated on a monthly period and only the last element is kept?
+
+###### Are the outliers filtered out by removing all prices bigger than 10k$ and smaller than 0.1$?
+
+###### Is the historical return computed using only current and past values?
+
+###### Is the future return computed using only current and future value? (Reminder: as the data is resampled monthly, computing the return is straightforward)
+
+###### Are the outliers in the returns data set to NaN for all returns not in the years 2008 and 2009? The filters are: return > 1 and return < -0.5.
+
+###### Are the missing values filled using the last value available **for the company**. **df.fillna(method='ffill')** is wrong because the previous value can be the return or price of another company.
+
+###### Are the missing values that can't be filled using a the previous existing value dropped?
+
+###### Are the number of missing values 0?
+
+Best practice:
+
+    Do not fill the last values for the future return because the values are missing because the data set ends at a given date. Filling the previous doesn't make sense. It makes more sense to drop the row because the backtest focuses on observed data.
+
+##### 3. create_signal.py
+
+###### Is the metric **average_return_1y** added as a new column in the merged DataFrame? The metric is relative to a company. It is important to group the data by company first before to compute the average return over 1y. It is accepted to consider that one year is 12 consecutive rows.
+
+###### Is the signal added as a new column to the merged DataFrame? The signal which is boolean indicates whether, within the same month, the company is in the top 20. The top 20 corresponds to the 20 companies with the 20 highest metric within the same month. The highest metric gets the rank 1 (if rank is used the parameter **ascending** should be set to **False**).
+
+##### 4. backtester.py
+
+###### Is the PnL computed by multiplying the signal **Series** by the **future returns**?
+
+###### Is the return of the strategy computed by dividing the PnL by the sum of the signal **Series**.
+
+###### Is the signal used on the SP500 the **pd.Series([20,20,...,20])**?
+
+###### Are the series used in the plot the cumulative PnL? **cumsum** can be used.
+
+###### Is the PnL on the full historical data **smaller than 75$**? If not, it means that the outliers where not corrected correctly.
+
+###### Does the plot contain a title?
+
+###### Does the plot contain a legend?
+
+###### Does the plot contain a x-axis and y-axis name?
+
+![alt text][performance]
+
+[performance]: ../images/w1_weekend_plot_pnl.png "Cumulative Performance"
+
+##### 5. main.py
+
+###### Does the command **python main.py** execute the code from data imports to the backtest and save the results? It shouldn't return any error to validate the project.