From 39b6310b689cc917cf15306475e8fa2e7cf515e6 Mon Sep 17 00:00:00 2001
From: Augusto <aug.ornelas@gmail.com>
Date: Sun, 27 Dec 2020 17:19:11 +0000
Subject: [PATCH] Add the subject and test of `string_permutation`

---
 rust/tests/string_permutation_test/Cargo.lock | 12 ++++++
 rust/tests/string_permutation_test/Cargo.toml | 10 +++++
 .../tests/string_permutation_test/src/main.rs | 34 +++++++++++++++++
 subjects/string_permutation/README.md         | 37 +++++++++++++++++++
 4 files changed, 93 insertions(+)
 create mode 100644 rust/tests/string_permutation_test/Cargo.lock
 create mode 100644 rust/tests/string_permutation_test/Cargo.toml
 create mode 100644 rust/tests/string_permutation_test/src/main.rs
 create mode 100644 subjects/string_permutation/README.md

diff --git a/rust/tests/string_permutation_test/Cargo.lock b/rust/tests/string_permutation_test/Cargo.lock
new file mode 100644
index 00000000..490d5b7f
--- /dev/null
+++ b/rust/tests/string_permutation_test/Cargo.lock
@@ -0,0 +1,12 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+[[package]]
+name = "string_permutation"
+version = "0.1.0"
+
+[[package]]
+name = "string_permutation_test"
+version = "0.1.0"
+dependencies = [
+ "string_permutation",
+]
diff --git a/rust/tests/string_permutation_test/Cargo.toml b/rust/tests/string_permutation_test/Cargo.toml
new file mode 100644
index 00000000..2f2fc560
--- /dev/null
+++ b/rust/tests/string_permutation_test/Cargo.toml
@@ -0,0 +1,10 @@
+[package]
+name = "string_permutation_test"
+version = "0.1.0"
+authors = ["Augusto <aug.ornelas@gmail.com>"]
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+string_permutation = { path = "../../../../rust-piscine-solutions/string_permutation"}
\ No newline at end of file
diff --git a/rust/tests/string_permutation_test/src/main.rs b/rust/tests/string_permutation_test/src/main.rs
new file mode 100644
index 00000000..38329915
--- /dev/null
+++ b/rust/tests/string_permutation_test/src/main.rs
@@ -0,0 +1,34 @@
+// Define the function `is_permutation` that returns true if the
+// string `s1` is a permutation of `s2`, otherwise it returns false
+// `s1` is a permutation of `s2` if all the elements in `s1` appear the
+// same number of times in `s2` and all the characters in `s1` appear in
+// `s2` even if in different order)
+use string_permutation::*;
+
+#[allow(dead_code)]
+fn main() {
+	let word = "thought";
+	let word1 = "thougth";
+	println!(
+		"Is `{}` a permutation of `{}`? = {}",
+		word,
+		word1,
+		is_permutation(word, word1)
+	);
+}
+
+#[test]
+fn permutation_ascii() {
+	assert!(is_permutation("abcde", "edbca"));
+	assert!(!is_permutation("avcde", "edbca"));
+	assert!(!is_permutation("cde", "edbca"));
+	assert!(is_permutation("code", "deco"));
+	assert!(!is_permutation("code", "deeco"));
+	assert!(!is_permutation("codde", "deeco"));
+}
+
+#[test]
+fn permutation_unicode() {
+	assert!(is_permutation("hello♥", "♥oelhl"));
+	assert!(!is_permutation("♥", "♥♥"));
+}
diff --git a/subjects/string_permutation/README.md b/subjects/string_permutation/README.md
new file mode 100644
index 00000000..d33f0222
--- /dev/null
+++ b/subjects/string_permutation/README.md
@@ -0,0 +1,37 @@
+## string_permutation
+
+### Instructions
+
+Define the function `is_permutation` that returns true if the string `s1` is a permutation of `s2`, otherwise it returns false `s1` is a permutation of `s2` if all the elements in `s1` appear the same number of times in `s2` and all the characters in `s1` appear in `s2` even if in different order)
+
+### Expected Function
+
+```rust
+fn is_permutation(s1: &str, s2: &str) -> bool {
+}
+```
+
+### Usage
+
+Here is a program to test your function.
+
+```rust
+fn main() {
+	let word = "thought";
+	let word1 = "thougth";
+	println!(
+		"Is `{}` a permutation of `{}`? = {}",
+		word,
+		word1,
+		is_permutation(word, word1)
+	);
+}
+```
+
+And its output
+
+```console
+student@ubuntu:~/[[ROOT]]/test$ cargo run
+Is `thought` a permutation of `thougth`? = true
+student@ubuntu:~/[[ROOT]]/test$
+```