Add the subject and test for the exercise `collect`

rust/tests/collect_test/Cargo.lock

@@ -0,0 +1,12 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+[[package]]
+name = "collect"
+version = "0.1.0"
+
+[[package]]
+name = "collect_test"
+version = "0.1.0"
+dependencies = [
+ "collect",
+]

rust/tests/collect_test/Cargo.toml

@@ -0,0 +1,10 @@
+[package]
+name = "collect_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]
+collect = { path = "../../../../rust-piscine-solutions/collect"}

rust/tests/collect_test/src/main.rs

@@ -0,0 +1,25 @@
+// Implement the function bubble_sort which receives a vector Vec<i32>
+// and return the same vector but in increasing order using the bubble
+// sort algorithm
+
+use collect::*;
+
+fn main() {
+	let ref mut v = vec![3, 2, 4, 5, 1, 7];
+	let mut b = v.clone();
+	bubble_sort(v);
+	println!("{:?}", v);
+
+	b.sort();
+	println!("{:?}", b);
+}
+
+#[test]
+fn test_ordering() {
+	let ref mut v = vec![3, 2, 4, 5, 1, 7];
+	let mut b = v.clone();
+
+	b.sort();
+	bubble_sort(v);
+	assert_eq!(*v, b);
+}

subjects/collect/README.md

@@ -0,0 +1,37 @@
+## collect
+
+### Instructions
+
+Implement the function bubble_sort which receives a vector Vec<i32> and return the same vector but in increasing order using the bubble sort algorithm
+
+### Expected Function
+
+```rust
+fn bubble_sort(vec: &mut Vec<i32>) {
+}
+```
+
+### Usage
+
+Here is a program to test your function.
+
+```rust
+fn main() {
+	let ref mut v = vec![3, 2, 4, 5, 1, 7];
+	let mut b = v.clone();
+	bubble_sort(v);
+	println!("{:?}", v);
+
+	b.sort();
+	println!("{:?}", b);
+}
+```
+
+And its output
+
+```console
+student@ubuntu:~/[[ROOT]]/test$ cargo run
+[1, 2, 3, 4, 5, 7]
+[1, 2, 3, 4, 5, 7]
+student@ubuntu:~/[[ROOT]]/test$
+```