Add subject and tests for exercise `slices_to_map`

rust/tests/slices_to_map_test/Cargo.lock

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+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+[[package]]
+name = "slices_to_map"
+version = "0.1.0"
+
+[[package]]
+name = "slices_to_map_test"
+version = "0.1.0"
+dependencies = [
+ "slices_to_map",
+]

rust/tests/slices_to_map_test/Cargo.toml

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+[package]
+name = "slices_to_map_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]
+slices_to_map = { path = "../../../../rust-piscine-solutions/slices_to_map"}

rust/tests/slices_to_map_test/src/main.rs

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+// # Instructions:
+// Create a function that borrows two slices (&[T]) and returns a hashmap where
+// the first slice represents the keys and the second represents the values.
+
+// The signature of the function is the following
+// fn slices_to_map<'a, T: Hash + Eq, U>(keys: &'a [T], values: &'a [U]) -> HashMap<&'a T, &'a U> {
+
+// # Example:
+// for the slices &["hello", "how", "are", "you"] &[1, 3, 5, 8]
+// returns the hashmap ["hello": 1, "how": 3, "are": 5, "you":8]
+
+use slices_to_map::*;
+#[allow(unused_imports)]
+use std::collections::HashMap;
+
+#[allow(dead_code)]
+fn main() {
+	let keys = ["Olivia", "Liam", "Emma", "Noah", "James"];
+	let values = [1, 3, 23, 5, 2];
+	println!("{:?}", slices_to_map(&keys, &values));
+}
+
+#[cfg(test)]
+mod tests {
+	use super::*;
+
+	#[test]
+	fn test_same_length() {
+		let keys = ["Olivia", "Liam", "Emma", "Noah", "James"];
+		let values = [1, 3, 23, 5, 2];
+		let mut expected = HashMap::new();
+		expected.insert(&"Olivia", &1);
+		expected.insert(&"Liam", &3);
+		expected.insert(&"Emma", &23);
+		expected.insert(&"Noah", &5);
+		expected.insert(&"James", &2);
+		assert_eq!(slices_to_map(&keys, &values), expected);
+	}
+
+	#[test]
+	fn test_different_length() {
+		let keys = ["Olivia", "Liam", "Emma", "Noah", "James"];
+		let values = [1, 3, 23, 5, 2, 9];
+		let mut expected = HashMap::new();
+		expected.insert(&"Olivia", &1);
+		expected.insert(&"Liam", &3);
+		expected.insert(&"Emma", &23);
+		expected.insert(&"Noah", &5);
+		expected.insert(&"James", &2);
+		assert_eq!(slices_to_map(&keys, &values), expected);
+
+		let keys = ["Olivia", "Liam", "Emma", "Noah", "James", "Isabella"];
+		let values = [1, 3, 23, 5, 2];
+		assert_eq!(slices_to_map(&keys, &values), expected);
+	}
+
+	#[test]
+	fn it_works_for_vecs() {
+		let mut expected = HashMap::new();
+		expected.insert(&"Olivia", &1);
+		expected.insert(&"Liam", &3);
+		expected.insert(&"Emma", &23);
+		expected.insert(&"Noah", &5);
+		expected.insert(&"James", &2);
+
+		let keys = ["Olivia", "Liam", "Emma", "Noah", "James"];
+		let values = [1, 3, 23, 5, 2];
+
+		assert_eq!(slices_to_map(&keys, &values), expected);
+		let keys = vec!["Olivia", "Liam", "Emma", "Noah", "James"];
+		let values = vec![1, 3, 23, 5, 2, 9];
+		assert_eq!(slices_to_map(&keys, &values), expected);
+
+		let keys = vec!["Olivia", "Liam", "Emma", "Noah", "James", "Isabella"];
+		let values = vec![1, 3, 23, 5, 2];
+		assert_eq!(slices_to_map(&keys, &values), expected);
+	}
+}

subjects/slices_to_map/README.md

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+## slices_to_map
+
+### Instructions:
+
+Create a function that borrows two slices and returns a hashmap where the first slice represents the keys and the second represents the values.
+
+### Expected Function
+
+```rust
+pub fn slices_to_map(&[T], &[U]) -> HashMap<&T, &U> {
+}
+```
+
+### Usage
+
+Here is a program to test your function.
+
+```rust
+fn main() {
+	let keys = ["Olivia", "Liam", "Emma", "Noah", "James"];
+	let values = [1, 3, 23, 5, 2];
+	println!("{:?}", slices_to_map(&keys, &values));
+}
+```
+
+And its output
+
+```console
+student@ubuntu:~/[[ROOT]]/test$ cargo run
+{"Liam": 3, "James": 2, "Emma": 23, "Noah": 5, "Olivia": 1}
+student@ubuntu:~/[[ROOT]]/test$
+```