Add tuples' exercise and test

rust/tests/tuples_test/Cargo.lock

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

rust/tests/tuples_test/Cargo.toml

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

rust/tests/tuples_test/src/main.rs

@@ -0,0 +1,35 @@
+// Define a tuple to represent a student
+// Each student is identified by an id number of type i32
+// Its name and its last name as a string
+// Print the content of the tuple to stdout
+
+use tuples::*;
+
+fn main() {
+	let student = Student(20, "Pedro".to_string(), "Domingos".to_string());
+	println!("Student: {:?}", student);
+	// After print only the first name
+	println!("Student first name: {}", first_name(&student));
+	// After print only the last name
+	println!("Student last name: {}", last_name(&student));
+	// After print only the id
+	println!("Student Id: {}", id(&student));
+}
+
+#[test]
+fn test_id() {
+	let student = Student(20, String::from("Pedro"), String::from("Domingos"));
+	assert_eq!(id(&student), 20);
+}
+
+#[test]
+fn test_first_name() {
+	let student = Student(20, String::from("Pedro"), String::from("Domingos"));
+	assert_eq!(first_name(&student), "Pedro".to_string());
+}
+
+#[test]
+fn test_last_name() {
+	let student = Student(20, String::from("Pedro"), String::from("Domingos"));
+	assert_eq!(last_name(&student), "Domingos".to_string());
+}

subjects/tuples/README.md

@@ -0,0 +1,49 @@
+## tuples
+
+### Instructions
+
+- Define a tuple structure to represent a student.
+
+- Each student is identified by an id number of type i32, his/her name and his/her last name as a string Print the content of the tuple to stdout
+
+- Then define three functions to return the id, first name and last name.
+
+### Expected Functions
+
+```rust
+pub fn id(student: &Student) -> i32 {
+}
+
+pub fn first_name(student: &Student) -> String {
+}
+
+pub fn last_name(student: &Student) -> String {
+}
+```
+
+### Usage
+
+Here is a program to test you're functions
+
+```rust
+use tuples::*;
+
+fn main() {
+	let student = Student(20, "Pedro".to_string(), "Domingos".to_string());
+	println!("Student: {:?}", student);
+	println!("Student first name: {}", first_name(&student));
+	println!("Student last name: {}", last_name(&student));
+	println!("Student Id: {}", id(&student));
+}
+```
+
+And its output:
+
+```console
+student@ubuntu:~/[[ROOT]]/test$ cargo run
+Student: Student(20, "Pedro", "Domingos")
+Student first name: Pedro
+Student last name: Domingos
+Student Id: 20
+student@ubuntu:~/[[ROOT]]/test$
+```