public/rust/tests/vehicles_test/src/main.rs

// Create the trait Vehicle with the model and year

// In a border cross you want to keep a list of all the vehicles that
// are waiting to enter the country. You want to keep a waiting list
// of the vehicle but the vehicles can be of two types: Car or Truck
// With the following structure:

// create a function that receives a vector of structures that
// implement the Vehicle trait

use vehicles::{all_models, Car, Truck, Vehicle};

#[allow(dead_code)]
fn main() {
	let vehicles: Vec<&dyn Vehicle> = vec![
		&Car {
			plate_nbr: "A3D5C7",
			model: "Model 3",
			horse_power: 325,
			year: 2010,
		},
		&Truck {
			plate_nbr: "V3D5CT",
			model: "Ranger",
			horse_power: 325,
			year: 2010,
			load_tons: 40,
		},
	];
	println!("{:?}", all_models(vehicles));
}

#[allow(dead_code)]
fn setup_cars<'a>() -> Vec<&'a dyn Vehicle> {
	let cars: Vec<&dyn Vehicle> = vec![
		&Car {
			plate_nbr: "A3D5C7",
			model: "Model 3",
			horse_power: 325,
			year: 2010,
		},
		&Car {
			plate_nbr: "A785P7",
			model: "S",
			horse_power: 500,
			year: 1980,
		},
		&Car {
			plate_nbr: "D325C7",
			model: "300",
			horse_power: 300,
			year: 2000,
		},
		&Car {
			plate_nbr: "Z3KCH4",
			model: "Montana",
			horse_power: 325,
			year: 2020,
		},
	];
	cars
}

#[allow(dead_code)]
fn setup_trucks<'a>() -> Vec<&'a dyn Vehicle> {
	let trucks: Vec<&dyn Vehicle> = vec![
		&Truck {
			plate_nbr: "V3D5CT",
			model: "Ranger",
			horse_power: 325,
			year: 2010,
			load_tons: 40,
		},
		&Truck {
			plate_nbr: "V785PT",
			model: "Silverado",
			horse_power: 500,
			year: 1980,
			load_tons: 40,
		},
		&Truck {
			plate_nbr: "DE2SC7",
			model: "Sierra",
			horse_power: 300,
			year: 2000,
			load_tons: 40,
		},
		&Truck {
			plate_nbr: "3DH432",
			model: "Cybertruck",
			horse_power: 325,
			year: 2020,
			load_tons: 40,
		},
	];
	trucks
}

#[test]
fn all_car_models() {
	let cars = setup_cars();
	assert_eq!(all_models(cars), ["Model 3", "S", "300", "Montana"]);
}

#[test]
fn all_truck_models() {
	let trucks = setup_trucks();
	assert_eq!(
		all_models(trucks),
		["Ranger", "Silverado", "Sierra", "Cybertruck"]
	);
}

#[test]
fn cars_and_trucks_models() {
	let mut vehicles = setup_cars();
	vehicles.extend(setup_trucks());
	assert_eq!(
		all_models(vehicles),
		[
			"Model 3",
			"S",
			"300",
			"Montana",
			"Ranger",
			"Silverado",
			"Sierra",
			"Cybertruck"
		]
	);
}