🦀 Small exercises to get you used to reading and writing Rust code!
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use assert_cmd::prelude::*;
use glob::glob;
use predicates::boolean::PredicateBooleanExt;
use std::fs::File;
use std::io::Read;
use std::process::Command;
#[test]
fn runs_without_arguments() {
let mut cmd = Command::cargo_bin("rustlings").unwrap();
cmd.assert().success();
}
#[test]
fn fails_when_in_wrong_dir() {
Command::cargo_bin("rustlings")
.unwrap()
.current_dir("tests/")
.assert()
.code(1);
}
#[test]
fn verify_all_success() {
Command::cargo_bin("rustlings")
.unwrap()
.arg("v")
.current_dir("tests/fixture/success")
.assert()
.success();
}
#[test]
fn verify_fails_if_some_fails() {
Command::cargo_bin("rustlings")
.unwrap()
.arg("v")
.current_dir("tests/fixture/failure")
.assert()
.code(1);
}
#[test]
fn run_single_compile_success() {
Command::cargo_bin("rustlings")
.unwrap()
.args(&["r", "compSuccess"])
.current_dir("tests/fixture/success/")
.assert()
.success();
}
#[test]
fn run_single_compile_failure() {
Command::cargo_bin("rustlings")
.unwrap()
.args(&["r", "compFailure"])
.current_dir("tests/fixture/failure/")
.assert()
.code(1);
}
#[test]
fn run_single_test_success() {
Command::cargo_bin("rustlings")
.unwrap()
.args(&["r", "testSuccess"])
.current_dir("tests/fixture/success/")
.assert()
.success();
}
#[test]
fn run_single_test_failure() {
Command::cargo_bin("rustlings")
.unwrap()
.args(&["r", "testFailure"])
.current_dir("tests/fixture/failure/")
.assert()
.code(1);
}
#[test]
fn run_single_test_not_passed() {
Command::cargo_bin("rustlings")
.unwrap()
.args(&["r", "testNotPassed.rs"])
.current_dir("tests/fixture/failure/")
.assert()
.code(1);
}
#[test]
fn run_single_test_no_filename() {
Command::cargo_bin("rustlings")
.unwrap()
.arg("r")
.current_dir("tests/fixture/")
.assert()
.code(1);
}
#[test]
fn run_single_test_no_exercise() {
Command::cargo_bin("rustlings")
.unwrap()
.args(&["r", "compNoExercise.rs"])
.current_dir("tests/fixture/failure")
.assert()
.code(1);
}
#[test]
fn get_hint_for_single_test() {
Command::cargo_bin("rustlings")
.unwrap()
.args(&["h", "testFailure"])
.current_dir("tests/fixture/failure")
.assert()
.code(0)
.stdout("Hello!\n");
}
#[test]
fn all_exercises_require_confirmation() {
for exercise in glob("exercises/**/*.rs").unwrap() {
let path = exercise.unwrap();
let source = {
let mut file = File::open(&path).unwrap();
let mut s = String::new();
file.read_to_string(&mut s).unwrap();
s
};
source.matches("// I AM NOT DONE").next().expect(&format!(
"There should be an `I AM NOT DONE` annotation in {:?}",
path
));
}
}
#[test]
fn run_compile_exercise_does_not_prompt() {
Command::cargo_bin("rustlings")
.unwrap()
.args(&["r", "pending_exercise"])
.current_dir("tests/fixture/state")
.assert()
.code(0)
.stdout(predicates::str::contains("I AM NOT DONE").not());
}
#[test]
fn run_test_exercise_does_not_prompt() {
Command::cargo_bin("rustlings")
.unwrap()
.args(&["r", "pending_test_exercise"])
.current_dir("tests/fixture/state")
.assert()
.code(0)
.stdout(predicates::str::contains("I AM NOT DONE").not());
}
#[test]
fn run_single_test_success_with_output() {
Command::cargo_bin("rustlings")
.unwrap()
.args(&["--nocapture", "r", "testSuccess"])
.current_dir("tests/fixture/success/")
.assert()
.code(0)
.stdout(predicates::str::contains("THIS TEST TOO SHALL PAS"));
}
#[test]
fn run_single_test_success_without_output() {
Command::cargo_bin("rustlings")
.unwrap()
.args(&["r", "testSuccess"])
.current_dir("tests/fixture/success/")
.assert()
.code(0)
.stdout(predicates::str::contains("THIS TEST TOO SHALL PAS").not());
}