extern crate luhnmod10;

#[test]
fn test_valid() {
    let tests = [
        ("4242424242424242", true),
        ("4242424242424241", false),
        ("0", true),
        ("00", true),
        ("18", true),
        ("0000000000000000", true),
        ("4242424242424240", false),
        ("4242424242424241", false),
        ("4242424242424242", true),
        ("4242424242424243", false),
        ("4242424242424244", false),
        ("4242424242424245", false),
        ("4242424242424246", false),
        ("4242424242424247", false),
        ("4242424242424248", false),
        ("4242424242424249", false),
        ("42424242424242426", true),
        ("424242424242424267", true),
        ("4242424242424242675", true),
        ("000000018", true),
        ("99999999999999999999", true),
        ("99999999999999999999999999999999999999999999999999999999999999999997", true),
    ];

    for &(number, expected_result) in tests.iter() {
        let result = luhnmod10::valid(number);
        assert!(result == expected_result, format!("valid({}) = {}, expected {}", number, result, expected_result));
    }
}