il2-test-utils 0.1.1

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use super::*;

#[test]
fn test_fill_with_value() {
    let mut v: [u32; 6] = [0; 6];
    fill_with_value(&mut v, 255);
    let exp: [u32; 6] = [255; 6];
    assert_eq!(&v, &exp);
}

#[test]
fn test_fill_with_seq() {
    let mut v: [u32; 6] = [0; 6];
    fill_with_seq(&mut v, 0, 3);
    let exp: [u32; 6] = [0, 3, 6, 9, 12, 15];
    assert_eq!(&v, &exp);
}

#[test]
fn test_fill_with_seq_gen() {
    let mut v: [u32; 6] = [0; 6];
    // Using a generator based on the Collatz conjecture.
    fill_with_seq_gen(&mut v, 5, |v| if v % 2 == 0 { v / 2 } else { 3 * v + 1 });
    let exp: [u32; 6] = [5, 16, 8, 4, 2, 1];
    assert_eq!(&v, &exp);
}

#[test]
fn test_fill_with_generator() {
    struct Gen(u32, u32);
    let mut v: [u32; 6] = [0; 6];
    let mut g: Gen = Gen { 0: 0, 1: 1 };

    // A Fibonacci Generator
    fill_with_generator(&mut v, &mut g, |g| {
        let r = g.0;
        g.0 = g.1;
        g.1 += r;
        r
    });
    let exp: [u32; 6] = [0, 1, 1, 2, 3, 5];
    assert_eq!(&v, &exp);
}