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treemap: add more tests for set difference

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This commit is contained in:
Daniel Micay 2013-03-10 20:25:09 -04:00
parent ad16fecc33
commit d55225f04a
1 changed files with 21 additions and 16 deletions
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37
src/libstd/treemap.rs
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@ -1141,25 +1141,30 @@ mod test_set {
#[test]
fn test_difference() {
let mut a = TreeSet::new();
let mut b = TreeSet::new();
fn check_difference(a: &[int], b: &[int], expected: &[int]) {
let mut set_a = TreeSet::new();
let mut set_b = TreeSet::new();
fail_unless!(a.insert(1));
fail_unless!(a.insert(3));
fail_unless!(a.insert(5));
fail_unless!(a.insert(9));
fail_unless!(a.insert(11));
for a.each |x| { fail_unless!(set_a.insert(*x)) }
for b.each |y| { fail_unless!(set_b.insert(*y)) }
fail_unless!(b.insert(3));
fail_unless!(b.insert(9));
let mut i = 0;
let expected = [1, 5, 11];
for a.difference(&b) |x| {
fail_unless!(*x == expected[i]);
i += 1
let mut i = 0;
for set_a.difference(&set_b) |x| {
fail_unless!(*x == expected[i]);
i += 1;
}
fail_unless!(i == expected.len());
}
fail_unless!(i == expected.len());
check_difference([], [], []);
check_difference([1, 12], [], [1, 12]);
check_difference([], [1, 2, 3, 9], []);
check_difference([1, 3, 5, 9, 11],
[3, 9],
[1, 5, 11]);
check_difference([-5, 11, 22, 33, 40, 42],
[-12, -5, 14, 23, 34, 38, 39, 50],
[11, 22, 33, 40, 42]);
}
#[test]