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std::iterator::order test cases

This commit is contained in:
blake2-ppc 2013-08-08 22:07:22 +02:00
parent 5dde29c947
commit 8ed8a41c62
1 changed files with 47 additions and 0 deletions
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47
src/libstd/iterator.rs
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@ -1699,6 +1699,53 @@ pub mod order {
}
}
}
#[test]
fn test_lt() {
use vec::ImmutableVector;
let empty: [int, ..0] = [];
let xs = [1,2,3];
let ys = [1,2,0];
assert!(!lt(xs.iter(), ys.iter()));
assert!(!le(xs.iter(), ys.iter()));
assert!( gt(xs.iter(), ys.iter()));
assert!( ge(xs.iter(), ys.iter()));
assert!( lt(ys.iter(), xs.iter()));
assert!( le(ys.iter(), xs.iter()));
assert!(!gt(ys.iter(), xs.iter()));
assert!(!ge(ys.iter(), xs.iter()));
assert!( lt(empty.iter(), xs.iter()));
assert!( le(empty.iter(), xs.iter()));
assert!(!gt(empty.iter(), xs.iter()));
assert!(!ge(empty.iter(), xs.iter()));
// Sequence with NaN
let u = [1.0, 2.0];
let v = [0.0/0.0, 3.0];
assert!(!lt(u.iter(), v.iter()));
assert!(!le(u.iter(), v.iter()));
assert!(!gt(u.iter(), v.iter()));
assert!(!ge(u.iter(), v.iter()));
let a = [0.0/0.0];
let b = [1.0];
let c = [2.0];
assert!(lt(a.iter(), b.iter()) == (a[0] < b[0]));
assert!(le(a.iter(), b.iter()) == (a[0] <= b[0]));
assert!(gt(a.iter(), b.iter()) == (a[0] > b[0]));
assert!(ge(a.iter(), b.iter()) == (a[0] >= b[0]));
assert!(lt(c.iter(), b.iter()) == (c[0] < b[0]));
assert!(le(c.iter(), b.iter()) == (c[0] <= b[0]));
assert!(gt(c.iter(), b.iter()) == (c[0] > b[0]));
assert!(ge(c.iter(), b.iter()) == (c[0] >= b[0]));
}
}
#[cfg(test)]