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Added some missing tests

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This commit is contained in:
Armin Ronacher 2021-02-21 20:06:28 +01:00
parent 1a0aa9b142
commit ddb73d8351
1 changed files with 40 additions and 0 deletions
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40
src/algorithms/utils.rs
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@ -150,3 +150,43 @@ fn test_unique() {
.collect::<Vec<_>>(); .collect::<Vec<_>>();
assert_eq!(u, vec![('a', 0), ('c', 2)]); assert_eq!(u, vec![('a', 0), ('c', 2)]);
} }
#[test]
fn test_common_prefix_len() {
assert_eq!(
common_prefix_len("".as_bytes(), 0..0, "".as_bytes(), 0..0),
0
);
assert_eq!(
common_prefix_len("foobarbaz".as_bytes(), 0..9, "foobarblah".as_bytes(), 0..10),
7
);
assert_eq!(
common_prefix_len("foobarbaz".as_bytes(), 0..9, "blablabla".as_bytes(), 0..9),
0
);
assert_eq!(
common_prefix_len("foobarbaz".as_bytes(), 3..9, "foobarblah".as_bytes(), 3..10),
4
);
}
#[test]
fn test_common_suffix_len() {
assert_eq!(
common_suffix_len("".as_bytes(), 0..0, "".as_bytes(), 0..0),
0
);
assert_eq!(
common_suffix_len("1234".as_bytes(), 0..4, "X0001234".as_bytes(), 0..8),
4
);
assert_eq!(
common_suffix_len("1234".as_bytes(), 0..4, "Xxxx".as_bytes(), 0..4),
0
);
assert_eq!(
common_suffix_len("1234".as_bytes(), 2..4, "01234".as_bytes(), 2..5),
2
);
}