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tests: add more empty content diff samples

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This commit is contained in:
Yuya Nishihara 2024-08-14 15:01:56 +09:00
parent 8b222e4038
commit 73e4daf5ce
1 changed files with 42 additions and 1 deletions
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43
lib/src/diff.rs
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@ -970,9 +970,50 @@ mod tests {
}
#[test]
fn test_diff_single_empty_input() {
fn test_diff_some_empty_inputs() {
// All empty
let diff = Diff::default_refinement([""]);
assert_eq!(diff.hunks().collect_vec(), vec![]);
let diff = Diff::default_refinement(["", ""]);
assert_eq!(diff.hunks().collect_vec(), vec![]);
let diff = Diff::default_refinement(["", "", ""]);
assert_eq!(diff.hunks().collect_vec(), vec![]);
// One empty
let diff = Diff::default_refinement(["a b", ""]);
assert_eq!(
diff.hunks().collect_vec(),
vec![DiffHunk::different(["a b", ""])]
);
let diff = Diff::default_refinement(["", "a b"]);
assert_eq!(
diff.hunks().collect_vec(),
vec![DiffHunk::different(["", "a b"])]
);
// One empty, two match
let diff = Diff::default_refinement(["a b", "", "a b"]);
assert_eq!(
diff.hunks().collect_vec(),
vec![DiffHunk::different(["a b", "", "a b"])]
);
let diff = Diff::default_refinement(["", "a b", "a b"]);
assert_eq!(
diff.hunks().collect_vec(),
vec![DiffHunk::different(["", "a b", "a b"])]
);
// Two empty, one differs
let diff = Diff::default_refinement(["a b", "", ""]);
assert_eq!(
diff.hunks().collect_vec(),
vec![DiffHunk::different(["a b", "", ""])]
);
let diff = Diff::default_refinement(["", "a b", ""]);
assert_eq!(
diff.hunks().collect_vec(),
vec![DiffHunk::different(["", "a b", ""])]
);
}
#[test]