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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
tree | f435a8308119effd964b339f76abb83a57c29483 /third_party/rust/itertools/tests/merge_join.rs | |
parent | Initial commit. (diff) | |
download | firefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz firefox-26a029d407be480d791972afb5975cf62c9360a6.zip |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'third_party/rust/itertools/tests/merge_join.rs')
-rw-r--r-- | third_party/rust/itertools/tests/merge_join.rs | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/third_party/rust/itertools/tests/merge_join.rs b/third_party/rust/itertools/tests/merge_join.rs new file mode 100644 index 0000000000..3280b7d4ec --- /dev/null +++ b/third_party/rust/itertools/tests/merge_join.rs @@ -0,0 +1,108 @@ +use itertools::EitherOrBoth; +use itertools::free::merge_join_by; + +#[test] +fn empty() { + let left: Vec<u32> = vec![]; + let right: Vec<u32> = vec![]; + let expected_result: Vec<EitherOrBoth<u32, u32>> = vec![]; + let actual_result = merge_join_by(left, right, |l, r| l.cmp(r)) + .collect::<Vec<_>>(); + assert_eq!(expected_result, actual_result); +} + +#[test] +fn left_only() { + let left: Vec<u32> = vec![1,2,3]; + let right: Vec<u32> = vec![]; + let expected_result: Vec<EitherOrBoth<u32, u32>> = vec![ + EitherOrBoth::Left(1), + EitherOrBoth::Left(2), + EitherOrBoth::Left(3) + ]; + let actual_result = merge_join_by(left, right, |l, r| l.cmp(r)) + .collect::<Vec<_>>(); + assert_eq!(expected_result, actual_result); +} + +#[test] +fn right_only() { + let left: Vec<u32> = vec![]; + let right: Vec<u32> = vec![1,2,3]; + let expected_result: Vec<EitherOrBoth<u32, u32>> = vec![ + EitherOrBoth::Right(1), + EitherOrBoth::Right(2), + EitherOrBoth::Right(3) + ]; + let actual_result = merge_join_by(left, right, |l, r| l.cmp(r)) + .collect::<Vec<_>>(); + assert_eq!(expected_result, actual_result); +} + +#[test] +fn first_left_then_right() { + let left: Vec<u32> = vec![1,2,3]; + let right: Vec<u32> = vec![4,5,6]; + let expected_result: Vec<EitherOrBoth<u32, u32>> = vec![ + EitherOrBoth::Left(1), + EitherOrBoth::Left(2), + EitherOrBoth::Left(3), + EitherOrBoth::Right(4), + EitherOrBoth::Right(5), + EitherOrBoth::Right(6) + ]; + let actual_result = merge_join_by(left, right, |l, r| l.cmp(r)) + .collect::<Vec<_>>(); + assert_eq!(expected_result, actual_result); +} + +#[test] +fn first_right_then_left() { + let left: Vec<u32> = vec![4,5,6]; + let right: Vec<u32> = vec![1,2,3]; + let expected_result: Vec<EitherOrBoth<u32, u32>> = vec![ + EitherOrBoth::Right(1), + EitherOrBoth::Right(2), + EitherOrBoth::Right(3), + EitherOrBoth::Left(4), + EitherOrBoth::Left(5), + EitherOrBoth::Left(6) + ]; + let actual_result = merge_join_by(left, right, |l, r| l.cmp(r)) + .collect::<Vec<_>>(); + assert_eq!(expected_result, actual_result); +} + +#[test] +fn interspersed_left_and_right() { + let left: Vec<u32> = vec![1,3,5]; + let right: Vec<u32> = vec![2,4,6]; + let expected_result: Vec<EitherOrBoth<u32, u32>> = vec![ + EitherOrBoth::Left(1), + EitherOrBoth::Right(2), + EitherOrBoth::Left(3), + EitherOrBoth::Right(4), + EitherOrBoth::Left(5), + EitherOrBoth::Right(6) + ]; + let actual_result = merge_join_by(left, right, |l, r| l.cmp(r)) + .collect::<Vec<_>>(); + assert_eq!(expected_result, actual_result); +} + +#[test] +fn overlapping_left_and_right() { + let left: Vec<u32> = vec![1,3,4,6]; + let right: Vec<u32> = vec![2,3,4,5]; + let expected_result: Vec<EitherOrBoth<u32, u32>> = vec![ + EitherOrBoth::Left(1), + EitherOrBoth::Right(2), + EitherOrBoth::Both(3, 3), + EitherOrBoth::Both(4, 4), + EitherOrBoth::Right(5), + EitherOrBoth::Left(6) + ]; + let actual_result = merge_join_by(left, right, |l, r| l.cmp(r)) + .collect::<Vec<_>>(); + assert_eq!(expected_result, actual_result); +} |