projects / rustc.git / blame
| Commit | Line | Data |
|---|---|---|
| 532ac7d7 XL |
1 | extern crate itertools; |
| 2 | ||
| 3 | use itertools::EitherOrBoth; | |
| 4 | use itertools::free::merge_join_by; | |
| 5 | ||
| 6 | #[test] | |
| 7 | fn empty() { | |
| 8 | let left: Vec<u32> = vec![]; | |
| 9 | let right: Vec<u32> = vec![]; | |
| 10 | let expected_result: Vec<EitherOrBoth<u32, u32>> = vec![]; | |
| 11 | let actual_result = merge_join_by(left, right, |l, r| l.cmp(r)) | |
| 12 | .collect::<Vec<_>>(); | |
| 13 | assert_eq!(expected_result, actual_result); | |
| 14 | } | |
| 15 | ||
| 16 | #[test] | |
| 17 | fn left_only() { | |
| 18 | let left: Vec<u32> = vec![1,2,3]; | |
| 19 | let right: Vec<u32> = vec![]; | |
| 20 | let expected_result: Vec<EitherOrBoth<u32, u32>> = vec![ | |
| 21 | EitherOrBoth::Left(1), | |
| 22 | EitherOrBoth::Left(2), | |
| 23 | EitherOrBoth::Left(3) | |
| 24 | ]; | |
| 25 | let actual_result = merge_join_by(left, right, |l, r| l.cmp(r)) | |
| 26 | .collect::<Vec<_>>(); | |
| 27 | assert_eq!(expected_result, actual_result); | |
| 28 | } | |
| 29 | ||
| 30 | #[test] | |
| 31 | fn right_only() { | |
| 32 | let left: Vec<u32> = vec![]; | |
| 33 | let right: Vec<u32> = vec![1,2,3]; | |
| 34 | let expected_result: Vec<EitherOrBoth<u32, u32>> = vec![ | |
| 35 | EitherOrBoth::Right(1), | |
| 36 | EitherOrBoth::Right(2), | |
| 37 | EitherOrBoth::Right(3) | |
| 38 | ]; | |
| 39 | let actual_result = merge_join_by(left, right, |l, r| l.cmp(r)) | |
| 40 | .collect::<Vec<_>>(); | |
| 41 | assert_eq!(expected_result, actual_result); | |
| 42 | } | |
| 43 | ||
| 44 | #[test] | |
| 45 | fn first_left_then_right() { | |
| 46 | let left: Vec<u32> = vec![1,2,3]; | |
| 47 | let right: Vec<u32> = vec![4,5,6]; | |
| 48 | let expected_result: Vec<EitherOrBoth<u32, u32>> = vec![ | |
| 49 | EitherOrBoth::Left(1), | |
| 50 | EitherOrBoth::Left(2), | |
| 51 | EitherOrBoth::Left(3), | |
| 52 | EitherOrBoth::Right(4), | |
| 53 | EitherOrBoth::Right(5), | |
| 54 | EitherOrBoth::Right(6) | |
| 55 | ]; | |
| 56 | let actual_result = merge_join_by(left, right, |l, r| l.cmp(r)) | |
| 57 | .collect::<Vec<_>>(); | |
| 58 | assert_eq!(expected_result, actual_result); | |
| 59 | } | |
| 60 | ||
| 61 | #[test] | |
| 62 | fn first_right_then_left() { | |
| 63 | let left: Vec<u32> = vec![4,5,6]; | |
| 64 | let right: Vec<u32> = vec![1,2,3]; | |
| 65 | let expected_result: Vec<EitherOrBoth<u32, u32>> = vec![ | |
| 66 | EitherOrBoth::Right(1), | |
| 67 | EitherOrBoth::Right(2), | |
| 68 | EitherOrBoth::Right(3), | |
| 69 | EitherOrBoth::Left(4), | |
| 70 | EitherOrBoth::Left(5), | |
| 71 | EitherOrBoth::Left(6) | |
| 72 | ]; | |
| 73 | let actual_result = merge_join_by(left, right, |l, r| l.cmp(r)) | |
| 74 | .collect::<Vec<_>>(); | |
| 75 | assert_eq!(expected_result, actual_result); | |
| 76 | } | |
| 77 | ||
| 78 | #[test] | |
| 79 | fn interspersed_left_and_right() { | |
| 80 | let left: Vec<u32> = vec![1,3,5]; | |
| 81 | let right: Vec<u32> = vec![2,4,6]; | |
| 82 | let expected_result: Vec<EitherOrBoth<u32, u32>> = vec![ | |
| 83 | EitherOrBoth::Left(1), | |
| 84 | EitherOrBoth::Right(2), | |
| 85 | EitherOrBoth::Left(3), | |
| 86 | EitherOrBoth::Right(4), | |
| 87 | EitherOrBoth::Left(5), | |
| 88 | EitherOrBoth::Right(6) | |
| 89 | ]; | |
| 90 | let actual_result = merge_join_by(left, right, |l, r| l.cmp(r)) | |
| 91 | .collect::<Vec<_>>(); | |
| 92 | assert_eq!(expected_result, actual_result); | |
| 93 | } | |
| 94 | ||
| 95 | #[test] | |
| 96 | fn overlapping_left_and_right() { | |
| 97 | let left: Vec<u32> = vec![1,3,4,6]; | |
| 98 | let right: Vec<u32> = vec![2,3,4,5]; | |
| 99 | let expected_result: Vec<EitherOrBoth<u32, u32>> = vec![ | |
| 100 | EitherOrBoth::Left(1), | |
| 101 | EitherOrBoth::Right(2), | |
| 102 | EitherOrBoth::Both(3, 3), | |
| 103 | EitherOrBoth::Both(4, 4), | |
| 104 | EitherOrBoth::Right(5), | |
| 105 | EitherOrBoth::Left(6) | |
| 106 | ]; | |
| 107 | let actual_result = merge_join_by(left, right, |l, r| l.cmp(r)) | |
| 108 | .collect::<Vec<_>>(); | |
| 109 | assert_eq!(expected_result, actual_result); | |
| 110 | } |