| 1 | #!/bin/sh |
| 2 | |
| 3 | test_description='git blame with specific diff algorithm' |
| 4 | |
| 5 | . ./test-lib.sh |
| 6 | |
| 7 | test_expect_success setup ' |
| 8 | cat >file.c <<-\EOF && |
| 9 | int f(int x, int y) |
| 10 | { |
| 11 | if (x == 0) |
| 12 | { |
| 13 | return y; |
| 14 | } |
| 15 | return x; |
| 16 | } |
| 17 | |
| 18 | int g(size_t u) |
| 19 | { |
| 20 | while (u < 30) |
| 21 | { |
| 22 | u++; |
| 23 | } |
| 24 | return u; |
| 25 | } |
| 26 | EOF |
| 27 | test_write_lines x x x x >file.txt && |
| 28 | git add file.c file.txt && |
| 29 | GIT_AUTHOR_NAME=Commit_1 git commit -m Commit_1 && |
| 30 | |
| 31 | cat >file.c <<-\EOF && |
| 32 | int g(size_t u) |
| 33 | { |
| 34 | while (u < 30) |
| 35 | { |
| 36 | u++; |
| 37 | } |
| 38 | return u; |
| 39 | } |
| 40 | |
| 41 | int h(int x, int y, int z) |
| 42 | { |
| 43 | if (z == 0) |
| 44 | { |
| 45 | return x; |
| 46 | } |
| 47 | return y; |
| 48 | } |
| 49 | EOF |
| 50 | test_write_lines x x x A B C D x E F G >file.txt && |
| 51 | git add file.c file.txt && |
| 52 | GIT_AUTHOR_NAME=Commit_2 git commit -m Commit_2 |
| 53 | ' |
| 54 | |
| 55 | test_expect_success 'blame uses Myers diff algorithm by default' ' |
| 56 | cat >expected <<-\EOF && |
| 57 | Commit_2 int g(size_t u) |
| 58 | Commit_1 { |
| 59 | Commit_2 while (u < 30) |
| 60 | Commit_1 { |
| 61 | Commit_2 u++; |
| 62 | Commit_1 } |
| 63 | Commit_2 return u; |
| 64 | Commit_1 } |
| 65 | Commit_1 |
| 66 | Commit_2 int h(int x, int y, int z) |
| 67 | Commit_1 { |
| 68 | Commit_2 if (z == 0) |
| 69 | Commit_1 { |
| 70 | Commit_2 return x; |
| 71 | Commit_1 } |
| 72 | Commit_2 return y; |
| 73 | Commit_1 } |
| 74 | EOF |
| 75 | |
| 76 | git blame file.c >output && |
| 77 | sed -e "s/^[^ ]* (\([^ ]*\) [^)]*)/\1/g" output >without_varying_parts && |
| 78 | sed -e "s/ *$//g" without_varying_parts >actual && |
| 79 | test_cmp expected actual |
| 80 | ' |
| 81 | |
| 82 | test_expect_success 'blame honors --diff-algorithm option' ' |
| 83 | cat >expected <<-\EOF && |
| 84 | Commit_1 int g(size_t u) |
| 85 | Commit_1 { |
| 86 | Commit_1 while (u < 30) |
| 87 | Commit_1 { |
| 88 | Commit_1 u++; |
| 89 | Commit_1 } |
| 90 | Commit_1 return u; |
| 91 | Commit_1 } |
| 92 | Commit_2 |
| 93 | Commit_2 int h(int x, int y, int z) |
| 94 | Commit_2 { |
| 95 | Commit_2 if (z == 0) |
| 96 | Commit_2 { |
| 97 | Commit_2 return x; |
| 98 | Commit_2 } |
| 99 | Commit_2 return y; |
| 100 | Commit_2 } |
| 101 | EOF |
| 102 | |
| 103 | git blame file.c --diff-algorithm histogram >output && |
| 104 | sed -e "s/^[^ ]* (\([^ ]*\) [^)]*)/\1/g" output >without_varying_parts && |
| 105 | sed -e "s/ *$//g" without_varying_parts >actual && |
| 106 | test_cmp expected actual |
| 107 | ' |
| 108 | |
| 109 | test_expect_success 'blame honors diff.algorithm config variable' ' |
| 110 | cat >expected <<-\EOF && |
| 111 | Commit_1 int g(size_t u) |
| 112 | Commit_1 { |
| 113 | Commit_1 while (u < 30) |
| 114 | Commit_1 { |
| 115 | Commit_1 u++; |
| 116 | Commit_1 } |
| 117 | Commit_1 return u; |
| 118 | Commit_1 } |
| 119 | Commit_2 |
| 120 | Commit_2 int h(int x, int y, int z) |
| 121 | Commit_2 { |
| 122 | Commit_2 if (z == 0) |
| 123 | Commit_2 { |
| 124 | Commit_2 return x; |
| 125 | Commit_2 } |
| 126 | Commit_2 return y; |
| 127 | Commit_2 } |
| 128 | EOF |
| 129 | |
| 130 | git -c diff.algorithm=histogram blame file.c >output && |
| 131 | sed -e "s/^[^ ]* (\([^ ]*\) [^)]*)/\1/g" \ |
| 132 | -e "s/ *$//g" output >actual && |
| 133 | test_cmp expected actual |
| 134 | ' |
| 135 | |
| 136 | test_expect_success 'blame gives priority to --diff-algorithm over diff.algorithm' ' |
| 137 | cat >expected <<-\EOF && |
| 138 | Commit_1 int g(size_t u) |
| 139 | Commit_1 { |
| 140 | Commit_1 while (u < 30) |
| 141 | Commit_1 { |
| 142 | Commit_1 u++; |
| 143 | Commit_1 } |
| 144 | Commit_1 return u; |
| 145 | Commit_1 } |
| 146 | Commit_2 |
| 147 | Commit_2 int h(int x, int y, int z) |
| 148 | Commit_2 { |
| 149 | Commit_2 if (z == 0) |
| 150 | Commit_2 { |
| 151 | Commit_2 return x; |
| 152 | Commit_2 } |
| 153 | Commit_2 return y; |
| 154 | Commit_2 } |
| 155 | EOF |
| 156 | |
| 157 | git -c diff.algorithm=myers blame file.c --diff-algorithm histogram >output && |
| 158 | sed -e "s/^[^ ]* (\([^ ]*\) [^)]*)/\1/g" \ |
| 159 | -e "s/ *$//g" output >actual && |
| 160 | test_cmp expected actual |
| 161 | ' |
| 162 | |
| 163 | test_expect_success 'blame honors --minimal option' ' |
| 164 | cat >expected <<-\EOF && |
| 165 | Commit_1 x |
| 166 | Commit_1 x |
| 167 | Commit_1 x |
| 168 | Commit_2 A |
| 169 | Commit_2 B |
| 170 | Commit_2 C |
| 171 | Commit_2 D |
| 172 | Commit_1 x |
| 173 | Commit_2 E |
| 174 | Commit_2 F |
| 175 | Commit_2 G |
| 176 | EOF |
| 177 | |
| 178 | git blame file.txt --minimal >output && |
| 179 | sed -e "s/^[^ ]* (\([^ ]*\) [^)]*)/\1/g" output >actual && |
| 180 | test_cmp expected actual |
| 181 | ' |
| 182 | |
| 183 | test_expect_success 'blame respects the order of diff options' ' |
| 184 | cat >expected <<-\EOF && |
| 185 | Commit_1 x |
| 186 | Commit_1 x |
| 187 | Commit_1 x |
| 188 | Commit_2 A |
| 189 | Commit_2 B |
| 190 | Commit_2 C |
| 191 | Commit_2 D |
| 192 | Commit_2 x |
| 193 | Commit_2 E |
| 194 | Commit_2 F |
| 195 | Commit_2 G |
| 196 | EOF |
| 197 | |
| 198 | git blame file.txt --minimal --diff-algorithm myers >output && |
| 199 | sed -e "s/^[^ ]* (\([^ ]*\) [^)]*)/\1/g" output >actual && |
| 200 | test_cmp expected actual |
| 201 | ' |
| 202 | |
| 203 | test_done |