t/t4034-diff-words.sh

   1 #!/bin/sh
   2
   3 test_description='word diff colors'
   4
   5 . ./test-lib.sh
   6
   7 test_expect_success setup '
   8
   9         git config diff.color.old red
  10         git config diff.color.new green
  11         git config diff.color.func magenta
  12
  13 '
  14
  15 word_diff () {
  16         test_must_fail git diff --no-index "$@" pre post > output &&
  17         test_decode_color <output >output.decrypted &&
  18         test_cmp expect output.decrypted
  19 }
  20
  21 cat > pre <<\EOF
  22 h(4)
  23
  24 a = b + c
  25 EOF
  26
  27 cat > post <<\EOF
  28 h(4),hh[44]
  29
  30 a = b + c
  31
  32 aa = a
  33
  34 aeff = aeff * ( aaa )
  35 EOF
  36
  37 cat > expect <<\EOF
  38 <BOLD>diff --git a/pre b/post<RESET>
  39 <BOLD>index 330b04f..5ed8eff 100644<RESET>
  40 <BOLD>--- a/pre<RESET>
  41 <BOLD>+++ b/post<RESET>
  42 <CYAN>@@ -1,3 +1,7 @@<RESET>
  43 <RED>h(4)<RESET><GREEN>h(4),hh[44]<RESET>
  44
  45 a = b + c<RESET>
  46
  47 <GREEN>aa = a<RESET>
  48
  49 <GREEN>aeff = aeff * ( aaa )<RESET>
  50 EOF
  51
  52 test_expect_success 'word diff with runs of whitespace' '
  53
  54         word_diff --color-words
  55
  56 '
  57
  58 test_expect_success '--word-diff=color' '
  59
  60         word_diff --word-diff=color
  61
  62 '
  63
  64 test_expect_success '--color --word-diff=color' '
  65
  66         word_diff --color --word-diff=color
  67
  68 '
  69
  70 sed 's/#.*$//' > expect <<EOF
  71 diff --git a/pre b/post
  72 index 330b04f..5ed8eff 100644
  73 --- a/pre
  74 +++ b/post
  75 @@ -1,3 +1,7 @@
  76 -h(4)
  77 +h(4),hh[44]
  78 ~
  79  # significant space
  80 ~
  81  a = b + c
  82 ~
  83 ~
  84 +aa = a
  85 ~
  86 ~
  87 +aeff = aeff * ( aaa )
  88 ~
  89 EOF
  90
  91 test_expect_success '--word-diff=porcelain' '
  92
  93         word_diff --word-diff=porcelain
  94
  95 '
  96
  97 cat > expect <<EOF
  98 diff --git a/pre b/post
  99 index 330b04f..5ed8eff 100644
 100 --- a/pre
 101 +++ b/post
 102 @@ -1,3 +1,7 @@
 103 [-h(4)-]{+h(4),hh[44]+}
 104
 105 a = b + c
 106
 107 {+aa = a+}
 108
 109 {+aeff = aeff * ( aaa )+}
 110 EOF
 111
 112 test_expect_success '--word-diff=plain' '
 113
 114         word_diff --word-diff=plain
 115
 116 '
 117
 118 test_expect_success '--word-diff=plain --no-color' '
 119
 120         word_diff --word-diff=plain --no-color
 121
 122 '
 123
 124 cat > expect <<EOF
 125 <BOLD>diff --git a/pre b/post<RESET>
 126 <BOLD>index 330b04f..5ed8eff 100644<RESET>
 127 <BOLD>--- a/pre<RESET>
 128 <BOLD>+++ b/post<RESET>
 129 <CYAN>@@ -1,3 +1,7 @@<RESET>
 130 <RED>[-h(4)-]<RESET><GREEN>{+h(4),hh[44]+}<RESET>
 131
 132 a = b + c<RESET>
 133
 134 <GREEN>{+aa = a+}<RESET>
 135
 136 <GREEN>{+aeff = aeff * ( aaa )+}<RESET>
 137 EOF
 138
 139 test_expect_success '--word-diff=plain --color' '
 140
 141         word_diff --word-diff=plain --color
 142
 143 '
 144
 145 cat > expect <<\EOF
 146 <BOLD>diff --git a/pre b/post<RESET>
 147 <BOLD>index 330b04f..5ed8eff 100644<RESET>
 148 <BOLD>--- a/pre<RESET>
 149 <BOLD>+++ b/post<RESET>
 150 <CYAN>@@ -1 +1 @@<RESET>
 151 <RED>h(4)<RESET><GREEN>h(4),hh[44]<RESET>
 152 <CYAN>@@ -3,0 +4,4 @@<RESET> <RESET><MAGENTA>a = b + c<RESET>
 153
 154 <GREEN>aa = a<RESET>
 155
 156 <GREEN>aeff = aeff * ( aaa )<RESET>
 157 EOF
 158
 159 test_expect_success 'word diff without context' '
 160
 161         word_diff --color-words --unified=0
 162
 163 '
 164
 165 cat > expect <<\EOF
 166 <BOLD>diff --git a/pre b/post<RESET>
 167 <BOLD>index 330b04f..5ed8eff 100644<RESET>
 168 <BOLD>--- a/pre<RESET>
 169 <BOLD>+++ b/post<RESET>
 170 <CYAN>@@ -1,3 +1,7 @@<RESET>
 171 h(4),<GREEN>hh<RESET>[44]
 172
 173 a = b + c<RESET>
 174
 175 <GREEN>aa = a<RESET>
 176
 177 <GREEN>aeff = aeff * ( aaa<RESET> )
 178 EOF
 179 cp expect expect.letter-runs-are-words
 180
 181 test_expect_success 'word diff with a regular expression' '
 182
 183         word_diff --color-words="[a-z]+"
 184
 185 '
 186
 187 test_expect_success 'set a diff driver' '
 188         git config diff.testdriver.wordRegex "[^[:space:]]" &&
 189         cat <<EOF > .gitattributes
 190 pre diff=testdriver
 191 post diff=testdriver
 192 EOF
 193 '
 194
 195 test_expect_success 'option overrides .gitattributes' '
 196
 197         word_diff --color-words="[a-z]+"
 198
 199 '
 200
 201 cat > expect <<\EOF
 202 <BOLD>diff --git a/pre b/post<RESET>
 203 <BOLD>index 330b04f..5ed8eff 100644<RESET>
 204 <BOLD>--- a/pre<RESET>
 205 <BOLD>+++ b/post<RESET>
 206 <CYAN>@@ -1,3 +1,7 @@<RESET>
 207 h(4)<GREEN>,hh[44]<RESET>
 208
 209 a = b + c<RESET>
 210
 211 <GREEN>aa = a<RESET>
 212
 213 <GREEN>aeff = aeff * ( aaa )<RESET>
 214 EOF
 215 cp expect expect.non-whitespace-is-word
 216
 217 test_expect_success 'use regex supplied by driver' '
 218
 219         word_diff --color-words
 220
 221 '
 222
 223 test_expect_success 'set diff.wordRegex option' '
 224         git config diff.wordRegex "[[:alnum:]]+"
 225 '
 226
 227 cp expect.letter-runs-are-words expect
 228
 229 test_expect_success 'command-line overrides config' '
 230         word_diff --color-words="[a-z]+"
 231 '
 232
 233 cat > expect <<\EOF
 234 <BOLD>diff --git a/pre b/post<RESET>
 235 <BOLD>index 330b04f..5ed8eff 100644<RESET>
 236 <BOLD>--- a/pre<RESET>
 237 <BOLD>+++ b/post<RESET>
 238 <CYAN>@@ -1,3 +1,7 @@<RESET>
 239 h(4),<GREEN>{+hh+}<RESET>[44]
 240
 241 a = b + c<RESET>
 242
 243 <GREEN>{+aa = a+}<RESET>
 244
 245 <GREEN>{+aeff = aeff * ( aaa+}<RESET> )
 246 EOF
 247
 248 test_expect_success 'command-line overrides config: --word-diff-regex' '
 249         word_diff --color --word-diff-regex="[a-z]+"
 250 '
 251
 252 cp expect.non-whitespace-is-word expect
 253
 254 test_expect_success '.gitattributes override config' '
 255         word_diff --color-words
 256 '
 257
 258 test_expect_success 'remove diff driver regex' '
 259         git config --unset diff.testdriver.wordRegex
 260 '
 261
 262 cat > expect <<\EOF
 263 <BOLD>diff --git a/pre b/post<RESET>
 264 <BOLD>index 330b04f..5ed8eff 100644<RESET>
 265 <BOLD>--- a/pre<RESET>
 266 <BOLD>+++ b/post<RESET>
 267 <CYAN>@@ -1,3 +1,7 @@<RESET>
 268 h(4),<GREEN>hh[44<RESET>]
 269
 270 a = b + c<RESET>
 271
 272 <GREEN>aa = a<RESET>
 273
 274 <GREEN>aeff = aeff * ( aaa<RESET> )
 275 EOF
 276
 277 test_expect_success 'use configured regex' '
 278         word_diff --color-words
 279 '
 280
 281 echo 'aaa (aaa)' > pre
 282 echo 'aaa (aaa) aaa' > post
 283
 284 cat > expect <<\EOF
 285 <BOLD>diff --git a/pre b/post<RESET>
 286 <BOLD>index c29453b..be22f37 100644<RESET>
 287 <BOLD>--- a/pre<RESET>
 288 <BOLD>+++ b/post<RESET>
 289 <CYAN>@@ -1 +1 @@<RESET>
 290 aaa (aaa) <GREEN>aaa<RESET>
 291 EOF
 292
 293 test_expect_success 'test parsing words for newline' '
 294
 295         word_diff --color-words="a+"
 296
 297
 298 '
 299
 300 echo '(:' > pre
 301 echo '(' > post
 302
 303 cat > expect <<\EOF
 304 <BOLD>diff --git a/pre b/post<RESET>
 305 <BOLD>index 289cb9d..2d06f37 100644<RESET>
 306 <BOLD>--- a/pre<RESET>
 307 <BOLD>+++ b/post<RESET>
 308 <CYAN>@@ -1 +1 @@<RESET>
 309 (<RED>:<RESET>
 310 EOF
 311
 312 test_expect_success 'test when words are only removed at the end' '
 313
 314         word_diff --color-words=.
 315
 316 '
 317
 318 cat > expect <<\EOF
 319 diff --git a/pre b/post
 320 index 289cb9d..2d06f37 100644
 321 --- a/pre
 322 +++ b/post
 323 @@ -1 +1 @@
 324 -(:
 325 +(
 326 EOF
 327
 328 test_expect_success '--word-diff=none' '
 329
 330         word_diff --word-diff=plain --word-diff=none
 331
 332 '
 333
 334 test_done