t/t4034-diff-words.sh

   1 #!/bin/sh
   2
   3 test_description='word diff colors'
   4
   5 . ./test-lib.sh
   6
   7 cat >pre.simple <<-\EOF
   8         h(4)
   9
  10         a = b + c
  11 EOF
  12 cat >post.simple <<-\EOF
  13         h(4),hh[44]
  14
  15         a = b + c
  16
  17         aa = a
  18
  19         aeff = aeff * ( aaa )
  20 EOF
  21 cat >expect.letter-runs-are-words <<-\EOF
  22         <BOLD>diff --git a/pre b/post<RESET>
  23         <BOLD>index 330b04f..5ed8eff 100644<RESET>
  24         <BOLD>--- a/pre<RESET>
  25         <BOLD>+++ b/post<RESET>
  26         <CYAN>@@ -1,3 +1,7 @@<RESET>
  27         h(4),<GREEN>hh<RESET>[44]
  28
  29         a = b + c<RESET>
  30
  31         <GREEN>aa = a<RESET>
  32
  33         <GREEN>aeff = aeff * ( aaa<RESET> )
  34 EOF
  35 cat >expect.non-whitespace-is-word <<-\EOF
  36         <BOLD>diff --git a/pre b/post<RESET>
  37         <BOLD>index 330b04f..5ed8eff 100644<RESET>
  38         <BOLD>--- a/pre<RESET>
  39         <BOLD>+++ b/post<RESET>
  40         <CYAN>@@ -1,3 +1,7 @@<RESET>
  41         h(4)<GREEN>,hh[44]<RESET>
  42
  43         a = b + c<RESET>
  44
  45         <GREEN>aa = a<RESET>
  46
  47         <GREEN>aeff = aeff * ( aaa )<RESET>
  48 EOF
  49
  50 word_diff () {
  51         test_must_fail git diff --no-index "$@" pre post >output &&
  52         test_decode_color <output >output.decrypted &&
  53         test_cmp expect output.decrypted
  54 }
  55
  56 test_language_driver () {
  57         lang=$1
  58         test_expect_success "diff driver '$lang'" '
  59                 cp "$TEST_DIRECTORY/t4034/'"$lang"'/pre" \
  60                         "$TEST_DIRECTORY/t4034/'"$lang"'/post" \
  61                         "$TEST_DIRECTORY/t4034/'"$lang"'/expect" . &&
  62                 echo "* diff='"$lang"'" >.gitattributes &&
  63                 word_diff --color-words
  64         '
  65 }
  66
  67 test_expect_success setup '
  68         git config diff.color.old red &&
  69         git config diff.color.new green &&
  70         git config diff.color.func magenta
  71 '
  72
  73 test_expect_success 'set up pre and post with runs of whitespace' '
  74         cp pre.simple pre &&
  75         cp post.simple post
  76 '
  77
  78 test_expect_success 'word diff with runs of whitespace' '
  79         cat >expect <<-\EOF &&
  80                 <BOLD>diff --git a/pre b/post<RESET>
  81                 <BOLD>index 330b04f..5ed8eff 100644<RESET>
  82                 <BOLD>--- a/pre<RESET>
  83                 <BOLD>+++ b/post<RESET>
  84                 <CYAN>@@ -1,3 +1,7 @@<RESET>
  85                 <RED>h(4)<RESET><GREEN>h(4),hh[44]<RESET>
  86
  87                 a = b + c<RESET>
  88
  89                 <GREEN>aa = a<RESET>
  90
  91                 <GREEN>aeff = aeff * ( aaa )<RESET>
  92         EOF
  93         word_diff --color-words &&
  94         word_diff --word-diff=color &&
  95         word_diff --color --word-diff=color
  96 '
  97
  98 test_expect_success '--word-diff=porcelain' '
  99         sed 's/#.*$//' >expect <<-\EOF &&
 100                 diff --git a/pre b/post
 101                 index 330b04f..5ed8eff 100644
 102                 --- a/pre
 103                 +++ b/post
 104                 @@ -1,3 +1,7 @@
 105                 -h(4)
 106                 +h(4),hh[44]
 107                 ~
 108                  # significant space
 109                 ~
 110                  a = b + c
 111                 ~
 112                 ~
 113                 +aa = a
 114                 ~
 115                 ~
 116                 +aeff = aeff * ( aaa )
 117                 ~
 118         EOF
 119         word_diff --word-diff=porcelain
 120 '
 121
 122 test_expect_success '--word-diff=plain' '
 123         cat >expect <<-\EOF &&
 124                 diff --git a/pre b/post
 125                 index 330b04f..5ed8eff 100644
 126                 --- a/pre
 127                 +++ b/post
 128                 @@ -1,3 +1,7 @@
 129                 [-h(4)-]{+h(4),hh[44]+}
 130
 131                 a = b + c
 132
 133                 {+aa = a+}
 134
 135                 {+aeff = aeff * ( aaa )+}
 136         EOF
 137         word_diff --word-diff=plain &&
 138         word_diff --word-diff=plain --no-color
 139 '
 140
 141 test_expect_success '--word-diff=plain --color' '
 142         cat >expect <<-\EOF &&
 143                 <BOLD>diff --git a/pre b/post<RESET>
 144                 <BOLD>index 330b04f..5ed8eff 100644<RESET>
 145                 <BOLD>--- a/pre<RESET>
 146                 <BOLD>+++ b/post<RESET>
 147                 <CYAN>@@ -1,3 +1,7 @@<RESET>
 148                 <RED>[-h(4)-]<RESET><GREEN>{+h(4),hh[44]+}<RESET>
 149
 150                 a = b + c<RESET>
 151
 152                 <GREEN>{+aa = a+}<RESET>
 153
 154                 <GREEN>{+aeff = aeff * ( aaa )+}<RESET>
 155         EOF
 156         word_diff --word-diff=plain --color
 157 '
 158
 159 test_expect_success 'word diff without context' '
 160         cat >expect <<-\EOF &&
 161                 <BOLD>diff --git a/pre b/post<RESET>
 162                 <BOLD>index 330b04f..5ed8eff 100644<RESET>
 163                 <BOLD>--- a/pre<RESET>
 164                 <BOLD>+++ b/post<RESET>
 165                 <CYAN>@@ -1 +1 @@<RESET>
 166                 <RED>h(4)<RESET><GREEN>h(4),hh[44]<RESET>
 167                 <CYAN>@@ -3,0 +4,4 @@<RESET> <RESET><MAGENTA>a = b + c<RESET>
 168
 169                 <GREEN>aa = a<RESET>
 170
 171                 <GREEN>aeff = aeff * ( aaa )<RESET>
 172         EOF
 173         word_diff --color-words --unified=0
 174 '
 175
 176 test_expect_success 'word diff with a regular expression' '
 177         cp expect.letter-runs-are-words expect &&
 178         word_diff --color-words="[a-z]+"
 179 '
 180
 181 test_expect_success 'set up a diff driver' '
 182         git config diff.testdriver.wordRegex "[^[:space:]]" &&
 183         cat <<-\EOF >.gitattributes
 184                 pre diff=testdriver
 185                 post diff=testdriver
 186         EOF
 187 '
 188
 189 test_expect_success 'option overrides .gitattributes' '
 190         cp expect.letter-runs-are-words expect &&
 191         word_diff --color-words="[a-z]+"
 192 '
 193
 194 test_expect_success 'use regex supplied by driver' '
 195         cp expect.non-whitespace-is-word expect &&
 196         word_diff --color-words
 197 '
 198
 199 test_expect_success 'set up diff.wordRegex option' '
 200         git config diff.wordRegex "[[:alnum:]]+"
 201 '
 202
 203 test_expect_success 'command-line overrides config' '
 204         cp expect.letter-runs-are-words expect &&
 205         word_diff --color-words="[a-z]+"
 206 '
 207
 208 test_expect_success 'command-line overrides config: --word-diff-regex' '
 209         cat >expect <<-\EOF &&
 210                 <BOLD>diff --git a/pre b/post<RESET>
 211                 <BOLD>index 330b04f..5ed8eff 100644<RESET>
 212                 <BOLD>--- a/pre<RESET>
 213                 <BOLD>+++ b/post<RESET>
 214                 <CYAN>@@ -1,3 +1,7 @@<RESET>
 215                 h(4),<GREEN>{+hh+}<RESET>[44]
 216
 217                 a = b + c<RESET>
 218
 219                 <GREEN>{+aa = a+}<RESET>
 220
 221                 <GREEN>{+aeff = aeff * ( aaa+}<RESET> )
 222         EOF
 223         word_diff --color --word-diff-regex="[a-z]+"
 224 '
 225
 226 test_expect_success '.gitattributes override config' '
 227         cp expect.non-whitespace-is-word expect &&
 228         word_diff --color-words
 229 '
 230
 231 test_expect_success 'setup: remove diff driver regex' '
 232         test_might_fail git config --unset diff.testdriver.wordRegex
 233 '
 234
 235 test_expect_success 'use configured regex' '
 236         cat >expect <<-\EOF &&
 237                 <BOLD>diff --git a/pre b/post<RESET>
 238                 <BOLD>index 330b04f..5ed8eff 100644<RESET>
 239                 <BOLD>--- a/pre<RESET>
 240                 <BOLD>+++ b/post<RESET>
 241                 <CYAN>@@ -1,3 +1,7 @@<RESET>
 242                 h(4),<GREEN>hh[44<RESET>]
 243
 244                 a = b + c<RESET>
 245
 246                 <GREEN>aa = a<RESET>
 247
 248                 <GREEN>aeff = aeff * ( aaa<RESET> )
 249         EOF
 250         word_diff --color-words
 251 '
 252
 253 test_expect_success 'test parsing words for newline' '
 254         echo "aaa (aaa)" >pre &&
 255         echo "aaa (aaa) aaa" >post &&
 256         cat >expect <<-\EOF &&
 257                 <BOLD>diff --git a/pre b/post<RESET>
 258                 <BOLD>index c29453b..be22f37 100644<RESET>
 259                 <BOLD>--- a/pre<RESET>
 260                 <BOLD>+++ b/post<RESET>
 261                 <CYAN>@@ -1 +1 @@<RESET>
 262                 aaa (aaa) <GREEN>aaa<RESET>
 263         EOF
 264         word_diff --color-words="a+"
 265 '
 266
 267 test_expect_success 'test when words are only removed at the end' '
 268         echo "(:" >pre &&
 269         echo "(" >post &&
 270         cat >expect <<-\EOF &&
 271                 <BOLD>diff --git a/pre b/post<RESET>
 272                 <BOLD>index 289cb9d..2d06f37 100644<RESET>
 273                 <BOLD>--- a/pre<RESET>
 274                 <BOLD>+++ b/post<RESET>
 275                 <CYAN>@@ -1 +1 @@<RESET>
 276                 (<RED>:<RESET>
 277         EOF
 278         word_diff --color-words=.
 279 '
 280
 281 test_expect_success '--word-diff=none' '
 282         echo "(:" >pre &&
 283         echo "(" >post &&
 284         cat >expect <<-\EOF &&
 285                 diff --git a/pre b/post
 286                 index 289cb9d..2d06f37 100644
 287                 --- a/pre
 288                 +++ b/post
 289                 @@ -1 +1 @@
 290                 -(:
 291                 +(
 292         EOF
 293         word_diff --word-diff=plain --word-diff=none
 294 '
 295
 296 test_language_driver bibtex
 297 test_language_driver cpp
 298 test_language_driver csharp
 299 test_language_driver fortran
 300 test_language_driver html
 301 test_language_driver java
 302 test_language_driver matlab
 303 test_language_driver objc
 304 test_language_driver pascal
 305 test_language_driver perl
 306 test_language_driver php
 307 test_language_driver python
 308 test_language_driver ruby
 309 test_language_driver tex
 310
 311 test_expect_success 'word-diff with diff.sbe' '
 312         cat >expect <<-\EOF &&
 313         diff --git a/pre b/post
 314         index a1a53b5..bc8fe6d 100644
 315         --- a/pre
 316         +++ b/post
 317         @@ -1,3 +1,3 @@
 318         a
 319
 320         [-b-]{+c+}
 321         EOF
 322         cat >pre <<-\EOF &&
 323         a
 324
 325         b
 326         EOF
 327         cat >post <<-\EOF &&
 328         a
 329
 330         c
 331         EOF
 332         test_when_finished "git config --unset diff.suppress-blank-empty" &&
 333         git config diff.suppress-blank-empty true &&
 334         word_diff --word-diff=plain
 335 '
 336
 337 test_expect_success 'word-diff with no newline at EOF' '
 338         cat >expect <<-\EOF &&
 339         diff --git a/pre b/post
 340         index 7bf316e..3dd0303 100644
 341         --- a/pre
 342         +++ b/post
 343         @@ -1 +1 @@
 344         a a [-a-]{+ab+} a a
 345         EOF
 346         printf "%s" "a a a a a" >pre &&
 347         printf "%s" "a a ab a a" >post &&
 348         word_diff --word-diff=plain
 349 '
 350
 351 test_done