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 decrypt_color () {
  16         sed \
  17                 -e 's/.\[1m/<WHITE>/g' \
  18                 -e 's/.\[31m/<RED>/g' \
  19                 -e 's/.\[32m/<GREEN>/g' \
  20                 -e 's/.\[35m/<MAGENTA>/g' \
  21                 -e 's/.\[36m/<BROWN>/g' \
  22                 -e 's/.\[m/<RESET>/g'
  23 }
  24
  25 word_diff () {
  26         test_must_fail git diff --no-index "$@" pre post > output &&
  27         decrypt_color < output > output.decrypted &&
  28         test_cmp expect output.decrypted
  29 }
  30
  31 cat > pre <<\EOF
  32 h(4)
  33
  34 a = b + c
  35 EOF
  36
  37 cat > post <<\EOF
  38 h(4),hh[44]
  39
  40 a = b + c
  41
  42 aa = a
  43
  44 aeff = aeff * ( aaa )
  45 EOF
  46
  47 cat > expect <<\EOF
  48 <WHITE>diff --git a/pre b/post<RESET>
  49 <WHITE>index 330b04f..5ed8eff 100644<RESET>
  50 <WHITE>--- a/pre<RESET>
  51 <WHITE>+++ b/post<RESET>
  52 <BROWN>@@ -1,3 +1,7 @@<RESET>
  53 <RED>h(4)<RESET><GREEN>h(4),hh[44]<RESET>
  54
  55 a = b + c<RESET>
  56
  57 <GREEN>aa = a<RESET>
  58
  59 <GREEN>aeff = aeff * ( aaa )<RESET>
  60 EOF
  61
  62 test_expect_success 'word diff with runs of whitespace' '
  63
  64         word_diff --color-words
  65
  66 '
  67
  68 cat > expect <<\EOF
  69 <WHITE>diff --git a/pre b/post<RESET>
  70 <WHITE>index 330b04f..5ed8eff 100644<RESET>
  71 <WHITE>--- a/pre<RESET>
  72 <WHITE>+++ b/post<RESET>
  73 <BROWN>@@ -1 +1 @@<RESET>
  74 <RED>h(4)<RESET><GREEN>h(4),hh[44]<RESET>
  75 <BROWN>@@ -3,0 +4,4 @@<RESET> <RESET><MAGENTA>a = b + c<RESET>
  76
  77 <GREEN>aa = a<RESET>
  78
  79 <GREEN>aeff = aeff * ( aaa )<RESET>
  80 EOF
  81
  82 test_expect_success 'word diff without context' '
  83
  84         word_diff --color-words --unified=0
  85
  86 '
  87
  88 cat > expect <<\EOF
  89 <WHITE>diff --git a/pre b/post<RESET>
  90 <WHITE>index 330b04f..5ed8eff 100644<RESET>
  91 <WHITE>--- a/pre<RESET>
  92 <WHITE>+++ b/post<RESET>
  93 <BROWN>@@ -1,3 +1,7 @@<RESET>
  94 h(4),<GREEN>hh<RESET>[44]
  95
  96 a = b + c<RESET>
  97
  98 <GREEN>aa = a<RESET>
  99
 100 <GREEN>aeff = aeff * ( aaa<RESET> )
 101 EOF
 102 cp expect expect.letter-runs-are-words
 103
 104 test_expect_success 'word diff with a regular expression' '
 105
 106         word_diff --color-words="[a-z]+"
 107
 108 '
 109
 110 test_expect_success 'set a diff driver' '
 111         git config diff.testdriver.wordRegex "[^[:space:]]" &&
 112         cat <<EOF > .gitattributes
 113 pre diff=testdriver
 114 post diff=testdriver
 115 EOF
 116 '
 117
 118 test_expect_success 'option overrides .gitattributes' '
 119
 120         word_diff --color-words="[a-z]+"
 121
 122 '
 123
 124 cat > expect <<\EOF
 125 <WHITE>diff --git a/pre b/post<RESET>
 126 <WHITE>index 330b04f..5ed8eff 100644<RESET>
 127 <WHITE>--- a/pre<RESET>
 128 <WHITE>+++ b/post<RESET>
 129 <BROWN>@@ -1,3 +1,7 @@<RESET>
 130 h(4)<GREEN>,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 cp expect expect.non-whitespace-is-word
 139
 140 test_expect_success 'use regex supplied by driver' '
 141
 142         word_diff --color-words
 143
 144 '
 145
 146 test_expect_success 'set diff.wordRegex option' '
 147         git config diff.wordRegex "[[:alnum:]]+"
 148 '
 149
 150 cp expect.letter-runs-are-words expect
 151
 152 test_expect_success 'command-line overrides config' '
 153         word_diff --color-words="[a-z]+"
 154 '
 155
 156 cp expect.non-whitespace-is-word expect
 157
 158 test_expect_success '.gitattributes override config' '
 159         word_diff --color-words
 160 '
 161
 162 test_expect_success 'remove diff driver regex' '
 163         git config --unset diff.testdriver.wordRegex
 164 '
 165
 166 cat > expect <<\EOF
 167 <WHITE>diff --git a/pre b/post<RESET>
 168 <WHITE>index 330b04f..5ed8eff 100644<RESET>
 169 <WHITE>--- a/pre<RESET>
 170 <WHITE>+++ b/post<RESET>
 171 <BROWN>@@ -1,3 +1,7 @@<RESET>
 172 h(4),<GREEN>hh[44<RESET>]
 173
 174 a = b + c<RESET>
 175
 176 <GREEN>aa = a<RESET>
 177
 178 <GREEN>aeff = aeff * ( aaa<RESET> )
 179 EOF
 180
 181 test_expect_success 'use configured regex' '
 182         word_diff --color-words
 183 '
 184
 185 echo 'aaa (aaa)' > pre
 186 echo 'aaa (aaa) aaa' > post
 187
 188 cat > expect <<\EOF
 189 <WHITE>diff --git a/pre b/post<RESET>
 190 <WHITE>index c29453b..be22f37 100644<RESET>
 191 <WHITE>--- a/pre<RESET>
 192 <WHITE>+++ b/post<RESET>
 193 <BROWN>@@ -1 +1 @@<RESET>
 194 aaa (aaa) <GREEN>aaa<RESET>
 195 EOF
 196
 197 test_expect_success 'test parsing words for newline' '
 198
 199         word_diff --color-words="a+"
 200
 201
 202 '
 203
 204 echo '(:' > pre
 205 echo '(' > post
 206
 207 cat > expect <<\EOF
 208 <WHITE>diff --git a/pre b/post<RESET>
 209 <WHITE>index 289cb9d..2d06f37 100644<RESET>
 210 <WHITE>--- a/pre<RESET>
 211 <WHITE>+++ b/post<RESET>
 212 <BROWN>@@ -1 +1 @@<RESET>
 213 (<RED>:<RESET>
 214 EOF
 215
 216 test_expect_success 'test when words are only removed at the end' '
 217
 218         word_diff --color-words=.
 219
 220 '
 221
 222 test_done