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
  12 '
  13
  14 decrypt_color () {
  15         sed \
  16                 -e 's/.\[1m/<WHITE>/g' \
  17                 -e 's/.\[31m/<RED>/g' \
  18                 -e 's/.\[32m/<GREEN>/g' \
  19                 -e 's/.\[36m/<BROWN>/g' \
  20                 -e 's/.\[m/<RESET>/g'
  21 }
  22
  23 word_diff () {
  24         test_must_fail git diff --no-index "$@" pre post > output &&
  25         decrypt_color < output > output.decrypted &&
  26         test_cmp expect output.decrypted
  27 }
  28
  29 cat > pre <<\EOF
  30 h(4)
  31
  32 a = b + c
  33 EOF
  34
  35 cat > post <<\EOF
  36 h(4),hh[44]
  37
  38 a = b + c
  39
  40 aa = a
  41
  42 aeff = aeff * ( aaa )
  43 EOF
  44
  45 cat > expect <<\EOF
  46 <WHITE>diff --git a/pre b/post<RESET>
  47 <WHITE>index 330b04f..5ed8eff 100644<RESET>
  48 <WHITE>--- a/pre<RESET>
  49 <WHITE>+++ b/post<RESET>
  50 <BROWN>@@ -1,3 +1,7 @@<RESET>
  51 <RED>h(4)<RESET><GREEN>h(4),hh[44]<RESET>
  52 <RESET>
  53 a = b + c<RESET>
  54
  55 <GREEN>aa = a<RESET>
  56
  57 <GREEN>aeff = aeff * ( aaa )<RESET>
  58 EOF
  59
  60 test_expect_success 'word diff with runs of whitespace' '
  61
  62         word_diff --color-words
  63
  64 '
  65
  66 cat > expect <<\EOF
  67 <WHITE>diff --git a/pre b/post<RESET>
  68 <WHITE>index 330b04f..5ed8eff 100644<RESET>
  69 <WHITE>--- a/pre<RESET>
  70 <WHITE>+++ b/post<RESET>
  71 <BROWN>@@ -1 +1 @@<RESET>
  72 <RED>h(4)<RESET><GREEN>h(4),hh[44]<RESET>
  73 <BROWN>@@ -3,0 +4,4 @@ a = b + c<RESET>
  74
  75 <GREEN>aa = a<RESET>
  76
  77 <GREEN>aeff = aeff * ( aaa )<RESET>
  78 EOF
  79
  80 test_expect_success 'word diff without context' '
  81
  82         word_diff --color-words --unified=0
  83
  84 '
  85
  86 cat > expect <<\EOF
  87 <WHITE>diff --git a/pre b/post<RESET>
  88 <WHITE>index 330b04f..5ed8eff 100644<RESET>
  89 <WHITE>--- a/pre<RESET>
  90 <WHITE>+++ b/post<RESET>
  91 <BROWN>@@ -1,3 +1,7 @@<RESET>
  92 h(4),<GREEN>hh<RESET>[44]
  93 <RESET>
  94 a = b + c<RESET>
  95
  96 <GREEN>aa = a<RESET>
  97
  98 <GREEN>aeff = aeff * ( aaa<RESET> )
  99 EOF
 100 cp expect expect.letter-runs-are-words
 101
 102 test_expect_success 'word diff with a regular expression' '
 103
 104         word_diff --color-words="[a-z]+"
 105
 106 '
 107
 108 test_expect_success 'set a diff driver' '
 109         git config diff.testdriver.wordRegex "[^[:space:]]" &&
 110         cat <<EOF > .gitattributes
 111 pre diff=testdriver
 112 post diff=testdriver
 113 EOF
 114 '
 115
 116 test_expect_success 'option overrides .gitattributes' '
 117
 118         word_diff --color-words="[a-z]+"
 119
 120 '
 121
 122 cat > expect <<\EOF
 123 <WHITE>diff --git a/pre b/post<RESET>
 124 <WHITE>index 330b04f..5ed8eff 100644<RESET>
 125 <WHITE>--- a/pre<RESET>
 126 <WHITE>+++ b/post<RESET>
 127 <BROWN>@@ -1,3 +1,7 @@<RESET>
 128 h(4)<GREEN>,hh[44]<RESET>
 129 <RESET>
 130 a = b + c<RESET>
 131
 132 <GREEN>aa = a<RESET>
 133
 134 <GREEN>aeff = aeff * ( aaa )<RESET>
 135 EOF
 136 cp expect expect.non-whitespace-is-word
 137
 138 test_expect_success 'use regex supplied by driver' '
 139
 140         word_diff --color-words
 141
 142 '
 143
 144 test_expect_success 'set diff.wordRegex option' '
 145         git config diff.wordRegex "[[:alnum:]]+"
 146 '
 147
 148 cp expect.letter-runs-are-words expect
 149
 150 test_expect_success 'command-line overrides config' '
 151         word_diff --color-words="[a-z]+"
 152 '
 153
 154 cp expect.non-whitespace-is-word expect
 155
 156 test_expect_success '.gitattributes override config' '
 157         word_diff --color-words
 158 '
 159
 160 test_expect_success 'remove diff driver regex' '
 161         git config --unset diff.testdriver.wordRegex
 162 '
 163
 164 cat > expect <<\EOF
 165 <WHITE>diff --git a/pre b/post<RESET>
 166 <WHITE>index 330b04f..5ed8eff 100644<RESET>
 167 <WHITE>--- a/pre<RESET>
 168 <WHITE>+++ b/post<RESET>
 169 <BROWN>@@ -1,3 +1,7 @@<RESET>
 170 h(4),<GREEN>hh[44<RESET>]
 171 <RESET>
 172 a = b + c<RESET>
 173
 174 <GREEN>aa = a<RESET>
 175
 176 <GREEN>aeff = aeff * ( aaa<RESET> )
 177 EOF
 178
 179 test_expect_success 'use configured regex' '
 180         word_diff --color-words
 181 '
 182
 183 echo 'aaa (aaa)' > pre
 184 echo 'aaa (aaa) aaa' > post
 185
 186 cat > expect <<\EOF
 187 <WHITE>diff --git a/pre b/post<RESET>
 188 <WHITE>index c29453b..be22f37 100644<RESET>
 189 <WHITE>--- a/pre<RESET>
 190 <WHITE>+++ b/post<RESET>
 191 <BROWN>@@ -1 +1 @@<RESET>
 192 aaa (aaa) <GREEN>aaa<RESET>
 193 EOF
 194
 195 test_expect_success 'test parsing words for newline' '
 196
 197         word_diff --color-words="a+"
 198
 199
 200 '
 201
 202 echo '(:' > pre
 203 echo '(' > post
 204
 205 cat > expect <<\EOF
 206 <WHITE>diff --git a/pre b/post<RESET>
 207 <WHITE>index 289cb9d..2d06f37 100644<RESET>
 208 <WHITE>--- a/pre<RESET>
 209 <WHITE>+++ b/post<RESET>
 210 <BROWN>@@ -1 +1 @@<RESET>
 211 (<RED>:<RESET>
 212 EOF
 213
 214 test_expect_success 'test when words are only removed at the end' '
 215
 216         word_diff --color-words=.
 217
 218 '
 219
 220 test_done