t/t4019-diff-wserror.sh

   1 #!/bin/sh
   2
   3 test_description='diff whitespace error detection'
   4
   5 . ./test-lib.sh
   6
   7 test_expect_success setup '
   8
   9         git config diff.color.whitespace "blue reverse" &&
  10         >F &&
  11         git add F &&
  12         echo "         Eight SP indent" >>F &&
  13         echo "  HT and SP indent" >>F &&
  14         echo "With trailing SP " >>F &&
  15         echo "Carriage ReturnQ" | tr Q "\015" >>F &&
  16         echo "No problem" >>F &&
  17         echo >>F
  18
  19 '
  20
  21 blue_grep='7;34m' ;# ESC [ 7 ; 3 4 m
  22
  23 test_expect_success default '
  24
  25         git diff --color >output
  26         grep "$blue_grep" output >error
  27         grep -v "$blue_grep" output >normal
  28
  29         grep Eight normal >/dev/null &&
  30         grep HT error >/dev/null &&
  31         grep With error >/dev/null &&
  32         grep Return error >/dev/null &&
  33         grep No normal >/dev/null
  34
  35 '
  36
  37 test_expect_success 'without -trail' '
  38
  39         git config core.whitespace -trail
  40         git diff --color >output
  41         grep "$blue_grep" output >error
  42         grep -v "$blue_grep" output >normal
  43
  44         grep Eight normal >/dev/null &&
  45         grep HT error >/dev/null &&
  46         grep With normal >/dev/null &&
  47         grep Return normal >/dev/null &&
  48         grep No normal >/dev/null
  49
  50 '
  51
  52 test_expect_success 'without -trail (attribute)' '
  53
  54         git config --unset core.whitespace
  55         echo "F whitespace=-trail" >.gitattributes
  56         git diff --color >output
  57         grep "$blue_grep" output >error
  58         grep -v "$blue_grep" output >normal
  59
  60         grep Eight normal >/dev/null &&
  61         grep HT error >/dev/null &&
  62         grep With normal >/dev/null &&
  63         grep Return normal >/dev/null &&
  64         grep No normal >/dev/null
  65
  66 '
  67
  68 test_expect_success 'without -space' '
  69
  70         rm -f .gitattributes
  71         git config core.whitespace -space
  72         git diff --color >output
  73         grep "$blue_grep" output >error
  74         grep -v "$blue_grep" output >normal
  75
  76         grep Eight normal >/dev/null &&
  77         grep HT normal >/dev/null &&
  78         grep With error >/dev/null &&
  79         grep Return error >/dev/null &&
  80         grep No normal >/dev/null
  81
  82 '
  83
  84 test_expect_success 'without -space (attribute)' '
  85
  86         git config --unset core.whitespace
  87         echo "F whitespace=-space" >.gitattributes
  88         git diff --color >output
  89         grep "$blue_grep" output >error
  90         grep -v "$blue_grep" output >normal
  91
  92         grep Eight normal >/dev/null &&
  93         grep HT normal >/dev/null &&
  94         grep With error >/dev/null &&
  95         grep Return error >/dev/null &&
  96         grep No normal >/dev/null
  97
  98 '
  99
 100 test_expect_success 'with indent-non-tab only' '
 101
 102         rm -f .gitattributes
 103         git config core.whitespace indent,-trailing,-space
 104         git diff --color >output
 105         grep "$blue_grep" output >error
 106         grep -v "$blue_grep" output >normal
 107
 108         grep Eight error >/dev/null &&
 109         grep HT normal >/dev/null &&
 110         grep With normal >/dev/null &&
 111         grep Return normal >/dev/null &&
 112         grep No normal >/dev/null
 113
 114 '
 115
 116 test_expect_success 'with indent-non-tab only (attribute)' '
 117
 118         git config --unset core.whitespace
 119         echo "F whitespace=indent,-trailing,-space" >.gitattributes
 120         git diff --color >output
 121         grep "$blue_grep" output >error
 122         grep -v "$blue_grep" output >normal
 123
 124         grep Eight error >/dev/null &&
 125         grep HT normal >/dev/null &&
 126         grep With normal >/dev/null &&
 127         grep Return normal >/dev/null &&
 128         grep No normal >/dev/null
 129
 130 '
 131
 132 test_expect_success 'with cr-at-eol' '
 133
 134         rm -f .gitattributes
 135         git config core.whitespace cr-at-eol
 136         git diff --color >output
 137         grep "$blue_grep" output >error
 138         grep -v "$blue_grep" output >normal
 139
 140         grep Eight normal >/dev/null &&
 141         grep HT error >/dev/null &&
 142         grep With error >/dev/null &&
 143         grep Return normal >/dev/null &&
 144         grep No normal >/dev/null
 145
 146 '
 147
 148 test_expect_success 'with cr-at-eol (attribute)' '
 149
 150         git config --unset core.whitespace
 151         echo "F whitespace=trailing,cr-at-eol" >.gitattributes
 152         git diff --color >output
 153         grep "$blue_grep" output >error
 154         grep -v "$blue_grep" output >normal
 155
 156         grep Eight normal >/dev/null &&
 157         grep HT error >/dev/null &&
 158         grep With error >/dev/null &&
 159         grep Return normal >/dev/null &&
 160         grep No normal >/dev/null
 161
 162 '
 163
 164 test_expect_success 'trailing empty lines (1)' '
 165
 166         rm -f .gitattributes &&
 167         test_must_fail git diff --check >output &&
 168         grep "new blank line at" output &&
 169         grep "trailing whitespace" output
 170
 171 '
 172
 173 test_expect_success 'trailing empty lines (2)' '
 174
 175         echo "F -whitespace" >.gitattributes &&
 176         git diff --check >output &&
 177         ! test -s output
 178
 179 '
 180
 181 test_expect_success 'do not color trailing cr in context' '
 182         git config --unset core.whitespace
 183         rm -f .gitattributes &&
 184         echo AAAQ | tr Q "\015" >G &&
 185         git add G &&
 186         echo BBBQ | tr Q "\015" >>G
 187         git diff --color G | tr "\015" Q >output &&
 188         grep "BBB.*${blue_grep}Q" output &&
 189         grep "AAA.*\[mQ" output
 190
 191 '
 192
 193 test_expect_success 'color new trailing blank lines' '
 194         { echo a; echo b; echo; echo; } >x &&
 195         git add x &&
 196         { echo a; echo; echo; echo; echo c; echo; echo; echo; echo; } >x &&
 197         git diff --color x >output &&
 198         cnt=$(grep "${blue_grep}" output | wc -l) &&
 199         test $cnt = 2
 200 '
 201
 202 test_done