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 printf "\033[%s" "$blue_grep" >check-grep
  24 if (grep "$blue_grep" <check-grep | grep "$blue_grep") >/dev/null 2>&1
  25 then
  26         grep_a=grep
  27 elif (grep -a "$blue_grep" <check-grep | grep -a "$blue_grep") >/dev/null 2>&1
  28 then
  29         grep_a='grep -a'
  30 else
  31         grep_a=grep ;# expected to fail...
  32 fi
  33 rm -f check-grep
  34
  35 prepare_output () {
  36         git diff --color >output
  37         $grep_a "$blue_grep" output >error
  38         $grep_a -v "$blue_grep" output >normal
  39 }
  40
  41 test_expect_success default '
  42
  43         prepare_output
  44
  45         grep Eight normal >/dev/null &&
  46         grep HT error >/dev/null &&
  47         grep With error >/dev/null &&
  48         grep Return error >/dev/null &&
  49         grep No normal >/dev/null
  50
  51 '
  52
  53 test_expect_success 'without -trail' '
  54
  55         git config core.whitespace -trail
  56         prepare_output
  57
  58         grep Eight normal >/dev/null &&
  59         grep HT error >/dev/null &&
  60         grep With normal >/dev/null &&
  61         grep Return normal >/dev/null &&
  62         grep No normal >/dev/null
  63
  64 '
  65
  66 test_expect_success 'without -trail (attribute)' '
  67
  68         git config --unset core.whitespace
  69         echo "F whitespace=-trail" >.gitattributes
  70         prepare_output
  71
  72         grep Eight normal >/dev/null &&
  73         grep HT error >/dev/null &&
  74         grep With normal >/dev/null &&
  75         grep Return normal >/dev/null &&
  76         grep No normal >/dev/null
  77
  78 '
  79
  80 test_expect_success 'without -space' '
  81
  82         rm -f .gitattributes
  83         git config core.whitespace -space
  84         prepare_output
  85
  86         grep Eight normal >/dev/null &&
  87         grep HT normal >/dev/null &&
  88         grep With error >/dev/null &&
  89         grep Return error >/dev/null &&
  90         grep No normal >/dev/null
  91
  92 '
  93
  94 test_expect_success 'without -space (attribute)' '
  95
  96         git config --unset core.whitespace
  97         echo "F whitespace=-space" >.gitattributes
  98         prepare_output
  99
 100         grep Eight normal >/dev/null &&
 101         grep HT normal >/dev/null &&
 102         grep With error >/dev/null &&
 103         grep Return error >/dev/null &&
 104         grep No normal >/dev/null
 105
 106 '
 107
 108 test_expect_success 'with indent-non-tab only' '
 109
 110         rm -f .gitattributes
 111         git config core.whitespace indent,-trailing,-space
 112         prepare_output
 113
 114         grep Eight error >/dev/null &&
 115         grep HT normal >/dev/null &&
 116         grep With normal >/dev/null &&
 117         grep Return normal >/dev/null &&
 118         grep No normal >/dev/null
 119
 120 '
 121
 122 test_expect_success 'with indent-non-tab only (attribute)' '
 123
 124         git config --unset core.whitespace
 125         echo "F whitespace=indent,-trailing,-space" >.gitattributes
 126         prepare_output
 127
 128         grep Eight error >/dev/null &&
 129         grep HT normal >/dev/null &&
 130         grep With normal >/dev/null &&
 131         grep Return normal >/dev/null &&
 132         grep No normal >/dev/null
 133
 134 '
 135
 136 test_expect_success 'with cr-at-eol' '
 137
 138         rm -f .gitattributes
 139         git config core.whitespace cr-at-eol
 140         prepare_output
 141
 142         grep Eight normal >/dev/null &&
 143         grep HT error >/dev/null &&
 144         grep With error >/dev/null &&
 145         grep Return normal >/dev/null &&
 146         grep No normal >/dev/null
 147
 148 '
 149
 150 test_expect_success 'with cr-at-eol (attribute)' '
 151
 152         git config --unset core.whitespace
 153         echo "F whitespace=trailing,cr-at-eol" >.gitattributes
 154         prepare_output
 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 'checkdiff shows correct line number for trailing blank lines' '
 182
 183         printf "a\nb\n" > G &&
 184         git add G &&
 185         printf "x\nx\nx\na\nb\nc\n\n" > G &&
 186         [ "$(git diff --check -- G)" = "G:7: new blank line at EOF." ]
 187
 188 '
 189
 190 test_expect_success 'do not color trailing cr in context' '
 191         git config --unset core.whitespace
 192         rm -f .gitattributes &&
 193         echo AAAQ | tr Q "\015" >G &&
 194         git add G &&
 195         echo BBBQ | tr Q "\015" >>G
 196         git diff --color G | tr "\015" Q >output &&
 197         grep "BBB.*${blue_grep}Q" output &&
 198         grep "AAA.*\[mQ" output
 199
 200 '
 201
 202 test_expect_success 'color new trailing blank lines' '
 203         { echo a; echo b; echo; echo; } >x &&
 204         git add x &&
 205         { echo a; echo; echo; echo; echo c; echo; echo; echo; echo; } >x &&
 206         git diff --color x >output &&
 207         cnt=$($grep_a "${blue_grep}" output | wc -l) &&
 208         test $cnt = 2
 209 '
 210
 211 test_done