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         return 0
  40 }
  41
  42 test_expect_success default '
  43
  44         prepare_output &&
  45
  46         grep Eight normal >/dev/null &&
  47         grep HT error >/dev/null &&
  48         grep With error >/dev/null &&
  49         grep Return error >/dev/null &&
  50         grep No normal >/dev/null
  51
  52 '
  53
  54 test_expect_success 'without -trail' '
  55
  56         git config core.whitespace -trail &&
  57         prepare_output &&
  58
  59         grep Eight normal >/dev/null &&
  60         grep HT error >/dev/null &&
  61         grep With normal >/dev/null &&
  62         grep Return normal >/dev/null &&
  63         grep No normal >/dev/null
  64
  65 '
  66
  67 test_expect_success 'without -trail (attribute)' '
  68
  69         test_might_fail git config --unset core.whitespace &&
  70         echo "F whitespace=-trail" >.gitattributes &&
  71         prepare_output &&
  72
  73         grep Eight normal >/dev/null &&
  74         grep HT error >/dev/null &&
  75         grep With normal >/dev/null &&
  76         grep Return normal >/dev/null &&
  77         grep No normal >/dev/null
  78
  79 '
  80
  81 test_expect_success 'without -space' '
  82
  83         rm -f .gitattributes &&
  84         git config core.whitespace -space &&
  85         prepare_output &&
  86
  87         grep Eight normal >/dev/null &&
  88         grep HT normal >/dev/null &&
  89         grep With error >/dev/null &&
  90         grep Return error >/dev/null &&
  91         grep No normal >/dev/null
  92
  93 '
  94
  95 test_expect_success 'without -space (attribute)' '
  96
  97         test_might_fail git config --unset core.whitespace &&
  98         echo "F whitespace=-space" >.gitattributes &&
  99         prepare_output &&
 100
 101         grep Eight normal >/dev/null &&
 102         grep HT normal >/dev/null &&
 103         grep With error >/dev/null &&
 104         grep Return error >/dev/null &&
 105         grep No normal >/dev/null
 106
 107 '
 108
 109 test_expect_success 'with indent-non-tab only' '
 110
 111         rm -f .gitattributes &&
 112         git config core.whitespace indent,-trailing,-space &&
 113         prepare_output &&
 114
 115         grep Eight error >/dev/null &&
 116         grep HT normal >/dev/null &&
 117         grep With normal >/dev/null &&
 118         grep Return normal >/dev/null &&
 119         grep No normal >/dev/null
 120
 121 '
 122
 123 test_expect_success 'with indent-non-tab only (attribute)' '
 124
 125         test_might_fail git config --unset core.whitespace &&
 126         echo "F whitespace=indent,-trailing,-space" >.gitattributes &&
 127         prepare_output &&
 128
 129         grep Eight error >/dev/null &&
 130         grep HT normal >/dev/null &&
 131         grep With normal >/dev/null &&
 132         grep Return normal >/dev/null &&
 133         grep No normal >/dev/null
 134
 135 '
 136
 137 test_expect_success 'with cr-at-eol' '
 138
 139         rm -f .gitattributes &&
 140         git config core.whitespace cr-at-eol &&
 141         prepare_output &&
 142
 143         grep Eight normal >/dev/null &&
 144         grep HT error >/dev/null &&
 145         grep With error >/dev/null &&
 146         grep Return normal >/dev/null &&
 147         grep No normal >/dev/null
 148
 149 '
 150
 151 test_expect_success 'with cr-at-eol (attribute)' '
 152
 153         test_might_fail git config --unset core.whitespace &&
 154         echo "F whitespace=trailing,cr-at-eol" >.gitattributes &&
 155         prepare_output &&
 156
 157         grep Eight normal >/dev/null &&
 158         grep HT error >/dev/null &&
 159         grep With error >/dev/null &&
 160         grep Return normal >/dev/null &&
 161         grep No normal >/dev/null
 162
 163 '
 164
 165 test_expect_success 'trailing empty lines (1)' '
 166
 167         rm -f .gitattributes &&
 168         test_must_fail git diff --check >output &&
 169         grep "new blank line at" output &&
 170         grep "trailing whitespace" output
 171
 172 '
 173
 174 test_expect_success 'trailing empty lines (2)' '
 175
 176         echo "F -whitespace" >.gitattributes &&
 177         git diff --check >output &&
 178         ! test -s output
 179
 180 '
 181
 182 test_expect_success 'do not color trailing cr in context' '
 183         test_might_fail git config --unset core.whitespace &&
 184         rm -f .gitattributes &&
 185         echo AAAQ | tr Q "\015" >G &&
 186         git add G &&
 187         echo BBBQ | tr Q "\015" >>G &&
 188         git diff --color G | tr "\015" Q >output &&
 189         grep "BBB.*${blue_grep}Q" output &&
 190         grep "AAA.*\[mQ" output
 191
 192 '
 193
 194 test_expect_success 'color new trailing blank lines' '
 195         { echo a; echo b; echo; echo; } >x &&
 196         git add x &&
 197         { echo a; echo; echo; echo; echo c; echo; echo; echo; echo; } >x &&
 198         git diff --color x >output &&
 199         cnt=$($grep_a "${blue_grep}" output | wc -l) &&
 200         test $cnt = 2
 201 '
 202
 203 test_done