t/t4019-diff-wserror.sh

   1 #!/bin/sh
   2
   3 test_description='diff whitespace error detection'
   4
   5 TEST_PASSES_SANITIZE_LEAK=true
   6 . ./test-lib.sh
   7
   8 test_expect_success setup '
   9
  10         git config diff.color.whitespace "blue reverse" &&
  11         >F &&
  12         git add F &&
  13         echo "         Eight SP indent" >>F &&
  14         echo "  HT and SP indent" >>F &&
  15         echo "With trailing SP " >>F &&
  16         echo "Carriage ReturnQ" | tr Q "\015" >>F &&
  17         echo "No problem" >>F &&
  18         echo >>F
  19
  20 '
  21
  22 blue_grep='7;34m' ;# ESC [ 7 ; 3 4 m
  23
  24 printf "\033[%s" "$blue_grep" >check-grep
  25 if (grep "$blue_grep" <check-grep | grep "$blue_grep") >/dev/null 2>&1
  26 then
  27         grep_a=grep
  28 elif (grep -a "$blue_grep" <check-grep | grep -a "$blue_grep") >/dev/null 2>&1
  29 then
  30         grep_a='grep -a'
  31 else
  32         grep_a=grep ;# expected to fail...
  33 fi
  34 rm -f check-grep
  35
  36 prepare_output () {
  37         git diff --color >output
  38         $grep_a "$blue_grep" output >error
  39         $grep_a -v "$blue_grep" output >normal
  40         return 0
  41 }
  42
  43 test_expect_success default '
  44
  45         prepare_output &&
  46
  47         grep Eight normal >/dev/null &&
  48         grep HT error >/dev/null &&
  49         grep With error >/dev/null &&
  50         grep Return error >/dev/null &&
  51         grep No normal >/dev/null
  52
  53 '
  54
  55 test_expect_success 'default (attribute)' '
  56
  57         test_might_fail git config --unset core.whitespace &&
  58         echo "F whitespace" >.gitattributes &&
  59         prepare_output &&
  60
  61         grep Eight error >/dev/null &&
  62         grep HT error >/dev/null &&
  63         grep With error >/dev/null &&
  64         grep Return error >/dev/null &&
  65         grep No normal >/dev/null
  66
  67 '
  68
  69 test_expect_success 'default, tabwidth=10 (attribute)' '
  70
  71         git config core.whitespace "tabwidth=10" &&
  72         echo "F whitespace" >.gitattributes &&
  73         prepare_output &&
  74
  75         grep Eight normal >/dev/null &&
  76         grep HT error >/dev/null &&
  77         grep With error >/dev/null &&
  78         grep Return error >/dev/null &&
  79         grep No normal >/dev/null
  80
  81 '
  82
  83 test_expect_success 'no check (attribute)' '
  84
  85         test_might_fail git config --unset core.whitespace &&
  86         echo "F -whitespace" >.gitattributes &&
  87         prepare_output &&
  88
  89         grep Eight normal >/dev/null &&
  90         grep HT normal >/dev/null &&
  91         grep With normal >/dev/null &&
  92         grep Return normal >/dev/null &&
  93         grep No normal >/dev/null
  94
  95 '
  96
  97 test_expect_success 'no check, tabwidth=10 (attribute), must be irrelevant' '
  98
  99         git config core.whitespace "tabwidth=10" &&
 100         echo "F -whitespace" >.gitattributes &&
 101         prepare_output &&
 102
 103         grep Eight normal >/dev/null &&
 104         grep HT normal >/dev/null &&
 105         grep With normal >/dev/null &&
 106         grep Return normal >/dev/null &&
 107         grep No normal >/dev/null
 108
 109 '
 110
 111 test_expect_success 'without -trail' '
 112
 113         rm -f .gitattributes &&
 114         git config core.whitespace -trail &&
 115         prepare_output &&
 116
 117         grep Eight normal >/dev/null &&
 118         grep HT error >/dev/null &&
 119         grep With normal >/dev/null &&
 120         grep Return normal >/dev/null &&
 121         grep No normal >/dev/null
 122
 123 '
 124
 125 test_expect_success 'without -trail (attribute)' '
 126
 127         test_might_fail git config --unset core.whitespace &&
 128         echo "F whitespace=-trail" >.gitattributes &&
 129         prepare_output &&
 130
 131         grep Eight normal >/dev/null &&
 132         grep HT error >/dev/null &&
 133         grep With normal >/dev/null &&
 134         grep Return normal >/dev/null &&
 135         grep No normal >/dev/null
 136
 137 '
 138
 139 test_expect_success 'without -space' '
 140
 141         rm -f .gitattributes &&
 142         git config core.whitespace -space &&
 143         prepare_output &&
 144
 145         grep Eight normal >/dev/null &&
 146         grep HT normal >/dev/null &&
 147         grep With error >/dev/null &&
 148         grep Return error >/dev/null &&
 149         grep No normal >/dev/null
 150
 151 '
 152
 153 test_expect_success 'without -space (attribute)' '
 154
 155         test_might_fail git config --unset core.whitespace &&
 156         echo "F whitespace=-space" >.gitattributes &&
 157         prepare_output &&
 158
 159         grep Eight normal >/dev/null &&
 160         grep HT normal >/dev/null &&
 161         grep With error >/dev/null &&
 162         grep Return error >/dev/null &&
 163         grep No normal >/dev/null
 164
 165 '
 166
 167 test_expect_success 'with indent-non-tab only' '
 168
 169         rm -f .gitattributes &&
 170         git config core.whitespace indent,-trailing,-space &&
 171         prepare_output &&
 172
 173         grep Eight error >/dev/null &&
 174         grep HT normal >/dev/null &&
 175         grep With normal >/dev/null &&
 176         grep Return normal >/dev/null &&
 177         grep No normal >/dev/null
 178
 179 '
 180
 181 test_expect_success 'with indent-non-tab only (attribute)' '
 182
 183         test_might_fail git config --unset core.whitespace &&
 184         echo "F whitespace=indent,-trailing,-space" >.gitattributes &&
 185         prepare_output &&
 186
 187         grep Eight error >/dev/null &&
 188         grep HT normal >/dev/null &&
 189         grep With normal >/dev/null &&
 190         grep Return normal >/dev/null &&
 191         grep No normal >/dev/null
 192
 193 '
 194
 195 test_expect_success 'with indent-non-tab only, tabwidth=10' '
 196
 197         rm -f .gitattributes &&
 198         git config core.whitespace indent,tabwidth=10,-trailing,-space &&
 199         prepare_output &&
 200
 201         grep Eight normal >/dev/null &&
 202         grep HT normal >/dev/null &&
 203         grep With normal >/dev/null &&
 204         grep Return normal >/dev/null &&
 205         grep No normal >/dev/null
 206
 207 '
 208
 209 test_expect_success 'with indent-non-tab only, tabwidth=10 (attribute)' '
 210
 211         test_might_fail git config --unset core.whitespace &&
 212         echo "F whitespace=indent,-trailing,-space,tabwidth=10" >.gitattributes &&
 213         prepare_output &&
 214
 215         grep Eight normal >/dev/null &&
 216         grep HT normal >/dev/null &&
 217         grep With normal >/dev/null &&
 218         grep Return normal >/dev/null &&
 219         grep No normal >/dev/null
 220
 221 '
 222
 223 test_expect_success 'with cr-at-eol' '
 224
 225         rm -f .gitattributes &&
 226         git config core.whitespace cr-at-eol &&
 227         prepare_output &&
 228
 229         grep Eight normal >/dev/null &&
 230         grep HT error >/dev/null &&
 231         grep With error >/dev/null &&
 232         grep Return normal >/dev/null &&
 233         grep No normal >/dev/null
 234
 235 '
 236
 237 test_expect_success 'with cr-at-eol (attribute)' '
 238
 239         test_might_fail git config --unset core.whitespace &&
 240         echo "F whitespace=trailing,cr-at-eol" >.gitattributes &&
 241         prepare_output &&
 242
 243         grep Eight normal >/dev/null &&
 244         grep HT error >/dev/null &&
 245         grep With error >/dev/null &&
 246         grep Return normal >/dev/null &&
 247         grep No normal >/dev/null
 248
 249 '
 250
 251 test_expect_success 'trailing empty lines (1)' '
 252
 253         rm -f .gitattributes &&
 254         test_must_fail git diff --check >output &&
 255         grep "new blank line at" output &&
 256         grep "trailing whitespace" output
 257
 258 '
 259
 260 test_expect_success 'trailing empty lines (2)' '
 261
 262         echo "F -whitespace" >.gitattributes &&
 263         git diff --check >output &&
 264         test_must_be_empty output
 265
 266 '
 267
 268 test_expect_success 'checkdiff shows correct line number for trailing blank lines' '
 269
 270         printf "a\nb\n" > G &&
 271         git add G &&
 272         printf "x\nx\nx\na\nb\nc\n\n" > G &&
 273         [ "$(git diff --check -- G)" = "G:7: new blank line at EOF." ]
 274
 275 '
 276
 277 test_expect_success 'do not color trailing cr in context' '
 278         test_might_fail git config --unset core.whitespace &&
 279         rm -f .gitattributes &&
 280         echo AAAQ | tr Q "\015" >G &&
 281         git add G &&
 282         echo BBBQ | tr Q "\015" >>G &&
 283         git diff --color G | tr "\015" Q >output &&
 284         grep "BBB.*${blue_grep}Q" output &&
 285         grep "AAA.*\[mQ" output
 286
 287 '
 288
 289 test_expect_success 'color new trailing blank lines' '
 290         { echo a; echo b; echo; echo; } >x &&
 291         git add x &&
 292         { echo a; echo; echo; echo; echo c; echo; echo; echo; echo; } >x &&
 293         git diff --color x >output &&
 294         cnt=$($grep_a "${blue_grep}" output | wc -l) &&
 295         test $cnt = 2
 296 '
 297
 298 test_done