t/t6030-bisect-porcelain.sh

   1 #!/bin/sh
   2 #
   3 # Copyright (c) 2007 Christian Couder
   4 #
   5 test_description='Tests git-bisect functionality'
   6
   7 exec </dev/null
   8
   9 . ./test-lib.sh
  10
  11 add_line_into_file()
  12 {
  13     _line=$1
  14     _file=$2
  15
  16     if [ -f "$_file" ]; then
  17         echo "$_line" >> $_file || return $?
  18         MSG="Add <$_line> into <$_file>."
  19     else
  20         echo "$_line" > $_file || return $?
  21         git add $_file || return $?
  22         MSG="Create file <$_file> with <$_line> inside."
  23     fi
  24
  25     test_tick
  26     git-commit --quiet -m "$MSG" $_file
  27 }
  28
  29 HASH1=
  30 HASH2=
  31 HASH3=
  32 HASH4=
  33
  34 test_expect_success 'set up basic repo with 1 file (hello) and 4 commits' '
  35      add_line_into_file "1: Hello World" hello &&
  36      HASH1=$(git rev-parse --verify HEAD) &&
  37      add_line_into_file "2: A new day for git" hello &&
  38      HASH2=$(git rev-parse --verify HEAD) &&
  39      add_line_into_file "3: Another new day for git" hello &&
  40      HASH3=$(git rev-parse --verify HEAD) &&
  41      add_line_into_file "4: Ciao for now" hello &&
  42      HASH4=$(git rev-parse --verify HEAD)
  43 '
  44
  45 test_expect_success 'bisect starts with only one bad' '
  46         git bisect reset &&
  47         git bisect start &&
  48         git bisect bad $HASH4 &&
  49         git bisect next
  50 '
  51
  52 test_expect_success 'bisect does not start with only one good' '
  53         git bisect reset &&
  54         git bisect start &&
  55         git bisect good $HASH1 || return 1
  56
  57         if git bisect next
  58         then
  59                 echo Oops, should have failed.
  60                 false
  61         else
  62                 :
  63         fi
  64 '
  65
  66 test_expect_success 'bisect start with one bad and good' '
  67         git bisect reset &&
  68         git bisect start &&
  69         git bisect good $HASH1 &&
  70         git bisect bad $HASH4 &&
  71         git bisect next
  72 '
  73
  74 test_expect_success 'bisect good and bad fails if not given only revs' '
  75         git bisect reset &&
  76         git bisect start &&
  77         test_must_fail git bisect good foo $HASH1 &&
  78         test_must_fail git bisect good $HASH1 bar &&
  79         test_must_fail git bisect bad frotz &&
  80         test_must_fail git bisect bad $HASH3 $HASH4 &&
  81         test_must_fail git bisect skip bar $HASH3 &&
  82         test_must_fail git bisect skip $HASH1 foo &&
  83         git bisect good $HASH1 &&
  84         git bisect bad $HASH4
  85 '
  86
  87 test_expect_success 'bisect reset: back in the master branch' '
  88         git bisect reset &&
  89         echo "* master" > branch.expect &&
  90         git branch > branch.output &&
  91         cmp branch.expect branch.output
  92 '
  93
  94 test_expect_success 'bisect reset: back in another branch' '
  95         git checkout -b other &&
  96         git bisect start &&
  97         git bisect good $HASH1 &&
  98         git bisect bad $HASH3 &&
  99         git bisect reset &&
 100         echo "  master" > branch.expect &&
 101         echo "* other" >> branch.expect &&
 102         git branch > branch.output &&
 103         cmp branch.expect branch.output
 104 '
 105
 106 test_expect_success 'bisect reset when not bisecting' '
 107         git bisect reset &&
 108         git branch > branch.output &&
 109         cmp branch.expect branch.output
 110 '
 111
 112 test_expect_success 'bisect reset removes packed refs' '
 113         git bisect reset &&
 114         git bisect start &&
 115         git bisect good $HASH1 &&
 116         git bisect bad $HASH3 &&
 117         git pack-refs --all --prune &&
 118         git bisect next &&
 119         git bisect reset &&
 120         test -z "$(git for-each-ref "refs/bisect/*")" &&
 121         test -z "$(git for-each-ref "refs/heads/bisect")"
 122 '
 123
 124 # $HASH1 is good, $HASH4 is bad, we skip $HASH3
 125 # but $HASH2 is bad,
 126 # so we should find $HASH2 as the first bad commit
 127 test_expect_success 'bisect skip: successfull result' '
 128         git bisect reset &&
 129         git bisect start $HASH4 $HASH1 &&
 130         git bisect skip &&
 131         git bisect bad > my_bisect_log.txt &&
 132         grep "$HASH2 is first bad commit" my_bisect_log.txt &&
 133         git bisect reset
 134 '
 135
 136 # $HASH1 is good, $HASH4 is bad, we skip $HASH3 and $HASH2
 137 # so we should not be able to tell the first bad commit
 138 # among $HASH2, $HASH3 and $HASH4
 139 test_expect_success 'bisect skip: cannot tell between 3 commits' '
 140         git bisect start $HASH4 $HASH1 &&
 141         git bisect skip || return 1
 142
 143         if git bisect skip > my_bisect_log.txt
 144         then
 145                 echo Oops, should have failed.
 146                 false
 147         else
 148                 test $? -eq 2 &&
 149                 grep "first bad commit could be any of" my_bisect_log.txt &&
 150                 ! grep $HASH1 my_bisect_log.txt &&
 151                 grep $HASH2 my_bisect_log.txt &&
 152                 grep $HASH3 my_bisect_log.txt &&
 153                 grep $HASH4 my_bisect_log.txt &&
 154                 git bisect reset
 155         fi
 156 '
 157
 158 # $HASH1 is good, $HASH4 is bad, we skip $HASH3
 159 # but $HASH2 is good,
 160 # so we should not be able to tell the first bad commit
 161 # among $HASH3 and $HASH4
 162 test_expect_success 'bisect skip: cannot tell between 2 commits' '
 163         git bisect start $HASH4 $HASH1 &&
 164         git bisect skip || return 1
 165
 166         if git bisect good > my_bisect_log.txt
 167         then
 168                 echo Oops, should have failed.
 169                 false
 170         else
 171                 test $? -eq 2 &&
 172                 grep "first bad commit could be any of" my_bisect_log.txt &&
 173                 ! grep $HASH1 my_bisect_log.txt &&
 174                 ! grep $HASH2 my_bisect_log.txt &&
 175                 grep $HASH3 my_bisect_log.txt &&
 176                 grep $HASH4 my_bisect_log.txt &&
 177                 git bisect reset
 178         fi
 179 '
 180
 181 # We want to automatically find the commit that
 182 # introduced "Another" into hello.
 183 test_expect_success \
 184     '"git bisect run" simple case' \
 185     'echo "#"\!"/bin/sh" > test_script.sh &&
 186      echo "grep Another hello > /dev/null" >> test_script.sh &&
 187      echo "test \$? -ne 0" >> test_script.sh &&
 188      chmod +x test_script.sh &&
 189      git bisect start &&
 190      git bisect good $HASH1 &&
 191      git bisect bad $HASH4 &&
 192      git bisect run ./test_script.sh > my_bisect_log.txt &&
 193      grep "$HASH3 is first bad commit" my_bisect_log.txt &&
 194      git bisect reset'
 195
 196 # We want to automatically find the commit that
 197 # introduced "Ciao" into hello.
 198 test_expect_success \
 199     '"git bisect run" with more complex "git bisect start"' \
 200     'echo "#"\!"/bin/sh" > test_script.sh &&
 201      echo "grep Ciao hello > /dev/null" >> test_script.sh &&
 202      echo "test \$? -ne 0" >> test_script.sh &&
 203      chmod +x test_script.sh &&
 204      git bisect start $HASH4 $HASH1 &&
 205      git bisect run ./test_script.sh > my_bisect_log.txt &&
 206      grep "$HASH4 is first bad commit" my_bisect_log.txt &&
 207      git bisect reset'
 208
 209 # $HASH1 is good, $HASH5 is bad, we skip $HASH3
 210 # but $HASH4 is good,
 211 # so we should find $HASH5 as the first bad commit
 212 HASH5=
 213 test_expect_success 'bisect skip: add line and then a new test' '
 214         add_line_into_file "5: Another new line." hello &&
 215         HASH5=$(git rev-parse --verify HEAD) &&
 216         git bisect start $HASH5 $HASH1 &&
 217         git bisect skip &&
 218         git bisect good > my_bisect_log.txt &&
 219         grep "$HASH5 is first bad commit" my_bisect_log.txt &&
 220         git bisect log > log_to_replay.txt &&
 221         git bisect reset
 222 '
 223
 224 test_expect_success 'bisect skip and bisect replay' '
 225         git bisect replay log_to_replay.txt > my_bisect_log.txt &&
 226         grep "$HASH5 is first bad commit" my_bisect_log.txt &&
 227         git bisect reset
 228 '
 229
 230 HASH6=
 231 test_expect_success 'bisect run & skip: cannot tell between 2' '
 232         add_line_into_file "6: Yet a line." hello &&
 233         HASH6=$(git rev-parse --verify HEAD) &&
 234         echo "#"\!"/bin/sh" > test_script.sh &&
 235         echo "sed -ne \\\$p hello | grep Ciao > /dev/null && exit 125" >> test_script.sh &&
 236         echo "grep line hello > /dev/null" >> test_script.sh &&
 237         echo "test \$? -ne 0" >> test_script.sh &&
 238         chmod +x test_script.sh &&
 239         git bisect start $HASH6 $HASH1 &&
 240         if git bisect run ./test_script.sh > my_bisect_log.txt
 241         then
 242                 echo Oops, should have failed.
 243                 false
 244         else
 245                 test $? -eq 2 &&
 246                 grep "first bad commit could be any of" my_bisect_log.txt &&
 247                 ! grep $HASH3 my_bisect_log.txt &&
 248                 ! grep $HASH6 my_bisect_log.txt &&
 249                 grep $HASH4 my_bisect_log.txt &&
 250                 grep $HASH5 my_bisect_log.txt
 251         fi
 252 '
 253
 254 HASH7=
 255 test_expect_success 'bisect run & skip: find first bad' '
 256         git bisect reset &&
 257         add_line_into_file "7: Should be the last line." hello &&
 258         HASH7=$(git rev-parse --verify HEAD) &&
 259         echo "#"\!"/bin/sh" > test_script.sh &&
 260         echo "sed -ne \\\$p hello | grep Ciao > /dev/null && exit 125" >> test_script.sh &&
 261         echo "sed -ne \\\$p hello | grep day > /dev/null && exit 125" >> test_script.sh &&
 262         echo "grep Yet hello > /dev/null" >> test_script.sh &&
 263         echo "test \$? -ne 0" >> test_script.sh &&
 264         chmod +x test_script.sh &&
 265         git bisect start $HASH7 $HASH1 &&
 266         git bisect run ./test_script.sh > my_bisect_log.txt &&
 267         grep "$HASH6 is first bad commit" my_bisect_log.txt
 268 '
 269
 270 test_expect_success 'bisect starting with a detached HEAD' '
 271
 272         git bisect reset &&
 273         git checkout master^ &&
 274         HEAD=$(git rev-parse --verify HEAD) &&
 275         git bisect start &&
 276         test $HEAD = $(cat .git/BISECT_START) &&
 277         git bisect reset &&
 278         test $HEAD = $(git rev-parse --verify HEAD)
 279
 280 '
 281
 282 #
 283 #
 284 test_done