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 # $HASH1 is good, $HASH4 is bad, we skip $HASH3
  75 # but $HASH2 is bad,
  76 # so we should find $HASH2 as the first bad commit
  77 test_expect_success 'bisect skip: successfull result' '
  78         git bisect reset &&
  79         git bisect start $HASH4 $HASH1 &&
  80         git bisect skip &&
  81         git bisect bad > my_bisect_log.txt &&
  82         grep "$HASH2 is first bad commit" my_bisect_log.txt &&
  83         git bisect reset
  84 '
  85
  86 # $HASH1 is good, $HASH4 is bad, we skip $HASH3 and $HASH2
  87 # so we should not be able to tell the first bad commit
  88 # among $HASH2, $HASH3 and $HASH4
  89 test_expect_success 'bisect skip: cannot tell between 3 commits' '
  90         git bisect start $HASH4 $HASH1 &&
  91         git bisect skip || return 1
  92
  93         if git bisect skip > my_bisect_log.txt
  94         then
  95                 echo Oops, should have failed.
  96                 false
  97         else
  98                 test $? -eq 2 &&
  99                 grep "first bad commit could be any of" my_bisect_log.txt &&
 100                 ! grep $HASH1 my_bisect_log.txt &&
 101                 grep $HASH2 my_bisect_log.txt &&
 102                 grep $HASH3 my_bisect_log.txt &&
 103                 grep $HASH4 my_bisect_log.txt &&
 104                 git bisect reset
 105         fi
 106 '
 107
 108 # $HASH1 is good, $HASH4 is bad, we skip $HASH3
 109 # but $HASH2 is good,
 110 # so we should not be able to tell the first bad commit
 111 # among $HASH3 and $HASH4
 112 test_expect_success 'bisect skip: cannot tell between 2 commits' '
 113         git bisect start $HASH4 $HASH1 &&
 114         git bisect skip || return 1
 115
 116         if git bisect good > my_bisect_log.txt
 117         then
 118                 echo Oops, should have failed.
 119                 false
 120         else
 121                 test $? -eq 2 &&
 122                 grep "first bad commit could be any of" my_bisect_log.txt &&
 123                 ! grep $HASH1 my_bisect_log.txt &&
 124                 ! grep $HASH2 my_bisect_log.txt &&
 125                 grep $HASH3 my_bisect_log.txt &&
 126                 grep $HASH4 my_bisect_log.txt &&
 127                 git bisect reset
 128         fi
 129 '
 130
 131 # We want to automatically find the commit that
 132 # introduced "Another" into hello.
 133 test_expect_success \
 134     '"git bisect run" simple case' \
 135     'echo "#"\!"/bin/sh" > test_script.sh &&
 136      echo "grep Another hello > /dev/null" >> test_script.sh &&
 137      echo "test \$? -ne 0" >> test_script.sh &&
 138      chmod +x test_script.sh &&
 139      git bisect start &&
 140      git bisect good $HASH1 &&
 141      git bisect bad $HASH4 &&
 142      git bisect run ./test_script.sh > my_bisect_log.txt &&
 143      grep "$HASH3 is first bad commit" my_bisect_log.txt &&
 144      git bisect reset'
 145
 146 # We want to automatically find the commit that
 147 # introduced "Ciao" into hello.
 148 test_expect_success \
 149     '"git bisect run" with more complex "git bisect start"' \
 150     'echo "#"\!"/bin/sh" > test_script.sh &&
 151      echo "grep Ciao hello > /dev/null" >> test_script.sh &&
 152      echo "test \$? -ne 0" >> test_script.sh &&
 153      chmod +x test_script.sh &&
 154      git bisect start $HASH4 $HASH1 &&
 155      git bisect run ./test_script.sh > my_bisect_log.txt &&
 156      grep "$HASH4 is first bad commit" my_bisect_log.txt &&
 157      git bisect reset'
 158
 159 # $HASH1 is good, $HASH5 is bad, we skip $HASH3
 160 # but $HASH4 is good,
 161 # so we should find $HASH5 as the first bad commit
 162 HASH5=
 163 test_expect_success 'bisect skip: add line and then a new test' '
 164         add_line_into_file "5: Another new line." hello &&
 165         HASH5=$(git rev-parse --verify HEAD) &&
 166         git bisect start $HASH5 $HASH1 &&
 167         git bisect skip &&
 168         git bisect good > my_bisect_log.txt &&
 169         grep "$HASH5 is first bad commit" my_bisect_log.txt &&
 170         git bisect reset
 171 '
 172
 173 #
 174 #
 175 test_done