t/t7816-grep-binary-pattern.sh

   1 #!/bin/sh
   2
   3 test_description='git grep with a binary pattern files'
   4
   5 . ./test-lib.sh
   6
   7 nul_match () {
   8         matches=$1
   9         flags=$2
  10         pattern=$3
  11         pattern_human=$(echo "$pattern" | sed 's/Q/<NUL>/g')
  12
  13         if test "$matches" = 1
  14         then
  15                 test_expect_success "git grep -f f $flags '$pattern_human' a" "
  16                         printf '$pattern' | q_to_nul >f &&
  17                         git grep -f f $flags a
  18                 "
  19         elif test "$matches" = 0
  20         then
  21                 test_expect_success "git grep -f f $flags '$pattern_human' a" "
  22                         printf '$pattern' | q_to_nul >f &&
  23                         test_must_fail git grep -f f $flags a
  24                 "
  25         elif test "$matches" = T1
  26         then
  27                 test_expect_failure "git grep -f f $flags '$pattern_human' a" "
  28                         printf '$pattern' | q_to_nul >f &&
  29                         git grep -f f $flags a
  30                 "
  31         elif test "$matches" = T0
  32         then
  33                 test_expect_failure "git grep -f f $flags '$pattern_human' a" "
  34                         printf '$pattern' | q_to_nul >f &&
  35                         test_must_fail git grep -f f $flags a
  36                 "
  37         else
  38                 test_expect_success "PANIC: Test framework error. Unknown matches value $matches" 'false'
  39         fi
  40 }
  41
  42 test_expect_success 'setup' "
  43         echo 'binaryQfileQm[*]cQ*æQð' | q_to_nul >a &&
  44         git add a &&
  45         git commit -m.
  46 "
  47
  48 nul_match 1 '-F' 'yQf'
  49 nul_match 0 '-F' 'yQx'
  50 nul_match 1 '-Fi' 'YQf'
  51 nul_match 0 '-Fi' 'YQx'
  52 nul_match 1 '' 'yQf'
  53 nul_match 0 '' 'yQx'
  54 nul_match 1 '' 'æQð'
  55 nul_match 1 '-F' 'eQm[*]c'
  56 nul_match 1 '-Fi' 'EQM[*]C'
  57
  58 # Regex patterns that would match but shouldn't with -F
  59 nul_match 0 '-F' 'yQ[f]'
  60 nul_match 0 '-F' '[y]Qf'
  61 nul_match 0 '-Fi' 'YQ[F]'
  62 nul_match 0 '-Fi' '[Y]QF'
  63 nul_match 0 '-F' 'æQ[ð]'
  64 nul_match 0 '-F' '[æ]Qð'
  65 nul_match 0 '-Fi' 'ÆQ[Ð]'
  66 nul_match 0 '-Fi' '[Æ]QÐ'
  67
  68 # kwset is disabled on -i & non-ASCII. No way to match non-ASCII \0
  69 # patterns case-insensitively.
  70 nul_match T1 '-i' 'ÆQÐ'
  71
  72 # \0 implicitly disables regexes. This is an undocumented internal
  73 # limitation.
  74 nul_match T1 '' 'yQ[f]'
  75 nul_match T1 '' '[y]Qf'
  76 nul_match T1 '-i' 'YQ[F]'
  77 nul_match T1 '-i' '[Y]Qf'
  78 nul_match T1 '' 'æQ[ð]'
  79 nul_match T1 '' '[æ]Qð'
  80 nul_match T1 '-i' 'ÆQ[Ð]'
  81
  82 # ... because of \0 implicitly disabling regexes regexes that
  83 # should/shouldn't match don't do the right thing.
  84 nul_match T1 '' 'eQm.*cQ'
  85 nul_match T1 '-i' 'EQM.*cQ'
  86 nul_match T0 '' 'eQm[*]c'
  87 nul_match T0 '-i' 'EQM[*]C'
  88
  89 # Due to the REG_STARTEND extension when kwset() is disabled on -i &
  90 # non-ASCII the string will be matched in its entirety, but the
  91 # pattern will be cut off at the first \0.
  92 nul_match 0 '-i' 'NOMATCHQð'
  93 nul_match T0 '-i' '[Æ]QNOMATCH'
  94 nul_match T0 '-i' '[æ]QNOMATCH'
  95 # Matches, but for the wrong reasons, just stops at [æ]
  96 nul_match 1 '-i' '[Æ]Qð'
  97 nul_match 1 '-i' '[æ]Qð'
  98
  99 # Ensure that the matcher doesn't regress to something that stops at
 100 # \0
 101 nul_match 0 '-F' 'yQ[f]'
 102 nul_match 0 '-Fi' 'YQ[F]'
 103 nul_match 0 '' 'yQNOMATCH'
 104 nul_match 0 '' 'QNOMATCH'
 105 nul_match 0 '-i' 'YQNOMATCH'
 106 nul_match 0 '-i' 'QNOMATCH'
 107 nul_match 0 '-F' 'æQ[ð]'
 108 nul_match 0 '-Fi' 'ÆQ[Ð]'
 109 nul_match 0 '' 'yQNÓMATCH'
 110 nul_match 0 '' 'QNÓMATCH'
 111 nul_match 0 '-i' 'YQNÓMATCH'
 112 nul_match 0 '-i' 'QNÓMATCH'
 113
 114 test_done