tests/execscript

   1 export LC_ALL=C
   2 export LANG=C
   3
   4 if [ $UID -eq 0 ]; then
   5         echo "execscript: the test suite should not be run as root" >&2
   6 fi
   7
   8 set -- one two three
   9 echo before exec1.sub: "$@"
  10 echo calling exec1.sub
  11 ./exec1.sub aa bb cc dd ee
  12 echo after exec1.sub with args: $?
  13 ./exec1.sub
  14 echo after exec1.sub without args: $?
  15 echo after exec1.sub: "$@"
  16
  17 # set up a fixed path so we know notthere will not be found
  18 PATH=/usr/bin:/bin:/usr/local/bin:
  19 export PATH
  20
  21 notthere
  22 echo $?
  23
  24 # this is iffy, since the error messages may vary from system to system
  25 # and /tmp might not exist
  26 ln -s ${THIS_SH} /tmp/bash 2>/dev/null
  27 if [ -f /tmp/bash ]; then
  28         /tmp/bash notthere
  29 else
  30         ${THIS_SH} notthere
  31 fi
  32 echo $?
  33 rm -f /tmp/bash
  34
  35 # /bin/sh should be there on all systems
  36 ${THIS_SH} /bin/sh
  37 echo $?
  38
  39 # try executing a directory
  40 /
  41 echo $?
  42
  43 ${THIS_SH} /
  44 echo $?
  45
  46 # try sourcing a directory
  47 . /
  48 echo $?
  49
  50 # try sourcing a binary file -- post-2.04 versions don't do the binary file
  51 # check, and will probably fail with `command not found', or status 127
  52 # bash-4.1 and later check for 256 NUL characters and fail as binary files
  53 # if there are more than that, it's probably binary
  54 . ${THIS_SH} 2>/dev/null
  55 echo $?
  56
  57 # post-bash-2.05 versions allow sourcing non-regular files
  58 . /dev/null
  59 echo $?
  60
  61 # kill two birds with one test -- test out the BASH_ENV code
  62 echo echo this is bashenv > /tmp/bashenv
  63 export BASH_ENV=/tmp/bashenv
  64 ${THIS_SH} ./exec3.sub
  65 rm -f /tmp/bashenv
  66 unset BASH_ENV
  67
  68 # we're resetting the $PATH to empty, so this should be last
  69 PATH=
  70
  71 notthere
  72 echo $?
  73
  74 command notthere
  75 echo $?
  76
  77 command -p notthere
  78 echo $?
  79
  80 # but -p should guarantee that we find all the standard utilities, even
  81 # with an empty or unset $PATH
  82 command -p sh -c 'echo this is $0'
  83 unset PATH
  84 command -p sh -c 'echo this is $0'
  85
  86 # a bug in bash before bash-2.01 caused PATH to be set to the empty string
  87 # when command -p was run with PATH unset
  88 echo ${PATH-unset}
  89
  90 echo "echo ok" | ${THIS_SH} -t
  91
  92 ${THIS_SH} ./exec2.sub
  93 echo $?
  94
  95 ${THIS_SH} ./exec4.sub
  96
  97 # try exec'ing a command that cannot be found in $PATH
  98 ${THIS_SH} ./exec5.sub
  99
 100 # this was a bug in bash versions before bash-2.04
 101 ${THIS_SH} -c 'cat </dev/null | cat >/dev/null' >&-
 102
 103 # checks for proper return values in subshell commands with inverted return
 104 # values
 105
 106 ${THIS_SH} ./exec6.sub
 107
 108 # checks for properly deciding what constitutes an executable file
 109 ${THIS_SH} ./exec7.sub
 110
 111 ${THIS_SH} -i ./exec8.sub
 112
 113 ${THIS_SH} ./exec9.sub
 114
 115 true | `echo true` &
 116
 117 echo after
 118
 119 # Problem with bash at least back to version 3.0
 120 ${THIS_SH} -c 'VAR=0; VAR=1 command exec; exit ${VAR}'
 121
 122 # problem with bash through bash-4.1
 123 (
 124         exec /var/empty/nosuch
 125         echo bad
 126 ) 2>/dev/null
 127 [ $? = 127 ] || echo FAIL: bad exit status $? at $LINENO