tests/tail-2/assert-2

   1 #!/bin/sh
   2 # This variant of `assert' would get a UMR reliably in 2.0.9.
   3 # Due to a race condition in the test, the `assert' script would get
   4 # the UMR on Solaris only some of the time, and not at all on Linux/GNU.
   5
   6 if test "$VERBOSE" = yes; then
   7   set -x
   8   tail --version
   9 fi
  10
  11 tmp=tail-as2.$$
  12 pwd=`pwd`
  13 trap "cd $pwd; rm -rf $tmp" 0 1 2 3 15
  14
  15 test_failure=0
  16 mkdir $tmp || test_failure=1
  17 cd $tmp || test_failure=1
  18
  19 if test $test_failure = 1; then
  20   echo 'failure in testing framework'
  21   exit 1
  22 fi
  23
  24 ok='ok ok ok'
  25
  26 touch a
  27 tail --follow=name a foo > err 2>&1 &
  28 tail_pid=$!
  29 # Arrange for the tail process to die after 12 seconds.
  30 (sleep 12; kill $tail_pid) &
  31 echo $ok > f
  32 echo sleeping for 7 seconds...
  33 sleep 7
  34 mv f foo
  35
  36 # echo waiting....
  37 wait
  38
  39 case "`cat err`" in
  40   *$ok) fail=0;;
  41   *) fail=1;;
  42 esac
  43
  44 test $fail = 1 && cat err
  45
  46 exit $fail