tests/tail-2/infloop-1

   1 #!/bin/sh
   2 # This test would fail with tail from pre-1.22i textutils.
   3
   4 if test "$VERBOSE" = yes; then
   5   set -x
   6   tail --version
   7 fi
   8
   9 tmp=tail-inf1.$$
  10 pwd=`pwd`
  11 trap "cd $pwd; rm -rf $tmp" 0 1 2 3 15
  12
  13 test_failure=0
  14 mkdir $tmp || test_failure=1
  15 cd $tmp || test_failure=1
  16
  17 if test $test_failure = 1; then
  18   echo 'failure in testing framework'
  19   exit 1
  20 fi
  21
  22 yes > t &
  23 yes_pid=$!
  24 while :; do
  25   test -s t && break
  26 done
  27 tail -1 t &
  28 tail_pid=$!
  29 kill $yes_pid
  30 sleep 1
  31 kill $tail_pid