gl/tests/test-select-out.sh

   1 #!/bin/sh
   2 # Test select() on file descriptors opened for writing.
   3
   4 tmpfiles=""
   5 trap 'rm -fr $tmpfiles' 1 2 3 15
   6
   7 tmpfiles="$tmpfiles t-select-out.out t-select-out.tmp"
   8
   9 # Regular files.
  10
  11 rm -f t-select-out.tmp
  12 ./test-select-fd${EXEEXT} w 1 t-select-out.tmp > t-select-out.out
  13 test `cat t-select-out.tmp` = "1" || exit 1
  14
  15 # Pipes.
  16
  17 if false; then # This test fails on some platforms.
  18   rm -f t-select-out.tmp
  19   ( { echo abc; ./test-select-fd${EXEEXT} w 1 t-select-out.tmp; } | { sleep 1; cat; } ) > /dev/null
  20   test `cat t-select-out.tmp` = "0" || exit 1
  21 fi
  22
  23 rm -f t-select-out.tmp
  24 ( { sleep 1; echo abc; ./test-select-fd${EXEEXT} w 1 t-select-out.tmp; } | cat) > /dev/null
  25 test `cat t-select-out.tmp` = "1" || exit 1
  26
  27 # Special files.
  28
  29 rm -f t-select-out.tmp
  30 ./test-select-fd${EXEEXT} w 1 t-select-out.tmp > /dev/null
  31 test `cat t-select-out.tmp` = "1" || exit 1
  32
  33 rm -fr $tmpfiles
  34
  35 exit 0