t/parallel-tests-concurrency.sh

   1 #! /bin/sh
   2 # Copyright (C) 2009-2017 Free Software Foundation, Inc.
   3 #
   4 # This program is free software; you can redistribute it and/or modify
   5 # it under the terms of the GNU General Public License as published by
   6 # the Free Software Foundation; either version 2, or (at your option)
   7 # any later version.
   8 #
   9 # This program is distributed in the hope that it will be useful,
  10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 # GNU General Public License for more details.
  13 #
  14 # You should have received a copy of the GNU General Public License
  15 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
  16
  17 # Check parallel-tests features:
  18 # - concurrent parallel execution
  19
  20 # FIXME: we should factor out (into am-test-lib.sh?) the code to determine
  21 #        how to run make in parallel mode ...
  22
  23 . test-init.sh
  24
  25 case $MAKE in
  26   *\ -j*) skip_ "\$MAKE contains '-j'";;
  27 esac
  28
  29 if using_gmake; then
  30   j=-j
  31 else
  32   unindent > Makefile <<END
  33     all: one two
  34     one:
  35         $sleep && test -f two
  36     two:
  37         echo ok > \$@
  38 END
  39   for j in "-j" "-j " NONE; do
  40     if test x"$j" = xNONE; then
  41       skip_ "can't run make in parallel mode"
  42     fi
  43     run_make -M -- ${j}2 all || continue
  44     $EGREP -i "(warning|error):|-j[\"\'\` ]" output && continue
  45     break
  46   done
  47   rm -f one output Makefile
  48 fi
  49
  50 cat >> configure.ac << 'END'
  51 AC_OUTPUT
  52 END
  53
  54 cat > Makefile.am << 'END'
  55 TESTS =
  56 END
  57
  58 cat > x <<'END'
  59 #! /bin/sh
  60 echo "this is $0"
  61 # Creative quoting below to please maintainer-check.
  62 sleep '1'
  63 exit 0
  64 END
  65 chmod a+x ./x
  66
  67 mkdir sub
  68 for i in 1 2 3; do
  69   echo "TESTS += foo$i.test" >> Makefile.am
  70   cp x foo$i.test
  71   echo "TESTS += zap$i" >> Makefile.am
  72   cp x zap$i
  73   echo "TESTS += sub/bar$i.test" >> Makefile.am
  74   cp x sub/bar$i.test
  75   echo "TESTS += sub/mu$i" >> Makefile.am
  76   cp x sub/mu$i
  77 done
  78
  79 $ACLOCAL
  80 $AUTOCONF
  81 $AUTOMAKE -a
  82
  83 for build in serial parallel; do
  84   mkdir $build
  85   cd $build
  86   ../configure
  87   $MAKE
  88   cd ..
  89 done
  90
  91 cd serial
  92 # Do *not* use "make -j1" here; apparently, some make implementations
  93 # (e.g., AIX 7.1) interpret it as a synonym of "make -j" :-(
  94 $MAKE check &
  95 cd ..
  96
  97 cd parallel
  98 $sleep
  99 run_make -O -- ${j}4 check
 100 cd ..
 101
 102 # Ensure the tests are really being run in parallel mode: if this is
 103 # the case, the serial run of the dummy testsuite started above should
 104 # still be ongoing when the parallel one has terminated.
 105 kill -0 $!
 106 cat parallel/stdout
 107 test $(grep -c '^PASS:' parallel/stdout) -eq 12
 108
 109 # Wait long enough so that there are no open files any more when the
 110 # post-test cleanup runs.  But exit after we've waited for two minutes
 111 # or more, to avoid testsuite hangs in unusual situations (this has
 112 # already happened).
 113 i=1
 114 while test ! -f serial/test-suite.log && test $i -le 120; do
 115   i=$(($i + 1))
 116   sleep '1' # Extra quoting to please maintainer-check.
 117 done
 118 $sleep
 119
 120 :