1 files changed, 114 insertions, 0 deletions
diff --git a/t/parallel-tests-concurrency.sh b/t/parallel-tests-concurrency.sh
new file mode 100755
index 000000000..b606276fa
--- /dev/null
+++ b/t/parallel-tests-concurrency.sh
@@ -0,0 +1,114 @@
+#! /bin/sh
+# Copyright (C) 2009-2012 Free Software Foundation, Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# Check parallel-tests features:
+# - concurrent parallel execution
+
+. ./defs || exit 1
+
+case $MAKE in
+  *\ -j*) skip_ "\$MAKE contains '-j'";;
+esac
+
+if using_gmake; then
+  j=-j
+else
+  unindent > Makefile <<END
+    all: one two
+    one:
+	$sleep && test -f two
+    two:
+	echo ok > \$@
+END
+  for j in "-j" "-j " NONE; do
+    if test x"$j" = xNONE; then
+      skip_ "can't run make in parallel mode"
+    fi
+    $MAKE ${j}2 all >output 2>&1 || continue
+    $EGREP -i "(warning|error):|-j[\"\'\` ]" output && continue
+    break
+  done
+  rm -f one output Makefile
+fi
+
+cat >> configure.ac << 'END'
+AC_OUTPUT
+END
+
+cat > Makefile.am << 'END'
+TESTS =
+END
+
+cat > x <<'END'
+#! /bin/sh
+echo "this is $0"
+# Creative quoting below to please maintainer-check.
+sleep '1'
+exit 0
+END
+chmod a+x ./x
+
+mkdir sub
+for i in 1 2 3; do
+  echo "TESTS += foo$i.test" >> Makefile.am
+  cp x foo$i.test
+  echo "TESTS += zap$i" >> Makefile.am
+  cp x zap$i
+  echo "TESTS += sub/bar$i.test" >> Makefile.am
+  cp x sub/bar$i.test
+  echo "TESTS += sub/mu$i" >> Makefile.am
+  cp x sub/mu$i
+done
+
+$ACLOCAL
+$AUTOCONF
+$AUTOMAKE -a
+
+for build in serial parallel; do
+  mkdir $build
+  cd $build
+  ../configure
+  $MAKE
+  cd ..
+done
+
+cd serial
+$MAKE ${j}1 check &
+cd ../parallel
+$sleep
+# Use append mode here to avoid dropping output.  See automake bug#11413.
+: > stdout
+$MAKE ${j}4 check >> stdout
+cd ..
+# Ensure the tests are really being run in parallel mode: if this is
+# the case, the serial run of the dummy testsuite started above should
+# still be ongoing when the parallel one has terminated.
+kill -0 $!
+cat parallel/stdout
+test $(grep -c '^PASS:' parallel/stdout) -eq 12
+
+# Wait long enough so that there are no open files any more when the
+# post-test cleanup runs.  But exit after we've waited for two minutes
+# or more, to avoid testsuite hangs in unusual situations (this has
+# already happened).
+i=1
+while test ! -f serial/test-suite.log && test $i -le 120; do
+  i=$(($i + 1))
+  sleep '1' # Extra quoting to please maintainer-check.
+done
+$sleep
+
+: