1 files changed, 78 insertions, 0 deletions
diff --git a/tests/tail-2/assert b/tests/tail-2/assert
new file mode 100755
index 0000000..b94a6ba
--- /dev/null
+++ b/tests/tail-2/assert
@@ -0,0 +1,78 @@
+#!/bin/sh
+# Test for assertion failure in "test".
+
+# Copyright (C) 1999, 2000, 2004, 2006 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 of the License, 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, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301, USA.
+
+
+# This test fails with tail from textutils-2.0.
+# It would get something like this:
+#   tail: tail.c:718: recheck: Assertion `valid_file_spec (f)' failed.
+#   Aborted
+# due to a race condition in which a dev/inode pair is reused.
+
+if test "$VERBOSE" = yes; then
+  set -x
+  tail --version
+fi
+
+# Not "expensive" per se, but sleeping for so long is annoying.
+. $srcdir/../very-expensive
+
+tmp=tail-assert.$$
+pwd=`pwd`
+trap 'cd "$pwd" && rm -rf $tmp' 0 1 2 3 15
+
+test_failure=0
+mkdir $tmp || test_failure=1
+cd $tmp || test_failure=1
+
+if test $test_failure = 1; then
+  echo 'failure in testing framework'
+  exit 1
+fi
+
+ok='ok ok ok'
+
+touch a foo
+tail --follow=name a foo > err 2>&1 &
+tail_pid=$!
+# Arrange for the tail process to die after 12 seconds.
+(sleep 12; kill $tail_pid) &
+
+echo sleeping for 7 seconds...
+
+# Give the backgrounded `tail' a chance to start before removing foo.
+# Otherwise, without --retry, tail wouldn't try to open `foo' again.
+sleep 1
+
+rm -f foo
+sleep 6
+echo $ok > f
+mv f foo
+
+# echo waiting....
+wait
+
+case "`cat err`" in
+  *$ok) fail=0;;
+  *) fail=1;;
+esac
+
+test $fail = 1 && cat err
+
+exit $fail