diff options
Diffstat (limited to 'tests')
| -rw-r--r-- | tests/misc/Makefile.am | 2 | ||||
| -rwxr-xr-x | tests/misc/printf-surprise | 43 |
2 files changed, 44 insertions, 1 deletions
diff --git a/tests/misc/Makefile.am b/tests/misc/Makefile.am index 5f256cfa2..2be132f30 100644 --- a/tests/misc/Makefile.am +++ b/tests/misc/Makefile.am @@ -83,6 +83,7 @@ TESTS = \ pathchk1 \ printf \ printf-hex \ + printf-surprise \ pwd-long \ readlink-fp-loop \ runcon-no-reorder \ @@ -116,5 +117,4 @@ TESTS = \ tty-eof \ unexpand - include $(top_srcdir)/tests/check.mk diff --git a/tests/misc/printf-surprise b/tests/misc/printf-surprise new file mode 100755 index 000000000..03bc73a41 --- /dev/null +++ b/tests/misc/printf-surprise @@ -0,0 +1,43 @@ +#!/bin/sh +# Detect printf(3) failure even when it doesn't set stream error indicator + +# Copyright (C) 2007 Free Software Foundation, Inc. + +# This program is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. + +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <http://www.gnu.org/licenses/>. + +prog="$abs_top_builddir/src/printf" + +if test "$VERBOSE" = yes; then + set -x + "$prog" --version +fi + +. $srcdir/../test-lib.sh + +fail=0 + +# The literal width below is 2^31-1. +# I expect this usage of the printf program to fail. +# However, it depends on the C library printf function. +# It could conceivably output "1." and 2GB worth of '0's. +# You can provoke misbehavior with a much smaller width if you limit +# virtual memory via, e.g., ulimit -v 10000, but using ulimit would +# be tricky, since it's not portable. +"$prog" %.2147483647f 1 > /dev/null 2> err && fail=1 +echo "$prog: cannot perform formatted output: Cannot allocate memory" \ + > exp || framework_failure + +compare err exp || fail=1 + +(exit $fail); exit $fail |