test-lib: don't use ulimit in test prerequisites on cygwin
On cygwin (and MinGW), the 'ulimit' built-in bash command does not have
the desired effect of limiting the resources of new processes, at least
for the stack and file descriptors. However, it always returns success
and leads to several test prerequisites being erroneously set to true.
Add a check for cygwin and MinGW to the prerequisite expressions, using
a 'test_have_prereq !MINGW,!CYGWIN' clause, to guard against using ulimit.
This affects the prerequisite expressions for the ULIMIT_STACK_SIZE,
CMDLINE_LIMIT and ULIMIT_FILE_DESCRIPTORS prerequisites.
Signed-off-by: Ramsay Jones <ramsay@ramsayjones.plus.com>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/t/test-lib.sh b/t/test-lib.sh
index f22c1b2..8a91fb1 100644
--- a/t/test-lib.sh
+++ b/t/test-lib.sh
@@ -1165,13 +1165,19 @@
(ulimit -s 128 && "$@")
}
-test_lazy_prereq CMDLINE_LIMIT 'run_with_limited_cmdline true'
+test_lazy_prereq CMDLINE_LIMIT '
+ test_have_prereq !MINGW,!CYGWIN &&
+ run_with_limited_cmdline true
+'
run_with_limited_stack () {
(ulimit -s 128 && "$@")
}
-test_lazy_prereq ULIMIT_STACK_SIZE 'run_with_limited_stack true'
+test_lazy_prereq ULIMIT_STACK_SIZE '
+ test_have_prereq !MINGW,!CYGWIN &&
+ run_with_limited_stack true
+'
build_option () {
git version --build-options |
