test-lib: use more compact expression in PIPE prerequisite

diff --git a/t/test-lib.sh b/t/test-lib.sh
index 5fbd8d4a90b3b88cf57ca53c6b1fe99d5a957460..c730c0bc1399e4d6c4846a4fe8d4afce28f0b51d 100644 (file)
--- a/t/test-lib.sh
+++ b/t/test-lib.sh
@@ -1062,14 +1062,8 @@ test_i18ngrep () {
 
 test_lazy_prereq PIPE '
        # test whether the filesystem supports FIFOs
-       case $(uname -s) in
-       CYGWIN*|MINGW*)
-               false
-               ;;
-       *)
-               rm -f testfifo && mkfifo testfifo
-               ;;
-       esac
+       test_have_prereq !MINGW,!CYGWIN &&
+       rm -f testfifo && mkfifo testfifo
 '
 
 test_lazy_prereq SYMLINKS '
@@ -1165,7 +1159,19 @@ run_with_limited_cmdline () {
        (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 '
+       test_have_prereq !MINGW,!CYGWIN &&
+       run_with_limited_stack true
+'
 
 build_option () {
        git version --build-options |