test-lib: use more compact expression in PIPE prerequisite

diff --git a/t/test-lib.sh b/t/test-lib.sh
index 1b6e53f78aef40673354e5f1911d78808ae8ef4d..c730c0bc1399e4d6c4846a4fe8d4afce28f0b51d 100644 (file)
--- a/t/test-lib.sh
+++ b/t/test-lib.sh
@@ -99,7 +99,6 @@ unset VISUAL EMAIL LANGUAGE COLUMNS $("$PERL_PATH" -e '
        my $ok = join("|", qw(
                TRACE
                DEBUG
-               USE_LOOKUP
                TEST
                .*_TEST
                PROVE
@@ -991,9 +990,6 @@ case $uname_s in
        find () {
                /usr/bin/find "$@"
        }
-       sum () {
-               md5sum "$@"
-       }
        # git sees Windows-style pwd
        pwd () {
                builtin pwd -W
@@ -1066,14 +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 '
@@ -1169,7 +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 |