topology tests: teach a helper to set author dates as well

diff --git a/t/test-lib.sh b/t/test-lib.sh
index 1f510252ad7cb7a5afae67731bc37fccf941b654..8d76cf23d46c813991fbf59da2f1f3b79110547c 100644 (file)
--- a/t/test-lib.sh
+++ b/t/test-lib.sh
@@ -727,6 +727,11 @@ test_i18ngrep () {
        fi
 }
 
+test_lazy_prereq PIPE '
+       # test whether the filesystem supports FIFOs
+       rm -f testfifo && mkfifo testfifo
+'
+
 test_lazy_prereq SYMLINKS '
        # test whether the filesystem supports symbolic links
        ln -s x y && test -h y