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

diff --git a/t/test-lib.sh b/t/test-lib.sh
index 9e7f6b424d77ee88c3cd36507cd421a437ec7bfa..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
@@ -760,3 +765,9 @@ test_lazy_prereq AUTOIDENT '
 # When the tests are run as root, permission tests will report that
 # things are writable when they shouldn't be.
 test -w / || test_set_prereq SANITY
+
+GIT_UNZIP=${GIT_UNZIP:-unzip}
+test_lazy_prereq UNZIP '
+       "$GIT_UNZIP" -v
+       test $? -ne 127
+'