test: test_must_be_empty helper

diff --git a/t/t3903-stash.sh b/t/t3903-stash.sh
index 5dfbda7491aceaa64215ac94bdd416f9b93f55d3..5473e6196f359858e4bf9c008951cc90d431b270 100755 (executable)
--- a/t/t3903-stash.sh
+++ b/t/t3903-stash.sh
@@ -200,17 +200,17 @@ test_expect_success 'apply -q is quiet' '
        echo foo > file &&
        git stash &&
        git stash apply -q > output.out 2>&1 &&
-       test ! -s output.out
+       test_must_be_empty output.out
 '
 
 test_expect_success 'save -q is quiet' '
        git stash save --quiet > output.out 2>&1 &&
-       test ! -s output.out
+       test_must_be_empty output.out
 '
 
 test_expect_success 'pop -q is quiet' '
        git stash pop -q > output.out 2>&1 &&
-       test ! -s output.out
+       test_must_be_empty output.out
 '
 
 test_expect_success 'pop -q --index works and is quiet' '
@@ -219,13 +219,13 @@ test_expect_success 'pop -q --index works and is quiet' '
        git stash save --quiet &&
        git stash pop -q --index > output.out 2>&1 &&
        test foo = "$(git show :file)" &&
-       test ! -s output.out
+       test_must_be_empty output.out
 '
 
 test_expect_success 'drop -q is quiet' '
        git stash &&
        git stash drop -q > output.out 2>&1 &&
-       test ! -s output.out
+       test_must_be_empty output.out
 '
 
 test_expect_success 'stash -k' '