test: have 'empty' checks be a bit more verbose

1 files changed, 8 insertions, 4 deletions

diff --git a/test/test-common.sh b/test/test-common.sh
index 5c238e1..7dd8128 100644
--- a/test/test-common.sh
+++ b/test/test-common.sh
@@ -95,13 +95,17 @@ require() (
 	return 0
 )
 
-empty() (
-	set +x
-	[[ $(stat -c %s "$1") -eq 0 ]]
-)
+empty() {
+	diff -u /dev/null "$1"
+}
 
 # Just using '!' doesn't trip `set -e`
 not() (
 	set +x
+	# we don't care about what is in the file on 'not empty'
+	# checks, so redefine 'empty' to be a bit quieter.
+	empty() {
+		[[ $(stat -c %s "$1") -eq 0 ]]
+	}
 	! eval "$@"
 )