Add tests for the libreblacklist help system, make them pass.

1 files changed, 6 insertions, 1 deletions

diff --git a/src/lib/libreblacklist b/src/lib/libreblacklist
index 6876a2b..1d73d2f 100755
--- a/src/lib/libreblacklist
+++ b/src/lib/libreblacklist
@@ -25,7 +25,7 @@ blacklist-normalize() {
 }
 
 # Usage: blacklist-cat
-# Prints the blacklist
+# Prints the blacklist.
 # Uses the chache, but downloads it if it doesn't exist. Also normalizes the
 # blacklist for easier parsing.
 blacklist-cat() {
@@ -127,6 +127,11 @@ if [[ "${0##*/}" == libreblacklist ]]; then
 			done
 		fi
 	}
+
+	if [[ $# == 0 ]]; then
+		usage >/dev/stderr
+		exit 1
+	fi
 	_blacklist_cmd=$1
 	shift
 	if [[ $_blacklist_cmd == -h ]]; then