1 files changed, 9 insertions, 0 deletions
diff --git a/internal/slug/slug_test.go b/internal/slug/slug_test.go
index 9953f34..59e2a75 100644
--- a/internal/slug/slug_test.go
+++ b/internal/slug/slug_test.go
@@ -20,6 +20,15 @@ func TestMake(t *testing.T) {
 	}
 }
 
+func TestClean(t *testing.T) {
+	cases := map[string]string{"!!!": "", "": "", "Ντομάτες": "ntomates", "Go ": "go"}
+	for in, want := range cases {
+		if got := Clean(in); got != want {
+			t.Errorf("Clean(%q) = %q, want %q", in, got, want)
+		}
+	}
+}
+
 func TestValid(t *testing.T) {
 	for _, ok := range []string{"a", "abc-def", "a1-b2"} {
 		if !Valid(ok) {