1 files changed, 34 insertions, 0 deletions
diff --git a/internal/slug/slug_test.go b/internal/slug/slug_test.go
new file mode 100644
index 0000000..9953f34
--- /dev/null
+++ b/internal/slug/slug_test.go
@@ -0,0 +1,34 @@
+package slug
+
+import "testing"
+
+func TestMake(t *testing.T) {
+	cases := map[string]string{
+		"Hello, World!":       "hello-world",
+		"  Ünïcödé Tïtle  ":   "unicode-title",
+		"!!!":                 "untitled",
+		"":                    "untitled",
+		"already-a-slug":      "already-a-slug",
+		"Multiple   spaces--": "multiple-spaces",
+		"Καλημέρα κόσμε":      "kalimera-kosme",
+		"日本語":                 "untitled", // unsupported scripts fall back; user can type a slug
+	}
+	for in, want := range cases {
+		if got := Make(in); got != want {
+			t.Errorf("Make(%q) = %q, want %q", in, got, want)
+		}
+	}
+}
+
+func TestValid(t *testing.T) {
+	for _, ok := range []string{"a", "abc-def", "a1-b2"} {
+		if !Valid(ok) {
+			t.Errorf("Valid(%q) = false", ok)
+		}
+	}
+	for _, bad := range []string{"", "-a", "a-", "a--b", "A", "a b", "a/b"} {
+		if Valid(bad) {
+			t.Errorf("Valid(%q) = true", bad)
+		}
+	}
+}