feat: rewrite render

pkg/slug/slug_test.go

@@ -0,0 +1,44 @@
+package slug
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestSlug(t *testing.T) {
+
+	cases := [][]struct {
+		in, out string
+	}{
+		{
+			{"foo", "foo"},
+			{"foo", "foo-1"},
+			{"foo bar", "foo-bar"},
+		},
+		{
+			{"foo", "foo"},
+			{"fooCamelCase", "foocamelcase"},
+		},
+		{
+			{"foo", "foo"},
+			{"foo", "foo-1"},
+			// {"foo 1", "foo-1-1"}, // these are too rare for Jsonnet
+			// {"foo 1", "foo-1-2"},
+			{"foo", "foo-2"},
+		},
+		{
+			{"heading with a - dash", "heading-with-a---dash"},
+			{"heading with an _ underscore", "heading-with-an-_-underscore"},
+			{"heading with a period.txt", "heading-with-a-periodtxt"},
+			{"exchange.bind_headers(exchange, routing [, bindCallback])", "exchangebind_headersexchange-routing--bindcallback"},
+		},
+	}
+
+	for _, cs := range cases {
+		s := New()
+		for _, c := range cs {
+			assert.Equal(t, c.out, s.Slug(c.in))
+		}
+	}
+}