internal/httpd/headings_test.go

 1package httpd
 2
 3import (
 4	"strings"
 5	"testing"
 6)
 7
 8// A rendered README sits under the page's own h1, so its headings move
 9// down one level, ids intact; h6 stays h6 (#133).
10func TestDemoteHeadings(t *testing.T) {
11	out := string(renderReadme("README.md", []byte("# Top\n\n## Next\n\n###### Deep\n")))
12	for _, want := range []string{`<h2 id="top">Top</h2>`, `<h3 id="next">Next</h3>`, `<h6 id="deep">Deep</h6>`} {
13		if !strings.Contains(out, want) {
14			t.Errorf("lacks %s:\n%s", want, out)
15		}
16	}
17	if strings.Contains(out, "<h1") {
18		t.Errorf("an h1 survived:\n%s", out)
19	}
20}