internal/httpd/topics_test.go

 1package httpd
 2
 3import "testing"
 4
 5// Explore's column counts topics across the visible repositories, most
 6// used first then by name, capped at twenty, each linking to ?q=<topic>
 7// and the active one clearing the query (desktop layout spec).
 8func TestTopicFacets(t *testing.T) {
 9	repos := []describedRepo{
10		{Topics: []string{"cli", "git"}},
11		{Topics: []string{"git", "swift"}},
12		{Topics: []string{"git"}},
13	}
14	g := topicFacets(repos, "cli")
15	if g.Title != "Topics" || len(g.Items) != 3 {
16		t.Fatalf("group: %+v", g)
17	}
18	if g.Items[0].Label != "git" || g.Items[0].Count != 3 || g.Items[0].Href != "/explore?q=git" {
19		t.Errorf("git: %+v", g.Items[0])
20	}
21	if g.Items[1].Label != "cli" || !g.Items[1].Active || g.Items[1].Href != "/explore" {
22		t.Errorf("cli: %+v", g.Items[1])
23	}
24	if g.Items[2].Label != "swift" || g.Items[2].Count != 1 {
25		t.Errorf("swift: %+v", g.Items[2])
26	}
27	var many []describedRepo
28	for i := 0; i < 30; i++ {
29		many = append(many, describedRepo{Topics: []string{string(rune('a' + i))}})
30	}
31	if n := len(topicFacets(many, "").Items); n != 20 {
32		t.Errorf("cap: %d", n)
33	}
34}