contract_test.gno

 1package importdemo
 2
 3import (
 4	"strings"
 5	"testing"
 6
 7	"gno.land/p/nt/uassert/v0"
 8)
 9
10func TestRender(t *testing.T) {
11	got := Render("")
12	expected := `
13# [thread] Hello!
14
15## Foo
16foo foo foo
17## Bar
18bar bar bar
19`
20	uassert.Equal(t, strings.TrimSpace(expected), strings.TrimSpace(got))
21}
22
23// Render must not depend on realm state: two calls have to agree, and the
24// second must not accumulate the first one's posts.
25func TestRenderIsPure(t *testing.T) {
26	uassert.Equal(t, Render(""), Render(""))
27	uassert.Equal(t, 2, strings.Count(Render(""), "## "))
28}
29
30// Posts come back in insertion order. The keys are zero-padded precisely so
31// avl's lexicographic ordering does not put "10" before "9" past nine posts.
32func TestOrderSurvivesPastNinePosts(t *testing.T) {
33	th := newThread("many")
34	for i := 0; i < 12; i++ {
35		th.addPost(ufmtIdx(i), "body")
36	}
37	out := th.String()
38	// post 9 must appear before post 10
39	if strings.Index(out, "## p9\n") > strings.Index(out, "## p10\n") {
40		t.Fatalf("insertion order lost past 9 posts:\n%s", out)
41	}
42	uassert.Equal(t, 12, strings.Count(out, "## "))
43}
44
45func ufmtIdx(i int) string {
46	return "p" + itoa(i)
47}
48
49func itoa(i int) string {
50	if i == 0 {
51		return "0"
52	}
53	var b []byte
54	for i > 0 {
55		b = append([]byte{byte('0' + i%10)}, b...)
56		i /= 10
57	}
58	return string(b)
59}