cowsay_test.gno

 1package cowsay
 2
 3// handrolled-table: the cow's horn line "||----w |" is ASCII art, not a GFM header
 4// separator. This package renders no table at all, and its production source is live
 5// on an immutable public path, so the opt-out has to live here.
 6
 7import (
 8	"strings"
 9	"testing"
10
11	"gno.land/p/nt/uassert/v0"
12)
13
14func TestWrap(t *testing.T) {
15	tests := []struct {
16		name  string
17		text  string
18		width int
19		want  []string
20	}{
21		{"empty", "", 10, []string{""}},
22		{"single", "hello", 10, []string{"hello"}},
23		{"wrap two", "aaa bbb ccc", 7, []string{"aaa bbb", "ccc"}},
24		{"hard split", "abcdefghij", 4, []string{"abcd", "efgh", "ij"}},
25	}
26	for _, tt := range tests {
27		got := wrap(tt.text, tt.width)
28		uassert.Equal(t, len(tt.want), len(got), tt.name+": line count")
29		for i := range tt.want {
30			uassert.Equal(t, tt.want[i], got[i], tt.name+": line "+tt.want[i])
31		}
32		// no wrapped line exceeds width
33		for _, ln := range got {
34			uassert.True(t, len(ln) <= tt.width, tt.name+": within width")
35		}
36	}
37}
38
39func TestBorderChars(t *testing.T) {
40	l, r := borderChars(0, 1)
41	uassert.Equal(t, "<", l)
42	uassert.Equal(t, ">", r)
43
44	l, r = borderChars(0, 3)
45	uassert.Equal(t, "/", l)
46	uassert.Equal(t, "\\", r)
47
48	l, r = borderChars(1, 3)
49	uassert.Equal(t, "|", l)
50	uassert.Equal(t, "|", r)
51
52	l, r = borderChars(2, 3)
53	uassert.Equal(t, "\\", l)
54	uassert.Equal(t, "/", r)
55}
56
57func TestMaxLen(t *testing.T) {
58	uassert.Equal(t, 0, maxLen([]string{""}))
59	uassert.Equal(t, 5, maxLen([]string{"ab", "cde", "fghij"}))
60}
61
62func TestSayDefault(t *testing.T) {
63	got := Say("")
64	uassert.True(t, strings.Contains(got, defaultMessage), "uses default message")
65	uassert.True(t, strings.Contains(got, "(oo)"), "contains cow face")
66	uassert.True(t, strings.Contains(got, "< Moo! >"), "single-line bubble")
67}
68
69func TestSayWrapsMultiline(t *testing.T) {
70	msg := "the quick brown fox jumps over the lazy dog many many times over"
71	got := Say(msg)
72	// multi-line bubbles use slashes, never the single-line angle brackets
73	uassert.True(t, strings.Contains(got, "/"), "multi-line top border char")
74	uassert.False(t, strings.Contains(got, "< "), "no single-line marker")
75}