humanize_test.gno

 1package humanize
 2
 3import (
 4	"testing"
 5
 6	"gno.land/p/nt/uassert/v0"
 7)
 8
 9func TestBytes(t *testing.T) {
10	cases := []struct {
11		in   int64
12		want string
13	}{
14		{0, "0 B"},
15		{999, "999 B"},
16		{1023, "1023 B"},
17		{1024, "1 KiB"},
18		{1536, "1.5 KiB"},
19		{1048576, "1 MiB"},
20		{1572864, "1.5 MiB"},
21		{1073741824, "1 GiB"},
22		{-1536, "-1.5 KiB"},
23		{-10, "-10 B"},
24	}
25	for _, c := range cases {
26		uassert.Equal(t, c.want, Bytes(c.in))
27	}
28}
29
30func TestComma(t *testing.T) {
31	cases := []struct {
32		in   int64
33		want string
34	}{
35		{0, "0"}, {1, "1"}, {999, "999"}, {1000, "1,000"},
36		{1234567, "1,234,567"}, {-1234567, "-1,234,567"},
37	}
38	for _, c := range cases {
39		uassert.Equal(t, c.want, Comma(c.in))
40	}
41}
42
43// The teens are the trap: 11/12/13 take "th" despite ending in 1/2/3.
44func TestOrdinalTeens(t *testing.T) {
45	cases := []struct {
46		in   int64
47		want string
48	}{
49		{1, "1st"}, {2, "2nd"}, {3, "3rd"}, {4, "4th"},
50		{11, "11th"}, {12, "12th"}, {13, "13th"},
51		{21, "21st"}, {22, "22nd"}, {23, "23rd"},
52		{111, "111th"}, {112, "112th"}, {113, "113th"},
53		{101, "101st"}, {0, "0th"},
54	}
55	for _, c := range cases {
56		uassert.Equal(t, c.want, Ordinal(c.in))
57	}
58}
59
60func TestPlural(t *testing.T) {
61	uassert.Equal(t, "1 block", Plural(1, "block", ""))
62	uassert.Equal(t, "2 blocks", Plural(2, "block", ""))
63	uassert.Equal(t, "0 blocks", Plural(0, "block", ""))
64	uassert.Equal(t, "2 mice", Plural(2, "mouse", "mice"))
65	uassert.Equal(t, "-1 block", Plural(-1, "block", ""))
66}
67
68func TestBlocks(t *testing.T) {
69	uassert.Equal(t, "now", Blocks(0))
70	uassert.Equal(t, "1 block", Blocks(1))
71	uassert.Equal(t, "9 blocks", Blocks(9))
72	uassert.Equal(t, "~10 blocks", Blocks(15))
73	uassert.Equal(t, "~1,200 blocks", Blocks(1234))
74	uassert.Equal(t, "in the past", Blocks(-5))
75}
76
77// Truncate counts runes, so multi-byte text is never cut mid-character.
78func TestTruncateCountsRunes(t *testing.T) {
79	uassert.Equal(t, "hello", Truncate("hello", 10))
80	uassert.Equal(t, "hell…", Truncate("hello!", 5))
81	uassert.Equal(t, "…", Truncate("hello", 1))
82	uassert.Equal(t, "", Truncate("hello", 0))
83	uassert.Equal(t, "éé", Truncate("éé", 2))
84	uassert.Equal(t, "é…", Truncate("ééé", 2)) // not sliced mid-rune
85}