1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
|
package strings
import (
"strings"
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestIndent(t *testing.T) {
in := "hello\nworld\n!"
expected := " hello\n world\n !"
actual, err := Indent(1, " ", in)
require.NoError(t, err)
require.Equal(t, expected, actual)
actual, err = Indent(1, " ", "\n")
require.NoError(t, err)
require.Equal(t, "\n", actual)
actual, err = Indent(1, " ", "foo\n")
require.NoError(t, err)
require.Equal(t, " foo\n", actual)
actual, err = Indent(1, " ", "foo")
require.NoError(t, err)
require.Equal(t, " foo", actual)
actual, err = Indent(3, " ", "foo")
require.NoError(t, err)
require.Equal(t, " foo", actual)
// error cases
_, err = Indent(3, "\n", "foo")
require.Error(t, err)
_, err = Indent(-1, " ", in)
require.Error(t, err)
_, err = Indent(0, " ", in)
require.Error(t, err)
}
func BenchmarkIndent(b *testing.B) {
actual := "hello\nworld\n!"
longString := strings.Repeat("a fairly long string \n", 20)
outs := make([]string, b.N*8)
b.ResetTimer()
for i := range b.N {
outs[0+i*8], _ = Indent(20, " ", longString)
outs[1+i*8], _ = Indent(-1, " ", actual)
outs[2+i*8], _ = Indent(1, " ", actual)
outs[3+i*8], _ = Indent(1, " ", "\n")
outs[4+i*8], _ = Indent(1, " ", "foo\n")
outs[5+i*8], _ = Indent(1, " ", "foo")
outs[6+i*8], _ = Indent(3, " ", "foo")
outs[7+i*8], _ = Indent(3, "\n", "foo")
}
b.StopTimer()
if len(outs) != b.N*8 {
b.Fail()
}
}
func TestTrunc(t *testing.T) {
assert.Equal(t, "", Trunc(5, ""))
assert.Equal(t, "", Trunc(0, "hello, world"))
assert.Equal(t, "hello", Trunc(5, "hello, world"))
assert.Equal(t, "hello, world", Trunc(12, "hello, world"))
assert.Equal(t, "hello, world", Trunc(42, "hello, world"))
assert.Equal(t, "hello, world", Trunc(-1, "hello, world"))
}
func TestShellQuote(t *testing.T) {
assert.Equal(t, `''`, ShellQuote(``))
assert.Equal(t, `'foo'`, ShellQuote(`foo`))
assert.Equal(t, `'hello "world"'`, ShellQuote(`hello "world"`))
assert.Equal(t, `'it'"'"'s its'`, ShellQuote(`it's its`))
}
func TestSort(t *testing.T) {
in := []string{}
expected := []string{}
assert.EqualValues(t, expected, Sort(in))
in = []string{"c", "a", "b"}
expected = []string{"a", "b", "c"}
assert.EqualValues(t, expected, Sort(in))
in = []string{"42", "45", "18"}
expected = []string{"18", "42", "45"}
assert.EqualValues(t, expected, Sort(in))
}
func TestCaseFuncs(t *testing.T) {
testdata := []struct{ in, s, k, c string }{
{" Foo bar ", "Foo_bar", "Foo-bar", "FooBar"},
{"foo bar", "foo_bar", "foo-bar", "fooBar"},
{" baz\tqux ", "baz_qux", "baz-qux", "bazQux"},
{"Hello, World!", "Hello_world", "Hello-world", "HelloWorld"},
{"grüne | Straße", "grüne_straße", "grüne-straße", "grüneStraße"},
}
for _, d := range testdata {
assert.Equal(t, d.s, SnakeCase(d.in))
assert.Equal(t, d.k, KebabCase(d.in))
assert.Equal(t, d.c, CamelCase(d.in))
}
}
func TestWordWrap(t *testing.T) {
in := "a short line that needs no wrapping"
assert.Equal(t, in, WordWrap(in, WordWrapOpts{Width: 40}))
in = "a short line that needs wrapping"
out := `a short
line that
needs
wrapping`
assert.Equal(t, out, WordWrap(in, WordWrapOpts{Width: 9}))
in = "a short line that needs wrapping"
out = `a short \
line that \
needs \
wrapping`
assert.Equal(t, out, WordWrap(in, WordWrapOpts{Width: 9, LBSeq: " \\\n"}))
out = `There shouldn't be any wrapping of long words or URLs because that would break
things very badly. To wit:
https://example.com/a/super-long/url/that-shouldnt-be?wrapped=for+fear+of#the-breaking-of-functionality
should appear on its own line, regardless of the desired word-wrapping width
that has been set.`
in = strings.ReplaceAll(out, "\n", " ")
assert.Equal(t, out, WordWrap(in, WordWrapOpts{}))
// TODO: get these working - need to switch to a word-wrapping package that
// can handle multi-byte characters!
//
// out = `ΤΟΙΣ πᾶσι χρόνος καὶ καιρὸς τῷ παντὶ πράγματι ὑπὸ τὸν οὐρανόν. καιρὸς τοῦ
// τεκεῖν καὶ καιρὸς τοῦ ἀποθανεῖν, καιρὸς τοῦ φυτεῦσαι καὶ καιρὸς τοῦ ἐκτῖλαι τὸ
// πεφυτευμένον, καιρὸς τοῦ ἀποκτεῖναι καὶ καιρὸς τοῦ ἰάσασθαι, καιρὸς τοῦ
// καθελεῖν καὶ καιρὸς τοῦ οἰκοδομεῖν, καιρὸς τοῦ κλαῦσαι καὶ καιρὸς τοῦ γελάσαι,
// καιρὸς τοῦ κόψασθαι καὶ καιρὸς τοῦ ὀρχήσασθαι, καιρὸς τοῦ βαλεῖν λίθους καὶ
// καιρὸς τοῦ συναγαγεῖν λίθους, καιρὸς τοῦ περιλαβεῖν καὶ καιρὸς τοῦ μακρυνθῆναι
// ἀπὸ περιλήψεως, καιρὸς τοῦ ζητῆσαι καὶ καιρὸς τοῦ ἀπολέσαι, καιρὸς τοῦ φυλάξαι
// καὶ καιρὸς τοῦ ἐκβαλεῖν, καιρὸς τοῦ ρῆξαι καὶ καιρὸς τοῦ ράψαι, καιρὸς τοῦ
// σιγᾶν καὶ καιρὸς τοῦ λαλεῖν, καιρὸς τοῦ φιλῆσαι καὶ καιρὸς τοῦ μισῆσαι, καιρὸς
// πολέμου καὶ καιρὸς εἰρήνης.`
// in = strings.ReplaceAll(out, "\n", " ")
// assert.Equal(t, out, WordWrap(in, WordWrapOpts{}))
// TODO: get these working - need to switch to a word-wrapping package that
// understands multi-byte and correctly identifies line-breaking opportunities
// for non-latin languages.
//
// out = `何事にも定まった時があります。
// 生まれる時、死ぬ時、植える時、収穫の時、
// 殺す時、病気が治る時、壊す時、やり直す時、
// 泣く時、笑う時、悲しむ時、踊る時、
// 石をばらまく時、石をかき集める時、
// 抱きしめる時、抱きしめない時、
// 何かを見つける時、物を失う時、
// 大切にしまっておく時、遠くに投げ捨てる時、
// 引き裂く時、修理する時、黙っている時、口を開く時、
// 愛する時、憎む時、戦う時、和解する時。`
// in = strings.ReplaceAll(out, "\n", " ")
// assert.Equal(t, out, WordWrap(in, WordWrapOpts{Width: 100}))
}
func TestSkipLines(t *testing.T) {
out, _ := SkipLines(2, "\nfoo\nbar\n\nbaz")
assert.Equal(t, "bar\n\nbaz", out)
out, _ = SkipLines(0, "foo\nbar\n\nbaz")
assert.Equal(t, "foo\nbar\n\nbaz", out)
_, err := SkipLines(-1, "foo\nbar\n\nbaz")
require.Error(t, err)
out, err = SkipLines(4, "foo\nbar\n\nbaz")
require.NoError(t, err)
assert.Equal(t, "", out)
}
|
