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
|
package pflag
import (
"bytes"
"io"
"testing"
)
const expectedOutput = ` --long-form Some description
--long-form2 Some description
with multiline
-s, --long-name Some description
-t, --long-name2 Some description with
multiline
`
func setUpPFlagSet(buf io.Writer) *FlagSet {
f := NewFlagSet("test", ExitOnError)
f.Bool("long-form", false, "Some description")
f.Bool("long-form2", false, "Some description\n with multiline")
f.BoolP("long-name", "s", false, "Some description")
f.BoolP("long-name2", "t", false, "Some description with\n multiline")
f.SetOutput(buf)
return f
}
func TestPrintUsage(t *testing.T) {
buf := bytes.Buffer{}
f := setUpPFlagSet(&buf)
f.PrintDefaults()
res := buf.String()
if res != expectedOutput {
t.Errorf("Expected \n%s \nActual \n%s", expectedOutput, res)
}
}
func setUpPFlagSet2(buf io.Writer) *FlagSet {
f := NewFlagSet("test", ExitOnError)
f.Bool("long-form", false, "Some description")
f.Bool("long-form2", false, "Some description\n with multiline")
f.BoolP("long-name", "s", false, "Some description")
f.BoolP("long-name2", "t", false, "Some description with\n multiline")
f.StringP("some-very-long-arg", "l", "test", "Some very long description having break the limit")
f.StringP("other-very-long-arg", "o", "long-default-value", "Some very long description having break the limit")
f.String("some-very-long-arg2", "very long default value", "Some very long description\nwith line break\nmultiple")
f.SetOutput(buf)
return f
}
const expectedOutput2 = ` --long-form Some description
--long-form2 Some description
with multiline
-s, --long-name Some description
-t, --long-name2 Some description with
multiline
-o, --other-very-long-arg string Some very long description having
break the limit (default
"long-default-value")
-l, --some-very-long-arg string Some very long description having
break the limit (default "test")
--some-very-long-arg2 string Some very long description
with line break
multiple (default "very long default
value")
`
func TestPrintUsage_2(t *testing.T) {
buf := bytes.Buffer{}
f := setUpPFlagSet2(&buf)
res := f.FlagUsagesWrapped(80)
if res != expectedOutput2 {
t.Errorf("Expected \n%q \nActual \n%q", expectedOutput2, res)
}
}
|
