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
|
package arguments
import (
"strings"
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func split(s string) []string {
return strings.Split(s, " ")
}
func TestStringSingle(t *testing.T) {
var args struct {
Foo string
}
err := ParseFrom(&args, split("--foo bar"))
require.NoError(t, err)
assert.Equal(t, "bar", args.Foo)
}
func TestMixed(t *testing.T) {
var args struct {
Foo string `arg:"-f"`
Bar int
Ham bool
Spam float32
}
args.Bar = 3
err := ParseFrom(&args, split("-spam=1.2 -ham -f xyz"))
require.NoError(t, err)
assert.Equal(t, "xyz", args.Foo)
assert.Equal(t, 3, args.Bar)
assert.Equal(t, true, args.Ham)
assert.Equal(t, 1.2, args.Spam)
}
func TestRequired(t *testing.T) {
var args struct {
Foo string `arg:"required"`
}
err := ParseFrom(&args, nil)
require.Error(t, err, "--foo is required")
}
func TestShortFlag(t *testing.T) {
var args struct {
Foo string `arg:"-f"`
}
err := ParseFrom(&args, split("-f xyz"))
require.NoError(t, err)
assert.Equal(t, "xyz", args.Foo)
err = ParseFrom(&args, split("-foo xyz"))
require.NoError(t, err)
assert.Equal(t, "xyz", args.Foo)
err = ParseFrom(&args, split("--foo xyz"))
require.NoError(t, err)
assert.Equal(t, "xyz", args.Foo)
}
func TestCaseSensitive(t *testing.T) {
var args struct {
Lower bool `arg:"-v"`
Upper bool `arg:"-V"`
}
err := ParseFrom(&args, split("-v"))
require.NoError(t, err)
assert.True(t, args.Lower)
assert.False(t, args.Upper)
}
func TestCaseSensitive2(t *testing.T) {
var args struct {
Lower bool `arg:"-v"`
Upper bool `arg:"-V"`
}
err := ParseFrom(&args, split("-V"))
require.NoError(t, err)
assert.False(t, args.Lower)
assert.True(t, args.Upper)
}
|
