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
|
package complete
import (
"flag"
"fmt"
"strconv"
"testing"
)
func TestFlags(t *testing.T) {
t.Parallel()
var (
tr boolValue = true
fl boolValue = false
)
fs := flag.NewFlagSet("test", flag.ExitOnError)
fs.Var(&tr, "foo", "")
fs.Var(&fl, "bar", "")
fs.String("foo-bar", "", "")
cmp := FlagSet(fs)
Test(t, cmp, "", []string{"-foo", "-bar", "-foo-bar", "-h"})
Test(t, cmp, "-foo", []string{"-foo", "-foo-bar"})
Test(t, cmp, "-foo ", []string{"false"})
Test(t, cmp, "-foo=", []string{"false"})
Test(t, cmp, "-bar ", []string{"-foo", "-bar", "-foo-bar", "-h"})
Test(t, cmp, "-bar=", []string{})
}
type boolValue bool
func (b *boolValue) Set(s string) error {
v, err := strconv.ParseBool(s)
if err != nil {
return fmt.Errorf("bad value %q for bool flag", s)
}
*b = boolValue(v)
return nil
}
func (b *boolValue) Get() interface{} { return bool(*b) }
func (b *boolValue) String() string { return strconv.FormatBool(bool(*b)) }
func (b *boolValue) IsBoolFlag() bool { return true }
func (b *boolValue) Predict(_ string) []string {
// If false, typing the bool flag is expected to turn it on, so there is nothing to complete
// after the flag.
if *b == false {
return nil
}
// Otherwise, suggest only to turn it off.
return []string{"false"}
}
|
