go-arg/parse_test.go

89 lines
1.7 KiB
Go
Raw Normal View History

2015-10-31 18:15:24 -05:00
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)
}