Files
kong/options_test.go
T
Alec Thomas 29fe92f286 Only reset grammar when Apply()ing.
Also add a Kong.Help() function for writing context-sensitive help.
2018-06-13 12:10:04 +10:00

50 lines
1.1 KiB
Go

package kong
import (
"encoding/json"
"io/ioutil"
"os"
"testing"
"github.com/stretchr/testify/require"
)
func TestOptions(t *testing.T) {
var cli struct{}
p, err := New(&cli, Name("name"), Description("description"), Writers(nil, nil), Exit(nil))
require.NoError(t, err)
require.Equal(t, "name", p.Model.Name)
require.Equal(t, "description", p.Model.Help)
require.Nil(t, p.Stdout)
require.Nil(t, p.Stderr)
require.Nil(t, p.Exit)
}
func TestConfigLoading(t *testing.T) {
first, err := ioutil.TempFile("", "")
require.NoError(t, err)
defer first.Close()
defer os.Remove(first.Name())
second, err := ioutil.TempFile("", "")
require.NoError(t, err)
defer second.Close()
defer os.Remove(second.Name())
var cli struct {
Flag string `json:"flag,omitempty"`
}
cli.Flag = "first"
err = json.NewEncoder(first).Encode(&cli)
require.NoError(t, err)
cli.Flag = ""
err = json.NewEncoder(second).Encode(&cli)
require.NoError(t, err)
p := mustNew(t, &cli, Configuration(JSON, first.Name(), second.Name()))
_, err = p.Parse(nil)
require.NoError(t, err)
require.Equal(t, "first", cli.Flag)
}