package uci

import (
	"io/ioutil"
	"os"
	"testing"

	"github.com/andreyvit/diff"
	"github.com/pkg/errors"
)

func TestParser(t *testing.T) {
	data, err := ioutil.ReadFile("./testdata/openwrt_22.03.2_linksys_wrt1900ac-v2_default.conf")
	if err != nil {
		t.Fatal(errors.WithStack(err))
	}

	uci, err := Parse(data)
	if err != nil {
		t.Fatal(errors.WithStack(err))
	}

	exported := uci.Export()

	if e, g := string(data), exported; e != g {
		t.Errorf("uci.Export(): %s", diff.LineDiff(e, g))
	}

	err = ioutil.WriteFile(
		"./testdata/exported/openwrt_22.03.2_linksys_wrt1900ac-v2_default.conf",
		[]byte(exported), os.ModePerm,
	)
	if err != nil {
		t.Error(errors.WithStack(err))
	}
}