package parser

import (
	"reflect"
	"sort"
	"strings"
	"testing"
)

func TestParseHosts(t *testing.T) {
	test := `##
# Host Database
#
# localhost is used to configure the loopback interface
# when the system is booting.  Do not change this entry.
##
127.0.0.1       localhost dragon dragon.local dragon.maze.network
255.255.255.255 broadcasthost
::1             localhost
ff00::1         multicast
1.2.3.4
`
	want := []string{"broadcasthost", "dragon", "dragon.local", "dragon.maze.network", "localhost", "multicast"}

	parsed, ignored, err := ParseDomains(strings.NewReader(test))
	if err != nil {
		t.Fatal(err)
		return
	}

	sort.Strings(parsed)
	if !reflect.DeepEqual(parsed, want) {
		t.Errorf("expected ParseDomains(hosts) to return %v, got %v", want, parsed)
	}
	if ignored != 1 {
		t.Errorf("expected 1 ignored, got %d", ignored)
	}
}