1// Copyright 2015 The Go Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style
3// license that can be found in the LICENSE file.
4
5package internal
6
7import (
8	"testing"
9
10	"golang.org/x/text/language"
11)
12
13func TestParents(t *testing.T) {
14	testCases := []struct {
15		tag, parent string
16	}{
17		{"af", "und"},
18		{"en", "und"},
19		{"en-001", "en"},
20		{"en-AU", "en-001"},
21		{"en-US", "en"},
22		{"en-US-u-va-posix", "en-US"},
23		{"ca-ES-valencia", "ca-ES"},
24	}
25	for _, tc := range testCases {
26		tag, ok := language.CompactIndex(language.MustParse(tc.tag))
27		if !ok {
28			t.Fatalf("Could not get index of flag %s", tc.tag)
29		}
30		want, ok := language.CompactIndex(language.MustParse(tc.parent))
31		if !ok {
32			t.Fatalf("Could not get index of parent %s of tag %s", tc.parent, tc.tag)
33		}
34		if got := int(Parent[tag]); got != want {
35			t.Errorf("Parent[%s] = %d; want %d (%s)", tc.tag, got, want, tc.parent)
36		}
37	}
38}
39