1 // Copyright 2023 Igalia S.L. All rights reserved.
2 // This code is governed by the BSD license found in the LICENSE file.
4 esid: sec-Intl.DisplayNames.prototype.of
5 description: Throws a RangeError for invalid `region` codes
7 12.5.1 CanonicalCodeForDisplayNames ( code )
10 2. If type is "region", then
11 a. If code cannot be matched by the unicode_region_subtag Unicode locale nonterminal, throw a RangeError exception.
12 b. Return the ASCII-uppercase of code.
13 features: [Intl.DisplayNames]
16 // https://unicode.org/reports/tr35/#unicode_region_subtag
17 // unicode_region_subtag = (alpha{2} | digit{3}) ;
19 var displayNames = new Intl.DisplayNames(undefined, {type: 'region'});
21 assert.throws(RangeError, function() {
22 displayNames.of('00');
23 }, 'insufficient length, numeric');
25 assert.throws(RangeError, function() {
27 }, 'insufficient length, alpha');
29 assert.throws(RangeError, function() {
30 displayNames.of('aaa');
31 }, 'excessive length, alpha');
33 assert.throws(RangeError, function() {
34 displayNames.of('1111');
35 }, 'excessive length, numeric');
37 assert.throws(RangeError, function() {
41 assert.throws(RangeError, function() {
42 displayNames.of('a01');
43 }, 'mixed alphanumeric (alpha first, length 3)');
45 assert.throws(RangeError, function() {
46 displayNames.of('a1');
47 }, 'mixed alphanumeric (alpha first, length 2)');
49 assert.throws(RangeError, function() {
50 displayNames.of('1a');
51 }, 'mixed alphanumeric (numeric first, length 2)');
53 assert.throws(RangeError, function() {
54 displayNames.of('1a1');
55 }, 'mixed alphanumeric (numeric first, length 3)');
57 assert.throws(RangeError, function() {
58 displayNames.of('-111');
59 }, 'leading separator (dash)');
61 assert.throws(RangeError, function() {
62 displayNames.of('_111');
63 }, 'leading separator (underscore)');
65 assert.throws(RangeError, function() {
66 displayNames.of('111-');
67 }, 'trailing separator (dash)');
69 assert.throws(RangeError, function() {
70 displayNames.of('111-');
71 }, 'trailing separator (underscore)');
73 assert.throws(RangeError, function() {
74 displayNames.of(' aa');
77 assert.throws(RangeError, function() {
78 displayNames.of('aa ');
81 assert.throws(RangeError, function() {
82 displayNames.of('a c');
83 }, 'interstitial space');