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Require String.prototype.localeCompare to check for canonical equivalence

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Richard Gibson 2022-03-23 00:17:23 -04:00 committed by Rick Waldron
parent 3eea1a7959
commit 3ab8adc237
1 changed files with 17 additions and 25 deletions
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42
test/built-ins/String/prototype/localeCompare/15.5.4.9_CE.js vendored
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@ -1,15 +1,21 @@
// Copyright 2012 Norbert Lindenberg. All rights reserved.
// Copyright 2012 Mozilla Corporation. All rights reserved.
// Copyright 2013 Microsoft Corporation. All rights reserved.
// Copyright (C) 2022 Richard Gibson. All rights reserved.
// This code is governed by the license found in the LICENSE file.
/*---
es5id: 15.5.4.9_CE
description: >
Tests that String.prototype.localeCompare returns 0 when
comparing Strings that are considered canonically equivalent by
the Unicode standard.
author: Norbert Lindenberg
String.prototype.localeCompare must return 0 when
comparing Strings that are considered canonically equivalent by
the Unicode Standard.
esid: sec-string.prototype.localecompare
info: |
String.prototype.localeCompare ( _that_ [ , _reserved1_ [ , _reserved2_ ] ] )
This function must treat Strings that are canonically equivalent
according to the Unicode standard as identical and must return `0`
when comparing Strings that are considered canonically equivalent.
---*/
// pairs with characters not in Unicode 3.0 are commented out
@ -49,26 +55,12 @@ var pairs = [
// ["\uD87E\uDC2B", "北"]
];
// Detect whether we are using locale-sensitive comparisons or a bitwise comparison
if ("a".localeCompare("Z") < 0) {
// We are using locale-sensitive comparison, so all pairs should be canonically equivalent
var i;
for (i = 0; i < pairs.length; i++) {
var pair = pairs[i];
if (pair[0].localeCompare(pair[1]) !== 0) {
throw new Test262Error("String.prototype.localeCompare considers " + pair[0] + " (" + toU(pair[0]) +
") ≠ " + pair[1] + " (" + toU(pair[1]) + ").");
}
}
} else {
// We are using bitwise comparison, so all pairs should not be equivalent
var i;
for (i = 0; i < pairs.length; i++) {
var pair = pairs[i];
if (pair[0].localeCompare(pair[1]) === 0) {
throw new Test262Error("String.prototype.localeCompare considers " + pair[0] + " (" + toU(pair[0]) +
") = " + pair[1] + " (" + toU(pair[1]) + ").");
}
var i;
for (i = 0; i < pairs.length; i++) {
var pair = pairs[i];
if (pair[0].localeCompare(pair[1]) !== 0) {
throw new Test262Error("String.prototype.localeCompare considers " + pair[0] + " (" + toU(pair[0]) +
") ≠ " + pair[1] + " (" + toU(pair[1]) + ").");
}
}