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17a74ddd3d
PR-URL: https://github.com/nodejs/node/pull/49639 Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com> Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
53 lines
1.8 KiB
JavaScript
53 lines
1.8 KiB
JavaScript
// Copyright 2022 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Flags: --expose-externalize-string --harmony-string-is-well-formed
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(function TestIsWellFormed() {
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const short2ByteWellFormed = createExternalizableString(
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'\u1234'.padEnd(kExternalStringMinTwoByteLength, '\u1234'));
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const short2ByteIllFormed = createExternalizableString(
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'\uD83D'.padEnd(kExternalStringMinTwoByteLength, '\uD83D'));
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assertTrue(short2ByteWellFormed.isWellFormed());
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assertFalse(short2ByteIllFormed.isWellFormed());
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try {
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// Turn the strings into uncached external strings to hit the slow runtime
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// path.
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externalizeString(short2ByteWellFormed);
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externalizeString(short2ByteIllFormed);
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} catch (e) {
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}
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assertTrue(short2ByteWellFormed.isWellFormed());
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assertFalse(short2ByteIllFormed.isWellFormed());
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})();
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(function TestToWellFormed() {
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const short2ByteWellFormed = createExternalizableString(
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'\u1234'.padEnd(kExternalStringMinTwoByteLength, '\u1234'));
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const short2ByteIllFormed = createExternalizableString(
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'\uD83D'.padEnd(kExternalStringMinTwoByteLength, '\uD83D'));
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assertTrue(short2ByteWellFormed.isWellFormed());
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assertFalse(short2ByteIllFormed.isWellFormed());
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try {
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// Turn the strings into uncached external strings to hit the slow runtime
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// path.
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externalizeString(short2ByteWellFormed);
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externalizeString(short2ByteIllFormed);
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} catch (e) {
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}
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assertEquals(
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'\u1234'.padEnd(kExternalStringMinTwoByteLength, '\u1234'),
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short2ByteWellFormed.toWellFormed());
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// U+FFFD (REPLACEMENT CHARACTER)
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assertEquals(
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'\uFFFD'.padEnd(kExternalStringMinTwoByteLength, '\uFFFD'),
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short2ByteIllFormed.toWellFormed());
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})();
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