41903f2af6
Split up the test so each test runs in a fresh Isolate with pristine protector state. Note that testArrayConcatES5 was not split out because it is a duplicate of mjsunit/array-concat.js, and testConcatRevokedProxy has already been split out as mjsunit/es6/array-concat-revocable-revoked-proxy-[12].js. Bug: v8:9837 Change-Id: I8f744b0263c82f1dae61a55032124d9129f8e6f3 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1864007 Reviewed-by: Jakob Kummerow <jkummerow@chromium.org> Commit-Queue: Shu-yu Guo <syg@chromium.org> Cr-Commit-Position: refs/heads/master@{#64366}
27 lines
896 B
JavaScript
27 lines
896 B
JavaScript
// Copyright 2014 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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"use strict";
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var num = new Number(true)
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// Number wrapper objects are not concat-spreadable by default
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assertEquals([num], [].concat(num));
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// Number wrapper objects may be individually concat-spreadable
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num[Symbol.isConcatSpreadable] = true;
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num.length = 3;
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num[0] = 1, num[1] = 2, num[2] = 3;
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assertEquals([1, 2, 3], [].concat(num));
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Number.prototype[Symbol.isConcatSpreadable] = true;
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// Number wrapper objects may be concat-spreadable
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assertEquals([], [].concat(new Number(123)));
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Number.prototype[0] = 1;
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Number.prototype[1] = 2;
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Number.prototype[2] = 3;
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Number.prototype.length = 3;
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assertEquals([1,2,3], [].concat(new Number(123)));
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// Number values are never concat-spreadable
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assertEquals([true], [].concat(true));
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