59 lines
1.5 KiB
JavaScript
59 lines
1.5 KiB
JavaScript
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// Copyright 2016 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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(function testSmiArrayConcat() {
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var result = [].concat([-12]);
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assertEquals(1, result.length);
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assertEquals([-12], result);
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})();
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(function testDoubleArrayConcat() {
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var result = [].concat([-1073741825]);
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assertEquals(1, result.length);
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assertEquals([-1073741825], result);
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})();
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(function testSmiArrayNonConcatSpreadable() {
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var array = [-10];
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array[Symbol.isConcatSpreadable] = false;
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var result = [].concat(array);
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assertEquals(1, result.length);
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assertEquals(1, result[0].length);
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assertEquals([-10], result[0]);
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})();
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(function testDoubleArrayNonConcatSpreadable() {
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var array = [-1073741825];
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array[Symbol.isConcatSpreadable] = false;
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var result = [].concat(array);
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assertEquals(1, result.length);
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assertEquals(1, result[0].length);
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assertEquals([-1073741825], result[0]);
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})();
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Array.prototype[Symbol.isConcatSpreadable] = false;
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(function testSmiArray() {
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var result = [].concat([-12]);
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assertEquals(2, result.length);
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assertEquals(0, result[0].length);
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assertEquals(1, result[1].length);
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assertEquals([-12], result[1]);
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})();
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(function testDoubleArray() {
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var result = [].concat([-1073741825]);
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assertEquals(2, result.length);
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assertEquals(0, result[0].length);
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assertEquals(1, result[1].length);
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assertEquals([-1073741825], result[1]);
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})();
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