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54 lines
2.4 KiB
JavaScript
54 lines
2.4 KiB
JavaScript
// Copyright 2008 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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// A reduced test case from Acid3 test 95.
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// When an object is assigned to an array length field,
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// it is converted to a number.
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function CheckSetArrayLength(x, expected) {
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var a = [];
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a.length = x;
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assertEquals("number", typeof a.length);
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assertEquals(expected, a.length);
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}
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CheckSetArrayLength(2147483648, 2147483648);
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CheckSetArrayLength("2147483648", 2147483648);
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CheckSetArrayLength(null, 0);
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CheckSetArrayLength(false, 0);
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CheckSetArrayLength(true, 1);
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CheckSetArrayLength({valueOf : function() { return 42; }}, 42);
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CheckSetArrayLength({toString : function() { return '42'; }}, 42);
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// Test invalid values
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assertThrows("var y = []; y.length = 'abc';");
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assertThrows("var y = []; y.length = undefined;");
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assertThrows("var y = []; y.length = {};");
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assertThrows("var y = []; y.length = -1;");
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assertThrows("var y = []; y.length = {valueOf:function() { throw new Error(); }};");
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