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452c0e5c61
* Automated assertion message update: Array.from * Automated assertion message update: Array.isArray * Automated assertion message update: Array length property * Automated assertion message update: Array.of * Automated assertion message update: Array * Automated assertion message update: Array.prototype.at * Automated assertion message update: Array.prototype.concat * Automated assertion message update: compareArray -> assert.compareArray
27 lines
1013 B
JavaScript
27 lines
1013 B
JavaScript
// Copyright 2009 the Sputnik authors. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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info: |
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A property name P (in the form of a string value) is an array index
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if and only if ToString(ToUint32(P)) is equal to P and ToUint32(P) is not equal to 2^32 - 1
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es5id: 15.4_A1.1_T2
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description: Checking for number primitive
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---*/
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var x = [];
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x[NaN] = 1;
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assert.sameValue(x[0], undefined, 'The value of x[0] is expected to equal undefined');
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assert.sameValue(x["NaN"], 1, 'The value of x["NaN"] is expected to be 1');
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var y = [];
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y[Number.POSITIVE_INFINITY] = 1;
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assert.sameValue(y[0], undefined, 'The value of y[0] is expected to equal undefined');
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assert.sameValue(y["Infinity"], 1, 'The value of y["Infinity"] is expected to be 1');
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var z = [];
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z[Number.NEGATIVE_INFINITY] = 1;
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assert.sameValue(z[0], undefined, 'The value of z[0] is expected to equal undefined');
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assert.sameValue(z["-Infinity"], 1, 'The value of z["-Infinity"] is expected to be 1');
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