test262/test/built-ins/Array/length/S15.4.5.1_A1.1_T1.js

// Copyright 2009 the Sputnik authors.  All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
esid: sec-array-exotic-objects-defineownproperty-p-desc
info: If ToUint32(length) !== ToNumber(length), throw RangeError
es5id: 15.4.5.1_A1.1_T1
description: length in [4294967296, -1, 1.5]
---*/

try {
  var x = [];
  x.length = 4294967296;
  throw new Test262Error('#1.1: x = []; x.length = 4294967296 throw RangeError. Actual: x.length === ' + (x.length));
} catch (e) {
  assert.sameValue(
    e instanceof RangeError,
    true,
    'The result of evaluating (e instanceof RangeError) is expected to be true'
  );
}

try {
  x = [];
  x.length = -1;
  throw new Test262Error('#2.1: x = []; x.length = -1 throw RangeError. Actual: x.length === ' + (x.length));
} catch (e) {
  assert.sameValue(
    e instanceof RangeError,
    true,
    'The result of evaluating (e instanceof RangeError) is expected to be true'
  );
}

try {
  x = [];
  x.length = 1.5;
  throw new Test262Error('#3.1: x = []; x.length = 1.5 throw RangeError. Actual: x.length === ' + (x.length));
} catch (e) {
  assert.sameValue(
    e instanceof RangeError,
    true,
    'The result of evaluating (e instanceof RangeError) is expected to be true'
  );
}