| /* |
| * Any copyright is dedicated to the Public Domain. |
| * http://creativecommons.org/licenses/publicdomain/ |
| * Contributor: |
| * Jeff Walden <jwalden+code@mit.edu> |
| */ |
| |
| //----------------------------------------------------------------------------- |
| var BUGNUMBER = 600392; |
| var summary = |
| 'Object.preventExtensions([]).length = 0 should do nothing, not throw'; |
| |
| print(BUGNUMBER + ": " + summary); |
| |
| /************** |
| * BEGIN TEST * |
| **************/ |
| |
| |
| function testEmpty() |
| { |
| var a = []; |
| assertEq(a.length, 0); |
| assertEq(Object.preventExtensions(a), a); |
| assertEq(a.length, 0); |
| a.length = 0; |
| assertEq(a.length, 0); |
| } |
| testEmpty(); |
| |
| function testEmptyStrict() |
| { |
| "use strict"; |
| var a = []; |
| assertEq(a.length, 0); |
| assertEq(Object.preventExtensions(a), a); |
| assertEq(a.length, 0); |
| a.length = 0; |
| assertEq(a.length, 0); |
| } |
| testEmptyStrict(); |
| |
| function testNonEmpty() |
| { |
| var a = [1, 2, 3]; |
| assertEq(a.length, 3); |
| assertEq(Object.preventExtensions(a), a); |
| assertEq(a.length, 3); |
| a.length = 0; |
| assertEq(a.length, 0); |
| } |
| testNonEmpty(); |
| |
| function testNonEmptyStrict() |
| { |
| "use strict"; |
| var a = [1, 2, 3]; |
| assertEq(a.length, 3); |
| assertEq(Object.preventExtensions(a), a); |
| assertEq(a.length, 3); |
| a.length = 0; |
| assertEq(a.length, 0); |
| } |
| testNonEmptyStrict(); |
| |
| /******************************************************************************/ |
| |
| if (typeof reportCompare === "function") |
| reportCompare(true, true); |
| |
| print("All tests passed!"); |