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