michael@0: /*
michael@0:  * Any copyright is dedicated to the Public Domain.
michael@0:  * http://creativecommons.org/licenses/publicdomain/
michael@0:  * Contributor: Jason Orendorff
michael@0:  */
michael@0: 
michael@0: // This test appeared in bug 497789 comment 78.
michael@0: 
michael@0: var a = {x: 'a'},
michael@0:     b1 = Object.create(a),
michael@0:     c1 = Object.create(b1),
michael@0:     b2 = Object.create(a),
michael@0:     c2 = Object.create(b2);
michael@0: 
michael@0: b2.x = 'b';  // foreshadowing a.x
michael@0: 
michael@0: var s = '';
michael@0: for each (var obj in [c1, c2])
michael@0:     s += obj.x;
michael@0: assertEq(s, 'ab');
michael@0: 
michael@0: reportCompare(0, 0, "Property cache soundness: objects with the same shape but different prototypes.");