description( 'This test checks that setting a non-object, non-null value for __proto__ does not lead to a crash when next setting a property on the object. This was reported as bug 17925.' ); x = {}; originalProto = x.__proto__; x.__proto__ = 1; shouldBe("x.__proto__", "originalProto"); x.someProperty = 1; debug('If we got to this point then we did not crash and the test has passed.');