description( "This test case checks whether variables cause properties to be defined even before reaching the declaration statement in various cases." ); shouldBeTrue('this.hasOwnProperty("foo")'); var foo = 3; delete bar; shouldBeTrue('this.hasOwnProperty("bar")'); var bar = 3; var firstEvalResult = eval('var result = this.hasOwnProperty("y"); var y = 3; result'); shouldBeTrue("firstEvalResult"); var secondEvalResult = eval('delete x; var result = this.hasOwnProperty("x"); var x = 3; result'); shouldBeFalse("secondEvalResult"); var thirdEvalResult = false; try { thirdEvalResult = (function(){ var x=false; try { throw ""; } catch (e) { eval("var x = true;"); } return x; })(); } catch (e) { thirdEvalResult = "Threw exception!"; } shouldBeTrue("thirdEvalResult"); // Check that the correct this value is passed to a function called having been caught from a throw, where the catch block contains an eval (bug#). function checkThis() { "use strict"; return this === undefined; } function testEvalInCatch() { try { throw checkThis; } catch(e) { eval(''); return e(); } return false; } shouldBeTrue("testEvalInCatch()");