}
shouldBe("imageData.data['foo']='garbage',imageData.data['foo']", "'garbage'");
-shouldBe("imageData.data[-1]='garbage',imageData.data[-1]", "'garbage'");
+shouldBe("imageData.data[-1]='garbage',imageData.data[-1]", "undefined");
shouldBe("imageData.data[17]='garbage',imageData.data[17]", "undefined");