+derived2 = new Derived2();
+
+shouldBe("derived2 instanceof Derived2", true);
+shouldBe("derived2 instanceof Derived", true);
+shouldBe("derived2 instanceof Base", true);
+
+// base properties and functions return 1 when called/gotten; derived, 2
+shouldBe("derived2.baseProtoDup()", 2);
+shouldBe("derived2.baseProto()", 1);
+shouldBe("derived2.baseDup", 2);
+shouldBe("derived2.baseOnly", 1);
+shouldBe("derived2.protoOnly()", 2);
+shouldBe("derived2.protoDup", 2);
+shouldBe("derived2.derivedOnly", 2)
+
+// base properties throw 1 when set; derived, 2
+shouldBe("derived2.baseDup = 0", 2);
+shouldBe("derived2.baseOnly = 0", 1);
+shouldBe("derived2.derivedOnly = 0", 2)
+shouldBe("derived2.protoDup = 0", 2);
+
+shouldBe('Object.getOwnPropertyDescriptor(derived, "baseProto")', undefined);
+shouldBe('Object.getOwnPropertyDescriptor(derived, "baseProtoDup")', undefined);
+var baseDupDescriptor = Object.getOwnPropertyDescriptor(derived, "baseDup");
+shouldBe('typeof baseDupDescriptor', "object");
+shouldBe('baseDupDescriptor.value', derived.baseDup);
+shouldBe('baseDupDescriptor.configurable', true);
+shouldBe('baseDupDescriptor.enumerable', false);
+var baseOnlyDescriptor = Object.getOwnPropertyDescriptor(derived, "baseOnly");
+shouldBe('typeof baseOnlyDescriptor', "object");
+shouldBe('baseOnlyDescriptor.value', derived.baseOnly);
+shouldBe('baseOnlyDescriptor.configurable', true);
+shouldBe('baseOnlyDescriptor.enumerable', false);
+shouldBe('Object.getOwnPropertyDescriptor(derived, "protoOnly")', undefined);
+var protoDupDescriptor = Object.getOwnPropertyDescriptor(derived, "protoDup");
+shouldBe('typeof protoDupDescriptor', "object");
+shouldBe('protoDupDescriptor.value', derived.protoDup);
+shouldBe('protoDupDescriptor.configurable', true);
+shouldBe('protoDupDescriptor.enumerable', false);
+var derivedOnlyDescriptor = Object.getOwnPropertyDescriptor(derived, "derivedOnly");
+shouldBe('typeof derivedOnlyDescriptor', "object");
+shouldBe('derivedOnlyDescriptor.value', derived.derivedOnly);
+shouldBe('derivedOnlyDescriptor.configurable', true);
+shouldBe('derivedOnlyDescriptor.enumerable', false);
+