(test 1): Object getOwnPropertyDescriptor throws TypeError when the first parameter is either null or undefined Success: Expected Object getOwnPropertyDescriptor throws TypeError when 1st parameter is null = true, got true Success: Expected Object getOwnPropertyDescriptor throws TypeError when 1st parameter is undefined = true, got true PASS (test 2): Freezing an object with deleted properties PASS (test 3): Object getOwnPropertyDescriptor works fine when the first parameter is a built-in type except null or undefined Success: Expected Object getOwnPropertyDescriptor does not throw when 1st parameter is boolean = undefined, got undefined Success: Expected Object getOwnPropertyDescriptor does not throw when 1st parameter is number = undefined, got undefined Success: Expected Object getOwnPropertyDescriptor works fine when 1st parameter is string = 3, got 3 PASS