public function testIsDefinedMethodAcceptsInstanceOfEnumeration()
{
$instance = TestEnum::TestMember();
$this->assertSame(true, TestEnum::isDefined($instance));
// This should not pass because we are asking if an enum of one type is defined in another
// enum
$instance = AnotherEnum::DifferentMember();
$this->assertSame(false, TestEnum::isDefined($instance));
}