public function testOneToOneAssociationWorks()
 {
     $testCase = new TestsCases\BaseTestCase();
     $associatedTestCase = new TestsCases\AssociationTestCase();
     $testCase->setInvertedOneToOneProperty($associatedTestCase);
     $this->assertEquals($testCase, $associatedTestCase->getInvertedOneToOneProperty());
     $testCase->setInvertedOneToOneProperty(new TestsCases\AssociationTestCase());
     $this->assertEquals(null, $associatedTestCase->getInvertedOneToOneProperty());
 }