public function testVirtualPageFindsCorrectCasting()
 {
     $page = new VirtualPageTest_ClassA();
     $page->CastingTest = "Some content";
     $page->write();
     $virtual = new VirtualPage();
     $virtual->CopyContentFromID = $page->ID;
     $virtual->write();
     $this->assertEquals('VirtualPageTest_TestDBField', $virtual->castingHelper('CastingTest'));
     $this->assertEquals('SOME CONTENT', $virtual->obj('CastingTest')->forTemplate());
 }