public function testUnionIntoNotContainedObject()
{
$this->expectFailsRule(new PossibleFragmentSpreads(), '
fragment invalidUnionWithinObject on Human { ...catOrDogFragment }
fragment catOrDogFragment on CatOrDog { __typename }
', [$this->error('catOrDogFragment', 'Human', 'CatOrDog', 2, 52)]);
}