GraphQL\Tests\Validator\PossibleFragmentSpreadsTest::testUnionIntoNonOverlappingUnion PHP Method

    public function testUnionIntoNonOverlappingUnion()
    {
        $this->expectFailsRule(new PossibleFragmentSpreads(), '
      fragment invalidUnionWithinUnion on CatOrDog { ...humanOrAlienFragment }
      fragment humanOrAlienFragment on HumanOrAlien { __typename }
        ', [$this->error('humanOrAlienFragment', 'CatOrDog', 'HumanOrAlien', 2, 54)]);
    }