GraphQL\Tests\Validator\FieldsOnCorrectTypeTest::testDefinedOnImplmentorsButNotOnInterface PHP Method

    public function testDefinedOnImplmentorsButNotOnInterface()
    {
        $this->expectFailsRule(new FieldsOnCorrectType(), '
      fragment definedOnImplementorsButNotInterface on Pet {
        nickname
      }', [$this->undefinedField('nickname', 'Pet', ['Cat', 'Dog'], 3, 9)]);
    }