GraphQL\Tests\Type\DefinitionTest::testAllowsThunkForUnionTypes PHP Метод

    public function testAllowsThunkForUnionTypes()
    {
        $union = new UnionType(['name' => 'ThunkUnion', 'types' => function () {
            return [$this->objectType];
        }]);
        $types = $union->getTypes();
        $this->assertEquals(1, count($types));
        $this->assertSame($this->objectType, $types[0]);
    }