class ConfigFactoryTest

class ConfigFactoryTest extends UnitTestCase {
    
    /**
     * Config factory under test.
     *
     * @var \Drupal\Core\Config\ConfigFactory
     */
    protected $configFactory;
    
    /**
     * Storage.
     *
     * @var \Drupal\Core\Config\StorageInterface|\PHPUnit\Framework\MockObject\MockObject
     */
    protected $storage;
    
    /**
     * Event Dispatcher.
     *
     * @var \Symfony\Contracts\EventDispatcher\EventDispatcherInterface|\PHPUnit\Framework\MockObject\MockObject
     */
    protected $eventDispatcher;
    
    /**
     * Typed Config.
     *
     * @var \Drupal\Core\Config\TypedConfigManagerInterface|\PHPUnit\Framework\MockObject\MockObject
     */
    protected $typedConfig;
    
    /**
     * The mocked cache tags invalidator.
     *
     * @var \Drupal\Core\Cache\CacheTagsInvalidatorInterface|\PHPUnit\Framework\MockObject\MockObject
     */
    protected $cacheTagsInvalidator;
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        $this->storage = $this->createMock('Drupal\\Core\\Config\\StorageInterface');
        $this->eventDispatcher = $this->createMock('Symfony\\Contracts\\EventDispatcher\\EventDispatcherInterface');
        $this->typedConfig = $this->createMock('\\Drupal\\Core\\Config\\TypedConfigManagerInterface');
        $this->configFactory = new ConfigFactory($this->storage, $this->eventDispatcher, $this->typedConfig);
        $this->cacheTagsInvalidator = $this->createMock('Drupal\\Core\\Cache\\CacheTagsInvalidatorInterface');
        $container = new ContainerBuilder();
        $container->set('cache_tags.invalidator', $this->cacheTagsInvalidator);
        \Drupal::setContainer($container);
    }
    
    /**
     * @covers ::rename
     */
    public function testRename() {
        $old = new Config($this->randomMachineName(), $this->storage, $this->eventDispatcher, $this->typedConfig);
        $new = new Config($this->randomMachineName(), $this->storage, $this->eventDispatcher, $this->typedConfig);
        $this->storage
            ->expects($this->exactly(2))
            ->method('readMultiple')
            ->willReturnMap([
            [
                [
                    $old->getName(),
                ],
                $old->getRawData(),
            ],
            [
                [
                    $new->getName(),
                ],
                $new->getRawData(),
            ],
        ]);
        $this->cacheTagsInvalidator
            ->expects($this->once())
            ->method('invalidateTags')
            ->with($old->getCacheTags());
        $this->storage
            ->expects($this->once())
            ->method('rename')
            ->with($old->getName(), $new->getName());
        $this->configFactory
            ->rename($old->getName(), $new->getName());
    }

}