class ExtensionSerializationTest

class ExtensionSerializationTest extends UnitTestCase {
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() {
        parent::setUp();
        vfsStream::setup('dummy_app_root');
        vfsStream::create([
            'core' => [
                'modules' => [
                    'system' => [
                        'system.info.yml' => file_get_contents($this->root . '/core/modules/system/system.info.yml'),
                    ],
                ],
            ],
        ]);
    }
    
    /**
     * Tests that the Extension class unserialize method uses the preferred root.
     *
     * When the Extension unserialize method is called on serialized Extension
     * object data, test that the Extension object's root property is set to the
     * container's app.root and not the DRUPAL_ROOT constant if the service
     * container app.root is available.
     *
     * @covers ::__sleep
     * @covers ::__wakeup
     */
    public function testServiceAppRouteUsage() {
        // The assumption of our test is that DRUPAL_ROOT is not defined.
        $this->assertFalse(defined('DRUPAL_ROOT'), 'Constant DRUPAL_ROOT is defined.');
        $container = new ContainerBuilder();
        // Set a dummy container app.root to test against.
        $container->set('app.root', 'vfs://dummy_app_root');
        \Drupal::setContainer($container);
        // Instantiate an Extension object for testing unserialization.
        $extension = new Extension($container->get('app.root'), 'module', 'core/modules/system/system.info.yml', 'system.module');
        $extension = unserialize(serialize($extension));
        $this->assertEquals('vfs://dummy_app_root', $this->readAttribute($extension, 'root'));
    }
    
    /**
     * Tests dynamically assigned public properties kept when serialized.
     *
     * @covers ::__sleep
     * @covers ::__wakeup
     */
    public function testPublicProperties() {
        $container = new ContainerBuilder();
        // Set a dummy container app.root to test against.
        $container->set('app.root', 'vfs://dummy_app_root');
        \Drupal::setContainer($container);
        $extension = new Extension($container->get('app.root'), 'module', 'core/modules/system/system.info.yml', 'system.module');
        // Assign a public property dynamically.
        $extension->test = 'foo';
        $extension = unserialize(serialize($extension));
        $this->assertSame('foo', $extension->test);
    }

}