class RouteProcessorManagerTest

class RouteProcessorManagerTest extends UnitTestCase {
    
    /**
     * The route processor manager.
     *
     * @var \Drupal\Core\RouteProcessor\RouteProcessorManager
     */
    protected $processorManager;
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        $this->processorManager = new RouteProcessorManager();
    }
    
    /**
     * Tests the Route process manager functionality.
     */
    public function testRouteProcessorManager() {
        $route = new Route('');
        $parameters = [
            'test' => 'test',
        ];
        $route_name = 'test_name';
        $processors = [
            10 => $this->getMockProcessor($route_name, $route, $parameters),
            5 => $this->getMockProcessor($route_name, $route, $parameters),
            0 => $this->getMockProcessor($route_name, $route, $parameters),
        ];
        // Add the processors in reverse order.
        foreach ($processors as $priority => $processor) {
            $this->processorManager
                ->addOutbound($processor, $priority);
        }
        $bubbleable_metadata = new BubbleableMetadata();
        $this->processorManager
            ->processOutbound($route_name, $route, $parameters, $bubbleable_metadata);
        // Default cacheability is: permanently cacheable, no cache tags/contexts.
        $this->assertEquals((new BubbleableMetadata())->setCacheMaxAge(Cache::PERMANENT), $bubbleable_metadata);
    }
    
    /**
     * Returns a mock Route processor object.
     *
     * @param string $route_name
     *   The route name.
     * @param \Symfony\Component\Routing\Route $route
     *   The Route to use in mock with() expectation.
     * @param array $parameters
     *   The parameters to use in mock with() expectation.
     *
     * @return \Drupal\Core\RouteProcessor\OutboundRouteProcessorInterface|\PHPUnit\Framework\MockObject\MockObject
     */
    protected function getMockProcessor($route_name, $route, $parameters) {
        $processor = $this->createMock('Drupal\\Core\\RouteProcessor\\OutboundRouteProcessorInterface');
        $processor->expects($this->once())
            ->method('processOutbound')
            ->with($route_name, $route, $parameters);
        return $processor;
    }

}