class CsrfAccessCheckTest

class CsrfAccessCheckTest extends UnitTestCase {
    
    /**
     * The mock CSRF token generator.
     *
     * @var \Drupal\Core\Access\CsrfTokenGenerator|\PHPUnit\Framework\MockObject\MockObject
     */
    protected $csrfToken;
    
    /**
     * The access checker.
     *
     * @var \Drupal\Core\Access\CsrfAccessCheck
     */
    protected $accessCheck;
    
    /**
     * The mock route match.
     *
     * @var \Drupal\Core\Routing\RouteMatchInterface|\PHPUnit\Framework\MockObject\MockObject
     */
    protected $routeMatch;
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        parent::setUp();
        $this->csrfToken = $this->getMockBuilder('Drupal\\Core\\Access\\CsrfTokenGenerator')
            ->disableOriginalConstructor()
            ->getMock();
        $this->routeMatch = $this->createMock('Drupal\\Core\\Routing\\RouteMatchInterface');
        $this->accessCheck = new CsrfAccessCheck($this->csrfToken);
    }
    
    /**
     * Tests the access() method with a valid token.
     */
    public function testAccessTokenPass() : void {
        $this->csrfToken
            ->expects($this->once())
            ->method('validate')
            ->with('test_query', 'test-path/42')
            ->willReturn(TRUE);
        $this->routeMatch
            ->expects($this->once())
            ->method('getRawParameters')
            ->willReturn([
            'node' => 42,
        ]);
        $route = new Route('/test-path/{node}', [], [
            '_csrf_token' => 'TRUE',
        ]);
        $request = Request::create('/test-path/42?token=test_query');
        $this->assertEquals(AccessResult::allowed()->setCacheMaxAge(0), $this->accessCheck
            ->access($route, $request, $this->routeMatch));
    }
    
    /**
     * @covers ::access
     */
    public function testCsrfTokenInvalid() : void {
        $this->csrfToken
            ->expects($this->once())
            ->method('validate')
            ->with('test_query', 'test-path')
            ->willReturn(FALSE);
        $this->routeMatch
            ->expects($this->once())
            ->method('getRawParameters')
            ->willReturn([]);
        $route = new Route('/test-path', [], [
            '_csrf_token' => 'TRUE',
        ]);
        $request = Request::create('/test-path?token=test_query');
        $this->assertEquals(AccessResult::forbidden("'csrf_token' URL query argument is invalid.")->setCacheMaxAge(0), $this->accessCheck
            ->access($route, $request, $this->routeMatch));
    }
    
    /**
     * @covers ::access
     */
    public function testCsrfTokenMissing() : void {
        $this->csrfToken
            ->expects($this->once())
            ->method('validate')
            ->with('', 'test-path')
            ->willReturn(FALSE);
        $this->routeMatch
            ->expects($this->once())
            ->method('getRawParameters')
            ->willReturn([]);
        $route = new Route('/test-path', [], [
            '_csrf_token' => 'TRUE',
        ]);
        $request = Request::create('/test-path');
        $this->assertEquals(AccessResult::forbidden("'csrf_token' URL query argument is missing.")->setCacheMaxAge(0), $this->accessCheck
            ->access($route, $request, $this->routeMatch));
    }

}