Proyectos de Subversion Moodle

<?php

// This file is part of Moodle - http://moodle.org/

//

// Moodle is free software: you can redistribute it and/or modify

// it under the terms of the GNU General Public License as published by

// the Free Software Foundation, either version 3 of the License, or

// (at your option) any later version.

//

// Moodle is distributed in the hope that it will be useful,

// but WITHOUT ANY WARRANTY; without even the implied warranty of

// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

// GNU General Public License for more details.

//

// You should have received a copy of the GNU General Public License

// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.

namespace core\router\middleware;

use core\di;

use core\router\request_validator;

use core\router\response_validator;

use GuzzleHttp\Psr7\Response;

use GuzzleHttp\Psr7\ServerRequest;

use Psr\Http\Message\ResponseInterface;

use Psr\Http\Server\RequestHandlerInterface;

/**

 * Tests for the validation middleware.

 *

 * @package    core

 * @category   test

 * @copyright  2024 Andrew Lyons <andrew@nicols.co.uk>

 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later

 * @covers \core\router\middleware\validation_middleware

 */

final class validation_middleware_test extends \advanced_testcase {

    /**

     * If a request fails request validation, the next middleware will not be called.

     */

    public function test_process_fails_request_validation(): void {

        $request = new ServerRequest('GET', '/test');

        // Mock the request validator to throw an exception.

        $requestvalidator = $this->getMockBuilder(request_validator::class)->getMock();

        $requestvalidator->expects($this->once())

            ->method('validate_request')

            ->with($request)

            ->willThrowException(new \Exception('Invalid request'));

        // If the request fails validation, it will not be passed to next Middleware.

        $handler = $this->getMockBuilder(RequestHandlerInterface::class)->getMock();

        $handler->expects($this->never())->method('handle');

        // It will never get a response.

        $responsevalidator = $this->getMockBuilder(response_validator::class)->getMock();

        $responsevalidator->expects($this->never())->method('validate_response');

        di::set('core\router\request_validator', $requestvalidator);

        di::set('core\router\response_validator', $responsevalidator);

        // Execute the middleware.

        $middleware = di::get(validation_middleware::class);

        $returns = $middleware->process($request, $handler);

        $this->assertInstanceOf(ResponseInterface::class, $returns);

    }

    /**

     * If a request passes request validation, but fails response validation.

     */

    public function test_process_passes_request_validation_fails_response_validation(): void {

        $request = new ServerRequest('GET', '/test');

        $response = new Response();

        // Mock the request validator to throw an exception.

        $requestvalidator = $this->getMockBuilder(request_validator::class)->getMock();

        $requestvalidator->expects($this->once())

            ->method('validate_request')

            ->with($request)

            ->willReturnArgument(0);

        // If the request fails validation, it will not be passed to next Middleware.

        $handler = $this->getMockBuilder(RequestHandlerInterface::class)->getMock();

        $handler

            ->method('handle')

            ->willReturn($response);

        // It will never get a response.

        $responsevalidator = $this->getMockBuilder(response_validator::class)->getMock();

        $responsevalidator

            ->expects($this->once())

            ->method('validate_response')

            ->with($request, $response)

            ->willThrowException(new \Exception('Invalid response'));

        di::set('core\router\request_validator', $requestvalidator);

        di::set('core\router\response_validator', $responsevalidator);

        // Execute the middleware.

        $middleware = di::get(validation_middleware::class);

        $returns = $middleware->process($request, $handler);

        $this->assertInstanceOf(ResponseInterface::class, $returns);

        $this->assertNotEquals($response, $returns);

    }

    /**

     * If a request passes request validation, the response middleware will be called.

     */

    public function test_process_passes_request_validation(): void {

        $request = new ServerRequest('GET', '/test');

        $response = new Response();

        // Mock the request validator to throw an exception.

        $requestvalidator = $this->getMockBuilder(request_validator::class)->getMock();

        $requestvalidator->expects($this->once())

            ->method('validate_request')

            ->with($request)

            ->willReturnArgument(0);

        // If the request fails validation, it will not be passed to next Middleware.

        $handler = $this->getMockBuilder(RequestHandlerInterface::class)->getMock();

        $handler->expects($this->once())

            ->method('handle')

            ->with($request)

            ->willReturn($response);

        // It will never get a response.

        $responsevalidator = $this->getMockBuilder(response_validator::class)->getMock();

        $responsevalidator

            ->expects($this->once())

            ->method('validate_response')

            ->with($request, $response);

        di::set('core\router\request_validator', $requestvalidator);

        di::set('core\router\response_validator', $responsevalidator);

        // Execute the middleware.

        $middleware = di::get(validation_middleware::class);

        $this->assertEquals($response, $middleware->process($request, $handler));

    }

}