BrowserTestBaseTest.php

<?php

declare (strict_types=1);
namespace Drupal\Tests\Core\Test;

use Drupal\Tests\DrupalTestBrowser;
use Drupal\Tests\UnitTestCase;
use Drupal\Tests\BrowserTestBase;
use Behat\Mink\Driver\BrowserKitDriver;
use Behat\Mink\Session;

/**
 * @coversDefaultClass \Drupal\Tests\BrowserTestBase
 * @group Test
 */
class BrowserTestBaseTest extends UnitTestCase {
    protected function mockBrowserTestBaseWithDriver($driver) {
        $session = $this->getMockBuilder(Session::class)
            ->disableOriginalConstructor()
            ->onlyMethods([
            'getDriver',
        ])
            ->getMock();
        $session->expects($this->any())
            ->method('getDriver')
            ->willReturn($driver);
        $btb = $this->getMockBuilder(BrowserTestBaseMockableClass::class)
            ->disableOriginalConstructor()
            ->onlyMethods([
            'getSession',
        ])
            ->getMock();
        $btb->expects($this->any())
            ->method('getSession')
            ->willReturn($session);
        return $btb;
    }
    
    /**
     * @covers ::getHttpClient
     */
    public function testGetHttpClient() : void {
        // Our stand-in for the Guzzle client object.
        $expected = new \stdClass();
        $browserkit_client = $this->getMockBuilder(DrupalTestBrowser::class)
            ->onlyMethods([
            'getClient',
        ])
            ->getMock();
        $browserkit_client->expects($this->once())
            ->method('getClient')
            ->willReturn($expected);
        // Because the driver is a BrowserKitDriver, we'll get back a client.
        $driver = new BrowserKitDriver($browserkit_client);
        $btb = $this->mockBrowserTestBaseWithDriver($driver);
        $reflected_get_http_client = new \ReflectionMethod($btb, 'getHttpClient');
        $this->assertSame(get_class($expected), get_class($reflected_get_http_client->invoke($btb)));
    }
    
    /**
     * @covers ::getHttpClient
     */
    public function testGetHttpClientException() : void {
        // A driver type that isn't BrowserKitDriver. This should cause a
        // RuntimeException.
        $btb = $this->mockBrowserTestBaseWithDriver(new \stdClass());
        $reflected_get_http_client = new \ReflectionMethod($btb, 'getHttpClient');
        $this->expectException(\RuntimeException::class);
        $this->expectExceptionMessage('The Mink client type stdClass does not support getHttpClient().');
        $reflected_get_http_client->invoke($btb);
    }
    
    /**
     * Tests that tearDown doesn't call cleanupEnvironment if setUp is not called.
     *
     * @covers ::tearDown
     */
    public function testTearDownWithoutSetUp() : void {
        $method = 'cleanupEnvironment';
        $this->assertTrue(method_exists(BrowserTestBase::class, $method));
        $btb = $this->getMockBuilder(BrowserTestBaseMockableClass::class)
            ->disableOriginalConstructor()
            ->onlyMethods([
            $method,
        ])
            ->getMock();
        $btb->expects($this->never())
            ->method($method);
        $ref_tearDown = new \ReflectionMethod($btb, 'tearDown');
        $ref_tearDown->invoke($btb);
    }

}

/**
 * A class extending BrowserTestBase for testing purposes.
 */
class BrowserTestBaseMockableClass extends BrowserTestBase {

}