UserBlocksTest.php

<?php

namespace Drupal\Tests\user\Functional;

use Drupal\Core\Url;
use Drupal\dynamic_page_cache\EventSubscriber\DynamicPageCacheSubscriber;
use Drupal\Tests\BrowserTestBase;

/**
 * Tests user blocks.
 *
 * @group user
 */
class UserBlocksTest extends BrowserTestBase {
    
    /**
     * Modules to enable.
     *
     * @var array
     */
    public static $modules = [
        'block',
        'views',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'classy';
    
    /**
     * A user with the 'administer blocks' permission.
     *
     * @var \Drupal\user\UserInterface
     */
    protected $adminUser;
    protected function setUp() {
        parent::setUp();
        $this->adminUser = $this->drupalCreateUser([
            'administer blocks',
        ]);
        $this->drupalLogin($this->adminUser);
        $this->drupalPlaceBlock('user_login_block');
        $this->drupalLogout($this->adminUser);
    }
    
    /**
     * Tests that user login block is hidden from user/login.
     */
    public function testUserLoginBlockVisibility() {
        // Array keyed list where key being the URL address and value being expected
        // visibility as boolean type.
        $paths = [
            'node' => TRUE,
            'user/login' => FALSE,
            'user/register' => TRUE,
            'user/password' => TRUE,
        ];
        foreach ($paths as $path => $expected_visibility) {
            $this->drupalGet($path);
            $elements = $this->xpath('//div[contains(@class,"block-user-login-block") and @role="form"]');
            if ($expected_visibility) {
                $this->assertTrue(!empty($elements), 'User login block in path "' . $path . '" should be visible');
            }
            else {
                $this->assertTrue(empty($elements), 'User login block in path "' . $path . '" should not be visible');
            }
        }
    }
    
    /**
     * Test the user login block.
     */
    public function testUserLoginBlock() {
        // Create a user with some permission that anonymous users lack.
        $user = $this->drupalCreateUser([
            'administer permissions',
        ]);
        // Log in using the block.
        $edit = [];
        $edit['name'] = $user->getAccountName();
        $edit['pass'] = $user->passRaw;
        $this->drupalPostForm('admin/people/permissions', $edit, t('Log in'));
        $this->assertNoText(t('User login'), 'Logged in.');
        // Check that we are still on the same page.
        $this->assertUrl(Url::fromRoute('user.admin_permissions', [], [
            'absolute' => TRUE,
        ])->toString(), [], 'Still on the same page after login for access denied page');
        // Now, log out and repeat with a non-403 page.
        $this->drupalLogout();
        $this->drupalGet('filter/tips');
        $this->assertEqual('MISS', $this->drupalGetHeader(DynamicPageCacheSubscriber::HEADER));
        $this->drupalPostForm(NULL, $edit, t('Log in'));
        $this->assertNoText(t('User login'), 'Logged in.');
        // Verify that we are still on the same page after login for allowed page.
        $this->assertPattern('!<title.*?Compose tips.*?</title>!');
        // Log out again and repeat with a non-403 page including query arguments.
        $this->drupalLogout();
        $this->drupalGet('filter/tips', [
            'query' => [
                'foo' => 'bar',
            ],
        ]);
        $this->assertEqual('HIT', $this->drupalGetHeader(DynamicPageCacheSubscriber::HEADER));
        $this->drupalPostForm(NULL, $edit, t('Log in'));
        $this->assertNoText(t('User login'), 'Logged in.');
        // Verify that we are still on the same page after login for allowed page.
        $this->assertPattern('!<title.*?Compose tips.*?</title>!');
        $this->assertStringContainsString('/filter/tips?foo=bar', $this->getUrl(), 'Correct query arguments are displayed after login');
        // Repeat with different query arguments.
        $this->drupalLogout();
        $this->drupalGet('filter/tips', [
            'query' => [
                'foo' => 'baz',
            ],
        ]);
        $this->assertEqual('HIT', $this->drupalGetHeader(DynamicPageCacheSubscriber::HEADER));
        $this->drupalPostForm(NULL, $edit, t('Log in'));
        $this->assertNoText(t('User login'), 'Logged in.');
        // Verify that we are still on the same page after login for allowed page.
        $this->assertPattern('!<title.*?Compose tips.*?</title>!');
        $this->assertStringContainsString('/filter/tips?foo=baz', $this->getUrl(), 'Correct query arguments are displayed after login');
        // Check that the user login block is not vulnerable to information
        // disclosure to third party sites.
        $this->drupalLogout();
        $this->drupalPostForm('http://example.com/', $edit, t('Log in'), [
            'external' => FALSE,
        ]);
        // Check that we remain on the site after login.
        $this->assertUrl($user->toUrl('canonical', [
            'absolute' => TRUE,
        ])
            ->toString(), [], 'Redirected to user profile page after login from the frontpage');
        // Verify that form validation errors are displayed immediately for forms
        // in blocks and not on subsequent page requests.
        $this->drupalLogout();
        $edit = [];
        $edit['name'] = 'foo';
        $edit['pass'] = 'invalid password';
        $this->drupalPostForm('filter/tips', $edit, t('Log in'));
        $this->assertText(t('Unrecognized username or password. Forgot your password?'));
        $this->drupalGet('filter/tips');
        $this->assertNoText(t('Unrecognized username or password. Forgot your password?'));
    }

}