UserHelpersTest.php

<?php

namespace Drupal\FunctionalTests;

use Drupal\Tests\BrowserTestBase;

/**
 * Tests User related helper methods of BrowserTestBase.
 *
 * @group browsertestbase
 */
class UserHelpersTest extends BrowserTestBase {
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * Tests BrowserTestBase::drupalUserIsLoggedIn().
     */
    public function testDrupalUserIsLoggedIn() {
        $first_user = $this->drupalCreateUser();
        $second_user = $this->drupalCreateUser();
        // After logging in, the first user should be logged in, the second not.
        $this->drupalLogin($first_user);
        $this->assertTrue($this->drupalUserIsLoggedIn($first_user));
        $this->assertFalse($this->drupalUserIsLoggedIn($second_user));
        // Verify that logged in state is retained across pages.
        $this->drupalGet('');
        $this->assertTrue($this->drupalUserIsLoggedIn($first_user));
        $this->assertFalse($this->drupalUserIsLoggedIn($second_user));
        // After logging out, both users should be logged out.
        $this->drupalLogout();
        $this->assertFalse($this->drupalUserIsLoggedIn($first_user));
        $this->assertFalse($this->drupalUserIsLoggedIn($second_user));
        // After logging back in, the second user should still be logged out.
        $this->drupalLogin($first_user);
        $this->assertTrue($this->drupalUserIsLoggedIn($first_user));
        $this->assertFalse($this->drupalUserIsLoggedIn($second_user));
        // After logging in the second user, the first one should be logged out.
        $this->drupalLogin($second_user);
        $this->assertTrue($this->drupalUserIsLoggedIn($second_user));
        $this->assertFalse($this->drupalUserIsLoggedIn($first_user));
        // After logging out, both should be logged out.
        $this->drupalLogout();
        $this->assertFalse($this->drupalUserIsLoggedIn($first_user));
        $this->assertFalse($this->drupalUserIsLoggedIn($second_user));
    }

}