class FrontPageTest

class FrontPageTest extends BrowserTestBase {
    
    /**
     * {@inheritdoc}
     */
    protected static $modules = [
        'node',
        'system_test',
        'views',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * The path to a node that is created for testing.
     *
     * @var string
     */
    protected $nodePath;
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        parent::setUp();
        // Create admin user, log in admin user, and create one node.
        $this->drupalLogin($this->drupalCreateUser([
            'access content',
            'administer site configuration',
        ]));
        $this->drupalCreateContentType([
            'type' => 'page',
        ]);
        $this->nodePath = "node/" . $this->drupalCreateNode([
            'promote' => 1,
        ])
            ->id();
        // Configure 'node' as front page.
        $this->config('system.site')
            ->set('page.front', '/node')
            ->save();
        // Enable front page logging in system_test.module.
        \Drupal::state()->set('system_test.front_page_output', 1);
    }
    
    /**
     * Tests front page functionality.
     */
    public function testDrupalFrontPage() : void {
        // Create a promoted node to test the <title> tag on the front page view.
        $settings = [
            'title' => $this->randomMachineName(8),
            'promote' => 1,
        ];
        $this->drupalCreateNode($settings);
        $this->drupalGet('');
        $this->assertSession()
            ->titleEquals('Home | Drupal');
        // Check that path is the front page.
        $this->assertSession()
            ->pageTextContains('On front page.');
        $this->drupalGet('node');
        $this->assertSession()
            ->pageTextContains('On front page.');
        $this->drupalGet($this->nodePath);
        $this->assertSession()
            ->pageTextNotContains('On front page.');
        // Change the front page to an invalid path.
        $edit = [
            'site_frontpage' => '/kittens',
        ];
        $this->drupalGet('admin/config/system/site-information');
        $this->submitForm($edit, 'Save configuration');
        $this->assertSession()
            ->pageTextContains("Either the path '" . $edit['site_frontpage'] . "' is invalid or you do not have access to it.");
        // Change the front page to a path without a starting slash.
        $edit = [
            'site_frontpage' => $this->nodePath,
        ];
        $this->drupalGet('admin/config/system/site-information');
        $this->submitForm($edit, 'Save configuration');
        $this->assertSession()
            ->pageTextContains("The path '{$edit['site_frontpage']}' has to start with a slash.");
        // Change the front page to a valid path.
        $edit['site_frontpage'] = '/' . $this->nodePath;
        $this->drupalGet('admin/config/system/site-information');
        $this->submitForm($edit, 'Save configuration');
        // Check that the front page path has been saved.
        $this->assertSession()
            ->pageTextContains('The configuration options have been saved.');
        // Check that path is the front page.
        $this->drupalGet('');
        $this->assertSession()
            ->pageTextContains('On front page.');
        $this->drupalGet('node');
        $this->assertSession()
            ->pageTextNotContains('On front page.');
        $this->drupalGet($this->nodePath);
        $this->assertSession()
            ->pageTextContains('On front page.');
    }

}