class BlockSystemBrandingTest

class BlockSystemBrandingTest extends BlockTestBase {
    
    /**
     * Modules to install.
     *
     * @var array
     */
    protected static $modules = [
        'block',
        'system',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        parent::setUp();
        // Set a site slogan.
        $this->config('system.site')
            ->set('slogan', 'Community plumbing')
            ->save();
        // Add the system branding block to the page.
        $this->drupalPlaceBlock('system_branding_block', [
            'region' => 'header',
            'id' => 'site_branding',
        ]);
    }
    
    /**
     * Tests system branding block configuration.
     */
    public function testSystemBrandingSettings() : void {
        $site_logo_xpath = '//div[@id="block-site-branding"]/a/img';
        $site_name_xpath = '//div[@id="block-site-branding"]/a[text() = "Drupal"]';
        $site_slogan_xpath = '//div[@id="block-site-branding"]/descendant::text()[last()]';
        // Set default block settings.
        $this->drupalGet('');
        // Test that all branding elements are displayed.
        $this->assertSession()
            ->elementExists('xpath', $site_logo_xpath);
        $this->assertSession()
            ->elementExists('xpath', $site_name_xpath);
        $this->assertSession()
            ->elementExists('xpath', $site_slogan_xpath);
        $this->assertSession()
            ->elementTextContains('xpath', $site_slogan_xpath, 'Community plumbing');
        $this->assertSession()
            ->responseHeaderContains('X-Drupal-Cache-Tags', 'config:system.site');
        // Just this once, assert that the img src of the logo is as expected.
        $theme_path = \Drupal::service('extension.list.theme')->getPath($this->defaultTheme);
        $this->assertSession()
            ->elementAttributeContains('xpath', $site_logo_xpath, 'src', $theme_path . '/logo.svg');
        // Be sure the slogan is XSS-filtered.
        $this->config('system.site')
            ->set('slogan', '<script>alert("Community carpentry");</script>')
            ->save();
        $this->drupalGet('');
        $this->assertSession()
            ->elementTextEquals('xpath', $site_slogan_xpath, 'alert("Community carpentry");');
        $this->assertSession()
            ->responseNotContains('<script>alert("Community carpentry");</script>');
        // Turn just the logo off.
        $this->config('block.block.site_branding')
            ->set('settings.use_site_logo', 0)
            ->save();
        $this->drupalGet('');
        // Re-test all branding elements.
        $this->assertSession()
            ->elementNotExists('xpath', $site_logo_xpath);
        $this->assertSession()
            ->elementExists('xpath', $site_name_xpath);
        $this->assertSession()
            ->elementTextContains('xpath', $site_slogan_xpath, 'alert("Community carpentry");');
        $this->assertSession()
            ->responseNotContains('<script>alert("Community carpentry");</script>');
        $this->assertSession()
            ->responseHeaderContains('X-Drupal-Cache-Tags', 'config:system.site');
        // Turn just the site name off.
        $this->config('block.block.site_branding')
            ->set('settings.use_site_logo', 1)
            ->set('settings.use_site_name', 0)
            ->save();
        $this->drupalGet('');
        // Re-test all branding elements.
        $this->assertSession()
            ->elementExists('xpath', $site_logo_xpath);
        $this->assertSession()
            ->elementNotExists('xpath', $site_name_xpath);
        $this->assertSession()
            ->elementTextContains('xpath', $site_slogan_xpath, 'alert("Community carpentry");');
        $this->assertSession()
            ->responseNotContains('<script>alert("Community carpentry");</script>');
        $this->assertSession()
            ->responseHeaderContains('X-Drupal-Cache-Tags', 'config:system.site');
        // Turn just the site slogan off.
        $this->config('block.block.site_branding')
            ->set('settings.use_site_name', 1)
            ->set('settings.use_site_slogan', 0)
            ->save();
        $this->drupalGet('');
        // Re-test all branding elements.
        $this->assertSession()
            ->elementExists('xpath', $site_logo_xpath);
        $this->assertSession()
            ->elementExists('xpath', $site_name_xpath);
        $this->assertSession()
            ->elementTextNotContains('xpath', $site_slogan_xpath, 'Community carpentry');
        $this->assertSession()
            ->responseHeaderContains('X-Drupal-Cache-Tags', 'config:system.site');
        // Turn the site name and the site slogan off.
        $this->config('block.block.site_branding')
            ->set('settings.use_site_name', 0)
            ->set('settings.use_site_slogan', 0)
            ->save();
        $this->drupalGet('');
        // Re-test all branding elements.
        $this->assertSession()
            ->elementExists('xpath', $site_logo_xpath);
        $this->assertSession()
            ->elementNotExists('xpath', $site_name_xpath);
        $this->assertSession()
            ->elementTextNotContains('xpath', $site_slogan_xpath, 'Community carpentry');
        $this->assertSession()
            ->responseHeaderContains('X-Drupal-Cache-Tags', 'config:system.site');
    }

}