function LibraryDiscoveryIntegrationTest::activateTheme

Activates a specified theme.

Installs the theme if not already installed and makes it the active theme.

Parameters

string $theme_name: The name of the theme to be activated.

File

core/tests/Drupal/KernelTests/Core/Asset/LibraryDiscoveryIntegrationTest.php, line 257

Class

LibraryDiscoveryIntegrationTest

Tests the library discovery and library discovery parser.

Namespace

Code

protected function activateTheme($theme_name) {
    $this->container
        ->get('theme_installer')
        ->install([
        $theme_name,
    ]);
    
    /** @var \Drupal\Core\Theme\ThemeInitializationInterface $theme_initializer */
    $theme_initializer = $this->container
        ->get('theme.initialization');
    
    /** @var \Drupal\Core\Theme\ThemeManagerInterface $theme_manager */
    $theme_manager = $this->container
        ->get('theme.manager');
    $theme_manager->setActiveTheme($theme_initializer->getActiveThemeByName($theme_name));
    $this->libraryDiscovery
        ->clearCachedDefinitions();
    $this->assertSame($theme_name, $theme_manager->getActiveTheme()
        ->getName());
}