ClassyUninstallUpdateTest.php

<?php

namespace Drupal\Tests\system\Functional\Update;

use Drupal\FunctionalTests\Update\UpdatePathTestBase;

/**
 * Ensures that update hook uninstalls Classy when it's no longer needed.
 *
 * @group Update
 * @group legacy
 * @see system_post_update_uninstall_classy()
 */
class ClassyUninstallUpdateTest extends UpdatePathTestBase {
    
    /**
     * {@inheritdoc}
     */
    protected function setDatabaseDumpFiles() {
        $this->databaseDumpFiles = [
            __DIR__ . '/../../../fixtures/update/drupal-8.8.0.bare.standard.php.gz',
        ];
    }
    
    /**
     * Ensures that Classy is disabled if it's no longer needed.
     */
    public function testUpdate() {
        
        /** @var \Drupal\Core\Extension\ThemeHandlerInterface $theme_handler */
        $theme_handler = $this->container
            ->get('theme_handler');
        $this->assertTrue($theme_handler->themeExists('classy'));
        $this->assertTrue($theme_handler->themeExists('seven'));
        $this->runUpdates();
        // Ensure that Classy is not installed after running updates.
        $theme_handler->refreshInfo();
        $this->assertFalse($theme_handler->themeExists('classy'));
        $this->assertTrue($theme_handler->themeExists('seven'));
    }
    
    /**
     * Ensures that updates run without errors when Classy is not installed.
     */
    public function testUpdateClassyNotInstalled() {
        
        /** @var \Drupal\Core\Extension\ThemeHandlerInterface $theme_handler */
        $theme_handler = $this->container
            ->get('theme_handler');
        $theme_list = array_keys($theme_handler->listInfo());
        
        /** @var \Drupal\Core\Extension\ThemeInstallerInterface $theme_installer */
        $theme_installer = $this->container
            ->get('theme_installer');
        $theme_installer->install([
            'stark',
        ]);
        $this->container
            ->get('config.factory')
            ->getEditable('system.theme')
            ->set('default', 'stark')
            ->set('admin', '')
            ->save();
        $theme_handler->refreshInfo();
        // Uninstall all themes that were installed prior to enabling Stark.
        $theme_installer->uninstall($theme_list);
        // Ensure that Classy is not installed anymore.
        $theme_handler->refreshInfo();
        $this->assertFalse($theme_handler->themeExists('classy'));
        $this->runUpdates();
        $theme_handler->refreshInfo();
        $this->assertFalse($theme_handler->themeExists('classy'));
    }
    
    /**
     * Ensures that updates run without errors when Classy is still needed.
     */
    public function testUpdateClassyNeeded() {
        
        /** @var \Drupal\Core\Extension\ThemeHandlerInterface $theme_handler */
        $theme_handler = $this->container
            ->get('theme_handler');
        
        /** @var \Drupal\Core\Extension\ThemeInstallerInterface $theme_installer */
        $theme_installer = $this->container
            ->get('theme_installer');
        $theme_installer->install([
            'test_legacy_stylesheets_remove',
        ]);
        $this->assertTrue($theme_handler->themeExists('classy'));
        $this->runUpdates();
        // Ensure that Classy is still installed after running tests.
        $theme_handler->refreshInfo();
        $this->assertTrue($theme_handler->themeExists('classy'));
    }

}