class InstallerTest

class InstallerTest extends InstallerTestBase {
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * Ensures that the user page is available after installation.
     */
    public function testInstaller() {
        $this->assertNotNull(\Drupal::state()->get('system.css_js_query_string'), 'The dummy query string should be set during install');
        $this->assertSession()
            ->addressEquals('user/1');
        $this->assertSession()
            ->statusCodeEquals(200);
        // Confirm that we are logged-in after installation.
        $this->assertSession()
            ->pageTextContains($this->rootUser
            ->getAccountName());
        // Verify that the confirmation message appears.
        require_once $this->root . '/core/includes/install.inc';
        $this->assertSession()
            ->pageTextContains('Congratulations, you installed Drupal!');
        // Ensure that the timezone is correct for sites under test after installing
        // interactively.
        $this->assertEquals('Australia/Sydney', $this->config('system.date')
            ->get('timezone.default'));
        // Ensure the profile has a weight of 1000.
        $module_extension_list = \Drupal::service('extension.list.module');
        $extensions = $module_extension_list->getList();
        $this->assertArrayHasKey('testing', $extensions);
        $this->assertEquals(1000, $extensions['testing']->weight);
        // Ensures that router is not rebuilt unnecessarily during the install.
        $this->assertSame(1, \Drupal::service('core.performance.test.recorder')->getCount('event', RoutingEvents::FINISHED));
    }
    
    /**
     * Installer step: Select language.
     */
    protected function setUpLanguage() {
        // Test that \Drupal\Core\Render\BareHtmlPageRenderer adds assets and
        // metatags as expected to the first page of the installer.
        $this->assertSession()
            ->responseContains("css/components/button.css");
        $this->assertSession()
            ->responseContains('<meta charset="utf-8" />');
        // Assert that the expected title is present.
        $this->assertEquals('Choose language', $this->cssSelect('main h2')[0]
            ->getText());
        parent::setUpLanguage();
    }
    
    /**
     * {@inheritdoc}
     */
    protected function setUpProfile() {
        $settings_services_file = DRUPAL_ROOT . '/sites/default/default.services.yml';
        // Copy the testing-specific service overrides in place.
        copy($settings_services_file, $this->siteDirectory . '/services.yml');
        PerformanceTestRecorder::registerService($this->siteDirectory . '/services.yml', TRUE);
        // Assert that the expected title is present.
        $this->assertEquals('Select an installation profile', $this->cssSelect('main h2')[0]
            ->getText());
        // Verify that Title/Label are not displayed when '#title_display' =>
        // 'invisible' attribute is set.
        $this->assertSession()
            ->elementsCount('xpath', "//span[contains(@class, 'visually-hidden') and contains(text(), 'Select an installation profile')]", 1);
        parent::setUpProfile();
    }
    
    /**
     * {@inheritdoc}
     */
    protected function setUpSettings() {
        // Assert that the expected title is present.
        $this->assertEquals('Database configuration', $this->cssSelect('main h2')[0]
            ->getText());
        // Assert that we use the by core supported database drivers by default and
        // not the ones from the driver_test module.
        $this->assertSession()
            ->elementTextEquals('xpath', '//label[@for="edit-driver-mysql"]', 'MySQL, MariaDB, Percona Server, or equivalent');
        $this->assertSession()
            ->elementTextEquals('xpath', '//label[@for="edit-driver-pgsql"]', 'PostgreSQL');
        parent::setUpSettings();
    }
    
    /**
     * {@inheritdoc}
     */
    protected function setUpSite() {
        // Assert that the expected title is present.
        $this->assertEquals('Configure site', $this->cssSelect('main h2')[0]
            ->getText());
        // Test that SiteConfigureForm::buildForm() has made the site directory and
        // the settings file non-writable.
        $site_directory = $this->container
            ->getParameter('app.root') . '/' . $this->siteDirectory;
        $this->assertDirectoryIsNotWritable($site_directory);
        $this->assertFileIsNotWritable($site_directory . '/settings.php');
        parent::setUpSite();
    }
    
    /**
     * {@inheritdoc}
     */
    protected function visitInstaller() {
        parent::visitInstaller();
        // Assert the title is correct and has the title suffix.
        $this->assertSession()
            ->titleEquals('Choose language | Drupal');
    }
    
    /**
     * Confirms that the installation succeeded.
     */
    public function testInstalled() {
        $this->assertSession()
            ->addressEquals('user/1');
        $this->assertSession()
            ->statusCodeEquals(200);
        $database = Database::getConnection();
        $module = $database->getProvider();
        $module_handler = \Drupal::service('module_handler');
        // Ensure the update module is not installed.
        $this->assertFalse($module_handler->moduleExists('update'), 'The Update module is not installed.');
        // Assert that the module that is providing the database driver has been
        // installed.
        $this->assertTrue($module_handler->moduleExists($module));
        // The module that is providing the database driver should be uninstallable.
        try {
            $this->container
                ->get('module_installer')
                ->uninstall([
                $module,
            ]);
            $this->fail("Uninstalled {$module} module.");
        } catch (ModuleUninstallValidatorException $e) {
            $module_name = $module_handler->getName($module);
            $driver = $database->driver();
            $this->assertStringContainsString("The module '{$module_name}' is providing the database driver '{$driver}'.", $e->getMessage());
        }
    }

}