class ConfigImportUITest

class ConfigImportUITest extends BrowserTestBase {
    
    /**
     * Modules to install.
     *
     * @var array
     */
    public static $modules = [
        'config',
        'config_test',
        'config_import_test',
        'text',
        'options',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'classy';
    
    /**
     * A user with the 'synchronize configuration' permission.
     *
     * @var \Drupal\user\UserInterface
     */
    protected $webUser;
    protected function setUp() {
        parent::setUp();
        $this->webUser = $this->drupalCreateUser([
            'synchronize configuration',
        ]);
        $this->drupalLogin($this->webUser);
        $this->copyConfig($this->container
            ->get('config.storage'), $this->container
            ->get('config.storage.sync'));
    }
    
    /**
     * Tests importing configuration.
     */
    public function testImport() {
        $name = 'system.site';
        $dynamic_name = 'config_test.dynamic.new';
        
        /** @var \Drupal\Core\Config\StorageInterface $sync */
        $sync = $this->container
            ->get('config.storage.sync');
        $this->drupalGet('admin/config/development/configuration');
        $this->assertText('There are no configuration changes to import.');
        $this->assertNoFieldById('edit-submit', t('Import all'));
        // Create updated configuration object.
        $new_site_name = 'Config import test ' . $this->randomString();
        $this->prepareSiteNameUpdate($new_site_name);
        $this->assertIdentical($sync->exists($name), TRUE, $name . ' found.');
        // Create new config entity.
        $original_dynamic_data = [
            'uuid' => '30df59bd-7b03-4cf7-bb35-d42fc49f0651',
            'langcode' => \Drupal::languageManager()->getDefaultLanguage()
                ->getId(),
            'status' => TRUE,
            'dependencies' => [],
            'id' => 'new',
            'label' => 'New',
            'weight' => 0,
            'style' => '',
            'size' => '',
            'size_value' => '',
            'protected_property' => '',
        ];
        $sync->write($dynamic_name, $original_dynamic_data);
        $this->assertIdentical($sync->exists($dynamic_name), TRUE, $dynamic_name . ' found.');
        // Enable the Automated Cron and Ban modules during import. The Ban
        // module is used because it creates a table during the install.
        // The Automated Cron module is used because it creates a single simple
        // configuration file during the install.
        $core_extension = $this->config('core.extension')
            ->get();
        $core_extension['module']['automated_cron'] = 0;
        $core_extension['module']['ban'] = 0;
        $core_extension['module'] = module_config_sort($core_extension['module']);
        // Bartik is a subtheme of classy so classy must be enabled.
        $core_extension['theme']['classy'] = 0;
        $core_extension['theme']['bartik'] = 0;
        $sync->write('core.extension', $core_extension);
        // Use the install storage so that we can read configuration from modules
        // and themes that are not installed.
        $install_storage = new InstallStorage();
        // Set the Bartik theme as default.
        $system_theme = $this->config('system.theme')
            ->get();
        $system_theme['default'] = 'bartik';
        $sync->write('system.theme', $system_theme);
        // Read the automated_cron config from module default config folder.
        $settings = $install_storage->read('automated_cron.settings');
        $settings['interval'] = 10000;
        $sync->write('automated_cron.settings', $settings);
        // Uninstall the Options and Text modules to ensure that dependencies are
        // handled correctly. Options depends on Text so Text should be installed
        // first. Since they were enabled during the test setup the core.extension
        // file in sync will already contain them.
        \Drupal::service('module_installer')->uninstall([
            'text',
            'options',
        ]);
        // Set the state system to record installations and uninstallations.
        \Drupal::state()->set('ConfigImportUITest.core.extension.modules_installed', []);
        \Drupal::state()->set('ConfigImportUITest.core.extension.modules_uninstalled', []);
        // Verify that both appear as ready to import.
        $this->drupalGet('admin/config/development/configuration');
        $this->assertRaw('<td>' . $name);
        $this->assertRaw('<td>' . $dynamic_name);
        $this->assertRaw('<td>core.extension');
        $this->assertRaw('<td>system.theme');
        $this->assertRaw('<td>automated_cron.settings');
        $this->assertFieldById('edit-submit', t('Import all'));
        // Import and verify that both do not appear anymore.
        $this->drupalPostForm(NULL, [], t('Import all'));
        $this->assertNoRaw('<td>' . $name);
        $this->assertNoRaw('<td>' . $dynamic_name);
        $this->assertNoRaw('<td>core.extension');
        $this->assertNoRaw('<td>system.theme');
        $this->assertNoRaw('<td>automated_cron.settings');
        $this->assertNoFieldById('edit-submit', t('Import all'));
        // Verify that there are no further changes to import.
        $this->assertText(t('There are no configuration changes to import.'));
        $this->rebuildContainer();
        // Verify site name has changed.
        $this->assertIdentical($new_site_name, $this->config('system.site')
            ->get('name'));
        // Verify that new config entity exists.
        $this->assertIdentical($original_dynamic_data, $this->config($dynamic_name)
            ->get());
        // Verify the cache got cleared.
        $this->assertTrue(isset($GLOBALS['hook_cache_flush']));
        $this->rebuildContainer();
        $this->assertTrue(\Drupal::moduleHandler()->moduleExists('ban'), 'Ban module installed during import.');
        $this->assertTrue(\Drupal::database()->schema()
            ->tableExists('ban_ip'), 'The database table ban_ip exists.');
        $this->assertTrue(\Drupal::moduleHandler()->moduleExists('automated_cron'), 'Automated Cron module installed during import.');
        $this->assertTrue(\Drupal::moduleHandler()->moduleExists('options'), 'Options module installed during import.');
        $this->assertTrue(\Drupal::moduleHandler()->moduleExists('text'), 'Text module installed during import.');
        $this->assertTrue(\Drupal::service('theme_handler')->themeExists('bartik'), 'Bartik theme installed during import.');
        // Ensure installations and uninstallation occur as expected.
        $installed = \Drupal::state()->get('ConfigImportUITest.core.extension.modules_installed', []);
        $uninstalled = \Drupal::state()->get('ConfigImportUITest.core.extension.modules_uninstalled', []);
        $expected = [
            'automated_cron',
            'ban',
            'text',
            'options',
        ];
        $this->assertIdentical($expected, $installed, 'Automated Cron, Ban, Text and Options modules installed in the correct order.');
        $this->assertTrue(empty($uninstalled), 'No modules uninstalled during import');
        // Verify that the automated_cron configuration object was only written
        // once during the import process and only with the value set in the staged
        // configuration. This verifies that the module's default configuration is
        // used during configuration import and, additionally, that after installing
        // a module, that configuration is not synced twice.
        $interval_values = \Drupal::state()->get('ConfigImportUITest.automated_cron.settings.interval', []);
        $this->assertIdentical($interval_values, [
            10000,
        ]);
        $core_extension = $this->config('core.extension')
            ->get();
        unset($core_extension['module']['automated_cron']);
        unset($core_extension['module']['ban']);
        unset($core_extension['module']['options']);
        unset($core_extension['module']['text']);
        unset($core_extension['theme']['bartik']);
        $sync->write('core.extension', $core_extension);
        $sync->delete('automated_cron.settings');
        $sync->delete('text.settings');
        $system_theme = $this->config('system.theme')
            ->get();
        $system_theme['default'] = 'stark';
        $system_theme['admin'] = 'stark';
        $sync->write('system.theme', $system_theme);
        // Set the state system to record installations and uninstallations.
        \Drupal::state()->set('ConfigImportUITest.core.extension.modules_installed', []);
        \Drupal::state()->set('ConfigImportUITest.core.extension.modules_uninstalled', []);
        // Verify that both appear as ready to import.
        $this->drupalGet('admin/config/development/configuration');
        $this->assertRaw('<td>core.extension');
        $this->assertRaw('<td>system.theme');
        $this->assertRaw('<td>automated_cron.settings');
        // Import and verify that both do not appear anymore.
        $this->drupalPostForm(NULL, [], t('Import all'));
        $this->assertNoRaw('<td>core.extension');
        $this->assertNoRaw('<td>system.theme');
        $this->assertNoRaw('<td>automated_cron.settings');
        $this->rebuildContainer();
        $this->assertFalse(\Drupal::moduleHandler()->moduleExists('ban'), 'Ban module uninstalled during import.');
        $this->assertFalse(\Drupal::database()->schema()
            ->tableExists('ban_ip'), 'The database table ban_ip does not exist.');
        $this->assertFalse(\Drupal::moduleHandler()->moduleExists('automated_cron'), 'Automated cron module uninstalled during import.');
        $this->assertFalse(\Drupal::moduleHandler()->moduleExists('options'), 'Options module uninstalled during import.');
        $this->assertFalse(\Drupal::moduleHandler()->moduleExists('text'), 'Text module uninstalled during import.');
        // Ensure installations and uninstallation occur as expected.
        $installed = \Drupal::state()->get('ConfigImportUITest.core.extension.modules_installed', []);
        $uninstalled = \Drupal::state()->get('ConfigImportUITest.core.extension.modules_uninstalled', []);
        $expected = [
            'options',
            'text',
            'ban',
            'automated_cron',
        ];
        $this->assertIdentical($expected, $uninstalled, 'Options, Text, Ban and Automated Cron modules uninstalled in the correct order.');
        $this->assertTrue(empty($installed), 'No modules installed during import');
        $theme_info = \Drupal::service('theme_handler')->listInfo();
        $this->assertFalse(isset($theme_info['bartik']), 'Bartik theme uninstalled during import.');
        // Verify that the automated_cron.settings configuration object was only
        // deleted once during the import process.
        $delete_called = \Drupal::state()->get('ConfigImportUITest.automated_cron.settings.delete', 0);
        $this->assertIdentical($delete_called, 1, "The automated_cron.settings configuration was deleted once during configuration import.");
    }
    
    /**
     * Tests concurrent importing of configuration.
     */
    public function testImportLock() {
        // Create updated configuration object.
        $new_site_name = 'Config import test ' . $this->randomString();
        $this->prepareSiteNameUpdate($new_site_name);
        // Verify that there are configuration differences to import.
        $this->drupalGet('admin/config/development/configuration');
        $this->assertNoText(t('There are no configuration changes to import.'));
        // Acquire a fake-lock on the import mechanism.
        $config_importer = $this->configImporter();
        $this->container
            ->get('lock.persistent')
            ->acquire($config_importer::LOCK_NAME);
        // Attempt to import configuration and verify that an error message appears.
        $this->drupalPostForm(NULL, [], t('Import all'));
        $this->assertText(t('Another request may be synchronizing configuration already.'));
        // Release the lock, just to keep testing sane.
        $this->container
            ->get('lock.persistent')
            ->release($config_importer::LOCK_NAME);
        // Verify site name has not changed.
        $this->assertNotEqual($new_site_name, $this->config('system.site')
            ->get('name'));
    }
    
    /**
     * Tests verification of site UUID before importing configuration.
     */
    public function testImportSiteUuidValidation() {
        $sync = \Drupal::service('config.storage.sync');
        // Create updated configuration object.
        $config_data = $this->config('system.site')
            ->get();
        // Generate a new site UUID.
        $config_data['uuid'] = \Drupal::service('uuid')->generate();
        $sync->write('system.site', $config_data);
        // Verify that there are configuration differences to import.
        $this->drupalGet('admin/config/development/configuration');
        $this->assertText(t('The staged configuration cannot be imported, because it originates from a different site than this site. You can only synchronize configuration between cloned instances of this site.'));
        $this->assertNoFieldById('edit-submit', t('Import all'));
    }
    
    /**
     * Tests the screen that shows differences between active and sync.
     */
    public function testImportDiff() {
        $sync = $this->container
            ->get('config.storage.sync');
        $config_name = 'config_test.system';
        $change_key = 'foo';
        $remove_key = '404';
        $add_key = 'biff';
        $add_data = '<em>bangpow</em>';
        $change_data = '<p><em>foobar</em></p>';
        $original_data = [
            'foo' => '<p>foobar</p>',
            'baz' => '<strong>no change</strong>',
            '404' => '<em>herp</em>',
        ];
        // Update active storage to have html in config data.
        $this->config($config_name)
            ->setData($original_data)
            ->save();
        // Change a configuration value in sync.
        $sync_data = $original_data;
        $sync_data[$change_key] = $change_data;
        $sync_data[$add_key] = $add_data;
        unset($sync_data[$remove_key]);
        $sync->write($config_name, $sync_data);
        // Load the diff UI and verify that the diff reflects the change.
        $this->drupalGet('admin/config/development/configuration/sync/diff/' . $config_name);
        $this->assertNoRaw('&amp;nbsp;');
        $this->assertTitle("View changes of {$config_name} | Drupal");
        // The following assertions do not use $this::assertEscaped() because
        // \Drupal\Component\Diff\DiffFormatter adds markup that signifies what has
        // changed.
        // Changed values are escaped.
        $this->assertText(Html::escape("foo: '<p><em>foobar</em></p>'"));
        $this->assertText(Html::escape("foo: '<p>foobar</p>'"));
        // The no change values are escaped.
        $this->assertText(Html::escape("baz: '<strong>no change</strong>'"));
        // Added value is escaped.
        $this->assertText(Html::escape("biff: '<em>bangpow</em>'"));
        // Deleted value is escaped.
        $this->assertText(Html::escape("404: '<em>herp</em>'"));
        // Verify diff colors are displayed.
        $result = $this->xpath('//table[contains(@class, :class)]', [
            ':class' => 'diff',
        ]);
        $this->assertCount(1, $result, "Diff UI is displaying colors.");
        // Reset data back to original, and remove a key
        $sync_data = $original_data;
        unset($sync_data[$remove_key]);
        $sync->write($config_name, $sync_data);
        // Load the diff UI and verify that the diff reflects a removed key.
        $this->drupalGet('admin/config/development/configuration/sync/diff/' . $config_name);
        // The no change values are escaped.
        $this->assertText(Html::escape("foo: '<p>foobar</p>'"));
        $this->assertText(Html::escape("baz: '<strong>no change</strong>'"));
        // Removed key is escaped.
        $this->assertText(Html::escape("404: '<em>herp</em>'"));
        // Reset data back to original and add a key
        $sync_data = $original_data;
        $sync_data[$add_key] = $add_data;
        $sync->write($config_name, $sync_data);
        // Load the diff UI and verify that the diff reflects an added key.
        $this->drupalGet('admin/config/development/configuration/sync/diff/' . $config_name);
        // The no change values are escaped.
        $this->assertText(Html::escape("baz: '<strong>no change</strong>'"));
        $this->assertText(Html::escape("404: '<em>herp</em>'"));
        // Added key is escaped.
        $this->assertText(Html::escape("biff: '<em>bangpow</em>'"));
    }
    
    /**
     * Tests that multiple validation errors are listed on the page.
     */
    public function testImportValidation() {
        // Set state value so that
        // \Drupal\config_import_test\EventSubscriber::onConfigImportValidate() logs
        // validation errors.
        \Drupal::state()->set('config_import_test.config_import_validate_fail', TRUE);
        // Ensure there is something to import.
        $new_site_name = 'Config import test ' . $this->randomString();
        $this->prepareSiteNameUpdate($new_site_name);
        $this->drupalGet('admin/config/development/configuration');
        $this->assertNoText(t('There are no configuration changes to import.'));
        $this->drupalPostForm(NULL, [], t('Import all'));
        // Verify that the validation messages appear.
        $this->assertText('The configuration cannot be imported because it failed validation for the following reasons:');
        $this->assertText('Config import validate error 1.');
        $this->assertText('Config import validate error 2.');
        // Verify site name has not changed.
        $this->assertNotEqual($new_site_name, $this->config('system.site')
            ->get('name'));
    }
    public function testConfigUninstallConfigException() {
        $sync = $this->container
            ->get('config.storage.sync');
        $core_extension = $this->config('core.extension')
            ->get();
        unset($core_extension['module']['config']);
        $sync->write('core.extension', $core_extension);
        $this->drupalGet('admin/config/development/configuration');
        $this->assertText('core.extension');
        // Import and verify that both do not appear anymore.
        $this->drupalPostForm(NULL, [], t('Import all'));
        $this->assertText('Can not uninstall the Configuration module as part of a configuration synchronization through the user interface.');
    }
    public function prepareSiteNameUpdate($new_site_name) {
        $sync = $this->container
            ->get('config.storage.sync');
        // Create updated configuration object.
        $config_data = $this->config('system.site')
            ->get();
        $config_data['name'] = $new_site_name;
        $sync->write('system.site', $config_data);
    }
    
    /**
     * Tests an import that results in an error.
     */
    public function testImportErrorLog() {
        $name_primary = 'config_test.dynamic.primary';
        $name_secondary = 'config_test.dynamic.secondary';
        $sync = $this->container
            ->get('config.storage.sync');
        $uuid = $this->container
            ->get('uuid');
        $values_primary = [
            'uuid' => $uuid->generate(),
            'langcode' => 'en',
            'status' => TRUE,
            'dependencies' => [],
            'id' => 'primary',
            'label' => 'Primary',
            'weight' => 0,
            'style' => NULL,
            'size' => NULL,
            'size_value' => NULL,
            'protected_property' => NULL,
        ];
        $sync->write($name_primary, $values_primary);
        $values_secondary = [
            'uuid' => $uuid->generate(),
            'langcode' => 'en',
            'status' => TRUE,
            // Add a dependency on primary, to ensure that is synced first.
'dependencies' => [
                'config' => [
                    $name_primary,
                ],
            ],
            'id' => 'secondary',
            'label' => 'Secondary Sync',
            'weight' => 0,
            'style' => NULL,
            'size' => NULL,
            'size_value' => NULL,
            'protected_property' => NULL,
        ];
        $sync->write($name_secondary, $values_secondary);
        // Verify that there are configuration differences to import.
        $this->drupalGet('admin/config/development/configuration');
        $this->assertNoText(t('There are no configuration changes to import.'));
        // Attempt to import configuration and verify that an error message appears.
        $this->drupalPostForm(NULL, [], t('Import all'));
        $this->assertText(new FormattableMarkup('Deleted and replaced configuration entity "@name"', [
            '@name' => $name_secondary,
        ]));
        $this->assertText(t('The configuration was imported with errors.'));
        $this->assertNoText(t('The configuration was imported successfully.'));
        $this->assertText(t('There are no configuration changes to import.'));
    }
    
    /**
     * Tests the config importer cannot delete bundles with existing entities.
     *
     * @see \Drupal\Core\Entity\Event\BundleConfigImportValidate
     */
    public function testEntityBundleDelete() {
        \Drupal::service('module_installer')->install([
            'node',
        ]);
        $this->copyConfig($this->container
            ->get('config.storage'), $this->container
            ->get('config.storage.sync'));
        $node_type = $this->drupalCreateContentType();
        $node = $this->drupalCreateNode([
            'type' => $node_type->id(),
        ]);
        $this->drupalGet('admin/config/development/configuration');
        // The node type, body field and entity displays will be scheduled for
        // removal.
        $this->assertText(new FormattableMarkup('node.type.@type', [
            '@type' => $node_type->id(),
        ]));
        $this->assertText(new FormattableMarkup('field.field.node.@type.body', [
            '@type' => $node_type->id(),
        ]));
        $this->assertText(new FormattableMarkup('core.entity_view_display.node.@type.teaser', [
            '@type' => $node_type->id(),
        ]));
        $this->assertText(new FormattableMarkup('core.entity_view_display.node.@type.default', [
            '@type' => $node_type->id(),
        ]));
        $this->assertText(new FormattableMarkup('core.entity_form_display.node.@type.default', [
            '@type' => $node_type->id(),
        ]));
        // Attempt to import configuration and verify that an error message appears
        // and the node type, body field and entity displays are still scheduled for
        // removal.
        $this->drupalPostForm(NULL, [], t('Import all'));
        $validation_message = t('Entities exist of type %entity_type and %bundle_label %bundle. These entities need to be deleted before importing.', [
            '%entity_type' => $node->getEntityType()
                ->getLabel(),
            '%bundle_label' => $node->getEntityType()
                ->getBundleLabel(),
            '%bundle' => $node_type->label(),
        ]);
        $this->assertRaw($validation_message);
        $this->assertText(new FormattableMarkup('node.type.@type', [
            '@type' => $node_type->id(),
        ]));
        $this->assertText(new FormattableMarkup('field.field.node.@type.body', [
            '@type' => $node_type->id(),
        ]));
        $this->assertText(new FormattableMarkup('core.entity_view_display.node.@type.teaser', [
            '@type' => $node_type->id(),
        ]));
        $this->assertText(new FormattableMarkup('core.entity_view_display.node.@type.default', [
            '@type' => $node_type->id(),
        ]));
        $this->assertText(new FormattableMarkup('core.entity_form_display.node.@type.default', [
            '@type' => $node_type->id(),
        ]));
        // Delete the node and try to import again.
        $node->delete();
        $this->drupalPostForm(NULL, [], t('Import all'));
        $this->assertNoRaw($validation_message);
        $this->assertText(t('There are no configuration changes to import.'));
        $this->assertNoText(new FormattableMarkup('node.type.@type', [
            '@type' => $node_type->id(),
        ]));
        $this->assertNoText(new FormattableMarkup('field.field.node.@type.body', [
            '@type' => $node_type->id(),
        ]));
        $this->assertNoText(new FormattableMarkup('core.entity_view_display.node.@type.teaser', [
            '@type' => $node_type->id(),
        ]));
        $this->assertNoText(new FormattableMarkup('core.entity_view_display.node.@type.default', [
            '@type' => $node_type->id(),
        ]));
        $this->assertNoText(new FormattableMarkup('core.entity_form_display.node.@type.default', [
            '@type' => $node_type->id(),
        ]));
    }
    
    /**
     * Tests config importer cannot uninstall extensions which are depended on.
     *
     * @see \Drupal\Core\EventSubscriber\ConfigImportSubscriber
     */
    public function testExtensionValidation() {
        \Drupal::service('module_installer')->install([
            'node',
        ]);
        \Drupal::service('theme_installer')->install([
            'bartik',
        ]);
        $this->rebuildContainer();
        $sync = $this->container
            ->get('config.storage.sync');
        $this->copyConfig($this->container
            ->get('config.storage'), $sync);
        $core = $sync->read('core.extension');
        // Node depends on text.
        unset($core['module']['text']);
        $module_data = $this->container
            ->get('extension.list.module')
            ->getList();
        $this->assertTrue(isset($module_data['node']->requires['text']), 'The Node module depends on the Text module.');
        // Bartik depends on classy.
        unset($core['theme']['classy']);
        $theme_data = \Drupal::service('theme_handler')->rebuildThemeData();
        $this->assertTrue(isset($theme_data['bartik']->requires['classy']), 'The Bartik theme depends on the Classy theme.');
        // This module does not exist.
        $core['module']['does_not_exist'] = 0;
        // This theme does not exist.
        $core['theme']['does_not_exist'] = 0;
        $sync->write('core.extension', $core);
        $this->drupalPostForm('admin/config/development/configuration', [], t('Import all'));
        $this->assertText('The configuration cannot be imported because it failed validation for the following reasons:');
        $this->assertText('Unable to uninstall the Text module since the Node module is installed.');
        $this->assertText('Unable to uninstall the Classy theme since the Bartik theme is installed.');
        $this->assertText('Unable to install the does_not_exist module since it does not exist.');
        $this->assertText('Unable to install the does_not_exist theme since it does not exist.');
    }
    
    /**
     * Tests that errors set in the batch and on the ConfigImporter are merged.
     */
    public function testBatchErrors() {
        $new_site_name = 'Config import test ' . $this->randomString();
        $this->prepareSiteNameUpdate($new_site_name);
        \Drupal::state()->set('config_import_steps_alter.error', TRUE);
        $this->drupalPostForm('admin/config/development/configuration', [], t('Import all'));
        $this->assertSession()
            ->responseContains('_config_import_test_config_import_steps_alter batch error');
        $this->assertSession()
            ->responseContains('_config_import_test_config_import_steps_alter ConfigImporter error');
        $this->assertSession()
            ->responseContains('The configuration was imported with errors.');
    }

}