ConfigImportUITest.php in Drupal 8

Namespace

Drupal\Tests\config\Functional

File

core/modules/config/tests/src/Functional/ConfigImportUITest.php

<?php

namespace Drupal\Tests\config\Functional;

use Drupal\Component\Utility\Html;
use Drupal\Component\Render\FormattableMarkup;
use Drupal\Core\Config\InstallStorage;
use Drupal\Tests\BrowserTestBase;

/**
 * Tests the user interface for importing configuration.
 *
 * @group config
 */
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('[e-mail]', [
      '@type' => $node_type
        ->id(),
    ]));
    $this
      ->assertText(new FormattableMarkup('[e-mail]', [
      '@type' => $node_type
        ->id(),
    ]));
    $this
      ->assertText(new FormattableMarkup('[e-mail]', [
      '@type' => $node_type
        ->id(),
    ]));
    $this
      ->assertText(new FormattableMarkup('[e-mail]', [
      '@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('[e-mail]', [
      '@type' => $node_type
        ->id(),
    ]));
    $this
      ->assertText(new FormattableMarkup('[e-mail]', [
      '@type' => $node_type
        ->id(),
    ]));
    $this
      ->assertText(new FormattableMarkup('[e-mail]', [
      '@type' => $node_type
        ->id(),
    ]));
    $this
      ->assertText(new FormattableMarkup('[e-mail]', [
      '@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('[e-mail]', [
      '@type' => $node_type
        ->id(),
    ]));
    $this
      ->assertNoText(new FormattableMarkup('[e-mail]', [
      '@type' => $node_type
        ->id(),
    ]));
    $this
      ->assertNoText(new FormattableMarkup('[e-mail]', [
      '@type' => $node_type
        ->id(),
    ]));
    $this
      ->assertNoText(new FormattableMarkup('[e-mail]', [
      '@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.');
  }

}

Classes

Name	Description
ConfigImportUITest	Tests the user interface for importing configuration.