class ConfigExportImportUITest

class ConfigExportImportUITest extends BrowserTestBase {
  
  /**
   * The contents of the config export tarball, held between test methods.
   *
   * @var string
   */
  protected $tarball;
  
  /**
   * Holds the original 'site slogan' before testing.
   *
   * @var string
   */
  protected $originalSlogan;
  
  /**
   * Holds a randomly generated new 'site slogan' for testing.
   *
   * @var string
   */
  protected $newSlogan;
  
  /**
   * Holds a content type.
   *
   * @var \Drupal\node\NodeInterface
   */
  protected $contentType;
  
  /**
   * Holds the randomly-generated name of a field.
   *
   * @var string
   */
  protected $fieldName;
  
  /**
   * Holds the field storage entity for $fieldName.
   *
   * @var \Drupal\field\FieldStorageConfigInterface
   */
  protected $fieldStorage;
  
  /**
   * {@inheritdoc}
   */
  protected static $modules = [
    'config',
    'node',
    'field',
  ];
  
  /**
   * {@inheritdoc}
   */
  protected $defaultTheme = 'stark';
  
  /**
   * {@inheritdoc}
   */
  protected function setUp() : void {
    parent::setUp();
    // Create a content type.
    $this->contentType = $this->drupalCreateContentType([
      'type' => 'test',
    ]);
    $this->drupalLogin($this->drupalCreateUser([
      'export configuration',
      'import configuration',
      'synchronize configuration',
      'access administration pages',
      'administer site configuration',
      'create test content',
      'view the administration theme',
    ]));
  }
  
  /**
   * Tests a simple site export import case.
   */
  public function testExportImport() : void {
    // After installation there is no snapshot and nothing to import.
    $this->drupalGet('admin/config/development/configuration');
    $this->assertSession()
      ->pageTextNotContains('Warning message');
    $this->assertSession()
      ->pageTextContains('There is no staged configuration.');
    $this->originalSlogan = $this->config('system.site')
      ->get('slogan');
    $this->newSlogan = $this->randomString(16);
    $this->assertNotEquals($this->originalSlogan, $this->newSlogan);
    $this->config('system.site')
      ->set('slogan', $this->newSlogan)
      ->save();
    $this->assertEquals($this->newSlogan, $this->config('system.site')
      ->get('slogan'));
    // Create a field.
    $this->fieldName = $this->randomMachineName();
    $this->fieldStorage = FieldStorageConfig::create([
      'field_name' => $this->fieldName,
      'entity_type' => 'node',
      'type' => 'text',
    ]);
    $this->fieldStorage
      ->save();
    FieldConfig::create([
      'field_storage' => $this->fieldStorage,
      'bundle' => $this->contentType
        ->id(),
    ])
      ->save();
    $display_repository = $this->container
      ->get('entity_display.repository');
    // Update the displays so that configuration does not change unexpectedly on
    // import.
    $display_repository->getFormDisplay('node', $this->contentType
      ->id(), 'default')
      ->setComponent($this->fieldName, [
      'type' => 'text_textfield',
    ])
      ->save();
    $display_repository->getViewDisplay('node', $this->contentType
      ->id(), 'full')
      ->setComponent($this->fieldName)
      ->save();
    $display_repository->getViewDisplay('node', $this->contentType
      ->id(), 'default')
      ->setComponent($this->fieldName)
      ->save();
    $display_repository->getViewDisplay('node', $this->contentType
      ->id(), 'teaser')
      ->removeComponent($this->fieldName)
      ->save();
    $this->drupalGet('node/add/' . $this->contentType
      ->id());
    $this->assertSession()
      ->fieldValueEquals("{$this->fieldName}[0][value]", '');
    // Export the configuration.
    $this->drupalGet('admin/config/development/configuration/full/export');
    $this->submitForm([], 'Export');
    $this->tarball = $this->getSession()
      ->getPage()
      ->getContent();
    $this->config('system.site')
      ->set('slogan', $this->originalSlogan)
      ->save();
    $this->assertEquals($this->originalSlogan, $this->config('system.site')
      ->get('slogan'));
    // Delete the custom field.
    $fields = FieldConfig::loadMultiple();
    foreach ($fields as $field) {
      if ($field->getName() == $this->fieldName) {
        $field->delete();
      }
    }
    $field_storages = FieldStorageConfig::loadMultiple();
    foreach ($field_storages as $field_storage) {
      if ($field_storage->getName() == $this->fieldName) {
        $field_storage->delete();
      }
    }
    $this->drupalGet('node/add/' . $this->contentType
      ->id());
    $this->assertSession()
      ->fieldNotExists("{$this->fieldName}[0][value]");
    // Import the configuration.
    $filename = 'temporary://' . $this->randomMachineName();
    file_put_contents($filename, $this->tarball);
    $this->drupalGet('admin/config/development/configuration/full/import');
    $this->submitForm([
      'files[import_tarball]' => $filename,
    ], 'Upload');
    // There is no snapshot yet because an import has never run.
    $this->assertSession()
      ->pageTextNotContains('Warning message');
    $this->assertSession()
      ->pageTextNotContains('There is no staged configuration.');
    $this->assertSession()
      ->pageTextContains($this->contentType
      ->label());
    $this->submitForm([], 'Import all');
    // After importing the snapshot has been updated and there are no warnings.
    $this->assertSession()
      ->pageTextNotContains('Warning message');
    $this->assertSession()
      ->pageTextContains('The staged configuration is identical to the active configuration.');
    $this->assertEquals($this->newSlogan, $this->config('system.site')
      ->get('slogan'));
    $this->drupalGet('node/add');
    $this->assertSession()
      ->fieldValueEquals("{$this->fieldName}[0][value]", '');
    $this->config('system.site')
      ->set('slogan', $this->originalSlogan)
      ->save();
    $this->drupalGet('admin/config/development/configuration');
    $this->assertSession()
      ->pageTextContains('Warning message');
    $this->assertSession()
      ->pageTextContains('The following items in your active configuration have changes since the last import that may be lost on the next import.');
    // Ensure the item is displayed as part of a list (to avoid false matches
    // on the rest of the page) and that the list markup is not escaped.
    $this->assertSession()
      ->responseContains('<li>system.site</li>');
    // Remove everything from sync. The warning about differences between the
    // active and snapshot should no longer exist.
    \Drupal::service('config.storage.sync')->deleteAll();
    $this->drupalGet('admin/config/development/configuration');
    $this->assertSession()
      ->pageTextNotContains('Warning message');
    $this->assertSession()
      ->pageTextNotContains('The following items in your active configuration have changes since the last import that may be lost on the next import.');
    $this->assertSession()
      ->pageTextContains('There is no staged configuration.');
    // Write a file to sync. The warning about differences between the active
    // and snapshot should now exist.
    /** @var \Drupal\Core\Config\StorageInterface $sync */
    $sync = $this->container
      ->get('config.storage.sync');
    $data = $this->config('system.site')
      ->get();
    $data['slogan'] = 'in the face';
    $this->copyConfig($this->container
      ->get('config.storage'), $sync);
    $sync->write('system.site', $data);
    $this->drupalGet('admin/config/development/configuration');
    $this->assertSession()
      ->pageTextContains('Warning message');
    $this->assertSession()
      ->pageTextContains('The following items in your active configuration have changes since the last import that may be lost on the next import.');
    // Ensure the item is displayed as part of a list (to avoid false matches
    // on the rest of the page) and that the list markup is not escaped.
    $this->assertSession()
      ->responseContains('<li>system.site</li>');
  }
  
  /**
   * Tests an export and import of collections.
   */
  public function testExportImportCollections() : void {
    /** @var \Drupal\Core\Config\StorageInterface $active_storage */
    $active_storage = \Drupal::service('config.storage');
    $test1_storage = $active_storage->createCollection('collection.test1');
    $test1_storage->write('config_test.create', [
      'foo' => 'bar',
    ]);
    $test1_storage->write('config_test.update', [
      'foo' => 'bar',
    ]);
    $test2_storage = $active_storage->createCollection('collection.test2');
    $test2_storage->write('config_test.another_create', [
      'foo' => 'bar',
    ]);
    $test2_storage->write('config_test.another_update', [
      'foo' => 'bar',
    ]);
    // Export the configuration.
    $this->drupalGet('admin/config/development/configuration/full/export');
    $this->submitForm([], 'Export');
    $this->tarball = $this->getSession()
      ->getPage()
      ->getContent();
    $filename = \Drupal::service('file_system')->getTempDirectory() . '/' . $this->randomMachineName();
    file_put_contents($filename, $this->tarball);
    // Set up the active storage collections to test import.
    $test1_storage->delete('config_test.create');
    $test1_storage->write('config_test.update', [
      'foo' => 'baz',
    ]);
    $test1_storage->write('config_test.delete', [
      'foo' => 'bar',
    ]);
    $test2_storage->delete('config_test.another_create');
    $test2_storage->write('config_test.another_update', [
      'foo' => 'baz',
    ]);
    $test2_storage->write('config_test.another_delete', [
      'foo' => 'bar',
    ]);
    // Create a snapshot.
    $snapshot_storage = \Drupal::service('config.storage.snapshot');
    \Drupal::service('config.manager')->createSnapshot($active_storage, $snapshot_storage);
    // Ensure that the snapshot has the expected collection data before import.
    $test1_snapshot = $snapshot_storage->createCollection('collection.test1');
    $data = $test1_snapshot->read('config_test.delete');
    $this->assertEquals([
      'foo' => 'bar',
    ], $data, 'The config_test.delete in collection.test1 exists in the snapshot storage.');
    $data = $test1_snapshot->read('config_test.update');
    $this->assertEquals([
      'foo' => 'baz',
    ], $data, 'The config_test.update in collection.test1 exists in the snapshot storage.');
    $this->assertFalse($test1_snapshot->read('config_test.create'), 'The config_test.create in collection.test1 does not exist in the snapshot storage.');
    $test2_snapshot = $snapshot_storage->createCollection('collection.test2');
    $data = $test2_snapshot->read('config_test.another_delete');
    $this->assertEquals([
      'foo' => 'bar',
    ], $data, 'The config_test.another_delete in collection.test2 exists in the snapshot storage.');
    $data = $test2_snapshot->read('config_test.another_update');
    $this->assertEquals([
      'foo' => 'baz',
    ], $data, 'The config_test.another_update in collection.test2 exists in the snapshot storage.');
    $this->assertFalse($test2_snapshot->read('config_test.another_create'), 'The config_test.another_create in collection.test2 does not exist in the snapshot storage.');
    // Create the tar that contains the expected content for the collections.
    $tar = new ArchiveTar($filename, 'gz');
    $content_list = $tar->listContent();
    // Convert the list of files into something easy to search.
    $files = [];
    foreach ($content_list as $file) {
      $files[] = $file['filename'];
    }
    $this->assertContains('collection/test1/config_test.create.yml', $files, 'Config export contains collection/test1/config_test.create.yml.');
    $this->assertContains('collection/test2/config_test.another_create.yml', $files, 'Config export contains collection/test2/config_test.another_create.yml.');
    $this->assertContains('collection/test1/config_test.update.yml', $files, 'Config export contains collection/test1/config_test.update.yml.');
    $this->assertContains('collection/test2/config_test.another_update.yml', $files, 'Config export contains collection/test2/config_test.another_update.yml.');
    $this->assertNotContains('collection/test1/config_test.delete.yml', $files, 'Config export does not contain collection/test1/config_test.delete.yml.');
    $this->assertNotContains('collection/test2/config_test.another_delete.yml', $files, 'Config export does not contain collection/test2/config_test.another_delete.yml.');
    $this->drupalGet('admin/config/development/configuration/full/import');
    $this->submitForm([
      'files[import_tarball]' => $filename,
    ], 'Upload');
    // Verify that there are configuration differences to import.
    $this->drupalGet('admin/config/development/configuration');
    $this->assertSession()
      ->pageTextNotContains('There is no staged configuration.');
    $this->assertSession()
      ->pageTextContains('collection.test1 configuration collection');
    $this->assertSession()
      ->pageTextContains('collection.test2 configuration collection');
    $this->assertSession()
      ->pageTextContains('config_test.create');
    $this->assertSession()
      ->linkByHrefExists('admin/config/development/configuration/sync/diff_collection/collection.test1/config_test.create');
    $this->assertSession()
      ->pageTextContains('config_test.update');
    $this->assertSession()
      ->linkByHrefExists('admin/config/development/configuration/sync/diff_collection/collection.test1/config_test.update');
    $this->assertSession()
      ->pageTextContains('config_test.delete');
    $this->assertSession()
      ->linkByHrefExists('admin/config/development/configuration/sync/diff_collection/collection.test1/config_test.delete');
    $this->assertSession()
      ->pageTextContains('config_test.another_create');
    $this->assertSession()
      ->linkByHrefExists('admin/config/development/configuration/sync/diff_collection/collection.test2/config_test.another_create');
    $this->assertSession()
      ->pageTextContains('config_test.another_update');
    $this->assertSession()
      ->linkByHrefExists('admin/config/development/configuration/sync/diff_collection/collection.test2/config_test.another_update');
    $this->assertSession()
      ->pageTextContains('config_test.another_delete');
    $this->assertSession()
      ->linkByHrefExists('admin/config/development/configuration/sync/diff_collection/collection.test2/config_test.another_delete');
    $this->submitForm([], 'Import all');
    $this->assertSession()
      ->pageTextContains('The staged configuration is identical to the active configuration.');
    // Test data in collections.
    $data = $test1_storage->read('config_test.create');
    $this->assertEquals([
      'foo' => 'bar',
    ], $data, 'The config_test.create in collection.test1 has been created.');
    $data = $test1_storage->read('config_test.update');
    $this->assertEquals([
      'foo' => 'bar',
    ], $data, 'The config_test.update in collection.test1 has been updated.');
    $this->assertFalse($test1_storage->read('config_test.delete'), 'The config_test.delete in collection.test1 has been deleted.');
    $data = $test2_storage->read('config_test.another_create');
    $this->assertEquals([
      'foo' => 'bar',
    ], $data, 'The config_test.another_create in collection.test2 has been created.');
    $data = $test2_storage->read('config_test.another_update');
    $this->assertEquals([
      'foo' => 'bar',
    ], $data, 'The config_test.another_update in collection.test2 has been updated.');
    $this->assertFalse($test2_storage->read('config_test.another_delete'), 'The config_test.another_delete in collection.test2 has been deleted.');
    // Ensure that the snapshot has been updated with the collection data.
    $snapshot_storage = \Drupal::service('config.storage.snapshot');
    $test1_snapshot = $snapshot_storage->createCollection('collection.test1');
    $data = $test1_snapshot->read('config_test.create');
    $this->assertEquals([
      'foo' => 'bar',
    ], $data, 'The config_test.create in collection.test1 has been created in the snapshot storage.');
    $data = $test1_snapshot->read('config_test.update');
    $this->assertEquals([
      'foo' => 'bar',
    ], $data, 'The config_test.update in collection.test1 has been updated in the snapshot storage.');
    $this->assertFalse($test1_snapshot->read('config_test.delete'), 'The config_test.delete in collection.test1 does not exist in the snapshot storage.');
    $test2_snapshot = $snapshot_storage->createCollection('collection.test2');
    $data = $test2_snapshot->read('config_test.another_create');
    $this->assertEquals([
      'foo' => 'bar',
    ], $data, 'The config_test.another_create in collection.test2 has been created in the snapshot storage.');
    $data = $test2_snapshot->read('config_test.another_update');
    $this->assertEquals([
      'foo' => 'bar',
    ], $data, 'The config_test.another_update in collection.test2 has been updated in the snapshot storage.');
    $this->assertFalse($test2_snapshot->read('config_test.another_delete'), 'The config_test.another_delete in collection.test2 does not exist in the snapshot storage.');
  }

}