function ConfigOverrideTest::testConfOverride

Tests configuration override.

File

core/tests/Drupal/KernelTests/Core/Config/ConfigOverrideTest.php, line 33

Class

ConfigOverrideTest

Tests configuration overrides via $config in settings.php.

Namespace

Code

public function testConfOverride() : void {
  $expected_original_data = [
    'foo' => 'bar',
    'baz' => NULL,
    '404' => 'herp',
  ];
  // Set globals before installing to prove that the installed file does not
  // contain these values.
  $overrides['config_test.system']['foo'] = 'overridden';
  $overrides['config_test.system']['baz'] = 'injected';
  $overrides['config_test.system']['404'] = 'something';
  $GLOBALS['config'] = $overrides;
  $this->installConfig([
    'config_test',
  ]);
  // Verify that the original configuration data exists. Have to read storage
  // directly otherwise overrides will apply.
  $active = $this->container
    ->get('config.storage');
  $data = $active->read('config_test.system');
  $this->assertSame($expected_original_data['foo'], $data['foo']);
  $this->assertFalse(isset($data['baz']));
  $this->assertSame($expected_original_data['404'], $data['404']);
  // Get the configuration object with overrides.
  $config = \Drupal::configFactory()->get('config_test.system');
  // Verify that it contains the overridden data from $config.
  $this->assertSame($overrides['config_test.system']['foo'], $config->get('foo'));
  $this->assertSame($overrides['config_test.system']['baz'], $config->get('baz'));
  $this->assertSame($overrides['config_test.system']['404'], $config->get('404'));
  // Get the configuration object which does not have overrides.
  $config = \Drupal::configFactory()->getEditable('config_test.system');
  // Verify that it does not contains the overridden data from $config.
  $this->assertSame($expected_original_data['foo'], $config->get('foo'));
  $this->assertNull($config->get('baz'));
  $this->assertSame($expected_original_data['404'], $config->get('404'));
  // Set the value for 'baz' (on the original data).
  $expected_original_data['baz'] = 'original baz';
  $config->set('baz', $expected_original_data['baz']);
  // Set the value for '404' (on the original data).
  $expected_original_data['404'] = 'original 404';
  $config->set('404', $expected_original_data['404']);
  // Save the configuration object (having overrides applied).
  $config->save();
  // Reload it and verify that it still contains overridden data from $config.
  $config = \Drupal::config('config_test.system');
  $this->assertSame($overrides['config_test.system']['foo'], $config->get('foo'));
  $this->assertSame($overrides['config_test.system']['baz'], $config->get('baz'));
  $this->assertSame($overrides['config_test.system']['404'], $config->get('404'));
  // Verify that raw config data has changed.
  $this->assertSame($expected_original_data['foo'], $config->getOriginal('foo', FALSE));
  $this->assertSame($expected_original_data['baz'], $config->getOriginal('baz', FALSE));
  $this->assertSame($expected_original_data['404'], $config->getOriginal('404', FALSE));
  // Write file to sync.
  $sync = $this->container
    ->get('config.storage.sync');
  $expected_new_data = [
    'foo' => 'barbar',
    '404' => 'try again',
  ];
  $sync->write('config_test.system', $expected_new_data);
  // Import changed data from sync to active.
  $this->configImporter()
    ->import();
  $data = $active->read('config_test.system');
  // Verify that the new configuration data exists. Have to read storage
  // directly otherwise overrides will apply.
  $this->assertSame($expected_new_data['foo'], $data['foo']);
  $this->assertFalse(isset($data['baz']));
  $this->assertSame($expected_new_data['404'], $data['404']);
  // Verify that the overrides are still working.
  $config = \Drupal::config('config_test.system');
  $this->assertSame($overrides['config_test.system']['foo'], $config->get('foo'));
  $this->assertSame($overrides['config_test.system']['baz'], $config->get('baz'));
  $this->assertSame($overrides['config_test.system']['404'], $config->get('404'));
  // Test overrides of completely new configuration objects. In normal runtime
  // this should only happen for configuration entities as we should not be
  // creating simple configuration objects on the fly.
  $GLOBALS['config']['config_test.new']['key'] = 'override';
  $config = \Drupal::config('config_test.new');
  $this->assertTrue($config->isNew(), 'The configuration object config_test.new is new');
  $this->assertSame('override', $config->get('key'));
  $config_raw = \Drupal::configFactory()->getEditable('config_test.new');
  $this->assertNull($config_raw->get('key'));
  $config_raw->set('key', 'raw')
    ->set('new_key', 'new_value')
    ->save();
  // Ensure override is preserved but all other data has been updated
  // accordingly.
  $config = \Drupal::config('config_test.new');
  $this->assertFalse($config->isNew(), 'The configuration object config_test.new is not new');
  $this->assertSame('override', $config->get('key'));
  $this->assertSame('new_value', $config->get('new_key'));
  $raw_data = $config->getRawData();
  $this->assertSame('raw', $raw_data['key']);
}