public function ConfigSnapshotTest::testSnapshot in Drupal 9

Same name and namespace in other branches

1. 8 core/tests/Drupal/KernelTests/Core/Config/ConfigSnapshotTest.php \Drupal\KernelTests\Core\Config\ConfigSnapshotTest::testSnapshot()

Tests config snapshot creation and updating.

File

core/tests/Drupal/KernelTests/Core/Config/ConfigSnapshotTest.php, line 37

Class

ConfigSnapshotTest

Tests config snapshot creation and updating.

Namespace

Drupal\KernelTests\Core\Config

Code

public function testSnapshot() {
  $active = $this->container
    ->get('config.storage');
  $sync = $this->container
    ->get('config.storage.sync');
  $snapshot = $this->container
    ->get('config.storage.snapshot');
  $config_name = 'config_test.system';
  $config_key = 'foo';
  $new_data = 'foobar';
  $active_snapshot_comparer = new StorageComparer($active, $snapshot);
  $sync_snapshot_comparer = new StorageComparer($sync, $snapshot);

  // Verify that we have an initial snapshot that matches the active
  // configuration. This has to be true as no config should be installed.
  $this
    ->assertFalse($active_snapshot_comparer
    ->createChangelist()
    ->hasChanges());

  // Install the default config.
  $this
    ->installConfig([
    'config_test',
  ]);

  // Although we have imported config this has not affected the snapshot.
  $this
    ->assertTrue($active_snapshot_comparer
    ->reset()
    ->hasChanges());

  // Update the config snapshot.
  \Drupal::service('config.manager')
    ->createSnapshot($active, $snapshot);

  // The snapshot and active config should now contain the same config
  // objects.
  $this
    ->assertFalse($active_snapshot_comparer
    ->reset()
    ->hasChanges());

  // Change a configuration value in sync.
  $sync_data = $this
    ->config($config_name)
    ->get();
  $sync_data[$config_key] = $new_data;
  $sync
    ->write($config_name, $sync_data);

  // Verify that active and snapshot match, and that sync doesn't match
  // active.
  $this
    ->assertFalse($active_snapshot_comparer
    ->reset()
    ->hasChanges());
  $this
    ->assertTrue($sync_snapshot_comparer
    ->createChangelist()
    ->hasChanges());

  // Import changed data from sync to active.
  $this
    ->configImporter()
    ->import();

  // Verify changed config was properly imported.
  \Drupal::configFactory()
    ->reset($config_name);
  $this
    ->assertSame($new_data, $this
    ->config($config_name)
    ->get($config_key));

  // Verify that a new snapshot was created which and that it matches
  // the active config.
  $this
    ->assertFalse($active_snapshot_comparer
    ->reset()
    ->hasChanges());
}