class ConfigCRUDTest

class ConfigCRUDTest extends DrupalUnitTestBase {
  public static function getInfo() {
    return array(
      'name' => 'CRUD operations',
      'description' => 'Tests CRUD operations on configuration objects.',
      'group' => 'Configuration',
    );
  }

  /**
   * Tests CRUD operations.
   */
  function testCRUD() {
    $storage = $this->container
      ->get('config.storage');
    $name = 'config_test.crud';
    $config = config($name);
    $this
      ->assertIdentical($config
      ->isNew(), TRUE);

    // Create a new configuration object.
    $config
      ->set('value', 'initial');
    $config
      ->save();
    $this
      ->assertIdentical($config
      ->isNew(), FALSE);

    // Verify the active configuration contains the saved value.
    $actual_data = $storage
      ->read($name);
    $this
      ->assertIdentical($actual_data, array(
      'value' => 'initial',
    ));

    // Update the configuration object instance.
    $config
      ->set('value', 'instance-update');
    $config
      ->save();
    $this
      ->assertIdentical($config
      ->isNew(), FALSE);

    // Verify the active configuration contains the updated value.
    $actual_data = $storage
      ->read($name);
    $this
      ->assertIdentical($actual_data, array(
      'value' => 'instance-update',
    ));

    // Verify a call to config() immediately returns the updated value.
    $new_config = config($name);
    $this
      ->assertIdentical($new_config
      ->get(), $config
      ->get());
    $this
      ->assertIdentical($config
      ->isNew(), FALSE);

    // Delete the configuration object.
    $config
      ->delete();

    // Verify the configuration object is empty.
    $this
      ->assertIdentical($config
      ->get(), array());
    $this
      ->assertIdentical($config
      ->isNew(), TRUE);

    // Verify the active configuration contains no value.
    $actual_data = $storage
      ->read($name);
    $this
      ->assertIdentical($actual_data, FALSE);

    // Verify config() returns no data.
    $new_config = config($name);
    $this
      ->assertIdentical($new_config
      ->get(), $config
      ->get());
    $this
      ->assertIdentical($config
      ->isNew(), TRUE);

    // Re-create the configuration object.
    $config
      ->set('value', 're-created');
    $config
      ->save();
    $this
      ->assertIdentical($config
      ->isNew(), FALSE);

    // Verify the active configuration contains the updated value.
    $actual_data = $storage
      ->read($name);
    $this
      ->assertIdentical($actual_data, array(
      'value' => 're-created',
    ));

    // Verify a call to config() immediately returns the updated value.
    $new_config = config($name);
    $this
      ->assertIdentical($new_config
      ->get(), $config
      ->get());
    $this
      ->assertIdentical($config
      ->isNew(), FALSE);

    // Rename the configuration object.
    $new_name = 'config_test.crud_rename';
    $config
      ->rename($new_name);
    $renamed_config = config($new_name);
    $this
      ->assertIdentical($renamed_config
      ->get(), $config
      ->get());
    $this
      ->assertIdentical($renamed_config
      ->isNew(), FALSE);

    // Merge data into the configuration object.
    $new_config = config($new_name);
    $expected_values = array(
      'value' => 'herp',
      '404' => 'derp',
    );
    $new_config
      ->merge($expected_values);
    $new_config
      ->save();
    $this
      ->assertIdentical($new_config
      ->get('value'), $expected_values['value']);
    $this
      ->assertIdentical($new_config
      ->get('404'), $expected_values['404']);
  }

}