public function test_populate_options( $options, $expected ) {
    global $wpdb;

    $orig_options  = $wpdb->options;
    $wpdb->options = self::$options;

    populate_options( $options );

    wp_cache_delete( 'alloptions', 'options' );

    $results = array();
    foreach ( $expected as $option => $value ) {
      $results[ $option ] = get_option( $option );
    }

    $wpdb->query( "TRUNCATE TABLE {$wpdb->options}" );

    $wpdb->options = $orig_options;

    $this->assertSame( $expected, $results );
  }