public function test_register_with_default_override() {
    register_setting(
      'test_group',
      'test_default',
      array(
        'default' => 'Got that Viper with them rally stripes',
      )
    );

    // This set of tests/references (and a previous version) are in support of Viper007Bond.
    // His Viper doesn't have rally stripes, but for the sake of the Big Tymers, we'll go with it.
    $this->assertSame( 'We the #1 Stunnas', get_option( 'test_default', 'We the #1 Stunnas' ) );
  }