def use_home_fixture(name)
      path = File.join spec_root, 'home_fixtures', name.to_s
      copy_fixture path, active_home_fixture_dir
      nil
    end
def use_home_fixture(name)
      path = File.join spec_root, 'home_fixtures', name.to_s
      copy_fixture path, active_home_fixture_dir
      nil
    end
The next cog spec will execute in a fresh copy of the given home fixture
 Home fixture directories are stored in <tt>spec/home_fixtures</tt>
 @param name [String] name of the home fixture
 @return [nil]