@Test
public void authenticatedRequestNoGrants() throws Exception {

  offramp.setAuthorities(singletonMap("AUTHORITY", singleton(PUBLIC)));
  doReturn(true).when(authentication).isAuthenticated();
  doReturn(singletonList(new SimpleGrantedAuthority("AUTHORITY"))).when(authentication).getAuthorities();
  underTest.checkAuthorisation(authentication, ROAD_NAME, emptySet());
  verify(metrics).increment("road1", AUTHENTICATED, AUTHORISED);
}