@Test
public void getAuthorizedNamespacesWhenUserHasNoPermissionAssertReturnEmpty()
{

    ApplicationUser applicationUser = new ApplicationUser(getClass());
    applicationUser
        .setNamespaceAuthorizations(new HashSet<>(Arrays.asList(new NamespaceAuthorization("namespace", Arrays.asList(NamespacePermissionEnum.WRITE)))));
    SecurityContextHolder.getContext().setAuthentication(
        new TestingAuthenticationToken(new SecurityUserWrapper("username", "", true, true, true, true, Collections.emptyList(), applicationUser), null));
    Set<String> authorizedNamespaces = namespaceSecurityHelper.getAuthorizedNamespaces(NamespacePermissionEnum.READ);
    assertEquals(0, authorizedNamespaces.size());
}