@Test
public void shouldObtainPublicRouter() throws OpenStackException, IOException {

    // given
    String region = "RegionOne3";
    OpenStackAccess openStackAccess = new OpenStackAccess();
    openStackAccess.setToken("1234567891234567989");
    openStackAccess.setTenantId("08bed031f6c54c9d9b35b42aa06b51c0");
    when(openStackRegion.getTokenAdmin()).thenReturn(openStackAccess);
    when(openOperationUtil.executeNovaRequest(any(HttpUriRequest.class))).thenReturn(ROUTERS);
    // when
    String router = openStackUtil.getPublicRouter(paasManagerUser, region, "080b5f2a-668f-45e0-be23-361c3a7d11d0");
    // then
    assertNotNull(router);
}