hasNoIPOverlapServices := func(fakeT assert.TestingT, service *api.Service) bool {
        assert.NotEqual(fakeT, len(service.Endpoint.VirtualIPs), 0)
        assert.NotEqual(fakeT, len(service.Endpoint.VirtualIPs[0].Addr), 0)
        assignedVIP := service.Endpoint.VirtualIPs[0].Addr
        if assignedIPs[assignedVIP] {