valid    bool
	}{
		{
			name: "nil service",
			instance: &ServiceInstance{
				Endpoint: endpointWithLabels(labels.Instance{}),
			},
		},
		{
			name: "bad label",
			instance: &ServiceInstance{
				Service:  service1,
				Endpoint: endpointWithLabels(labels.Instance{"*": "-"}),
			},
		},
		{
			name: "invalid service",
			instance: &ServiceInstance{
				Service:  &Service{},