},
		numErrs: 1,
	}, {
		name: "empty multi-port port[0] name",
		tweakSvc: func(s *core.Service) {
			s.Spec.Ports[0].Name = ""
			s.Spec.Ports = append(s.Spec.Ports, core.ServicePort{Name: "p", Protocol: "TCP", Port: 12345, TargetPort: intstr.FromInt32(12345)})
		},
		numErrs: 1,
	}, {

Some examples:

(1) For the following input of shape `[1, 2, 2, 1]` and block_size of 2:

```
x = [[[[1], [2]], [[3], [4]]]]
```

The output tensor has shape `[4, 1, 1, 1]` and value:

```
[[[[1]]], [[[2]]], [[[3]]], [[[4]]]]
```

(2) For the following input of shape `[1, 2, 2, 3]` and block_size of 2:

```
x = [[[[1, 2, 3], [4, 5, 6]],