## test_epoch()


Run one evaluation pass and return true and predicted labels.


Usage

``` python
test_epoch(
    model,
    validation_loader,
    device,
)
```


## Parameters


`model: nn.Module`  
Network model (must already be on `device`).

`validation_loader: DataLoader[tuple[torch.Tensor, torch.Tensor]]`  
DataLoader yielding (images, labels) batches.

`device: torch.device`  
Device to run inference on.


## Returns


`tuple[torch.Tensor, torch.Tensor]`  
Tuple of (y_true, y_pred) as 1-D CPU tensors.