# Epoch processing tests

The different epoch sub-transitions are tested individually with test handlers.
The format is similar to block-processing state-transition tests.
There is no "change" factor however, the transitions are pure functions with just the pre-state as input.
Hence, the format is shared between each test-handler. (See test condition documentation on how to run the tests.)

## Test case format

```yaml
description: string    -- description of test case, purely for debugging purposes
bls_setting: int       -- see general test-format spec.
pre: BeaconState       -- state before running the sub-transition
post: BeaconState      -- state after applying the epoch sub-transition.
```

## Condition

A handler of the `epoch_processing` test-runner should process these cases, 
 calling the corresponding processing implementation.

Sub-transitions:

| *`sub-transition-name`* | *`processing call`*               |
|-------------------------|-----------------------------------|
| `crosslinks`            | `process_crosslinks(state)`       |
| `registry_updates`      | `process_registry_updates(state)` |

The resulting state should match the expected `post` state.