def METHOD_NAME() -> None:
    """Test evaluate function."""
    # Prepare
    strategy = FaultTolerantFedAvg(min_completion_rate_evaluate=0.1)
    results: List[Tuple[ClientProxy, EvaluateRes]] = []
    failures: List[Union[Tuple[ClientProxy, EvaluateRes], BaseException]] = []
    expected: Optional[float] = None
    # Execute
    actual, _ = strategy.aggregate_evaluate(1, results, failures)
    # Assert
    assert actual == expected