#!/usr/bin/env python3

# © Copyright 2021-2022, Scott Gasch

"""Some general exceptions used elsewhere in the package."""

# This module is commonly used by others in here and should avoid
# taking any unnecessary dependencies back on them.


class PreconditionException(AssertionError):
    """Use to indicate function preconditions violated."""

    pass


class PostconditionException(AssertionError):
    """Use to indicate function postconditions violated."""

    pass


class TimeoutError(Exception):
    """Use to indicate an operation that timed out."""

    def __init__(self, value: str = "Timed out"):
        super().__init__()
        self.value = value

    def __str__(self):
        return repr(self.value)