def assertAlmostEqual()

in flsim/common/pytest_helper.py [0:0]

• 18 lines of code
• 7 McCabe index (conditional complexity)

def assertAlmostEqual(first, second, places=None, msg=None, delta=None):
    """Assert that ``first`` and ``second`` is almost equal to each other.

    The equality of ``first`` and ``second`` is determined in a similar way to
    the ``assertAlmostEqual`` function of the standard library.
    """
    if delta is not None and places is not None:
        raise TypeError("specify delta or places - not both")

    msg: str = ""
    diff = abs(second - first)
    if delta is not None:
        if diff <= delta:
            return

        msg = (
            f"The difference between {first} and {second} is not within {delta} delta."
        )
    else:
        if places is None:
            places = 7

        if round(diff, places) == 0:
            return

        msg = f"The difference between {first} and {second} is not within {places} decimal places."

    raise AssertionError(msg)