# Copyright (C) 2015  Red Hat, Inc.
#
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# Red Hat Author(s): Anne Mulhern <amulhern@redhat.com>

""" Test for constants classes. """
import unittest

from bytesize._constants import B
from bytesize._constants import BinaryUnits
from bytesize._constants import DecimalUnits
from bytesize._constants import RoundingMethods
from bytesize._constants import UNITS

class ConstantsTestCase(unittest.TestCase):
    """ Exercise methods of constants classes. """

    def testRoundingObjects(self):
        """ Miscellaneous tests for rounding constants. """
        self.assertIsNotNone(str(RoundingMethods.ROUND_DOWN))

    def testUnitsObjects(self):
        """ Miscellaneous tests for units constants. """
        self.assertIsNotNone(str(DecimalUnits.KB))
        self.assertIsNotNone(DecimalUnits.KB.prefix)

    def testUnitsMethod(self):
        """ Test that all units constansts are in UNITS(). """
        self.assertTrue(set(DecimalUnits.UNITS()).issubset(set(UNITS())))
        self.assertTrue(set(BinaryUnits.UNITS()).issubset(set(UNITS())))
        self.assertTrue(B in UNITS())
