def testRounding(self, i):
""" Rounding various values according to various methods. """
f = Fraction(i, 10)
self.assertEqual(round_fraction(f, RoundingMethods.ROUND_DOWN), 0)
self.assertEqual(round_fraction(f, RoundingMethods.ROUND_UP), 1)
r = round_fraction(f, RoundingMethods.ROUND_HALF_UP)
if i < 5:
self.assertEqual(r, 0)
else:
self.assertEqual(r, 1)
r = round_fraction(f, RoundingMethods.ROUND_HALF_DOWN)
if i > 5:
self.assertEqual(r, 1)
else:
self.assertEqual(r, 0)
def testExceptions(self):
""" Raises exception on bad input. """
with self.assertRaises(SizeValueError):
round_fraction(Fraction(13, 32), "a string")
with self.assertRaises(SizeValueError):
round_fraction(Fraction(16, 32), "a string")