def testExceptions(self):
""" Test throwing exception. """
with self.assertRaises(BasesError):
Nats.convert_from_int(-32, 2)
with self.assertRaises(BasesError):
Nats.convert_from_int(32, -2)
with self.assertRaises(BasesError):
Nats.convert([1], 1, 2)
with self.assertRaises(BasesError):
Nats.convert([1], 2, 1)
with self.assertRaises(BasesError):
Nats.convert_to_int([1], 1)
with self.assertRaises(BasesError):
Nats.convert_to_int([-1], 2)
with self.assertRaises(BasesError):
Nats.carry_in([-1], 1, 2)
with self.assertRaises(BasesError):
Nats.carry_in([1], -1, 2)
with self.assertRaises(BasesError):
Nats.carry_in([1], 1, 1)
with self.assertRaises(BasesError):
Nats.roundTo([1], 0, 2, RoundingMethods.ROUND_DOWN)
with self.assertRaises(BasesError):
Nats.roundTo([3], 2, 2, RoundingMethods.ROUND_DOWN)
with self.assertRaises(BasesError):
Nats.roundTo([1], 2, 2, None)
def test_from_other(self, nat, to_base):
"""Test roundtrip from number in arbitrary base."""
(subject, from_base) = nat
result = Nats.convert(subject, from_base, to_base)
self.assertEqual(
Nats.convert_to_int(result, to_base),
Nats.convert_to_int(subject, from_base),
)
def test_exceptions(self):
"""Test throwing exception."""
with self.assertRaises(BasesError):
Nats.convert_from_int(-32, 2)
with self.assertRaises(BasesError):
Nats.convert_from_int(32, -2)
with self.assertRaises(BasesError):
Nats.convert([1], 1, 2)
with self.assertRaises(BasesError):
Nats.convert([1], 2, 1)
with self.assertRaises(BasesError):
Nats.convert_to_int([1], 1)
with self.assertRaises(BasesError):
Nats.convert_to_int([-1], 2)
with self.assertRaises(BasesError):
Nats.carry_in([-1], 1, 2)
with self.assertRaises(BasesError):
Nats.carry_in([1], -1, 2)
with self.assertRaises(BasesError):
Nats.carry_in([1], 1, 1)
def testFromOther(self, nat, to_base):
""" Test roundtrip from number in arbitrary base. """
(subject, from_base) = nat
result = Nats.convert(subject, from_base, to_base)
assert Nats.convert_to_int(result, to_base) == \
Nats.convert_to_int(subject, from_base)