def test_counter_from_time_period_wrong_type(self):
"""Test Otp.counter_from_time().
Check that providing a period that is not numeric or convertable
to numeric raises the appropriate exception.
"""
cut = HOTP()
with self.assertRaises(TypeError):
cut.counter_from_time(period=(6, 3))
def test_counter_from_time_period_wrong_type(self):
"""Test Otp.counter_from_time().
Check that providing a period that is not numeric or convertable
to numeric raises the appropriate exception.
"""
cut = HOTP()
with self.assertRaises(TypeError):
cut.counter_from_time(period=(6, 3))
def test_counter_from_time_bad_period(self):
"""Test Otp.counter_from_time().
Check that providing a bad period raises the appropriate exception.
"""
cut = HOTP()
with self.assertRaises(ValueError):
cut.counter_from_time(period=-10)
with self.assertRaises(ValueError):
cut.counter_from_time(period="ABC")
with self.assertRaises(ValueError):
cut.counter_from_time(period=-10)
with self.assertRaises(TypeError):
cut.counter_from_time(period=(6, 3))
def test_counter_from_time_bad_period(self):
"""Test Otp.counter_from_time().
Check that providing a bad period raises the appropriate exception.
"""
cut = HOTP()
with self.assertRaises(ValueError):
cut.counter_from_time(period=-10)
with self.assertRaises(ValueError):
cut.counter_from_time(period="ABC")
with self.assertRaises(ValueError):
cut.counter_from_time(period=-10)
with self.assertRaises(TypeError):
cut.counter_from_time(period=(6, 3))
def test_counter_from_time(self):
"""Test Otp.counter_from_time().
Check that the generated counter and remaining seconds make sense
for the given period.
"""
cut = HOTP()
counter, remaining_seconds30 = cut.counter_from_time()
counter30 = int.from_bytes(counter, byteorder='big', signed=False)
counter, remaining_seconds60 = cut.counter_from_time(60)
counter60 = int.from_bytes(counter, byteorder='big', signed=False)
# Check that remaining seconds are within [0,period)
self.assertGreater(30, remaining_seconds30)
self.assertLessEqual(0, remaining_seconds30)
# Check that remaining seconds are within [0,period)
self.assertGreater(60, remaining_seconds60)
self.assertLessEqual(0, remaining_seconds60)
# Check that counter with period 60 is just about 1/2 of counter
# with period 30
#
self.assertLessEqual(counter60 * 2, counter30)
self.assertGreater(counter60 * 2 + 2, counter30)
def test_counter_from_time(self):
"""Test Otp.counter_from_time().
Check that the generated counter and remaining seconds make sense
for the given period.
"""
cut = HOTP()
counter, remaining_seconds30 = cut.counter_from_time()
counter30 = int.from_bytes(counter, byteorder='big', signed=False)
counter, remaining_seconds60 = cut.counter_from_time(60)
counter60 = int.from_bytes(counter, byteorder='big', signed=False)
# Check that remaining seconds are within [0,period)
self.assertGreater(30, remaining_seconds30)
self.assertLessEqual(0, remaining_seconds30)
# Check that remaining seconds are within [0,period)
self.assertGreater(60, remaining_seconds60)
self.assertLessEqual(0, remaining_seconds60)
# Check that counter with period 60 is just about 1/2 of counter
# with period 30
#
self.assertLessEqual(counter60 * 2, counter30)
self.assertGreater(counter60 * 2 + 2, counter30)
