def test_int(self):
''' Int. '''
self.assertTupleEqual(util.closest_factor(24, 5), (4, 6))
self.assertTupleEqual(util.closest_factor(24, 10), (8, 12))
self.assertTupleEqual(util.closest_factor(25, 3), (1, 5))
self.assertTupleEqual(util.closest_factor(25, 20), (5, 25))
def test_missing(self):
''' Missing one or both. '''
fs = util.closest_factor(4, 5)
self.assertTupleEqual(fs, (4, ))
fs = util.closest_factor(4, 0.2)
self.assertTupleEqual(fs, (1, ))
def test_negative(self):
''' Negative. '''
with self.assertRaisesRegexp(ValueError, '.*negative.*'):
_ = util.closest_factor(24, -5)
with self.assertRaisesRegexp(ValueError, '.*negative.*'):
_ = util.closest_factor(-24, -5)
with self.assertRaisesRegexp(ValueError, '.*negative.*'):
_ = util.closest_factor(-24, 5)
def test_random(self):
''' Random test. '''
for val in range(1, 11):
for f in range(1, 11):
fs = util.closest_factor(val, f)
string = 'closest_factor: {} {} {}'.format(val, f, fs)
if len(fs) == 2:
self.assertEqual(val % fs[0], 0, string)
self.assertGreaterEqual(f, fs[0], string)
self.assertEqual(val % fs[1], 0, string)
self.assertLessEqual(f, fs[1], string)
elif len(fs) == 1:
self.assertEqual(val % fs[0], 0, string)
def test_zero(self):
''' Zero. '''
self.assertTupleEqual(util.closest_factor(0, 3), (3, ))
self.assertTupleEqual(util.closest_factor(24, 0), (1, ))
def test_factor_float(self):
''' Factor is float. '''
self.assertTupleEqual(util.closest_factor(24, 5.3), (4, 6))
self.assertTupleEqual(util.closest_factor(24, 10.2), (8, 12))
def test_value_float(self):
''' Value is float. '''
with self.assertRaisesRegexp(TypeError, '.*integers.*'):
_ = util.closest_factor(24.3, 5)
with self.assertRaisesRegexp(TypeError, '.*integers.*'):
_ = util.closest_factor(24., 10)
def test_exact(self):
''' Exact factor. '''
self.assertTupleEqual(util.closest_factor(24, 6), (6, 6))
self.assertTupleEqual(util.closest_factor(24, 2), (2, 2))
self.assertTupleEqual(util.closest_factor(3, 1), (1, 1))