def test_permutations_float(self):
"""permutations should use gamma function when floats as input"""
self.assertFloatEqual(permutations(1.0,1), 1)
self.assertFloatEqual(permutations(2,1.0), 2)
self.assertFloatEqual(permutations(3.0,1.0), 3)
self.assertFloatEqual(permutations(4.0,1), 4)
self.assertFloatEqual(permutations(4.0,2.0), 12)
self.assertFloatEqual(permutations(4.0,3.0), 24)
self.assertFloatEqual(permutations(4,4.0), 24)
self.assertFloatEqual(permutations(300, 100), 3.8807387193009318e+239)
def test_permutations(self):
"""permutations should return expected results"""
self.assertEqual(permutations(1,1), 1)
self.assertEqual(permutations(2,1), 2)
self.assertEqual(permutations(3,1), 3)
self.assertEqual(permutations(4,1), 4)
self.assertEqual(permutations(4,2), 12)
self.assertEqual(permutations(4,3), 24)
self.assertEqual(permutations(4,4), 24)
self.assertFloatEqual(permutations(300, 100), 3.8807387193009318e+239)
def test_permutations_float(self):
"""permutations should use gamma function when floats as input"""
self.assertFloatEqual(permutations(1.0, 1), 1)
self.assertFloatEqual(permutations(2, 1.0), 2)
self.assertFloatEqual(permutations(3.0, 1.0), 3)
self.assertFloatEqual(permutations(4.0, 1), 4)
self.assertFloatEqual(permutations(4.0, 2.0), 12)
self.assertFloatEqual(permutations(4.0, 3.0), 24)
self.assertFloatEqual(permutations(4, 4.0), 24)
self.assertFloatEqual(permutations(300, 100), 3.8807387193009318e+239)
def test_permutations(self):
"""permutations should return expected results"""
self.assertEqual(permutations(1, 1), 1)
self.assertEqual(permutations(2, 1), 2)
self.assertEqual(permutations(3, 1), 3)
self.assertEqual(permutations(4, 1), 4)
self.assertEqual(permutations(4, 2), 12)
self.assertEqual(permutations(4, 3), 24)
self.assertEqual(permutations(4, 4), 24)
self.assertFloatEqual(permutations(300, 100), 3.8807387193009318e+239)
def test_permutations_range(self):
"""permutations should increase gradually with increasing k"""
start = 5 #permuations(10,5) = 30240
end = 6 #permutations(10,6) = 151200
step = 0.1
lower_lim = 30240
upper_lim = 151200
previous_value = 30239.9999
while start <= end:
obs = permutations(10,start)
assert lower_lim <= obs <= upper_lim
assert obs > previous_value
previous_value = obs
start += step
def test_permutations_range(self):
"""permutations should increase gradually with increasing k"""
start = 5 #permuations(10,5) = 30240
end = 6 #permutations(10,6) = 151200
step = 0.1
lower_lim = 30240
upper_lim = 151200
previous_value = 30239.9999
while start <= end:
obs = permutations(10, start)
assert lower_lim <= obs <= upper_lim
assert obs > previous_value
previous_value = obs
start += step
