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tests.py
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tests.py
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import exercises as e
from itertools import islice
import unittest
class GeneratorTests(unittest.TestCase):
# Uloha 1:
def test_square_generator(self):
self.assertNotIsInstance(e.square_generator(range(7)), list)
self.assertEqual(list(e.square_generator(range(7))), [0,1,4,9,16,25,36])
# Uloha 2:
def test_square_map(self):
self.assertNotIsInstance(e.square_map(range(7)), list)
self.assertEqual(list(e.square_map(range(7))), [0,1,4,9,16,25,36])
# Uloha 3:
def test_square_comprehension(self):
self.assertNotIsInstance(e.square_comprehension(range(7)), list)
self.assertEqual(list(e.square_comprehension(range(7))), [0,1,4,9,16,25,36])
# Uloha 4:
def test_cycle(self):
self.assertEqual(list(islice(e.cycle([1,2,3]), 7)), [1,2,3,1,2,3,1])
# Uloha 5:
def test_factorial(self):
self.assertEqual(list(islice(e.factorial(),6)), [1, 2, 6, 24, 120, 720])
# Uloha 6:
def test_digits(self):
self.assertEqual(list(e.digits(123450, 10)), [0, 5, 4, 3, 2, 1])
self.assertEqual(list(e.digits(0, 10)), [0])
self.assertEqual(list(e.digits(8, 2)), [0, 0, 0, 1])
# Uloha 7:
def test_factorial_digit_sum(self):
self.assertEqual(e.factorial_digit_sum(10), 27)
self.assertEqual(e.factorial_digit_sum(101), 639)
# Uloha 8:
def test_my_range(self):
self.assertEqual(list(e.my_range(0,10)), list(range(0, 10)))
self.assertEqual(list(e.my_range(0, 10, 2)), list(range(0, 10, 2)))
self.assertEqual(list(e.my_range(0, 10, 3)), list(range(0, 10, 3)))
# Uloha 9:
def test_my_range_negative(self):
self.assertEqual(list(e.my_range_negative(0,10)), list(range(0, 10)))
self.assertEqual(list(e.my_range_negative(0, 10, 2)), list(range(0, 10, 2)))
self.assertEqual(list(e.my_range_negative(0, 10, 3)), list(range(0, 10, 3)))
self.assertEqual(list(e.my_range_negative(10, 0, -1)), list(range(10, 0, -1)))
self.assertEqual(list(e.my_range_negative(10, 0, -3)), list(range(10, 0, -3)))
# Uloha 10:
def test_items(self):
dictionary = {'a':1, 'b':2, 'c':3, 'd':4}
self.assertEqual(list(e.items(dictionary)), list(dictionary.items()))
# Uloha 11:
def test_pseudorandom(self):
self.assertEqual(list(islice(e.pseudorandom(9, 2, 0, 1), 6)), [2, 4, 8, 7, 5, 1])
# Uloha 12:
def test_sample(self):
self.assertEqual(list(islice(e.sample(['a',1,2,3,4,5,6,7,8,9]), 20)), ['a', 5, 4, 1, 4, 9, 2, 5, 6, 7, 8, 1, 6, 1, 8, 1, 6, 9, 2, 9])
# Uloha 13:
def test_sample_no_rep(self):
items = ['a',1,2,3,4,5,6,7,8,9]
self.assertEqual(list(islice(e.sample_no_rep(items), 9)), ['a', 4, 6, 7, 8, 9, 1, 2, 3])
self.assertEqual(items, ['a',1,2,3,4,5,6,7,8,9])
self.assertEqual(list(islice(e.sample_no_rep(items), 20)), ['a', 4, 6, 7, 8, 9, 1, 2, 3, 5])
# Uloha 14:
def test_primes(self):
self.assertEqual(list(islice(e.primes(), 5)), [2,3,5,7,11])
# Uloha 15:
def test_primes_memory(self):
self.assertEqual(list(islice(e.primes_memory(), 5)), [2,3,5,7,11])
# Uloha 16:
def test_nth_prime(self):
self.assertEqual(e.nth_prime(1), 2)
self.assertEqual(e.nth_prime(100), 541)
# Uloha 17:
def test_pairs(self):
self.assertEqual(list(e.pairs([1, 2, 3, 4], ['a', 'b', 'c', 'd'])), [(1, 'a'), (2, 'b'), (3, 'c'), (4, 'd')])
# Uloha 18:
def test_groups(self):
self.assertEqual(list(e.groups([1, 2, 3, 4], ['a', 'b', 'c', 'd'], 'xyz')), [(1, 'a', 'x'), (2, 'b', 'y'), (3, 'c', 'z')])
# Uloha 19:
def test_trange(self):
self.assertEqual(list(e.trange((10, 10, 10), (13, 50, 15), (0, 15, 12))),
[(10, 10, 10),
(10, 25, 22),
(10, 40, 34),
(10, 55, 46),
(11, 10, 58),
(11, 26, 10),
(11, 41, 22),
(11, 56, 34),
(12, 11, 46),
(12, 26, 58),
(12, 42, 10),
(12, 57, 22),
(13, 12, 34),
(13, 27, 46),
(13, 42, 58)])
# Uloha 20:
def test_k_permutations(self):
self.assertEqual(list(e.k_permutations(['a', 'b', 'c', 'd'], 3)),
[['a', 'b', 'c'],
['a', 'b', 'd'],
['a', 'c', 'b'],
['a', 'c', 'd'],
['a', 'd', 'b'],
['a', 'd', 'c'],
['b', 'a', 'c'],
['b', 'a', 'd'],
['b', 'c', 'a'],
['b', 'c', 'd'],
['b', 'd', 'a'],
['b', 'd', 'c'],
['c', 'a', 'b'],
['c', 'a', 'd'],
['c', 'b', 'a'],
['c', 'b', 'd'],
['c', 'd', 'a'],
['c', 'd', 'b'],
['d', 'a', 'b'],
['d', 'a', 'c'],
['d', 'b', 'a'],
['d', 'b', 'c'],
['d', 'c', 'a'],
['d', 'c', 'b']])
if __name__ == '__main__':
unittest.main()