def test_add_perm_adds_the_ordered_combination(self):
num_perm = coin_sum.number_permutations()
num_perm.permutations = []
num_perm.current_perm = [2,1]
num_perm.add_perm()
actual = num_perm.permutation
self.assertEqual([[1,2]], actual)
def test_max_number_makes_biggest_numbers(self):
num_perm = coin_sum.number_permutations()
num_perm.only_numbers = [1,2,3,4,5,6]
num_perm.current_num = 6
num_perm.max_number()
actual = num_perm.max_number()
self.assertEqual([1,1,1,1,1,1], actual)
def test_add_perm_does_not_add_repeated_combinations(self):
num_perm = coin_sum.number_permutations()
num_perm.permutation = [[1,2],[1,3]]
num_perm.current_perm = [2,1]
num_perm.add_perm()
actual = num_perm.permutation
self.assertEqual([[1,2],[1,3]], actual)
def test_make_number_makes_an_array_with_the_correct_elements_in(self):
num_perm = coin_sum.number_permutations()
num_perm.only_numbers = [1,2,3,4,5,6]
num_perm.current_num = 6
num_perm.make_number()
actual = num_perm.current_perm
self.assertEqual([1,1,1,1,1,1], actual)
def test_next_numbers_finds_the_correct_next_number_with_a_short_carry(self):
num_perm = coin_sum.number_permutations()
num_perm.current_perm = [3,2,4,6]
num_perm.only_numbers = [1,2,3,4,5,6]
num_perm.next_number()
actual = num_perm.current_perm
self.assertEqual([3,2,5,1], actual)
def test_inc_combine_does_not_include_last_number_when_not_in_array(self):
num_perm = coin_sum.number_permutations()
num_perm.only_numbers = [0,1,2,5,10,20,50,100,200]
test_data = [[0, 2], [1, 1]]
actual = num_perm.inc_combine(test_data,test_data)
expected = [[0, 0, 2, 2], [0, 1, 1, 2], [1, 1, 1, 1]]
self.assertEqual(expected, actual)
def test_perm_numbers_calculates_correct_permutations(self):
num_perm = coin_sum.number_permutations()
num_perm.only_numbers = [0,1,2,3,4]
num_perm.perm_number(4)
actual = num_perm.permutation
expected = []
expected.append([0, 0, 0, 4])
expected.append([0, 0, 1, 3])
expected.append([0, 0, 2, 2])
expected.append([0, 1, 1, 2])
expected.append([1, 1, 1, 1])
self.assertEqual(expected, actual)
def test_perm_number_calculates_the_correct_number_of_combinations(self):
num_perm = coin_sum.number_permutations()
num_perm.only_numbers = [0,1,2,3,4]
num_perm.perm_number(4)
actual = num_perm.count_perms
self.assertEqual(5, actual)
def test_add_perm_does_not_change_current_perm(self):
num_perm = coin_sum.number_permutations()
num_perm.current_perm = [2,1]
num_perm.add_perm()
self.assertEqual([2,1], num_perm.current_perm)
def test_check_num_calculates_false_when_sum_of_elements_is_not_correct_number(self):
num_perm = coin_sum.number_permutations()
num_perm.current_num = 6
num_perm.current_perm = [0,0,1,2,2]
self.assertFalse(num_perm.check_num())
def test_inc_combine_includes_last_number(self):
num_perm = coin_sum.number_permutations()
num_perm.only_numbers = [0,1,2,5,10,20,50,100,200]
actual = num_perm.inc_combine([[1]],[[1]])
expected = [[1,1],[0,2]]
self.assertEqual(expected, actual)