def test_count_2_sums(self):
data = [20, -17, 1, -2, 5, 100, 200]
interval = [-3, 3]
expected_sums = 2
sums = count_2_sums(data, interval)
self.assertEqual(expected_sums, sums)
def test_count_2_sums_mentor_example_2(self):
data = [-2, 0, 0, 4]
interval = [0, 4]
expected_sums = 2
sums = count_2_sums(data, interval)
self.assertEqual(expected_sums, sums)
def test_count_2_sums_mentor_example_4(self):
data = [1, 2, 3, 4, 5, 6]
interval = [30, 40]
expected_sums = 0
sums = count_2_sums(data, interval)
self.assertEqual(expected_sums, sums)
def test_count_2_sums_mentor_example(self):
data = [-3, -1, 1, 2, 9, 11, 7, 6, 2]
interval = [3, 10]
expected_sums = 8
sums = count_2_sums(data, interval)
self.assertEqual(expected_sums, sums)