def testNormalCase(self):
test_input = [1, 2, 3, 4, 5, 6, 7, 8]
result = mod.four_sum(test_input, 20)
self.assertEqual(sorted(result), [2, 3, 7, 8])
def testAllDuplicates(self):
test_input = [2, 2, 2, 2, 2]
result = mod.four_sum(test_input, 8)
self.assertIsNone(result)
def testAllDuplicates(self):
test_input = [2, 2, 2, 2, 2]
result = mod.four_sum(test_input, 8)
self.assertIsNone(result)
def testNormalCase(self):
test_input = [1, 2, 3, 4, 5, 6, 7, 8]
result = mod.four_sum(test_input, 20)
self.assertEqual(sorted(result), [2, 3, 7, 8])
