def test_with_several_elements(self):
self.assertEqual([-7, -1, 0, 3, 5, 9, 9],
solve([5, -7, 3, 0, 9, -1, 9]))
self.assertEqual([1, 2, 3, 5, 6, 7, 7, 13],
solve([7, 2, 5, 3, 7, 13, 1, 6]))
self.assertEqual([17, 20, 26, 31, 44, 54, 55, 77, 93],
solve([54, 26, 93, 17, 77, 31, 44, 55, 20]))
def test_with_empty_data(self):
self.assertEqual([], solve([]))
def test_with_two_elements(self):
self.assertEqual([1, 2], solve([1, 2]))
self.assertEqual([1, 2], solve([2, 1]))
self.assertEqual([3, 3], solve([3, 3]))
def test_with_three_elements(self):
self.assertEqual([1, 2, 3], solve([1, 2, 3]))
self.assertEqual([1, 2, 3], solve([2, 1, 3]))
self.assertEqual([3, 3, 3], solve([3, 3, 3]))
def test_with_one_element(self):
self.assertEqual([3], solve([3]))