def test_emptylist(self):
#Test if the function recives an empty list
self.assertEqual(merge([]),None)
def test_negative(self):
self.assertEqual(merge([-2,-2,-4,-4]),[-4,-8,0,0])
def test_full_list(self):
#test for a full list
self.assertEqual(merge([2,2,2,2]),[4,4,0,0])
def test_not_combine2(self):
self.assertEqual(merge([2,2,4,4]),[4,8,0,0])
def test_zerolist(self):
#Test function to not merge values in
#if lin is not 0:
self.assertEqual(merge([0,0,0,0]),[0,0,0,0])