def test_equals(self):
     self.assertEqual(compound_array([1, 2, 3, 4, 5, 6], [9, 8, 7, 6]),
                      [1, 9, 2, 8, 3, 7, 4, 6, 5, 6])
 def test_equals(self):
     self.assertEqual(compound_array([1, 2, 3, 4, 5, 6], [9, 8, 7, 6]),
                      [1, 9, 2, 8, 3, 7, 4, 6, 5, 6])
 def test_equals_2(self):
     self.assertEqual(
         compound_array([0, 1, 2], [9, 8, 7, 6, 5, 4, 3, 2, 1, 0]),
         [0, 9, 1, 8, 2, 7, 6, 5, 4, 3, 2, 1, 0])
 def test_equals_2(self):
     self.assertEqual(compound_array(
         [0, 1, 2], [9, 8, 7, 6, 5, 4, 3, 2, 1, 0]
     ), [0, 9, 1, 8, 2, 7, 6, 5, 4, 3, 2, 1, 0])