def test_returns_zeros_at_end(self):
"""
Tests that all zeros in list have been moved to the end
"""
l = [4, 0, 9, 0, 1, 4, 0, False, None, 0, True, 0]
result = moveZeros(l)
self.assertEqual(result,
[4, 9, 1, 4, False, None, True, 0, 0, 0, 0, 0])
def test_return_for_wrong_argument(self):
"""
Tests that None is returned if the array argument is wrong
"""
result = moveZeros("test")
self.assertEqual(result, None)
def test_return_none_for_no_argument(self):
"""
Tests that None is returned if no argument is passed in
"""
result = moveZeros()
self.assertEqual(result, None)