def test_empty_a(self):
a = ""
b = "111"
self.assertEqual(solution.addBinary(a, b), b)
def test_input_1(self):
a = "00000"
b = "11"
self.assertEqual(solution.addBinary(a, b), "00011")
def test_input_2(self):
a = "111"
b = "11"
self.assertEqual(solution.addBinary(a, b), "1010")
def test_empty_b(self):
a = "1101010"
b = ""
self.assertEqual(solution.addBinary(a, b), a)
