def test__int_1__returns_1(self): assert divide_by_2(1) == "1"
def test__int_0__returns_0(self): assert divide_by_2(0) == "0"
def test__int_3__returns_11(self): assert divide_by_2(3) == "11"
def test__int_20__returns_10100(self): assert divide_by_2(20) == "10100"
def test__int_2__returns_10(self): assert divide_by_2(2) == "10"