def test_loop_input_other_number(self):
     self.assertEqual(loop_input('5'), -1)
 def test_loop_input_string(self):
     self.assertEqual(loop_input('sdas'), -1)
 def test_loop_input_empty(self):
     self.assertEqual(loop_input(''), -1)
 def test_loop_input_null(self):
     self.assertEqual(loop_input(None), -1)
 def test_loop_input_true(self):
     self.assertEqual(loop_input(1), 1)