### Question:
SlotStateSerDes { protected static UpdateStamp.State stateFromCode(String stateCode) { if (stateCode.equals(UpdateStamp.State.Rolled.code())) { return UpdateStamp.State.Rolled; } else { return UpdateStamp.State.Active; } }  static SlotState deserialize(String stateStr); String serialize(SlotState state); String serialize(Granularity gran, int slot, UpdateStamp.State state);  }### Answer:
@Test public void testStateFromStateCode() { Assert.assertEquals(UpdateStamp.State.Active, serDes.stateFromCode("foo")); Assert.assertEquals(UpdateStamp.State.Active, serDes.stateFromCode("A")); Assert.assertEquals(UpdateStamp.State.Rolled, serDes.stateFromCode("X")); }