### Question:
DataTypeManagerStackStore { public void put(final String uuid, final List<String> types) { typeStack.put(uuid, types); }  List<String> get(final String uuid); void put(final String uuid,
                    final List<String> types); void clear();  }### Answer:
@Test public void testPut() { final String uuid = "456"; final List<String> expectedTypes = asList("tCompany", "tPerson"); typeStack.put(uuid, expectedTypes); final List<String> actualTypes = typeStack.get(uuid); assertEquals(expectedTypes, actualTypes); }