### Question:
DataUpdateRequest extends CRUDRequest { @Override public Operation getOperation() { return Operation.UPDATE; } DataUpdateRequest(String entityName, String entityVersion);  DataUpdateRequest(String entityName); DataUpdateRequest returns(List<? extends Projection> projection); DataUpdateRequest returns(List<? extends Projection> projection, Integer begin, Integer maxResults); DataUpdateRequest ifCurrent(String... documentVersions); DataUpdateRequest returns(Projection... projection); DataUpdateRequest returns(Projection[] projection, Integer begin, Integer maxResults); DataUpdateRequest where(Query queryExpression); DataUpdateRequest updates(List<? extends Update> updates); DataUpdateRequest updates(Update... updates); @Deprecated DataUpdateRequest setQuery(Query query); @Override JsonNode getBodyJson(); @Override Operation getOperation();  }### Answer:
@Test public void testGetOperation() { Assert.assertEquals(Operation.UPDATE, request.getOperation()); }