request.setVersionCorrection(VC);
ExchangeSearchResult result = new ExchangeSearchResult();
result.getDocuments().add(new ExchangeDocument(example()));
when(mock.search(request)).thenReturn(result);
MasterExchangeSource test = new MasterExchangeSource(mock, VC);
Exchange testResult = test.getSingle(BUNDLE);
verify(mock, times(1)).search(request);
assertEquals(example(), testResult);