/** For testing only. */
Source withMockEstimateSizeBytes(Long estimateSizeBytes) {
Source res = new Source(host, datasetId, query, namespace);
res.mockSplitter = mockSplitter;
res.mockEstimateSizeBytes = estimateSizeBytes;
return res;
}
/** For testing only. */
Source withMockSplitter(QuerySplitter splitter) {
Source res = new Source(host, datasetId, query, namespace);
res.mockSplitter = splitter;
res.mockEstimateSizeBytes = mockEstimateSizeBytes;
return res;
}