void () { UnindexedFilesScanner t1 = createScanningTask(iter1, "reason 1", ScanningType.PARTIAL); UnindexedFilesScanner full = createScanningTask(null, "full", ScanningType.FULL); assertNull(t1.tryMergeWith(full).getPredefinedIndexableFilesIterators()); assertNull(full.tryMergeWith(t1).getPredefinedIndexableFilesIterators()); }