KijiRowData rowData = mReader.get(mEntityId, dataRequest);
String s = rowData.getValue("family", "column", 0L).toString();
assertEquals(s, "Value at timestamp 0.");
// Delete the cell and make sure that this value is missing.
mWriter.deleteCell(mEntityId, "family", "column", 0L);
rowData = mReader.get(mEntityId, dataRequest);
assertFalse(rowData.containsCell("family", "column", 0L));
} finally {
mWriter.close();