s.close();
Assert.assertEquals(120, rowCnt);
// test null start
// will remove 0-1, 10-19, 2
to.deleteRows("test2", null, new Text("2"));
s = connector.createScanner("test2", Authorizations.EMPTY);
rowCnt = 0;
for (Entry<Key,Value> entry : s) {
char rowStart = entry.getKey().getRow().toString().charAt(0);
Assert.assertTrue(rowStart >= '2');