@Test
  public void testFilterList() throws IOException {

    // Test getting a single row, single key using Row, Qualifier, and Value
    // regular expression and substring filters
    // Use must pass all
    List<Filter> filters = new ArrayList<>();
    filters.add(new RowFilter(CompareOperator.EQUAL, new RegexStringComparator(".+-2")));
    filters.add(new QualifierFilter(CompareOperator.EQUAL, new RegexStringComparator(".+-2")));
    filters.add(new ValueFilter(CompareOperator.EQUAL, new SubstringComparator("One")));
    Filter f = new FilterList(Operator.MUST_PASS_ALL, filters);
    Scan s = new Scan();
    s.addFamily(FAMILIES[0]);
    s.setFilter(f);
    KeyValue[] kvs = { new KeyValue(ROWS_ONE[2], FAMILIES[0], QUALIFIERS_ONE[2], VALUES[0]) };
    verifyScanFull(s, kvs);

    // Test getting everything with a MUST_PASS_ONE filter including row, qf, val
    // regular expression and substring filters
    filters.clear();
    filters.add(new RowFilter(CompareOperator.EQUAL, new RegexStringComparator(".+Two.+")));
    filters.add(new QualifierFilter(CompareOperator.EQUAL, new RegexStringComparator(".+-2")));
    filters.add(new ValueFilter(CompareOperator.EQUAL, new SubstringComparator("One")));
    f = new FilterList(Operator.MUST_PASS_ONE, filters);
    s = new Scan();
    s.setFilter(f);
    verifyScanNoEarlyOut(s, this.numRows, this.colsPerRow);

  }
Tests the the {@link WhileMatchFilter} works in combination with a {@link Filter} that uses the
{@link Filter#filterCell(Cell)} method. See HBASE-2258.
hbase-server/src/test/java/org/apache/hadoop/hbase/filter/TestFilter.java