001/**
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *     http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018package org.apache.hadoop.hbase.regionserver;
019
020import java.io.IOException;
021import junit.framework.TestCase;
022import org.apache.hadoop.hbase.Cell;
023import org.apache.hadoop.hbase.CellComparator;
024import org.apache.hadoop.hbase.HBaseClassTestRule;
025import org.apache.hadoop.hbase.KeyValue;
026import org.apache.hadoop.hbase.KeyValueTestUtil;
027import org.apache.hadoop.hbase.KeyValueUtil;
028import org.apache.hadoop.hbase.testclassification.RegionServerTests;
029import org.apache.hadoop.hbase.testclassification.SmallTests;
030import org.apache.hadoop.hbase.util.Bytes;
031import org.junit.ClassRule;
032import org.junit.experimental.categories.Category;
033
034@Category({RegionServerTests.class, SmallTests.class})
035public class TestKeyValueScanFixture extends TestCase {
036
037  @ClassRule
038  public static final HBaseClassTestRule CLASS_RULE =
039      HBaseClassTestRule.forClass(TestKeyValueScanFixture.class);
040
041
042  public void testKeyValueScanFixture() throws IOException {
043    KeyValue kvs[] = new KeyValue[]{
044        KeyValueTestUtil.create("RowA", "family", "qf1",
045            1, KeyValue.Type.Put, "value-1"),
046        KeyValueTestUtil.create("RowA", "family", "qf2",
047            1, KeyValue.Type.Put, "value-2"),
048        KeyValueTestUtil.create("RowB", "family", "qf1",
049            10, KeyValue.Type.Put, "value-10")
050    };
051    KeyValueScanner scan = new KeyValueScanFixture(CellComparator.getInstance(), kvs);
052
053    KeyValue kv = KeyValueUtil.createFirstOnRow(Bytes.toBytes("RowA"));
054    // should seek to this:
055    assertTrue(scan.seek(kv));
056    Cell res = scan.peek();
057    assertEquals(kvs[0], res);
058
059    kv = KeyValueUtil.createFirstOnRow(Bytes.toBytes("RowB"));
060    assertTrue(scan.seek(kv));
061    res = scan.peek();
062    assertEquals(kvs[2], res);
063
064    // ensure we pull things out properly:
065    kv = KeyValueUtil.createFirstOnRow(Bytes.toBytes("RowA"));
066    assertTrue(scan.seek(kv));
067    assertEquals(kvs[0], scan.peek());
068    assertEquals(kvs[0], scan.next());
069    assertEquals(kvs[1], scan.peek());
070    assertEquals(kvs[1], scan.next());
071    assertEquals(kvs[2], scan.peek());
072    assertEquals(kvs[2], scan.next());
073    assertEquals(null, scan.peek());
074    assertEquals(null, scan.next());
075  }
076
077}
078