HADOOP-6934. Test for ByteWritable comparator. Contributed by Johannes Zillmann.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@991821 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Eli Collins 2010-09-02 06:26:43 +00:00
parent 1c75bcc76b
commit fa75e35f9e
2 changed files with 56 additions and 0 deletions

View File

@ -125,6 +125,9 @@ Trunk (unreleased changes)
HADOOP-6803. Add native gzip read/write coverage to TestCodec.
(Eli Collins via tomwhite)
HADOOP-6934. Test for ByteWritable comparator.
(Johannes Zillmann via Eli Collins)
OPTIMIZATIONS
HADOOP-6884. Add LOG.isDebugEnabled() guard for each LOG.debug(..).

View File

@ -0,0 +1,53 @@
/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.hadoop.io;
import java.io.IOException;
import org.junit.Test;
import static org.junit.Assert.*;
public class TestBooleanWritable {
@Test
public void testCompareUnequalWritables() throws Exception {
DataOutputBuffer bTrue = writeWritable(new BooleanWritable(true));
DataOutputBuffer bFalse = writeWritable(new BooleanWritable(false));
WritableComparator writableComparator =
WritableComparator.get(BooleanWritable.class);
assertEquals(0, compare(writableComparator, bTrue, bTrue));
assertEquals(0, compare(writableComparator, bFalse, bFalse));
assertEquals(1, compare(writableComparator, bTrue, bFalse));
assertEquals(-1, compare(writableComparator, bFalse, bTrue));
}
private int compare(WritableComparator writableComparator,
DataOutputBuffer buf1, DataOutputBuffer buf2) {
return writableComparator.compare(buf1.getData(), 0, buf1.size(),
buf2.getData(), 0, buf2.size());
}
protected DataOutputBuffer writeWritable(Writable writable)
throws IOException {
DataOutputBuffer out = new DataOutputBuffer(1024);
writable.write(out);
out.flush();
return out;
}
}