hbase-server/src/test/java/org/apache/hadoop/hbase/wal/TestWALProvider.java

   1 /*
   2  * Licensed to the Apache Software Foundation (ASF) under one
   3  * or more contributor license agreements.  See the NOTICE file
   4  * distributed with this work for additional information
   5  * regarding copyright ownership.  The ASF licenses this file
   6  * to you under the Apache License, Version 2.0 (the
   7  * "License"); you may not use this file except in compliance
   8  * with the License.  You may obtain a copy of the License at
   9  *
  10  *     http://www.apache.org/licenses/LICENSE-2.0
  11  *
  12  * Unless required by applicable law or agreed to in writing, software
  13  * distributed under the License is distributed on an "AS IS" BASIS,
  14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15  * See the License for the specific language governing permissions and
  16  * limitations under the License.
  17  */
  18 package org.apache.hadoop.hbase.wal;
  19
  20 import static org.junit.Assert.assertTrue;
  21 import java.io.IOException;
  22 import java.util.Comparator;
  23 import org.apache.hadoop.fs.Path;
  24 import org.apache.hadoop.hbase.HBaseClassTestRule;
  25 import org.apache.hadoop.hbase.testclassification.RegionServerTests;
  26 import org.apache.hadoop.hbase.testclassification.SmallTests;
  27 import org.junit.ClassRule;
  28 import org.junit.Test;
  29 import org.junit.experimental.categories.Category;
  30
  31 @Category({ RegionServerTests.class, SmallTests.class})
  32 public class TestWALProvider {
  33   @ClassRule
  34   public static final HBaseClassTestRule CLASS_RULE =
  35     HBaseClassTestRule.forClass(TestWALProvider.class);
  36
  37   /**
  38    * Test start time comparator.
  39    */
  40   @Test
  41   public void testWALStartTimeComparator() throws IOException {
  42     Path metaPath1 = new Path("hdfs://localhost:59875/user/stack/test-data/" +
  43       "f4cb8ffa-6ff7-59a6-f167-6cc00f24899a/WALs/localhost,59908,1600304600425/" +
  44       "localhost%2C59908%2C1600304600425.meta.1600304604319.meta");
  45     Path metaPath2 = new Path("hdfs://localhost:59875/user/stack/test-data/" +
  46       "f4cb8ffa-6ff7-59a6-f167-6cc00f24899a/WALs/localhost,59908,1600304600425/" +
  47       "localhost%2C59908%2C1600304600425.meta.1600304604320.meta");
  48     Path path3 = new Path("hdfs://localhost:59875/user/stack/test-data/" +
  49       "f4cb8ffa-6ff7-59a6-f167-6cc00f24899a/WALs/localhost,59908,1600304600425/" +
  50       "localhost%2C59908%2C1600304600425.1600304604321");
  51     Path metaPath4 = new Path("hdfs://localhost:59875/user/stack/test-data/" +
  52       "f4cb8ffa-6ff7-59a6-f167-6cc00f24899a/WALs/localhost,59908,1600304600425/" +
  53       "localhost%2C59908%2C1600304600425.meta.1600304604321.meta");
  54     Comparator c = new AbstractFSWALProvider.WALStartTimeComparator();
  55     assertTrue(c.compare(metaPath1, metaPath1) == 0);
  56     assertTrue(c.compare(metaPath2, metaPath2) == 0);
  57     assertTrue(c.compare(metaPath1, metaPath2) < 0);
  58     assertTrue(c.compare(metaPath2, metaPath1) > 0);
  59     assertTrue(c.compare(metaPath2, path3) < 0);
  60     assertTrue(c.compare(path3, metaPath4) == 0);
  61   }
  62 }