| /** |
| * 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 |
| * <p> |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * <p> |
| * 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.ozone.om.snapshot; |
| |
| import org.apache.hadoop.ozone.om.ratis.OMRatisSnapshotInfo; |
| import org.junit.Assert; |
| import org.junit.Rule; |
| import org.junit.Test; |
| import org.junit.rules.TemporaryFolder; |
| |
| import java.io.File; |
| import java.util.Random; |
| |
| /** |
| * Tests {@link org.apache.hadoop.ozone.om.ratis.OMRatisSnapshotInfo}. |
| */ |
| public class TestOMRatisSnapshotInfo { |
| |
| @Rule |
| public TemporaryFolder folder = new TemporaryFolder(); |
| |
| @Test |
| public void testSaveAndLoadSnapshotInfo() throws Exception { |
| File rootDir = folder.newFolder(); |
| OMRatisSnapshotInfo omRatisSnapshotInfo = new OMRatisSnapshotInfo(rootDir); |
| |
| // Initially term and index should be 0 and -1 |
| Assert.assertEquals(0, omRatisSnapshotInfo.getTerm()); |
| Assert.assertEquals(-1, omRatisSnapshotInfo.getIndex()); |
| |
| Random random = new Random(); |
| int snapshotIndex = random.nextInt(50); |
| int termIndex = random.nextInt(10); |
| |
| // Save snapshotInfo to disk |
| omRatisSnapshotInfo.updateTerm(termIndex); |
| omRatisSnapshotInfo.saveRatisSnapshotToDisk(snapshotIndex); |
| |
| Assert.assertEquals(termIndex, omRatisSnapshotInfo.getTerm()); |
| Assert.assertEquals(snapshotIndex, omRatisSnapshotInfo.getIndex()); |
| |
| // Load the snapshot file into new SnapshotInfo |
| OMRatisSnapshotInfo newSnapshotInfo = new OMRatisSnapshotInfo(rootDir); |
| |
| // Verify that the snapshot file loaded properly |
| Assert.assertEquals(termIndex, newSnapshotInfo.getTerm()); |
| Assert.assertEquals(snapshotIndex, newSnapshotInfo.getIndex()); |
| } |
| |
| } |