/*
* The Alluxio Open Foundation licenses this work under the Apache License, version 2.0
* (the "License"). You may not use this work except in compliance with the License, which is
* available at www.apache.org/licenses/LICENSE-2.0
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
* either express or implied, as more fully set forth in the License.
*
* See the NOTICE file distributed with this work for information regarding copyright ownership.
*/
package alluxio.worker.block.meta;
import alluxio.worker.block.BlockMetadataManager;
import alluxio.worker.block.BlockMetadataManagerView;
import alluxio.worker.block.TieredBlockStoreTestUtils;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.ExpectedException;
import org.junit.rules.TemporaryFolder;
import java.io.File;
import java.util.HashSet;
/**
* Unit tests for {@link StorageTierView}.
*/
public class StorageTierViewTest {
private static final int TEST_TIER_LEVEL = 0;
private StorageTier mTestTier;
private StorageTierView mTestTierView;
/** Rule to create a new temporary folder during each test. */
@Rule
public TemporaryFolder mTestFolder = new TemporaryFolder();
/** The exception expected to be thrown. */
@Rule
public ExpectedException mThrown = ExpectedException.none();
/**
* Sets up all dependencies before a test runs.
*/
@Before
public void before() throws Exception {
File tempFolder = mTestFolder.newFolder();
BlockMetadataManager metaManager =
TieredBlockStoreTestUtils.defaultMetadataManager(tempFolder.getAbsolutePath());
BlockMetadataManagerView metaManagerView =
new BlockMetadataManagerView(metaManager, new HashSet<Long>(),
new HashSet<Long>());
mTestTier = metaManager.getTiers().get(TEST_TIER_LEVEL);
mTestTierView = new StorageTierView(mTestTier, metaManagerView);
}
/**
* Tests the {@link StorageTierView#getDirViews()} method.
*/
@Test
public void getDirViews() {
Assert.assertEquals(TieredBlockStoreTestUtils.TIER_PATH[TEST_TIER_LEVEL].length, mTestTierView
.getDirViews().size());
}
/**
* Tests the {@link StorageTierView#getDirView(int)} method.
*/
@Test
public void getDirView() {
for (int i = 0; i < TieredBlockStoreTestUtils.TIER_PATH[TEST_TIER_LEVEL].length; i++) {
Assert.assertEquals(i, mTestTierView.getDirView(i).getDirViewIndex());
}
}
/**
* Tests that an exception is thrown when trying to get a storage directory view with a bad index.
*/
@Test
public void getDirViewBadIndex() {
mThrown.expect(IndexOutOfBoundsException.class);
int badDirIndex = TieredBlockStoreTestUtils.TIER_PATH[TEST_TIER_LEVEL].length;
Assert.assertEquals(badDirIndex, mTestTierView.getDirView(badDirIndex).getDirViewIndex());
}
/**
* Tests the {@link StorageTierView#getTierViewAlias()} method.
*/
@Test
public void getTierViewAlias() {
Assert.assertEquals(mTestTier.getTierAlias(), mTestTierView.getTierViewAlias());
}
/**
* Tests the {@link StorageTierView#getTierViewOrdinal()} method.
*/
@Test
public void getTierViewOrdinal() {
Assert.assertEquals(mTestTier.getTierOrdinal(), mTestTierView.getTierViewOrdinal());
}
}