alluxio.underfs.hdfs.HdfsUnderFileSystemTest.java Source code

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Here is the source code for alluxio.underfs.hdfs.HdfsUnderFileSystemTest.java

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/*
 * 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.underfs.hdfs;

import alluxio.AlluxioURI;
import alluxio.PropertyKey;
import alluxio.underfs.UnderFileSystem.UnderFSType;

import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;

/**
 * Tests {@link HdfsUnderFileSystem}.
 */
public final class HdfsUnderFileSystemTest {

    private HdfsUnderFileSystem mMockHdfsUnderFileSystem;

    @Before
    public final void before() throws Exception {
        mMockHdfsUnderFileSystem = new HdfsUnderFileSystem(new AlluxioURI("file:///"), null);
    }

    /**
     * Tests the {@link HdfsUnderFileSystem#getUnderFSType()} method.
     * Confirm the UnderFSType for HdfsUnderFileSystem
     */
    @Test
    public void getUnderFSType() throws Exception {
        Assert.assertEquals(UnderFSType.HDFS, mMockHdfsUnderFileSystem.getUnderFSType());
    }

    /**
     * Tests the {@link HdfsUnderFileSystem#prepareConfiguration} method.
     *
     * Checks the hdfs implements class and alluxio underfs config setting
     */
    @Test
    public void prepareConfiguration() throws Exception {
        org.apache.hadoop.conf.Configuration conf = new org.apache.hadoop.conf.Configuration();
        mMockHdfsUnderFileSystem.prepareConfiguration("", conf);
        Assert.assertEquals("org.apache.hadoop.hdfs.DistributedFileSystem", conf.get("fs.hdfs.impl"));
        Assert.assertFalse(conf.getBoolean("fs.hdfs.impl.disable.cache", false));
        Assert.assertNotNull(conf.get(PropertyKey.UNDERFS_HDFS_CONFIGURATION.toString()));
    }
}