TestParascaleFileStatus.java Source code

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Here is the source code for TestParascaleFileStatus.java

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/**
 * 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.
 */

import junit.framework.TestCase;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.fs.permission.FsAction;
import org.apache.hadoop.fs.permission.FsPermission;

import java.io.IOException;
import java.util.concurrent.atomic.AtomicInteger;

/**
 * Testcase for {@link ParascaleFileStatus}.
 */
public class TestParascaleFileStatus extends TestCase {

    /**
     * {@inheritDoc}
     */
    @Override
    protected void setUp() throws Exception {
        super.setUp();
    }

    /**
     * {@inheritDoc}
     */
    @Override
    protected void tearDown() throws Exception {
        super.tearDown();
    }

    public void testParascaleFileStatus() {
        final Path p = new Path("/foo/bar");
        final long filesize = 10;
        final ParascaleFileStatusMock parascaleFileStatus = new ParascaleFileStatusMock(filesize, false, 2,
                32 * 1024 * 1024, System.currentTimeMillis(), p);
        parascaleFileStatus.permissionString = "-rw-r-xr-- 1 parascale parascale 0 Sep  9 12:37 16:43 bar";

        assertEquals("invalid blocksize", 32 * 1024 * 1024, parascaleFileStatus.getBlockSize());
        assertEquals("invalid user", "parascale", parascaleFileStatus.getOwner());
        assertEquals("invalid group", "parascale", parascaleFileStatus.getGroup());
        assertEquals("invalid size of file - should be 10 as set in contructor", 10, parascaleFileStatus.getLen());
    }

    public void testLoadPermissionInfo() {
        final Path p = new Path("/foo/bar");
        {
            final ParascaleFileStatusMock parascaleFileStatus = new ParascaleFileStatusMock(10, false, 2,
                    32 * 1024 * 1024, System.currentTimeMillis(), p);
            parascaleFileStatus.permissionString = "-rw-r-xr-- 1 parascale parascale 0 Sep  9 12:37 16:43 bar";
            final FsPermission permission = parascaleFileStatus.getPermission();
            assertEquals(FsAction.READ, permission.getOtherAction());
            assertEquals(FsAction.READ_EXECUTE, permission.getGroupAction());
            assertEquals(FsAction.READ_WRITE, permission.getUserAction());
        }
        {
            final ParascaleFileStatusMock parascaleFileStatus = new ParascaleFileStatusMock(10, false, 2,
                    32 * 1024 * 1024, System.currentTimeMillis(), p);
            parascaleFileStatus.permissionString = "-rw--wxr-- 1 parascale parascale 0 Sep  9 12:37 16:43 bar";
            assertEquals(32 * 1024 * 1024, parascaleFileStatus.getBlockSize());
            assertEquals("parascale", parascaleFileStatus.getOwner());
            final FsPermission permission = parascaleFileStatus.getPermission();
            assertEquals(FsAction.READ, permission.getOtherAction());
            assertEquals(FsAction.WRITE_EXECUTE, permission.getGroupAction());
            assertEquals(FsAction.READ_WRITE, permission.getUserAction());

        }
        final ParascaleFileStatusMock parascaleFileStatus = new ParascaleFileStatusMock(10, false, 2,
                32 * 1024 * 1024, System.currentTimeMillis(), p);
        parascaleFileStatus.permissionString = "-rw-r-xr-- 1 parascale parascale 0 Sep  9 12:37 16:43 bar";
        assertEquals("permissions already loaded - should be lazy", 0, parascaleFileStatus.count.get());
        parascaleFileStatus.getPermission();
        assertEquals("permissions loaded more than once", 1, parascaleFileStatus.count.get());
        parascaleFileStatus.getOwner();
        assertEquals("permissions loaded more than once", 1, parascaleFileStatus.count.get());
        parascaleFileStatus.getGroup();
        assertEquals("permissions loaded more than once", 1, parascaleFileStatus.count.get());
    }

    static class ParascaleFileStatusMock extends ParascaleFileStatus {
        public String permissionString;
        public AtomicInteger count = new AtomicInteger(0);

        ParascaleFileStatusMock(final long length, final boolean isdir, final int block_replication,
                final long blocksize, final long modification_time, final Path path) {
            super(length, isdir, block_replication, blocksize, modification_time, path);
        }

        @Override
        protected String getPermissionString() throws IOException {
            count.incrementAndGet();
            return permissionString;
        }

    }

}