gobblin.util.HeapDumpForTaskUtilsTest.java Source code

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Here is the source code for gobblin.util.HeapDumpForTaskUtilsTest.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.
 */

package gobblin.util;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.testng.Assert;
import org.testng.annotations.AfterClass;
import org.testng.annotations.BeforeClass;
import org.testng.annotations.Test;

import com.google.common.io.Closer;

@Test(groups = { "gobblin.util" })
public class HeapDumpForTaskUtilsTest {

    private FileSystem fs;

    private static final String TEST_DIR = "dumpScript";
    private static final String SCRIPT_NAME = "dump.sh";

    @BeforeClass
    public void setUp() throws IOException {
        this.fs = FileSystem.getLocal(new Configuration());
        this.fs.mkdirs(new Path(TEST_DIR));
    }

    @Test
    public void testGenerateDumpScript() throws IOException {
        Path dumpScript = new Path(TEST_DIR, SCRIPT_NAME);
        HeapDumpForTaskUtils.generateDumpScript(dumpScript, this.fs, "test.hprof", "chmod 777 ");
        Assert.assertEquals(true, this.fs.exists(dumpScript));
        Assert.assertEquals(true, this.fs.exists(new Path(dumpScript.getParent(), "dumps")));
        Closer closer = Closer.create();
        try {
            BufferedReader scriptReader = closer
                    .register(new BufferedReader(new InputStreamReader(this.fs.open(dumpScript))));
            Assert.assertEquals("#!/bin/sh", scriptReader.readLine());
            Assert.assertEquals("if [ -n \"$HADOOP_PREFIX\" ]; then", scriptReader.readLine());
            Assert.assertEquals(
                    "  ${HADOOP_PREFIX}/bin/hadoop dfs -put test.hprof dumpScript/dumps/${PWD//\\//_}.hprof",
                    scriptReader.readLine());
            Assert.assertEquals("else", scriptReader.readLine());
            Assert.assertEquals(
                    "  ${HADOOP_HOME}/bin/hadoop dfs -put test.hprof dumpScript/dumps/${PWD//\\//_}.hprof",
                    scriptReader.readLine());
            Assert.assertEquals("fi", scriptReader.readLine());
        } catch (Throwable t) {
            closer.rethrow(t);
        } finally {
            closer.close();
        }
    }

    @AfterClass
    public void tearDown() throws IOException {
        fs.delete(new Path(TEST_DIR), true);
        fs.close();
    }
}