com.rk.grid.server.TaskExecutorsTest.java Source code

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Here is the source code for com.rk.grid.server.TaskExecutorsTest.java

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/**
 *    Copyright 2012 RK
 *
 *    Licensed 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 com.rk.grid.server;

import static org.junit.Assert.assertEquals;

import java.util.Collection;
import java.util.Collections;
import java.util.List;

import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

import com.rk.grid.testing.ErrorTask;
import com.rk.grid.testing.FibonacciTask;
import com.rk.grid.testing.TestHandler;
import com.rk.grid.testing.TestObserver;

/**
 * @author RK
 *
 */
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = { "/ExecutionServerPrototype-context.xml" })
public class TaskExecutorsTest {

    @Autowired
    private ITaskExecutor taskExecutor;

    /**
     * @throws java.lang.Exception
     */
    @Before
    public void setUp() throws Exception {
    }

    /**
     * @throws java.lang.Exception
     */
    @After
    public void tearDown() throws Exception {
    }

    /**
     * Test method for {@link com.rk.grid.server.TaskExecutors#newFixedCluster(int, int, java.lang.String[])}.
     * @throws Exception 
     */
    @Test
    public void testNewFixedClusterIntIntStringArray() throws Exception {
        ITaskExecutor executor = TaskExecutors.newFixedCluster(3, 1, "-Xms20m");
        executor.unPause();
        int taskCount = 30;
        Collection<ITask<String>> tasks = FibonacciTask.generateTasks(taskCount);
        TestHandler resultHandler = new TestHandler("TestHelloWorld");

        executor.execute(tasks, resultHandler);

        resultHandler.await();
        executor.shutdown();

        assertEquals(taskCount, resultHandler.getResultCount());
        assertEquals(0, resultHandler.getRejectedCount());
        assertEquals(0, resultHandler.getErrorCount());
    }

    /**
     * Test method for {@link com.rk.grid.server.TaskExecutors#newFixedCluster(java.lang.String, int, int, java.lang.String[])}.
     * @throws Exception 
     */
    @Test
    public void testNewFixedClusterStringIntIntStringArray() throws Exception {
        ITaskExecutor executor = TaskExecutors.newFixedCluster("Task-Autowiring-Example-context.xml", 3, 1,
                "-Xms20m");
        executor.unPause();

        int taskCount = 3;
        Collection<ITask<String>> tasks = FibonacciTask.generateTasks(taskCount);
        TestHandler resultHandler = new TestHandler("TestHelloWorld");

        executor.execute(tasks, resultHandler);

        resultHandler.await();
        executor.shutdown();

        assertEquals(taskCount, resultHandler.getResultCount());
        assertEquals(0, resultHandler.getRejectedCount());
        assertEquals(0, resultHandler.getErrorCount());
    }

    /**
     * Test method for {@link com.rk.grid.server.TaskExecutors#newFixedCluster(java.lang.String, int, int, java.lang.String[])}.
     * @throws Exception 
     */
    @Test
    public void testSpringContextLoading() throws Exception {

        this.taskExecutor.unPause();

        int taskCount = 123;
        Collection<ITask<String>> tasks = FibonacciTask.generateTasks(taskCount);
        TestHandler resultHandler = new TestHandler("TestHelloWorld");
        ITaskObserver taskObserver = new TestObserver();

        this.taskExecutor.execute(tasks, resultHandler, taskObserver);

        resultHandler.await();
        this.taskExecutor.shutdown();

        assertEquals(taskCount, resultHandler.getResultCount());
        assertEquals(0, resultHandler.getRejectedCount());
        assertEquals(0, resultHandler.getErrorCount());
    }

    /**
     * Test method for {@link com.rk.grid.server.TaskExecutors#newFixedCluster(java.lang.String, int, int, java.lang.String[])}.
     * @throws Exception 
     */
    @Test
    public void testErrorReporting() throws Exception {
        ITaskExecutor executor = TaskExecutors.newFixedCluster(3, 1, "-Xms20m");
        executor.unPause();
        int taskCount = 30;
        List<ITask<String>> tasks = FibonacciTask.generateTasks(taskCount);

        tasks.add(new ErrorTask());

        Collections.shuffle(tasks);

        TestHandler resultHandler = new TestHandler("TestHelloWorld");

        executor.execute(tasks, resultHandler);

        resultHandler.await();
        executor.shutdown();

        assertEquals(taskCount, resultHandler.getResultCount());
        assertEquals(0, resultHandler.getRejectedCount());
        assertEquals(1, resultHandler.getErrorCount());
    }

}