org.springframework.data.hadoop.mapreduce.JarTests.java Source code

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Here is the source code for org.springframework.data.hadoop.mapreduce.JarTests.java

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/*
 * Copyright 2011-2013 the original author or authors.
 * 
 * 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 org.springframework.data.hadoop.mapreduce;

import java.util.Enumeration;
import java.util.Properties;

import org.apache.hadoop.conf.Configuration;
import org.junit.AfterClass;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.ApplicationContext;
import org.springframework.data.hadoop.TestUtils;
import org.springframework.data.hadoop.batch.JobsTrigger;
import org.springframework.data.hadoop.mapreduce.ExecutionUtils.ExitTrapped;
import org.springframework.test.annotation.DirtiesContext;
import org.springframework.test.annotation.DirtiesContext.ClassMode;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.springframework.util.ClassUtils;

import static org.junit.Assert.*;

/**
 * @author Costin Leau
 */
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration
@DirtiesContext(classMode = ClassMode.AFTER_EACH_TEST_METHOD)
public class JarTests {

    {
        TestUtils.hackHadoopStagingOnWin();
    }

    @Autowired
    private ApplicationContext ctx;
    @Autowired
    private Configuration hadoopConfiguration;

    @AfterClass
    public static void cleanProps() {
        Properties properties = System.getProperties();
        Enumeration<?> props = properties.propertyNames();

        while (props.hasMoreElements()) {
            Object key = props.nextElement();
            Object value = properties.get(key);
            if (!value.getClass().equals(String.class)) {
                System.out.println("Removing incorrect key [" + key + "] w/ value " + value);
                properties.remove(key);
            }
        }
    }

    @Test
    public void testTasklet() throws Exception {
        JobsTrigger.startJobs(ctx);
    }

    @Test
    public void testTaskletScope() throws Exception {
        assertTrue(ctx.isPrototype("tasklet-ns"));
    }

    @Test
    public void testBadMainClassLoaded() throws Exception {
        assertNotNull(System.getProperties().getProperty("org.springframework.data.jar.init"));
    }

    @Test
    public void testBadMainClassConfiguration() throws Exception {
        Configuration cfg = (Configuration) System.getProperties().get("org.springframework.data.hadoop.jar.cfg");
        assertNotNull(cfg);
        cfg.getClassLoader();

        // check inherited props
        assertEquals("main", hadoopConfiguration.get("cfg"));

        assertEquals("main", cfg.get("cfg"));
        // check nested props
        assertEquals("war", cfg.get("web"));
        assertNull(cfg.get("land"));

        // verify new config object
        Configuration freshConfig = new Configuration();

        // check inherited props
        assertNull(freshConfig.get("cfg"));
        // check nested props
        assertNull(freshConfig.get("web"));
        assertNull(freshConfig.get("land"));
    }

    @Test
    public void testClassVisibility() throws Exception {
        ClassLoader loader = ctx.getClassLoader();
        assertFalse(ClassUtils.isPresent("test.MainClass", loader));
        assertFalse(ClassUtils.isPresent("test.OtherMainClass", loader));
    }

    public void testBadMainClassReturnCode() throws Exception {
        assertEquals(Integer.valueOf(1), ctx.getBean("bad-main-class"));
    }

    @Test
    public void testBadMainClassArgs() throws Exception {
        String args[] = (String[]) System.getProperties().get("org.springframework.data.hadoop.jar.args");
        assertNotNull(args);
        assertEquals(1, args.length);
        assertEquals("bad", args[0]);
    }

    @Test
    public void testBadMainClassPreExit() throws Exception {
        assertNotNull(System.getProperties().get("org.springframework.data.jar.exit.pre"));
    }

    @Test
    public void testExitTrap() throws Exception {
        Error trap = (Error) System.getProperties().get("org.springframework.data.jar.exit.exception");
        assertNotNull(trap);
        assertEquals(ExitTrapped.class, trap.getClass());
        assertEquals(1, ((ExitTrapped) trap).getExitCode());
    }

    @Test
    public void testOtherMainClassLoaded() throws Exception {
        assertNotNull(System.getProperties().getProperty("org.springframework.data.jar.init.other"));
    }

    public void testOtherMainClassReturnCode() throws Exception {
        assertEquals(Integer.valueOf(42), ctx.getBean("other-class"));
    }

    @Test
    public void testOtherMainClassConfiguration() throws Exception {
        Configuration cfg = (Configuration) System.getProperties()
                .get("org.springframework.data.hadoop.jar.other.cfg");
        assertNotNull(cfg);
        // check inherited props
        assertEquals("main", hadoopConfiguration.get("cfg"));
        assertEquals("main", cfg.get("cfg"));
        // check nested props
        assertNull(cfg.get("web"));
        assertEquals("buckethead", cfg.get("land"));

        // verify new config object
        Configuration freshConfig = new Configuration();

        // check inherited props
        assertNull(freshConfig.get("cfg"));
        // check nested props
        assertNull(freshConfig.get("web"));
        assertNull(freshConfig.get("land"));
    }

    @Test
    public void testOtherMainClassArgs() throws Exception {
        String args[] = (String[]) System.getProperties().get("org.springframework.data.hadoop.jar.other.args");
        assertNotNull(args);
        assertEquals(1, args.length);
        assertEquals("42", args[0]);
    }

}