Attach exception messages to JUnit fail() calls

[lttng-ust-java-tests.git] / lttng-ust-java-tests-log4j / src / test / java / org / lttng / ust / agent / integration / context / Log4jAppContextOrderingIT.java

/*
 * Copyright (C) 2016, EfficiOS Inc., Alexandre Montplaisir <alexmonthy@efficios.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

package org.lttng.ust.agent.integration.context;

import static org.junit.Assert.fail;
import static org.junit.Assume.assumeTrue;

import java.io.IOException;

import org.apache.log4j.Appender;
import org.apache.log4j.Level;
import org.apache.log4j.Logger;
import org.junit.After;
import org.junit.BeforeClass;
import org.lttng.tools.ILttngSession.Domain;
import org.lttng.tools.LttngToolsHelper;
import org.lttng.ust.agent.log4j.LttngLogAppender;
import org.lttng.ust.agent.utils.Log4jTestUtils;
import org.lttng.ust.agent.utils.LttngUtils;

/**
 * Implementation of {@link AppContextOrderingITBase} for the log4j API.
 */
public class Log4jAppContextOrderingIT extends AppContextOrderingITBase {

    private Logger logger;

    /**
     * Class setup
     */
    @BeforeClass
    public static void log4jClassSetup() {
        /* Skip tests if we can't find the JNI library or lttng-tools */
        assumeTrue(Log4jTestUtils.checkForLog4jLibrary());
        assumeTrue(LttngUtils.checkForLttngTools(Domain.LOG4J));

        LttngToolsHelper.destroyAllSessions();
    }

    /**
     * Test teardown
     */
    @After
    public void log4jTeardown() {
        logger.removeAppender((Appender) logHandler);
        logger = null;

        logHandler.close();
        logHandler = null;
    }

    @Override
    protected Domain getDomain() {
        return Domain.LOG4J;
    }

    @Override
    protected void registerAgent() {
        logger = Logger.getLogger(EVENT_NAME);
        logger.setLevel(Level.ALL);

        try {
            logHandler = new LttngLogAppender();
        } catch (SecurityException | IOException e) {
            fail(e.getMessage());
        }
        logger.addAppender((Appender) logHandler);
    }

    @Override
    protected void sendEventsToLoggers() {
        Log4jTestUtils.send10Events(logger);
    }
}