log4j-api/src/test/java/org/apache/logging/log4j/util/ProviderUtilTest.java

/*
 * 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 org.apache.logging.log4j.util;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.TestLoggerContext;
import org.apache.logging.log4j.spi.LoggerContext;
import org.junit.jupiter.api.Test;

import java.io.File;
import java.net.URL;
import java.net.URLClassLoader;

import static org.junit.jupiter.api.Assertions.assertTrue;

public class ProviderUtilTest {

    @Test
    public void complexTest() throws Exception {
        File file = new File("target/classes");
        ClassLoader classLoader = new URLClassLoader(new URL[] {file.toURI().toURL()});
        Worker worker = new Worker();
        worker.setContextClassLoader(classLoader);
        worker.start();
        worker.join();
        assertTrue(worker.context instanceof TestLoggerContext, "Incorrect LoggerContext");
    }

    private static class Worker extends Thread {
        LoggerContext context = null;

        @Override
        public void run() {
            context = LogManager.getContext(false);
        }
    }
}