log4j-core/src/test/java/org/apache/logging/log4j/core/async/AsyncLoggersWithAsyncAppenderTest.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
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package org.apache.logging.log4j.core.async;

import java.util.List;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.apache.logging.log4j.core.categories.AsyncLoggers;
import org.apache.logging.log4j.core.junit.LoggerContextRule;
import org.junit.ClassRule;
import org.junit.Test;
import org.junit.experimental.categories.Category;

import static org.junit.Assert.*;

@Category(AsyncLoggers.class)
public class AsyncLoggersWithAsyncAppenderTest {

    @ClassRule
    public static LoggerContextRule context = new LoggerContextRule("AsyncLoggersWithAsyncAppenderTest.xml",
        AsyncLoggerContextSelector.class);

    @Test
    public void testLoggingWorks() throws Exception {
        final Logger logger = LogManager.getLogger();
        logger.error("This {} a test", "is");
        logger.warn("Hello {}!", "world");
        Thread.sleep(100);
        final List<String> list = context.getListAppender("List").getMessages();
        assertNotNull("No events generated", list);
        assertEquals("Incorrect number of events ", 2, list.size());
        String msg = list.get(0);
        String expected = getClass().getName() + " This {} a test - [is] - This is a test";
        assertEquals(expected, msg);
        msg = list.get(1);
        expected = getClass().getName() + " Hello {}! - [world] - Hello world!";
        assertEquals(expected, msg);
    }
}