/*
 * 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.core.pattern;

import org.apache.logging.log4j.core.LogEvent;
import org.apache.logging.log4j.core.impl.Log4jLogEvent;
import org.junit.Test;

import static org.junit.Assert.*;

/**
 *
 */
public class ThreadNamePatternConverterTest {

    @Test
    public void testConverterAppendsLogEventNanoTimeToStringBuilder() {
        final LogEvent event = Log4jLogEvent.newBuilder() //
                .setThreadName("Hello-1").build();
        final StringBuilder sb = new StringBuilder();
        final ThreadPatternConverter converter = ThreadPatternConverter.newInstance(null);
        converter.format(event, sb);
        assertEquals("Hello-1", sb.toString());
    }
}

Add pattern converter for thread id in PatternLayout. Add missing unit test on existing thread name converter.
[LOG4J2-1299] Add pattern converter for thread id in PatternLayout. Add
missing unit test on existing thread name converter.