log4j-1.2-api/src/test/java/org/apache/log4j/MDCTestCase.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.log4j;

import org.junit.After;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;

public class MDCTestCase {

    @Before
    public void setUp() {
        MDC.clear();
    }

    @After
    public void tearDown() {
        MDC.clear();
    }

    @Test
    public void testPut() throws Exception {
        MDC.put("key", "some value");
        Assert.assertEquals("some value", MDC.get("key"));
        Assert.assertEquals(1, MDC.getContext().size());
    }

    @Test
    public void testRemoveLastKey() throws Exception {
        MDC.put("key", "some value");
        MDC.remove("key");
    }

}