/*
 * 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 java.util.List;

import org.apache.logging.log4j.ThreadContext;
import org.apache.logging.log4j.core.util.Constants;
import org.apache.logging.log4j.junit.LoggerContextRule;
import org.apache.logging.log4j.test.appender.ListAppender;
import org.junit.After;
import org.junit.Before;
import org.junit.ClassRule;
import org.junit.Test;

import static org.junit.Assert.*;

/**
 *
 */
public class RegexReplacementTest {
    private static final String CONFIG = "log4j-replace.xml";
    private static ListAppender app;
    private static ListAppender app2;

    private static final String EXPECTED = "/RegexReplacementTest" + Constants.LINE_SEPARATOR;

    @ClassRule
    public static LoggerContextRule context = new LoggerContextRule(CONFIG);

    @Before
    public void setUp() throws Exception {
        app = context.getListAppender("List").clear();
        app2 = context.getListAppender("List2").clear();
    }

    @After
    public void tearDown() throws Exception {
        ThreadContext.clearMap();
    }

    org.apache.logging.log4j.Logger logger = context.getLogger("LoggerTest");
    org.apache.logging.log4j.Logger logger2 = context.getLogger("ReplacementTest");

    @Test
    public void testReplacement() {
        logger.error(this.getClass().getName());
        List<String> msgs = app.getMessages();
        assertNotNull(msgs);
        assertEquals("Incorrect number of messages. Should be 1 is " + msgs.size(), 1, msgs.size());
        assertTrue("Replacement failed - expected ending " + EXPECTED + " Actual " + msgs.get(0),
            msgs.get(0).endsWith(EXPECTED));
        app.clear();
        ThreadContext.put("MyKey", "Apache");
        logger.error("This is a test for ${ctx:MyKey}");
        msgs = app.getMessages();
        assertNotNull(msgs);
        assertEquals("Incorrect number of messages. Should be 1 is " + msgs.size(), 1, msgs.size());
        assertEquals("LoggerTest This is a test for Apache" + Constants.LINE_SEPARATOR, msgs.get(0));
    }
     @Test
    public void testConverter() {
        logger2.error(this.getClass().getName());
        final List<String> msgs = app2.getMessages();
        assertNotNull(msgs);
         assertEquals("Incorrect number of messages. Should be 1 is " + msgs.size(), 1, msgs.size());
         assertTrue("Replacement failed - expected ending " + EXPECTED + " Actual " + msgs.get(0),
             msgs.get(0).endsWith(EXPECTED));
    }
}

@@ -842,16 +842,151 @@
 ttern;%0A%0A
+import static org.junit.Assert.assertEquals;%0Aimport static org.junit.Assert.assertNotNull;%0Aimport static org.junit.Assert.assertTrue;%0A%0A
 import j
@@ -1154,24 +1154,84 @@
 ontextRule;%0A
+import org.apache.logging.log4j.junit.ThreadContextMapRule;%0A
 import org.a
@@ -1282,32 +1282,8 @@
 er;%0A
-import org.junit.After;%0A
 impo
@@ -1352,29 +1352,21 @@
 nit.
-Test
+Rule
 ;%0A
-%0A
 import 
-static 
 org.
@@ -1375,16 +1375,12 @@
 nit.
-Assert.*
+Test
 ;%0A%0A/
@@ -1748,24 +1748,122 @@
 e(CONFIG);%0A%0A
+    @Rule%0A    public final ThreadContextMapRule threadContextRule = new ThreadContextMapRule(); %0A%0A
     @Before%0A
@@ -2028,106 +2028,8 @@
  %7D%0A%0A
-    @After%0A    public void tearDown() throws Exception %7B%0A        ThreadContext.clearMap();%0A    %7D%0A%0A
     

Use a ThreadContextRule to clean up tests.