cloudstack/utils/test/com/cloud/utils/log/CglibThrowableRendererTest....

105 lines
3.5 KiB
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
// 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 com.cloud.utils.log;
import junit.framework.TestCase;
import org.apache.log4j.*;
import com.cloud.utils.component.ComponentContext;
import com.cloud.utils.db.DB;
import com.cloud.utils.exception.CloudRuntimeException;
import org.apache.log4j.spi.RootLogger;
import org.apache.log4j.spi.ThrowableRenderer;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import java.io.CharArrayWriter;
import java.io.Writer;
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations="classpath:/testContext.xml")
public class CglibThrowableRendererTest extends TestCase {
static Logger another = Logger.getLogger("TEST");
private final static Logger s_logger = Logger.getLogger(CglibThrowableRendererTest.class);
public static class TestClass {
public TestClass() {
}
@DB
public void exception1() {
throw new IllegalArgumentException("What a bad exception");
}
public void exception2() {
try {
exception1();
} catch (Exception e) {
throw new CloudRuntimeException("exception2", e);
}
}
@DB
public void exception() {
try {
exception2();
} catch (Exception e) {
throw new CloudRuntimeException("exception", e);
}
}
}
private Logger getAlternateLogger(Writer writer, ThrowableRenderer renderer) {
Hierarchy hierarchy = new Hierarchy(new RootLogger(Level.INFO));
if (renderer != null) {
hierarchy.setThrowableRenderer(renderer);
}
Logger alternateRoot = hierarchy.getRootLogger();
alternateRoot.addAppender(new WriterAppender(new SimpleLayout(), writer));
return alternateRoot;
}
@Test
public void testException() {
Writer w = new CharArrayWriter();
Logger alt = getAlternateLogger(w, null);
TestClass test = new TestClass();
try {
test.exception();
} catch (Exception e) {
alt.warn("exception caught", e);
}
// first check that we actually have some call traces containing "<generated>"
// assertTrue(w.toString().contains("<generated>"));
w = new CharArrayWriter();
alt = getAlternateLogger(w, new CglibThrowableRenderer());
try {
test.exception();
} catch (Exception e) {
alt.warn("exception caught", e);
}
// then we check that CglibThrowableRenderer indeed remove those occurrences
assertFalse(w.toString().contains("<generated>"));
}
}