| /******************************************************************************* |
| * Copyright (c) 2010, 2018 Willink Transformations and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v2.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v20.html |
| * |
| * Contributors: |
| * E.D.Willink - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.ocl.examples.xtext.tests; |
| |
| import org.apache.log4j.ConsoleAppender; |
| import org.apache.log4j.Level; |
| import org.apache.log4j.Logger; |
| import org.apache.log4j.SimpleLayout; |
| import org.apache.log4j.spi.LoggingEvent; |
| import org.apache.log4j.spi.ThrowableInformation; |
| |
| /** |
| * If a TestCaseAppender is installed duiring a test, any console output causes a test failure. |
| */ |
| public final class TestCaseAppender extends ConsoleAppender |
| { |
| private static Logger rootLogger = Logger.getRootLogger(); |
| public static TestCaseAppender INSTANCE = new TestCaseAppender(); |
| |
| private boolean installed = false; |
| |
| private TestCaseAppender() { |
| super(new SimpleLayout(), SYSTEM_OUT); |
| setName("TestCaseAppender"); |
| } |
| |
| @Override |
| public void append(LoggingEvent event) { |
| if (event.getLevel().isGreaterOrEqual(Level.INFO)) { |
| String renderedMessage = event.getRenderedMessage(); |
| ThrowableInformation throwableInformation = event.getThrowableInformation(); |
| Throwable throwable = throwableInformation != null ? throwableInformation.getThrowable() : null; |
| throw new Error(renderedMessage, throwable); |
| } |
| // super.append(event); |
| } |
| |
| public void install() { |
| if (!installed) { |
| rootLogger.addAppender(this); |
| installed = true; |
| } |
| } |
| |
| public void uninstall() { |
| rootLogger.removeAppender(this); |
| installed = false; |
| } |
| } |