| /* |
| * $Header: /home/data/cvs/rt/org.eclipse.ecf/tests/bundles/org.eclipse.ecf.tests.apache.httpclient.server/src/org/apache/commons/httpclient/TestExceptions.java,v 1.1 2009/02/13 18:07:49 slewis Exp $ |
| * $Revision: 1.1 $ |
| * $Date: 2009/02/13 18:07:49 $ |
| * |
| * ==================================================================== |
| * |
| * Copyright 1999-2004 The Apache Software Foundation |
| * |
| * Licensed 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. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| * |
| */ |
| package org.apache.commons.httpclient; |
| |
| import java.io.ByteArrayOutputStream; |
| import java.io.IOException; |
| import java.io.PrintStream; |
| import java.io.PrintWriter; |
| import java.io.StringWriter; |
| |
| import junit.framework.Test; |
| import junit.framework.TestCase; |
| import junit.framework.TestSuite; |
| |
| /** |
| * |
| * @author <a href="mailto:laura@lwerner.org">Laura Werner</a> |
| */ |
| public class TestExceptions extends TestCase |
| { |
| |
| // ------------------------------------------------------------ Constructor |
| public TestExceptions(String testName) { |
| super(testName); |
| } |
| |
| // ------------------------------------------------------------------- Main |
| public static void main(String args[]) { |
| String[] testCaseName = { TestExceptions.class.getName() }; |
| junit.textui.TestRunner.main(testCaseName); |
| } |
| |
| // ------------------------------------------------------- TestCase Methods |
| |
| public static Test suite() { |
| return new TestSuite(TestExceptions.class); |
| } |
| |
| /** Make sure that you can retrieve the "cause" from an HttpException */ |
| public void testGetCause() { |
| |
| Exception aCause = new IOException("the cause"); |
| |
| try { |
| throw new HttpException("http exception", aCause); |
| } |
| catch (HttpException e) { |
| assertEquals("Retrieve cause from caught exception", e.getCause(), aCause); |
| } |
| } |
| |
| /** Make sure HttpConnection prints its stack trace to a PrintWriter properly */ |
| public void testStackTraceWriter() { |
| |
| Exception aCause = new IOException("initial exception"); |
| try { |
| throw new HttpException("http exception", aCause); |
| } |
| catch (HttpException e) { |
| // Get the stack trace printed into a string |
| StringWriter stringWriter = new StringWriter(); |
| PrintWriter writer = new PrintWriter(stringWriter); |
| e.printStackTrace(writer); |
| writer.flush(); |
| String stackTrace = stringWriter.toString(); |
| |
| // Do some validation on what got printed |
| validateStackTrace(e, stackTrace); |
| } |
| } |
| |
| /** Make sure HttpConnection prints its stack trace to a PrintStream properly */ |
| public void testStackTraceStream() { |
| |
| Exception aCause = new IOException("initial exception"); |
| try { |
| throw new HttpException("http exception", aCause); |
| } |
| catch (HttpException e) { |
| // Get the stack trace printed into a string |
| ByteArrayOutputStream byteStream = new ByteArrayOutputStream(); |
| PrintStream stream = new PrintStream(byteStream); |
| e.printStackTrace(stream); |
| stream.flush(); |
| String stackTrace = byteStream.toString(); // Assume default charset |
| |
| // Do some validation on what got printed |
| validateStackTrace(e, stackTrace); |
| } |
| } |
| |
| /** |
| * Make sure an HttpException stack trace has the right info in it. |
| * This doesn't bother parsing the whole thing, just does some sanity checks. |
| */ |
| private void validateStackTrace(HttpException exception, String stackTrace) { |
| assertTrue("Starts with exception string", stackTrace.startsWith(exception.toString())); |
| |
| Throwable cause = exception.getCause(); |
| if (cause != null) { |
| assertTrue("Contains 'cause'", stackTrace.toLowerCase().indexOf("cause") != -1); |
| assertTrue("Contains cause.toString()", stackTrace.indexOf(cause.toString()) != -1); |
| } |
| } |
| } |