continuum-webapp/src/test/java/org/apache/maven/continuum/web/action/ContinuumActionLoggingTest.java

package org.apache.maven.continuum.web.action;

/*
 * 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.
 */

import org.apache.maven.continuum.PlexusSpringTestCase;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;

import java.io.BufferedOutputStream;
import java.io.FileOutputStream;
import java.io.FilterOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.io.PrintStream;

import static org.junit.Assert.assertTrue;

/**
 * TestContinuumActionLogging:
 *
 * @author jesse
 */
public class ContinuumActionLoggingTest
    extends PlexusSpringTestCase
{
    StringBuffer testOutput = new StringBuffer();

    @Before
    public void setUp()
        throws Exception
    {
        PrintStream systemPrintStream = new PrintStream( new FilteredStream( System.out ), true );
        System.setOut( systemPrintStream );
    }

    @After
    public void tearDown()
    {
        System.setOut( new PrintStream( new BufferedOutputStream( new FileOutputStream( java.io.FileDescriptor.out ),
                                                                  128 ), true ) );
    }

    @Test
    public void testActionLogging()
        throws Exception
    {
        TestAction testAction = (TestAction) lookup( "com.opensymphony.xwork2.Action", "testAction" );
        String testString = "action test string";
        testAction.setTestString( testString );

        testAction.execute();

        assertTrue( testOutput.toString().indexOf( testString ) != -1 );
    }

    class FilteredStream
        extends FilterOutputStream
    {
        OutputStream stream;

        public FilteredStream( OutputStream stream )
        {
            super( stream );
            this.stream = stream;
        }

        public void write( byte byteArray[] )
            throws IOException
        {
            testOutput.append( new String( byteArray ) );
            stream.write( byteArray );
        }

        public void write( byte byteArray[], int offset, int length )
            throws IOException
        {
            testOutput.append( new String( byteArray, offset, length ) );
            stream.write( byteArray, offset, length );
        }
    }
}