/*
* JBoss, Home of Professional Open Source.
* See the COPYRIGHT.txt file distributed with this work for information
* regarding copyright ownership. Some portions may be licensed
* to Red Hat, Inc. under one or more contributor license agreements.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301 USA.
*/
package org.teiid.olingo.web.gzip;
import org.apache.commons.lang3.ArrayUtils;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
import org.mockito.Mockito;
import javax.servlet.ServletOutputStream;
import javax.servlet.WriteListener;
import javax.servlet.http.HttpServletResponse;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.LinkedList;
import java.util.List;
import java.util.zip.GZIPOutputStream;
public class TestGzipMessageResponse{
static final String TEST_STRING = "test string";
static final byte[] TEST_STRING_IN_GZIP;
static{
try{
ByteArrayOutputStream bos = new ByteArrayOutputStream();
GZIPOutputStream gos = new GZIPOutputStream(bos);
gos.write(TEST_STRING.getBytes());
gos.finish();
gos.flush();
gos.close();
TEST_STRING_IN_GZIP = bos.toByteArray();
} catch (IOException ex){
throw new InternalError("No exception expected: " + ex.toString());
}
}
private GzipMessageResponse response;
private ServletOutputStream stream;
private List<Byte> streamBytes;
@Before
public void prepareResponse() throws IOException{
streamBytes = new LinkedList<>();
stream = new ServletOutputStream(){
@Override public boolean isReady(){ return true; }
@Override public void setWriteListener(WriteListener writeListener){}
@Override public void write(int b) throws IOException{ streamBytes.add((byte)b); }
};
response = new GzipMessageResponse(mockResponse(stream));
}
@Test
public void testIllegalGetOutputStreamInvocation() throws IOException{
response.getWriter();
try{
response.getOutputStream();
Assert.fail("Expected " + IllegalArgumentException.class);
} catch (IllegalStateException ex){/* expected */}
}
@Test
public void testIllegalGetWriterInvocation() throws IOException{
response.getOutputStream();
try{
response.getWriter();
Assert.fail("Expected " + IllegalArgumentException.class);
} catch (IllegalStateException ex){/* expected */}
}
@Test
public void testWriteToWriter() throws IOException{
PrintWriter w = response.getWriter();
w.write(TEST_STRING);
w.close();
Assert.assertArrayEquals("Expected output in GZIP.", TEST_STRING_IN_GZIP,
ArrayUtils.toPrimitive(streamBytes.toArray(new Byte[streamBytes.size()])));
}
@Test
public void testWriteToOutputStream() throws Exception{
ServletOutputStream sos = response.getOutputStream();
sos.write(TEST_STRING.getBytes());
sos.close();
Assert.assertArrayEquals("Expected output in GZIP.", TEST_STRING_IN_GZIP,
ArrayUtils.toPrimitive(streamBytes.toArray(new Byte[streamBytes.size()])));
}
private static HttpServletResponse mockResponse(ServletOutputStream stream) throws IOException{
HttpServletResponse out = Mockito.mock(HttpServletResponse.class);
Mockito.doReturn(stream).when(out).getOutputStream();
Mockito.doThrow(Error.class).when(out).getWriter();
return out;
}
}