ResponseTest.java

/* Copyright 2009, 2011 predic8 GmbH, www.predic8.com

   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. */


package com.predic8.membrane.core.http;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Arrays;

import org.junit.After;
import org.junit.Before;
import org.junit.Test;

import com.predic8.membrane.core.util.EndOfStreamException;

public class ResponseTest {

	private Response res1;

	private Response res2;

	private Response res3;

	private InputStream in1;

	private InputStream in2;

	private InputStream in3;

	private ByteArrayOutputStream tempOut;

	private InputStream tempIn;

	@Before
	public void setUp() throws Exception {
		in1 = ResponseTest.this.getClass().getClassLoader().getResourceAsStream("response-unchunked-html.msg");
		in2 = ResponseTest.this.getClass().getClassLoader().getResourceAsStream("response-unchunked-image.msg");
		in3 = ResponseTest.this.getClass().getClassLoader().getResourceAsStream("response-chunked-html.msg");

		res1 = new Response();
		res2 = new Response();
		res3 = new Response();
	}

	@After
	public void tearDown() throws Exception {
		if (in1 != null) {
			in1.close();
		}

		if (in2 != null) {
			in2.close();
		}

		if (in3 != null) {
			in3.close();
		}

		if (tempOut != null)
			tempOut.close();

		if (tempIn != null)
			tempIn.close();
	}

	@Test
	public void testParseStartLine1() throws IOException, EndOfStreamException {
		res1.parseStartLine(in1);
		assertEquals(200, res1.getStatusCode());
		assertEquals("1.1", res1.getVersion());
	}

	@Test
	public void testParseStartLine2() throws IOException, EndOfStreamException {
		res2.parseStartLine(in2);
		assertEquals(200, res2.getStatusCode());
		assertEquals("1.1", res2.getVersion());
	}

	@Test
	public void testParseStartLine3() throws IOException, EndOfStreamException {
		res3.parseStartLine(in3);
		assertEquals(200, res3.getStatusCode());
		assertEquals("1.1", res3.getVersion());
	}

	@Test
	public void testUnchunkedHtmlRead() throws Exception {
		res1.read(in1, true);
		assertEquals(200, res1.getStatusCode());
		assertEquals(true, res1.isHTTP11());
		assertEquals(true, res1.isKeepAlive());
		assertNotNull(res1.getBody());
		assertEquals(6122, res1.getBody().getLength());
		assertEquals(6122, res1.getHeader().getContentLength());
	}

	@Test
	public void testUnchunkedHtmlWrite() throws Exception {
		tempOut = new ByteArrayOutputStream();
		res1.read(in1, true);
		res1.addObserver(new AbstractMessageObserver() {}); // forces the request to retain the body
		res1.write(tempOut);


		tempIn = new ByteArrayInputStream(tempOut.toByteArray());

		Response resTemp = new Response();
		resTemp.read(tempIn, true);

		assertEquals(res1.getStatusCode(), resTemp.getStatusCode());
		assertEquals(res1.getStatusMessage(), resTemp.getStatusMessage());
		assertTrue(Arrays.equals(res1.getBody().getContent(), resTemp.getBody().getContent()));
		assertTrue(Arrays.equals(res1.getBody().getRaw(), resTemp.getBody().getRaw()));
	}

	@Test
	public void testUnchunkedImageRead() throws Exception {
		res2.read(in2, true);
		assertEquals(200, res2.getStatusCode());
		assertEquals(true, res2.isHTTP11());
		assertEquals(true, res2.isKeepAlive());
		assertNotNull(res2.getBody());
		assertEquals(21621, res2.getBody().getLength());
		assertEquals(21621, res2.getHeader().getContentLength());
	}


	@Test
	public void testUnchunkedImageWrite() throws Exception {
		tempOut = new ByteArrayOutputStream();
		res2.read(in2, true);
		res2.addObserver(new AbstractMessageObserver() {}); // forces the request to retain the body
		res2.write(tempOut);


		tempIn = new ByteArrayInputStream(tempOut.toByteArray());

		Response resTemp = new Response();
		resTemp.read(tempIn, true);

		assertEquals(res2.getStatusCode(), resTemp.getStatusCode());
		assertEquals(res2.getStatusMessage(), resTemp.getStatusMessage());

		assertEquals(res2.getBody().getContent().length, resTemp.getBody().getContent().length);
		assertTrue(Arrays.equals(res2.getBody().getContent(), resTemp.getBody().getContent()));
	}


	@Test
	public void testChunkedHtmlRead() throws Exception {
		res3.read(in3, true);
		assertEquals(200, res3.getStatusCode());
		assertEquals(true, res3.isHTTP11());
		assertEquals(true, res3.isKeepAlive());
		assertNotNull(res3.getBody());
	}


	@Test
	public void testChunkedHtmlWrite() throws Exception {
		tempOut = new ByteArrayOutputStream();
		res3.read(in3, true);
		res3.write(tempOut);


		tempIn = new ByteArrayInputStream(tempOut.toByteArray());

		Response resTemp = new Response();
		resTemp.read(tempIn, true);

		assertEquals(res3.getStatusCode(), resTemp.getStatusCode());
		assertEquals(res3.getStatusMessage(), resTemp.getStatusMessage());

		assertEquals(res3.getBody().getContent().length, resTemp.getBody().getContent().length);
		assertTrue(Arrays.equals(res3.getBody().getContent(), resTemp.getBody().getContent()));
	}

	@Test
	public void testWithNoContentLength() throws Exception {
		InputStream in = ResponseTest.this.getClass().getClassLoader().getResourceAsStream("response-no-content-length.txt");
		res3.read(in, true);
		assertEquals(185, res3.getBody().getLength());
	}
}