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Java example source code file (TestDefaultResponseParser.java)

This example source code file (TestDefaultResponseParser.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java tags/keywords

basichttpparams, defaulthttpresponsefactory, defaultresponseparser, httpmessageparser, httpparams, nohttpresponseexception, ok\r\n, protocolexception, sessioninputbuffer, sessioninputbuffermockup, string, testcase, testdefaultresponseparser, us-ascii

The TestDefaultResponseParser.java example source code

/*
 * ====================================================================
 * 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.
 * ====================================================================
 *
 * 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.http.impl.conn;

import org.apache.http.Header;
import org.apache.http.HttpResponse;
import org.apache.http.HttpVersion;
import org.apache.http.NoHttpResponseException;
import org.apache.http.ProtocolException;
import org.apache.http.conn.params.ConnConnectionPNames;
import org.apache.http.impl.DefaultHttpResponseFactory;
import org.apache.http.io.HttpMessageParser;
import org.apache.http.io.SessionInputBuffer;
import org.apache.http.message.BasicLineParser;
import org.apache.http.mockup.SessionInputBufferMockup;
import org.apache.http.params.BasicHttpParams;
import org.apache.http.params.HttpParams;

import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;

/**
 * Tests for <code>DefaultResponseParser.
 */
public class TestDefaultResponseParser extends TestCase {

    public TestDefaultResponseParser(String testName) {
        super(testName);
    }

    public static void main(String args[]) {
        String[] testCaseName = { TestDefaultResponseParser.class.getName() };
        junit.textui.TestRunner.main(testCaseName);
    }

    public static Test suite() {
        return new TestSuite(TestDefaultResponseParser.class);
    }
    
    public void testResponseParsingWithSomeGarbage() throws Exception {
    	String s = 
    		"garbage\r\n" + 
    		"garbage\r\n" + 
    		"more garbage\r\n" + 
    		"HTTP/1.1 200 OK\r\n" + 
    		"header1: value1\r\n" + 
    		"header2: value2\r\n" + 
    		"\r\n"; 
    	
    	HttpParams params = new BasicHttpParams();
    	SessionInputBuffer inbuffer = new SessionInputBufferMockup(s, "US-ASCII", params); 
    	HttpMessageParser parser = new DefaultResponseParser(
    			inbuffer, 
    			BasicLineParser.DEFAULT,
    			new DefaultHttpResponseFactory(),
    			params);
    	
    	HttpResponse response = (HttpResponse) parser.parse();
    	assertNotNull(response);
    	assertEquals(HttpVersion.HTTP_1_1, response.getProtocolVersion());
    	assertEquals(200, response.getStatusLine().getStatusCode());
    	
    	Header[] headers = response.getAllHeaders();
    	assertNotNull(headers);
    	assertEquals(2, headers.length);
    	assertEquals("header1", headers[0].getName());
    	assertEquals("header2", headers[1].getName());
    }

    public void testResponseParsingWithTooMuchGarbage() throws Exception {
    	String s = 
    		"garbage\r\n" + 
    		"garbage\r\n" + 
    		"more garbage\r\n" + 
    		"HTTP/1.1 200 OK\r\n" + 
    		"header1: value1\r\n" + 
    		"header2: value2\r\n" + 
    		"\r\n"; 
    	
    	HttpParams params = new BasicHttpParams();
    	params.setParameter(ConnConnectionPNames.MAX_STATUS_LINE_GARBAGE, 2);
    	SessionInputBuffer inbuffer = new SessionInputBufferMockup(s, "US-ASCII", params); 
    	HttpMessageParser parser = new DefaultResponseParser(
    			inbuffer, 
    			BasicLineParser.DEFAULT,
    			new DefaultHttpResponseFactory(),
    			params);
    	
    	try {
        	parser.parse();
        	fail("ProtocolException should have been thrown");
    	} catch (ProtocolException ex) {
    	}
    }

    public void testResponseParsingNoResponse() throws Exception {
    	HttpParams params = new BasicHttpParams();
    	SessionInputBuffer inbuffer = new SessionInputBufferMockup("", "US-ASCII", params); 
    	HttpMessageParser parser = new DefaultResponseParser(
    			inbuffer, 
    			BasicLineParser.DEFAULT,
    			new DefaultHttpResponseFactory(),
    			params);
    	
    	try {
        	parser.parse();
        	fail("NoHttpResponseException should have been thrown");
    	} catch (NoHttpResponseException ex) {
    	}
    }
    
    public void testResponseParsingOnlyGarbage() throws Exception {
    	String s = 
    		"garbage\r\n" + 
    		"garbage\r\n" + 
    		"more garbage\r\n" + 
    		"a lot more garbage\r\n";
    	HttpParams params = new BasicHttpParams();
    	SessionInputBuffer inbuffer = new SessionInputBufferMockup(s, "US-ASCII", params); 
    	HttpMessageParser parser = new DefaultResponseParser(
    			inbuffer, 
    			BasicLineParser.DEFAULT,
    			new DefaultHttpResponseFactory(),
    			params);
    	
    	try {
        	parser.parse();
        	fail("ProtocolException should have been thrown");
    	} catch (ProtocolException ex) {
    	}
    }
    
}

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