/*
 * $HeadURL$
 * $Revision$
 * $Date$
 * 
 * ====================================================================
 *
 *  Copyright 1999-2006 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.http.message;

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

import org.apache.http.Header;
import org.apache.http.HttpEntity;
import org.apache.http.HttpEntityEnclosingRequest;
import org.apache.http.HttpRequest;
import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.HttpVersion;
import org.apache.http.entity.BasicHttpEntity;
import org.apache.http.params.HttpProtocolParams;

/**
 * Unit tests for {@link Header}.
 *
 * @author <a href="mailto:oleg at ural.ru">Oleg Kalnichevski</a>
 */
public class TestBasicMessages extends TestCase {

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

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

    public static Test suite() {
        return new TestSuite(TestBasicMessages.class);
    }

    public void testDefaultResponseConstructors() {
        HttpResponse response = new BasicHttpResponse(HttpVersion.HTTP_1_0, HttpStatus.SC_BAD_REQUEST);
        assertNotNull(response.getHttpVersion());
        assertEquals(HttpVersion.HTTP_1_0, response.getHttpVersion());
        assertEquals(HttpStatus.SC_BAD_REQUEST, response.getStatusLine().getStatusCode());
        
        response = new BasicHttpResponse(new BasicStatusLine(
                HttpVersion.HTTP_1_1, HttpStatus.SC_INTERNAL_SERVER_ERROR, "whatever"));
        assertNotNull(response.getHttpVersion());
        assertEquals(HttpVersion.HTTP_1_1, response.getHttpVersion());
        assertEquals(HttpStatus.SC_INTERNAL_SERVER_ERROR, response.getStatusLine().getStatusCode());
        assertEquals("whatever", response.getStatusLine().getReasonPhrase());
    }

    public void testSetResponseStatus() {
        HttpResponse response = new BasicHttpResponse(HttpVersion.HTTP_1_1, 200);
        assertNotNull(response.getHttpVersion());
        assertNotNull(response.getStatusLine());
        assertEquals(200, response.getStatusLine().getStatusCode());
        
        response = new BasicHttpResponse(HttpVersion.HTTP_1_0, HttpStatus.SC_BAD_REQUEST);
        assertNotNull(response.getHttpVersion());
        assertEquals(HttpVersion.HTTP_1_0, response.getHttpVersion());
        assertEquals(HttpStatus.SC_BAD_REQUEST, response.getStatusLine().getStatusCode());
        
        response = new BasicHttpResponse(new BasicStatusLine(
                HttpVersion.HTTP_1_1, HttpStatus.SC_INTERNAL_SERVER_ERROR, "whatever"));
        assertNotNull(response.getHttpVersion());
        assertEquals(HttpVersion.HTTP_1_1, response.getHttpVersion());
        assertEquals(HttpStatus.SC_INTERNAL_SERVER_ERROR, response.getStatusLine().getStatusCode());
        assertEquals("whatever", response.getStatusLine().getReasonPhrase());
        
        response = new BasicHttpResponse(HttpVersion.HTTP_1_1, HttpStatus.SC_OK);
        try {
            response.setStatusCode(-23);
            fail("IllegalArgumentException should have been thrown");
        } catch (IllegalArgumentException ex) {
            // expected
        }
        response = new BasicHttpResponse(HttpVersion.HTTP_1_1, HttpStatus.SC_OK);
        try {
            response.setStatusLine(null, 200);
            fail("IllegalArgumentException should have been thrown");
        } catch (IllegalArgumentException ex) {
            // expected
        }
        response = new BasicHttpResponse(HttpVersion.HTTP_1_1, HttpStatus.SC_OK);
        try {
            response.setStatusLine(null);
            fail("IllegalArgumentException should have been thrown");
        } catch (IllegalArgumentException ex) {
            // expected
        }
    }
    
    public void testSetResponseEntity() {
        HttpResponse response = new BasicHttpResponse(HttpVersion.HTTP_1_1, HttpStatus.SC_OK);
        assertNull(response.getEntity());
        
        HttpEntity entity = new BasicHttpEntity();
        response.setEntity(entity);
        assertTrue(entity == response.getEntity());
    }

    public void testDefaultRequestConstructors() {
        HttpRequest request = new BasicHttpRequest("WHATEVER", "/");
        assertNotNull(request.getHttpVersion());
        assertEquals("WHATEVER", request.getRequestLine().getMethod());
        assertEquals("/", request.getRequestLine().getUri());

        request = new BasicHttpRequest("GET", "/", HttpVersion.HTTP_1_0);
        assertEquals(HttpVersion.HTTP_1_0, request.getHttpVersion());
        assertEquals("GET", request.getRequestLine().getMethod());
        assertEquals("/", request.getRequestLine().getUri());

        try {
            new BasicHttpRequest(null, null);
            fail("IllegalArgumentException should have been thrown");
        } catch (IllegalArgumentException ex) {
            // expected
        }
        try {
            new BasicHttpRequest("GET", null);
            fail("IllegalArgumentException should have been thrown");
        } catch (IllegalArgumentException ex) {
            // expected
        }
        try {
            new BasicHttpRequest(null);
            fail("IllegalArgumentException should have been thrown");
        } catch (IllegalArgumentException ex) {
            // expected
        }
    }
    
    public void testDefaultEntityEnclosingRequestConstructors() {
        BasicHttpEntityEnclosingRequest request = new BasicHttpEntityEnclosingRequest("GET", "/");
        assertNotNull(request.getHttpVersion());
        assertEquals("GET", request.getRequestLine().getMethod());
        assertEquals("/", request.getRequestLine().getUri());

        request = new BasicHttpEntityEnclosingRequest("GET", "/", HttpVersion.HTTP_1_0);
        assertEquals(HttpVersion.HTTP_1_0, request.getHttpVersion());
        assertEquals("GET", request.getRequestLine().getMethod());
        assertEquals("/", request.getRequestLine().getUri());
    }
    
    public void testSetRequestEntity() {
        BasicHttpEntityEnclosingRequest request = new BasicHttpEntityEnclosingRequest("GET", "/");
        assertNull(request.getEntity());
        
        HttpEntity entity = new BasicHttpEntity();
        request.setEntity(entity);
        assertTrue(entity == request.getEntity());
    }

    public void testExpectContinue() {
        BasicHttpEntityEnclosingRequest request = new BasicHttpEntityEnclosingRequest("GET", "/");
        assertFalse(request.expectContinue()); 
        request.getParams().setBooleanParameter(HttpProtocolParams.USE_EXPECT_CONTINUE, true);
        assertFalse(request.expectContinue());
        request.addHeader("Expect", "100-Continue");
        assertTrue(request.expectContinue()); 
    }

    public void testDefaultGetMethodConstructor() {
        HttpRequest request = new HttpGet("/");
        assertEquals("/", request.getRequestLine().getUri());
        assertEquals("GET", request.getRequestLine().getMethod());
        assertFalse(request instanceof HttpEntityEnclosingRequest);
    }
    
    public void testDefaultPostMethodConstructor() {
        HttpRequest request = new HttpPost("/");
        assertEquals("/", request.getRequestLine().getUri());
        assertEquals("POST", request.getRequestLine().getMethod());
        assertTrue(request instanceof HttpEntityEnclosingRequest);
    }

    public void testDefaultHeadMethodConstructor() {
        HttpRequest request = new HttpHead("/");
        assertEquals("/", request.getRequestLine().getUri());
        assertEquals("HEAD", request.getRequestLine().getMethod());
        assertFalse(request instanceof HttpEntityEnclosingRequest);
    }

}