TestBasicMessages

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package org.apache.http.message;

import org.apache.http.HttpEntity;
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.junit.Assert;
import org.junit.Test;

/**
 * Unit tests for {@link org.apache.http.HttpMessage}.
 *
 */
public class TestBasicMessages {

    @Test
    public void testDefaultResponseConstructors() {
        HttpResponse response = new BasicHttpResponse(HttpVersion.HTTP_1_0, HttpStatus.SC_BAD_REQUEST, "Bad Request");
        Assert.assertNotNull(response.getProtocolVersion());
        Assert.assertEquals(HttpVersion.HTTP_1_0, response.getProtocolVersion());
        Assert.assertEquals(HttpStatus.SC_BAD_REQUEST, response.getStatusLine().getStatusCode());

        response = new BasicHttpResponse(new BasicStatusLine(
                HttpVersion.HTTP_1_1, HttpStatus.SC_INTERNAL_SERVER_ERROR, "whatever"));
        Assert.assertNotNull(response.getProtocolVersion());
        Assert.assertEquals(HttpVersion.HTTP_1_1, response.getProtocolVersion());
        Assert.assertEquals(HttpStatus.SC_INTERNAL_SERVER_ERROR, response.getStatusLine().getStatusCode());
        Assert.assertEquals("whatever", response.getStatusLine().getReasonPhrase());
    }

    @Test
    public void testSetResponseStatus() {
        HttpResponse response = new BasicHttpResponse(HttpVersion.HTTP_1_1, 200, "OK");
        Assert.assertNotNull(response.getProtocolVersion());
        Assert.assertNotNull(response.getStatusLine());
        Assert.assertEquals(200, response.getStatusLine().getStatusCode());

        response = new BasicHttpResponse(HttpVersion.HTTP_1_0, HttpStatus.SC_BAD_REQUEST, "Bad Request");
        Assert.assertNotNull(response.getProtocolVersion());
        Assert.assertEquals(HttpVersion.HTTP_1_0, response.getProtocolVersion());
        Assert.assertEquals(HttpStatus.SC_BAD_REQUEST, response.getStatusLine().getStatusCode());

        response = new BasicHttpResponse(new BasicStatusLine(
                HttpVersion.HTTP_1_1, HttpStatus.SC_INTERNAL_SERVER_ERROR, "whatever"));
        Assert.assertNotNull(response.getProtocolVersion());
        Assert.assertEquals(HttpVersion.HTTP_1_1, response.getProtocolVersion());
        Assert.assertEquals(HttpStatus.SC_INTERNAL_SERVER_ERROR, response.getStatusLine().getStatusCode());
        Assert.assertEquals("whatever", response.getStatusLine().getReasonPhrase());

        response = new BasicHttpResponse(HttpVersion.HTTP_1_1, HttpStatus.SC_OK, "OK");
        try {
            response.setStatusCode(-23);
            Assert.fail("IllegalArgumentException should have been thrown");
        } catch (final IllegalArgumentException ex) {
            // expected
        }
        response = new BasicHttpResponse(HttpVersion.HTTP_1_1, HttpStatus.SC_OK, "OK");
        try {
            response.setStatusLine(null);
            Assert.fail("IllegalArgumentException should have been thrown");
        } catch (final IllegalArgumentException ex) {
            // expected
        }
    }

    @Test
    public void testSetResponseEntity() {
        final HttpResponse response = new BasicHttpResponse(HttpVersion.HTTP_1_1, HttpStatus.SC_OK, "OK");
        Assert.assertNull(response.getEntity());

        final HttpEntity entity = new BasicHttpEntity();
        response.setEntity(entity);
        Assert.assertTrue(entity == response.getEntity());
    }

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

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

        try {
            new BasicHttpRequest(null, null);
            Assert.fail("IllegalArgumentException should have been thrown");
        } catch (final IllegalArgumentException ex) {
            // expected
        }
        try {
            new BasicHttpRequest("GET", null);
            Assert.fail("IllegalArgumentException should have been thrown");
        } catch (final IllegalArgumentException ex) {
            // expected
        }
        try {
            new BasicHttpRequest(null);
            Assert.fail("IllegalArgumentException should have been thrown");
        } catch (final IllegalArgumentException ex) {
            // expected
        }
    }

    @Test
    public void testDefaultEntityEnclosingRequestConstructors() {
        BasicHttpEntityEnclosingRequest request = new BasicHttpEntityEnclosingRequest("GET", "/");
        Assert.assertNotNull(request.getProtocolVersion());
        Assert.assertEquals("GET", request.getRequestLine().getMethod());
        Assert.assertEquals("/", request.getRequestLine().getUri());

        request = new BasicHttpEntityEnclosingRequest("GET", "/", HttpVersion.HTTP_1_0);
        Assert.assertEquals(HttpVersion.HTTP_1_0, request.getProtocolVersion());
        Assert.assertEquals("GET", request.getRequestLine().getMethod());
        Assert.assertEquals("/", request.getRequestLine().getUri());
    }

    @Test
    public void testSetRequestEntity() {
        final BasicHttpEntityEnclosingRequest request = new BasicHttpEntityEnclosingRequest("GET", "/");
        Assert.assertNull(request.getEntity());

        final HttpEntity entity = new BasicHttpEntity();
        request.setEntity(entity);
        Assert.assertTrue(entity == request.getEntity());
    }

    @Test
    public void testExpectContinue() {
        final BasicHttpEntityEnclosingRequest request = new BasicHttpEntityEnclosingRequest("GET", "/");
        Assert.assertFalse(request.expectContinue());
        request.addHeader("Expect", "100-Continue");
        Assert.assertTrue(request.expectContinue());
    }

}