TestHttpEntityWrapper.java

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 * 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
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 *   http://www.apache.org/licenses/LICENSE-2.0
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 * Unless required by applicable law or agreed to in writing,
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 * KIND, either express or implied.  See the License for the
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package org.apache.ogt.http.entity;

import java.io.ByteArrayOutputStream;

import junit.framework.TestCase;

import org.apache.ogt.http.entity.HttpEntityWrapper;
import org.apache.ogt.http.entity.StringEntity;
import org.apache.ogt.http.protocol.HTTP;
import org.apache.ogt.http.util.EntityUtils;

/**
 * Unit tests for {@link HttpEntityWrapper}.
 *
 */
public class TestHttpEntityWrapper extends TestCase {

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

    public void testBasics() throws Exception {
        String s = "Message content";
        StringEntity httpentity = new StringEntity(s, HTTP.ISO_8859_1);
        httpentity.setContentType(HTTP.PLAIN_TEXT_TYPE);
        httpentity.setContentEncoding(HTTP.IDENTITY_CODING);
        HttpEntityWrapper wrapped = new HttpEntityWrapper(httpentity);

        assertEquals(httpentity.getContentLength(), wrapped.getContentLength());
        assertEquals(httpentity.getContentType(), wrapped.getContentType());
        assertEquals(httpentity.getContentEncoding(), wrapped.getContentEncoding());
        assertEquals(httpentity.isChunked(), wrapped.isChunked());
        assertEquals(httpentity.isRepeatable(), wrapped.isRepeatable());
        assertEquals(httpentity.isStreaming(), wrapped.isStreaming());
        assertNotNull(wrapped.getContent());
    }

    public void testIllegalConstructor() throws Exception {
        try {
            new HttpEntityWrapper(null);
            fail("IllegalArgumentException should have been thrown");
        } catch (IllegalArgumentException ex) {
            // expected
        }
    }

    public void testWriteTo() throws Exception {
        String s = "Message content";
        byte[] bytes = s.getBytes(HTTP.ISO_8859_1);
        StringEntity httpentity = new StringEntity(s);
        HttpEntityWrapper wrapped = new HttpEntityWrapper(httpentity);

        ByteArrayOutputStream out = new ByteArrayOutputStream();
        wrapped.writeTo(out);
        byte[] bytes2 = out.toByteArray();
        assertNotNull(bytes2);
        assertEquals(bytes.length, bytes2.length);
        for (int i = 0; i < bytes.length; i++) {
            assertEquals(bytes[i], bytes2[i]);
        }

        out = new ByteArrayOutputStream();
        wrapped.writeTo(out);
        bytes2 = out.toByteArray();
        assertNotNull(bytes2);
        assertEquals(bytes.length, bytes2.length);
        for (int i = 0; i < bytes.length; i++) {
            assertEquals(bytes[i], bytes2[i]);
        }

        try {
            wrapped.writeTo(null);
            fail("IllegalArgumentException should have been thrown");
        } catch (IllegalArgumentException ex) {
            // expected
        }
    }

    public void testConsumeContent() throws Exception {
        String s = "Message content";
        StringEntity httpentity = new StringEntity(s);
        HttpEntityWrapper wrapped = new HttpEntityWrapper(httpentity);
        EntityUtils.consume(wrapped);
        EntityUtils.consume(wrapped);
    }

}