TestBufferedHttpEntity.java

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 * to you under the Apache License, Version 2.0 (the
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package org.apache.ogt.http.entity;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;

import junit.framework.TestCase;

import org.apache.ogt.http.entity.BufferedHttpEntity;
import org.apache.ogt.http.entity.ByteArrayEntity;
import org.apache.ogt.http.entity.InputStreamEntity;
import org.apache.ogt.http.protocol.HTTP;

/**
 * Unit tests for {@link BufferedHttpEntity}.
 *
 */
public class TestBufferedHttpEntity extends TestCase {

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

    public void testBufferingEntity() throws Exception {
        byte[] bytes = "Message content".getBytes(HTTP.US_ASCII);
        InputStreamEntity httpentity = new InputStreamEntity(new ByteArrayInputStream(bytes), -1);
        BufferedHttpEntity bufentity = new BufferedHttpEntity(httpentity);
        assertEquals(bytes.length, bufentity.getContentLength());
        assertTrue(bufentity.isRepeatable());
        assertFalse(bufentity.isChunked());
        assertFalse(bufentity.isStreaming());

        // test if we can obtain contain multiple times
        assertNotNull(bufentity.getContent ());
        assertNotNull(bufentity.getContent ());
    }

    public void testWrappingEntity() throws Exception {
        byte[] bytes = "Message content".getBytes(HTTP.US_ASCII);
        ByteArrayEntity httpentity = new ByteArrayEntity(bytes);
        httpentity.setChunked(true);
        BufferedHttpEntity bufentity = new BufferedHttpEntity(httpentity);
        assertEquals(bytes.length, bufentity.getContentLength());
        assertTrue(bufentity.isRepeatable());
        assertTrue(bufentity.isChunked());
        assertFalse(bufentity.isStreaming());

        // test if we can obtain contain multiple times
        assertNotNull(bufentity.getContent ());
        assertNotNull(bufentity.getContent ());
    }

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

    public void testWriteToBuffered() throws Exception {
        byte[] bytes = "Message content".getBytes(HTTP.US_ASCII);
        InputStreamEntity httpentity = new InputStreamEntity(new ByteArrayInputStream(bytes), -1);
        BufferedHttpEntity bufentity = new BufferedHttpEntity(httpentity);

        ByteArrayOutputStream out = new ByteArrayOutputStream();
        bufentity.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();
        bufentity.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 {
            bufentity.writeTo(null);
            fail("IllegalArgumentException should have been thrown");
        } catch (IllegalArgumentException ex) {
            // expected
        }
    }

    public void testWriteToWrapped() throws Exception {
        byte[] bytes = "Message content".getBytes(HTTP.US_ASCII);
        ByteArrayEntity httpentity = new ByteArrayEntity(bytes);
        BufferedHttpEntity bufentity = new BufferedHttpEntity(httpentity);

        ByteArrayOutputStream out = new ByteArrayOutputStream();
        bufentity.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();
        bufentity.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 {
            bufentity.writeTo(null);
            fail("IllegalArgumentException should have been thrown");
        } catch (IllegalArgumentException ex) {
            // expected
        }
    }

}