org.osaf.cosmo.io.BufferedContentTest.java Source code

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Here is the source code for org.osaf.cosmo.io.BufferedContentTest.java

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/*
 * Copyright 2006 Open Source Applications 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.
 */
package org.osaf.cosmo.io;

import java.io.ByteArrayInputStream;
import java.io.FileInputStream;
import java.util.Random;

import junit.framework.Assert;
import junit.framework.TestCase;

import org.apache.commons.io.IOUtils;

/**
 * Test BufferedContent
 */
public class BufferedContentTest extends TestCase {

    public void testBufferedContent() throws Exception {
        Random random = new Random();

        // 100K test
        byte[] bytes = new byte[1024 * 100];
        random.nextBytes(bytes);

        BufferedContent content = new BufferedContent(new ByteArrayInputStream(bytes));

        Assert.assertTrue(content.getLength() == (1024 * 100));

        // verify streams are the same
        Assert.assertTrue(IOUtils.contentEquals(new ByteArrayInputStream(bytes), content.getInputStream()));
        // verify we can re-consume the same stream
        Assert.assertTrue(IOUtils.contentEquals(new ByteArrayInputStream(bytes), content.getInputStream()));

        // should fit into memory
        Assert.assertTrue(content.getInputStream() instanceof ByteArrayInputStream);

        // should be buffered into file
        content = new BufferedContent(new ByteArrayInputStream(bytes), 1024 * 50);
        Assert.assertTrue(content.getLength() == (1024 * 100));
        Assert.assertTrue(IOUtils.contentEquals(new ByteArrayInputStream(bytes), content.getInputStream()));
        Assert.assertTrue(IOUtils.contentEquals(new ByteArrayInputStream(bytes), content.getInputStream()));

        // should be in a file
        Assert.assertTrue(content.getInputStream() instanceof FileInputStream);
    }
}