org.eclipse.virgo.bundlor/src/test/java/org/eclipse/virgo/bundlor/util/FileCopyUtilsTests.java

/*******************************************************************************
 * Copyright (c) 2008, 2010 VMware Inc.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *   VMware Inc. - initial contribution
 *******************************************************************************/

package org.eclipse.virgo.bundlor.util;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.StringReader;
import java.io.StringWriter;
import java.util.Arrays;

import org.eclipse.virgo.bundlor.util.FileCopyUtils;

import junit.framework.TestCase;

/**
 * Unit tests for the FileCopyUtils class.
 *
 * @author Juergen Hoeller
 * @since 12.03.2005
 */
public class FileCopyUtilsTests extends TestCase {

	public void testCopyFromInputStream() throws IOException {
		byte[] content = "content".getBytes();
		ByteArrayInputStream in = new ByteArrayInputStream(content);
		ByteArrayOutputStream out = new ByteArrayOutputStream(content.length);
		int count = FileCopyUtils.copy(in, out);
		assertEquals(content.length, count);
		assertTrue(Arrays.equals(content, out.toByteArray()));
	}

	public void testCopyFromByteArray() throws IOException {
		byte[] content = "content".getBytes();
		ByteArrayOutputStream out = new ByteArrayOutputStream(content.length);
		FileCopyUtils.copy(content, out);
		assertTrue(Arrays.equals(content, out.toByteArray()));
	}

	public void testCopyToByteArray() throws IOException {
		byte[] content = "content".getBytes();
		ByteArrayInputStream in = new ByteArrayInputStream(content);
		byte[] result = FileCopyUtils.copyToByteArray(in);
		assertTrue(Arrays.equals(content, result));
	}

	public void testCopyFromReader() throws IOException {
		String content = "content";
		StringReader in = new StringReader(content);
		StringWriter out = new StringWriter();
		int count = FileCopyUtils.copy(in, out);
		assertEquals(content.length(), count);
		assertEquals(content, out.toString());
	}

	public void testCopyFromString() throws IOException {
		String content = "content";
		StringWriter out = new StringWriter();
		FileCopyUtils.copy(content, out);
		assertEquals(content, out.toString());
	}

	public void testCopyToString() throws IOException {
		String content = "content";
		StringReader in = new StringReader(content);
		String result = FileCopyUtils.copyToString(in);
		assertEquals(content, result);
	}

}