ImageUtilsTest.java

/**
 * The MIT License
 *
 * Copyright (C) 2007 Asterios Raptis
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
package de.alpharogroup.swing.img;

import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;

import javax.imageio.ImageIO;

import net.lingala.zip4j.core.ZipFile;
import net.lingala.zip4j.model.ZipParameters;
import net.lingala.zip4j.util.Zip4jConstants;

import org.imgscalr.Scalr;
import org.testng.AssertJUnit;
import org.testng.annotations.Test;

import de.alpharogroup.email.messages.Mimetypes;
import de.alpharogroup.file.search.PathFinder;

/**
 * The Class ImageUtilsTest.
 */
public class ImageUtilsTest
{

	/**
	 * Test get resized.
	 *
	 * @throws IOException
	 *             Signals that an I/O exception has occurred.
	 */
	@Test(enabled = false)
	public void testGetResized() throws IOException
	{
		final File hImg = PathFinder.getRelativePath(PathFinder.getSrcTestResourcesDir(), "img",
			"xmas", "bell.png");
		String extension = Mimetypes.getExtension(hImg);
		extension = Mimetypes.getExtension(hImg.getName());
		final BufferedImage horizontalImg = ImageIO.read(hImg);
		final BufferedImage result = ImageUtils.getResized(horizontalImg, Scalr.Method.SPEED,
			Scalr.Mode.FIT_EXACT, extension, horizontalImg.getWidth(), horizontalImg.getHeight());

		final File verticalImg = PathFinder.getRelativePath(PathFinder.getSrcTestResourcesDir(),
			"img", "xmas", "resultImg." + extension);
		ImageIO.write(result, extension, verticalImg);
	}


	/**
	 * Test resize.
	 *
	 * @throws IOException
	 *             Signals that an I/O exception has occurred.
	 */
	@Test(enabled = false)
	public void testResize() throws IOException
	{
		String filenameprefix = "bell";
		String ext = "png";
		File hImg = PathFinder.getRelativePath(PathFinder.getSrcTestResourcesDir(), "img", "xmas",
			filenameprefix + "." + ext);
		String extension = Mimetypes.getExtension(hImg);
		extension = Mimetypes.getExtension(hImg.getName());
		BufferedImage horizontalImg = ImageIO.read(hImg);
		byte[] resized = ImageUtils.resize(horizontalImg, Scalr.Method.ULTRA_QUALITY,
			Scalr.Mode.FIT_EXACT, extension, horizontalImg.getWidth() / 2,
			horizontalImg.getHeight() / 2);
		BufferedImage result = ImageUtils.read(resized);
		File verticalImg = PathFinder.getRelativePath(PathFinder.getSrcTestResourcesDir(), "img",
			"xmas", "resultImg." + extension);
		ImageIO.write(result, extension, verticalImg);
		AssertJUnit.assertTrue("original image size should be greater than the resulted.",
			verticalImg.length() < hImg.length());

		filenameprefix = "horizontalImg";
		ext = "jpg";

		final int scale = 2;
		hImg = PathFinder.getRelativePath(PathFinder.getSrcTestResourcesDir(), "img", "xmas",
			filenameprefix + "." + ext);
		extension = Mimetypes.getExtension(hImg);
		extension = Mimetypes.getExtension(hImg.getName());
		horizontalImg = ImageIO.read(hImg);
		resized = ImageUtils.resize(horizontalImg, Scalr.Method.ULTRA_QUALITY,
			Scalr.Mode.FIT_EXACT, extension, horizontalImg.getWidth() / scale,
			horizontalImg.getHeight() / scale);
		result = ImageUtils.read(resized);
		verticalImg = PathFinder.getRelativePath(PathFinder.getSrcTestResourcesDir(), "img",
			"xmas", "resultImg." + extension);
		ImageIO.write(result, extension, verticalImg);
		System.out.println("Length:" + verticalImg.length());

		extension = Mimetypes.getExtension(verticalImg);
		extension = Mimetypes.getExtension(verticalImg.getName());
		final BufferedImage backToOriginalSize = ImageIO.read(verticalImg);
		resized = ImageUtils.resize(backToOriginalSize, Scalr.Method.ULTRA_QUALITY,
			Scalr.Mode.FIT_EXACT, extension, backToOriginalSize.getWidth() * scale,
			backToOriginalSize.getHeight() * scale);
		result = ImageUtils.read(resized);
		verticalImg = PathFinder.getRelativePath(PathFinder.getSrcTestResourcesDir(), "img",
			"xmas", filenameprefix + "_backToOriginalSizeImg." + extension);
		ImageIO.write(result, extension, verticalImg);
		System.out.println("Length:" + verticalImg.length());
	}

	/**
	 * Test weave.
	 *
	 * @throws IOException
	 *             Signals that an I/O exception has occurred.
	 */
	@Test(enabled = true)
	public void testWeave() throws IOException
	{
		final String filenameprefix = "bell";
		final String ext = "png";
		final File hImg = PathFinder.getRelativePath(PathFinder.getSrcTestResourcesDir(), "img",
			"xmas", filenameprefix + "." + ext);

		final BufferedImage horizontalImg = ImageIO.read(hImg);
		final String expected = "foo bar";
		ImageUtils.weaveInto(horizontalImg, expected);
		final String actual = ImageUtils.unweaveFrom(horizontalImg);
		AssertJUnit.assertEquals(expected, actual);
	}

	/**
	 * Test zip.
	 *
	 * @throws Exception
	 *             the exception
	 */
	@Test(enabled = true)
	public void testZip() throws Exception
	{
		final String filenameprefix = "bell";
		final String ext = "png";
		final File hImg = PathFinder.getRelativePath(PathFinder.getSrcTestResourcesDir(), "img",
			"xmas", filenameprefix + "." + ext);

		final File imgDir = PathFinder.getRelativePath(PathFinder.getSrcTestResourcesDir(), "img",
			"xmas");

		final ZipFile zipFile4j = new ZipFile(imgDir.getAbsolutePath() + File.separator
			+ "testZip.zip");
		// Initiate Zip Parameters which define various properties such
		// as compression method, etc.
		final ZipParameters parameters = new ZipParameters();

		// set compression method to store compression
		parameters.setCompressionMethod(Zip4jConstants.COMP_DEFLATE);

		// Set the compression level
		parameters.setCompressionLevel(Zip4jConstants.DEFLATE_LEVEL_ULTRA);

		// Add folder to the zip file
		zipFile4j.addFile(hImg, parameters);

	}

}