Java tutorial
/* * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file 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 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.apache.sanselan; import java.io.File; import java.io.IOException; import org.apache.commons.io.FilenameUtils; public class SanselanGuessFormatTest extends SanselanTest { public static final String BMP_IMAGE_FILE = "bmp\\1\\Oregon Scientific DS6639 - DSC_0307 - small.bmp"; public static final String PNG_IMAGE_FILE = "png\\1\\Oregon Scientific DS6639 - DSC_0307 - small.png"; public static final String GIF_IMAGE_FILE = "gif\\1\\Oregon Scientific DS6639 - DSC_0307 - small.gif"; public static final String ICNS_IMAGE_FILE = "icns\\1\\poedit48x48.icns"; public static final String ICO_IMAGE_FILE = "ico\\1\\Oregon Scientific DS6639 - DSC_0307 - small.ico"; public static final String TIFF_IMAGE_FILE = "tiff\\1\\Oregon Scientific DS6639 - DSC_0307 - small.tif"; public static final String JPEG_IMAGE_FILE = "jpg\\1\\Oregon Scientific DS6639 - DSC_0307 - small.jpg"; public static final String PSD_IMAGE_FILE = "psd\\1\\Oregon Scientific DS6639 - DSC_0307 - small.psd"; public static final String PBM_IMAGE_FILE = "pxm\\1\\Oregon Scientific DS6639 - DSC_0307 - small.pbm"; public static final String PGM_IMAGE_FILE = "pxm\\1\\Oregon Scientific DS6639 - DSC_0307 - small.pgm"; public static final String PPM_IMAGE_FILE = "pxm\\1\\Oregon Scientific DS6639 - DSC_0307 - small.ppm"; public static final String TGA_IMAGE_FILE = "tga\\1\\Oregon Scientific DS6639 - DSC_0307 - small.tga"; public void testGuess_all() throws IOException, ImageReadException { testGuess(ImageFormat.IMAGE_FORMAT_PNG, PNG_IMAGE_FILE); testGuess(ImageFormat.IMAGE_FORMAT_GIF, GIF_IMAGE_FILE); testGuess(ImageFormat.IMAGE_FORMAT_ICNS, ICNS_IMAGE_FILE); // TODO(cmchen): add ability to sniff ICOs if possible. // testGuess(ImageFormat.IMAGE_FORMAT_ICO, ICO_IMAGE_FILE); testGuess(ImageFormat.IMAGE_FORMAT_TIFF, TIFF_IMAGE_FILE); testGuess(ImageFormat.IMAGE_FORMAT_JPEG, JPEG_IMAGE_FILE); testGuess(ImageFormat.IMAGE_FORMAT_BMP, BMP_IMAGE_FILE); testGuess(ImageFormat.IMAGE_FORMAT_PSD, PSD_IMAGE_FILE); testGuess(ImageFormat.IMAGE_FORMAT_PBM, PBM_IMAGE_FILE); testGuess(ImageFormat.IMAGE_FORMAT_PGM, PGM_IMAGE_FILE); testGuess(ImageFormat.IMAGE_FORMAT_PPM, PPM_IMAGE_FILE); // TODO(cmchen): add ability to sniff TGAs if possible. // testGuess(ImageFormat.IMAGE_FORMAT_TGA, TGA_IMAGE_FILE); // TODO(cmchen): Add test images for these formats. // testGuess(ImageFormat.IMAGE_FORMAT_PNM, PNM_IMAGE_FILE); // testGuess(ImageFormat.IMAGE_FORMAT_JBIG2, JBIG2_IMAGE_FILE); } public static final String UNKNOWN_IMAGE_FILE = "jpg\\1\\info.txt"; public void testGuess_unknown() throws IOException, ImageReadException { testGuess(ImageFormat.IMAGE_FORMAT_UNKNOWN, UNKNOWN_IMAGE_FILE); } public void testGuess(ImageFormat expectedFormat, String imagePath) throws IOException, ImageReadException { imagePath = FilenameUtils.separatorsToSystem(imagePath); File imageFile = new File(TEST_IMAGE_FOLDER, imagePath); assertTrue(imageFile.exists()); assertTrue(imageFile.isFile()); ImageFormat guessedFormat = Sanselan.guessFormat(imageFile); assertNotNull(guessedFormat); assertEquals(guessedFormat, expectedFormat); } }