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| /* |
| * ExifReaderTest.java |
| * |
| * Test class written by Drew Noakes. |
| * |
| * This is public domain software - that is, you can do whatever you want |
| * with it, and include it software that is licensed under the GNU or the |
| * BSD license, or whatever other licence you choose, including proprietary |
| * closed source licenses. I do ask that you leave this header in tact. |
| * |
| * If you make modifications to this code that you think would benefit the |
| * wider community, please send me a copy and I'll post it on my site. |
| * |
| * If you make use of this code, I'd appreciate hearing about it. |
| * drew@drewnoakes.com |
| * Latest version of this software kept at |
| * http://drewnoakes.com/ |
| * |
| * Created by dnoakes on 26-Oct-2002 19:15:16 using IntelliJ IDEA. |
| */ |
| package com.drew.metadata.exif.test; |
| |
| import com.drew.lang.Rational; |
| import com.drew.metadata.Directory; |
| import com.drew.metadata.Metadata; |
| import com.drew.metadata.exif.ExifDescriptor; |
| import com.drew.metadata.exif.ExifDirectory; |
| import com.drew.metadata.exif.ExifReader; |
| import junit.framework.TestCase; |
| |
| import java.io.File; |
| |
| /** |
| * JUnit test case for class ExifDescriptor. |
| * @author Drew Noakes http://drewnoakes.com |
| */ |
| public class ExifDescriptorTest extends TestCase |
| { |
| public ExifDescriptorTest(String s) |
| { |
| super(s); |
| } |
| |
| public void testXResolutionDescription() throws Exception |
| { |
| ExifDirectory directory = new ExifDirectory(); |
| directory.setRational(ExifDirectory.TAG_X_RESOLUTION, new Rational(72, 1)); |
| // 2 is for 'Inch' |
| directory.setInt(ExifDirectory.TAG_RESOLUTION_UNIT, 2); |
| ExifDescriptor descriptor = new ExifDescriptor(directory); |
| assertEquals("72 dots per inch", descriptor.getDescription(ExifDirectory.TAG_X_RESOLUTION)); |
| } |
| |
| public void testYResolutionDescription() throws Exception |
| { |
| ExifDirectory directory = new ExifDirectory(); |
| directory.setRational(ExifDirectory.TAG_Y_RESOLUTION, new Rational(50, 1)); |
| // 3 is for 'cm' |
| directory.setInt(ExifDirectory.TAG_RESOLUTION_UNIT, 3); |
| ExifDescriptor descriptor = new ExifDescriptor(directory); |
| assertEquals("50 dots per cm", descriptor.getDescription(ExifDirectory.TAG_Y_RESOLUTION)); |
| } |
| |
| public void testUserCommentDescription_EmptyEncoding() throws Exception |
| { |
| byte[] commentBytes = "\0\0\0\0\0\0\0\0This is a comment".getBytes(); |
| ExifDirectory directory = new ExifDirectory(); |
| directory.setByteArray(ExifDirectory.TAG_USER_COMMENT, commentBytes); |
| ExifDescriptor descriptor = new ExifDescriptor(directory); |
| assertEquals("This is a comment", descriptor.getDescription(ExifDirectory.TAG_USER_COMMENT)); |
| } |
| |
| public void testUserCommentDescription_AsciiHeaderExtendedAsciiEncoding() throws Exception |
| { |
| byte[] commentBytes = "ASCII\0\0This is a comment with extended characters æøå ÆØÅ".getBytes(); |
| ExifDirectory directory = new ExifDirectory(); |
| directory.setByteArray(ExifDirectory.TAG_USER_COMMENT, commentBytes); |
| ExifDescriptor descriptor = new ExifDescriptor(directory); |
| assertEquals("This is a comment with extended characters æøå ÆØÅ", descriptor.getDescription(ExifDirectory.TAG_USER_COMMENT)); |
| } |
| |
| public void testUserCommentDescription_AsciiHeaderAsciiEncoding() throws Exception |
| { |
| byte[] commentBytes = "ASCII\0\0This is a comment".getBytes(); |
| ExifDirectory directory = new ExifDirectory(); |
| directory.setByteArray(ExifDirectory.TAG_USER_COMMENT, commentBytes); |
| ExifDescriptor descriptor = new ExifDescriptor(directory); |
| assertEquals("This is a comment", descriptor.getDescription(ExifDirectory.TAG_USER_COMMENT)); |
| } |
| |
| public void testUserCommentDescription_BlankAscii() throws Exception |
| { |
| byte[] commentBytes = "ASCII\0\0\0 ".getBytes(); |
| ExifDirectory directory = new ExifDirectory(); |
| directory.setByteArray(ExifDirectory.TAG_USER_COMMENT, commentBytes); |
| ExifDescriptor descriptor = new ExifDescriptor(directory); |
| assertEquals("", descriptor.getDescription(ExifDirectory.TAG_USER_COMMENT)); |
| } |
| |
| public void testUserCommentDescription_ZeroLengthAscii1() throws Exception |
| { |
| // the 10-byte encoding region is only partially full |
| byte[] commentBytes = "ASCII\0\0\0".getBytes(); |
| ExifDirectory directory = new ExifDirectory(); |
| directory.setByteArray(ExifDirectory.TAG_USER_COMMENT, commentBytes); |
| ExifDescriptor descriptor = new ExifDescriptor(directory); |
| assertEquals("ASCII", descriptor.getDescription(ExifDirectory.TAG_USER_COMMENT)); |
| } |
| |
| public void testUserCommentDescription_ZeroLengthAscii2() throws Exception |
| { |
| // fill the 10-byte encoding region |
| byte[] commentBytes = "ASCII\0\0\0\0\0".getBytes(); |
| ExifDirectory directory = new ExifDirectory(); |
| directory.setByteArray(ExifDirectory.TAG_USER_COMMENT, commentBytes); |
| ExifDescriptor descriptor = new ExifDescriptor(directory); |
| assertEquals("", descriptor.getDescription(ExifDirectory.TAG_USER_COMMENT)); |
| } |
| |
| public void testUnicodeComment_ActualBytes() throws Exception |
| { |
| byte[] commentBytes = new byte[] { 85, 78, 73, 67, 79, 68, 69, 0, 84, 0, 104, 0, 105, 0, 115, 0, 32, 0, 109, 0, 97, 0, 114, 0, 109, 0, 111, 0, 116, 0, 32, 0, 105, 0, 115, 0, 32, 0, 103, 0, 101, 0, 116, 0, 116, 0, 105, 0, 110, 0, 103, 0, 32, 0, 99, 0, 108, 0, 111, 0, 115, 0, 101, 0, 46, 0, 46, 0, 46, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0, 32, 0 }; |
| ExifDirectory directory = new ExifDirectory(); |
| directory.setByteArray(ExifDirectory.TAG_USER_COMMENT, commentBytes); |
| ExifDescriptor descriptor = new ExifDescriptor(directory); |
| assertEquals("This marmot is getting close...", descriptor.getDescription(ExifDirectory.TAG_USER_COMMENT)); |
| } |
| |
| public void testUnicodeComment_Ascii() throws Exception |
| { |
| byte[] commentBytes = new byte[] { 65, 83, 67, 73, 73, 0, 0, 0, 73, 32, 97, 109, 32, 97, 32, 99, 111, 109, 109, 101, 110, 116, 46, 32, 89, 101, 121, 46, 0 }; |
| ExifDirectory directory = new ExifDirectory(); |
| directory.setByteArray(ExifDirectory.TAG_USER_COMMENT, commentBytes); |
| ExifDescriptor descriptor = new ExifDescriptor(directory); |
| assertEquals("I am a comment. Yey.", descriptor.getDescription(ExifDirectory.TAG_USER_COMMENT)); |
| } |
| |
| public void testWindowsXpFields() throws Exception |
| { |
| String fileName = "src/com/drew/metadata/exif/test/windowsXpFields.jpg"; |
| Metadata metadata = new ExifReader(new File(fileName)).extract(); |
| Directory directory = metadata.getDirectory(ExifDirectory.class); |
| ExifDescriptor descriptor = new ExifDescriptor(directory); |
| assertEquals("Testing artist", descriptor.getDescription(ExifDirectory.TAG_WIN_AUTHOR)); |
| assertEquals("Testing comments", descriptor.getDescription(ExifDirectory.TAG_WIN_COMMENT)); |
| assertEquals("Testing keywords", descriptor.getDescription(ExifDirectory.TAG_WIN_KEYWORDS)); |
| assertEquals("Testing subject", descriptor.getDescription(ExifDirectory.TAG_WIN_SUBJECT)); |
| assertEquals("Testing title", descriptor.getDescription(ExifDirectory.TAG_WIN_TITLE)); |
| } |
| } |