From 6025b6016517c6d898d8957d1d7e03ba71431912 Mon Sep 17 00:00:00 2001
From: tknall <tknall@7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c>
Date: Fri, 1 Dec 2006 12:20:24 +0000
Subject: Initial import of release 2.2.

git-svn-id: https://joinup.ec.europa.eu/svn/pdf-as/trunk@4 7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c
---
 src/main/java/test/pdfbox/filter/TestFilters.java | 182 ++++++++++++++++++++++
 1 file changed, 182 insertions(+)
 create mode 100644 src/main/java/test/pdfbox/filter/TestFilters.java

(limited to 'src/main/java/test/pdfbox/filter/TestFilters.java')

diff --git a/src/main/java/test/pdfbox/filter/TestFilters.java b/src/main/java/test/pdfbox/filter/TestFilters.java
new file mode 100644
index 0000000..db124eb
--- /dev/null
+++ b/src/main/java/test/pdfbox/filter/TestFilters.java
@@ -0,0 +1,182 @@
+/**
+ * Copyright (c) 2003-2004, www.pdfbox.org
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. Neither the name of pdfbox; nor the names of its
+ *    contributors may be used to endorse or promote products derived from this
+ *    software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * http://www.pdfbox.org
+ *
+ */
+package test.pdfbox.filter;
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.File;
+import java.io.FileInputStream;
+
+import java.util.Collection;
+import java.util.Iterator;
+
+import junit.framework.Test;
+import junit.framework.TestCase;
+import junit.framework.TestSuite;
+
+import org.apache.log4j.Logger;
+
+import org.pdfbox.cos.COSDictionary;
+
+import org.pdfbox.filter.DCTFilter;
+import org.pdfbox.filter.CCITTFaxDecodeFilter;
+import org.pdfbox.filter.Filter;
+import org.pdfbox.filter.FilterManager;
+import org.pdfbox.filter.RunLengthDecodeFilter;
+
+/**
+ * This will test all of the filters in the PDFBox system.
+ *
+ * @author Ben Litchfield (ben@csh.rit.edu)
+ * @version $Revision: 1.5 $
+ */
+public class TestFilters extends TestCase
+{
+    private static Logger log = Logger.getLogger(TestFilters.class);
+
+    private static final int BUFFER_SIZE = 2048;
+    private static final COSDictionary EMPTY_DICTIONARY = new COSDictionary();
+
+    /**
+     * Constructor.
+     *
+     * @param name The name of the test to run.
+     */
+    public TestFilters( String name )
+    {
+        super( name );
+    }
+
+    /**
+     * This will get the suite of test that this class holds.
+     *
+     * @return All of the tests that this class holds.
+     */
+    public static Test suite()
+    {
+        return new TestSuite( TestFilters.class );
+    }
+
+    /**
+     * This will test all of the filters in the system.
+     *
+     * @throws IOException If there is an exception while encoding.
+     */
+    public void testFilters() throws IOException
+    {
+        FilterManager manager = new FilterManager();
+        Collection filters = manager.getFilters();
+
+        Iterator filterIter = filters.iterator();
+        while( filterIter.hasNext() )
+        {
+            long start = System.currentTimeMillis();
+            Filter filter = (Filter)filterIter.next();
+            if( !(filter instanceof DCTFilter ||
+                  filter instanceof CCITTFaxDecodeFilter ||
+                  filter instanceof RunLengthDecodeFilter))
+            {
+                checkFilter( new File( "classes" ), filter );
+                long stop = System.currentTimeMillis();
+                System.out.println( "Time for filter " + filter.getClass().getName() + "=" + (stop-start) );
+            }
+        }
+    }
+
+    /**
+     * This will check the filter.
+     *
+     * @param file The file or directory to test.
+     * @param filter The filter to check.
+     *
+     * @throws IOException If there is an exception while encoding.
+     */
+    private void checkFilter( File file, Filter filter ) throws IOException
+    {
+        if( file.isDirectory() )
+        {
+            File[] subFiles = file.listFiles();
+            for( int i=0; i<subFiles.length; i++ )
+            {
+                checkFilter( subFiles[i], filter );
+            }
+        }
+        else
+        {
+            log.debug("Checking filter: " + filter + ", with file: " + file.getAbsolutePath());
+            ByteArrayOutputStream output = new ByteArrayOutputStream();
+
+            ByteArrayOutputStream encoded = new ByteArrayOutputStream();
+            ByteArrayOutputStream decoded = new ByteArrayOutputStream();
+            FileInputStream fin = new FileInputStream( file );
+            int amountRead = 0;
+            byte[] buffer = new byte[ BUFFER_SIZE ];
+            while( (amountRead = fin.read( buffer, 0, BUFFER_SIZE )) != -1 )
+            {
+                output.write( buffer, 0, amountRead );
+            }
+            fin.close();
+            byte[] original = output.toByteArray();
+            filter.encode( new ByteArrayInputStream( original ), encoded, EMPTY_DICTIONARY );
+            filter.decode( new ByteArrayInputStream( encoded.toByteArray() ), decoded, EMPTY_DICTIONARY );
+
+            cmpArray( original, decoded.toByteArray(), filter, file );
+        }
+    }
+
+    /**
+     * This will compare a couple of arrays and fail if they do not match.
+     *
+     * @param firstArray The first array.
+     * @param secondArray The second array.
+     * @param filter The filter that did the encoding.
+     * @param file The file that was encoded.
+     */
+    private void cmpArray( byte[] firstArray, byte[] secondArray, Filter filter, File file )
+    {
+        String fileMsg = filter.getClass().getName() + " " + file.getAbsolutePath();
+        if( firstArray.length != secondArray.length )
+        {
+            fail( "The array lengths do not match for " + fileMsg +
+                  ", firstArray length was: " + firstArray.length +
+                  ", secondArray length was: " + secondArray.length);
+        }
+
+        for( int i=0; i<firstArray.length; i++ )
+        {
+            if( firstArray[i] != secondArray[i] )
+            {
+                fail( "Array data does not match " + fileMsg );
+            }
+        }
+    }
+}
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