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/*
* 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.
*/
/* $Id$ */
package org.apache.fop.pdf;
import static org.junit.Assert.assertArrayEquals;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import org.junit.Before;
import org.junit.Test;
public class PDFStreamTestCase {
private PDFStream stream;
@Before
public void createStream() {
stream = new PDFStream();
stream.setObjectNumber(1);
PDFDocument pdfDocument = new PDFDocument("Apache FOP");
stream.setDocument(pdfDocument);
}
@Test
public void testFilterSetup() {
testGetFilterList();
testSetupFilterList();
}
private void testGetFilterList() {
PDFFilterList filterList = stream.getFilterList();
assertFalse(filterList.isInitialized());
assertEquals(0, filterList.getFilters().size());
}
private void testSetupFilterList() {
stream.setupFilterList();
PDFFilterList filterList = stream.getFilterList();
assertTrue(filterList.isInitialized());
assertEquals(1, filterList.getFilters().size());
PDFFilter filter = filterList.getFilters().get(0);
assertEquals("/FlateDecode", filter.getName());
}
@Test
public void customFilter() {
PDFFilterList filters = stream.getFilterList();
filters.addFilter("null");
assertTrue(filters.isInitialized());
assertEquals(1, filters.getFilters().size());
PDFFilter filter = filters.getFilters().get(0);
assertEquals("", filter.getName());
}
@Test
public void testStream() throws IOException {
PDFFilterList filters = stream.getFilterList();
filters.addFilter("null");
byte[] bytes = createSampleData();
stream.setData(bytes);
ByteArrayOutputStream actual = new ByteArrayOutputStream();
stream.outputRawStreamData(actual);
assertArrayEquals(bytes, actual.toByteArray());
}
@Test
public void testEncodeStream() throws IOException {
PDFFilterList filters = stream.getFilterList();
filters.addFilter("null");
byte[] bytes = createSampleData();
stream.setData(bytes);
ByteArrayOutputStream actual = new ByteArrayOutputStream();
StreamCache streamCache = stream.encodeStream();
streamCache.outputContents(actual);
assertArrayEquals(bytes, actual.toByteArray());
}
@Test
public void testEncodeAndWriteStream() throws IOException {
PDFFilterList filters = stream.getFilterList();
filters.addFilter("null");
byte[] bytes = createSampleData();
stream.setData(bytes);
ByteArrayOutputStream actual = new ByteArrayOutputStream();
PDFNumber number = new PDFNumber();
stream.encodeAndWriteStream(actual, number);
assertArrayEquals(createSampleStreamData(), actual.toByteArray());
}
private byte[] createSampleData() {
byte[] bytes = new byte[10];
for (int i = 0; i < 10; i++) {
bytes[i] = (byte) i;
}
return bytes;
}
private byte[] createSampleStreamData() throws IOException {
ByteArrayOutputStream stream = new ByteArrayOutputStream();
stream.write("\nstream\n".getBytes("US-ASCII"));
stream.write(createSampleData());
stream.write("\nendstream".getBytes("US-ASCII"));
return stream.toByteArray();
}
}
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