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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;
import static org.junit.Assert.fail;
import java.io.ByteArrayOutputStream;
import java.io.StringReader;
import java.security.DigestOutputStream;
import java.security.MessageDigest;
import java.util.Date;
import javax.xml.parsers.SAXParserFactory;
import org.junit.Before;
import org.junit.Test;
import org.xml.sax.InputSource;
import org.apache.fop.apps.FOUserAgent;
import org.apache.fop.apps.Fop;
import org.apache.fop.apps.FopFactory;
import org.apache.fop.apps.MimeConstants;
import org.apache.fop.util.DigestFilter;
/**
* Framework for simple regression testing.
* The testcase reads a control XML file which specifies a FO source,
* a MD5 for the source to help diferentiating failures caused by causal
* source modification from failures caused by regression, a renderer (only
* PDF currently supported) and a MD5 for the result.
*
*/
public final class GenericFOPTestCase {
// configure fopFactory as desired
private FopFactory fopFactory = FopFactory.newInstance();
private SAXParserFactory parserFactory;
@Before
public void setUp() throws Exception {
parserFactory = SAXParserFactory.newInstance();
parserFactory.setNamespaceAware(true);
}
@org.junit.Test
public void testSimple() throws Exception {
final String digestIn = "17bf13298796065f7775db8707133aeb";
final String digestOut = "e2761f51152f6663911e567901596707";
final String fo
= "<fo:root xmlns:fo='http://www.w3.org/1999/XSL/Format'>"
+ " <fo:layout-master-set>"
+ " <fo:simple-page-master master-name='simple'"
+ " page-height='25cm' page-width='20cm'>"
+ " <fo:region-body/>"
+ " </fo:simple-page-master>"
+ " </fo:layout-master-set>"
+ " <fo:page-sequence master-reference='simple'>"
+ " <fo:flow flow-name='xsl-region-body'>"
+ " <fo:block>This is a blind text.</fo:block>"
+ " </fo:flow>"
+ " </fo:page-sequence>"
+ "</fo:root>";
renderPDF(fo, digestIn, digestOut);
}
private String digestToString(byte[] value) {
StringBuffer buffer = new StringBuffer(2 * value.length);
for (int i = 0; i < value.length; i++) {
int val = value[i];
int hi = (val >> 4) & 0xF;
int lo = val & 0xF;
if (hi < 10) {
buffer.append((char) (hi + 0x30));
} else {
buffer.append((char) (hi + 0x61 - 10));
}
if (lo < 10) {
buffer.append((char) (lo + 0x30));
} else {
buffer.append((char) (lo + 0x61 - 10));
}
}
return buffer.toString();
}
private void renderPDF(String fo, String digestIn, String digestOut)
throws Exception {
FOUserAgent foUserAgent = fopFactory.newFOUserAgent();
foUserAgent.setCreationDate(new Date(10000));
MessageDigest outDigest = MessageDigest.getInstance("MD5");
DigestOutputStream out = new DigestOutputStream(new ByteArrayOutputStream(), outDigest);
Fop fop = fopFactory.newFop(MimeConstants.MIME_PDF, foUserAgent, out);
InputSource source = new InputSource(new StringReader(fo));
DigestFilter filter = new DigestFilter("MD5");
filter.setParent(parserFactory.newSAXParser().getXMLReader());
filter.setContentHandler(fop.getDefaultHandler());
filter.parse(source);
String digestInActual = digestToString(filter.getDigestValue());
if (!digestIn.equals(digestInActual)) {
fail("input MD5: was " + digestInActual + ", expected " + digestIn);
}
String digestOutActual = digestToString(outDigest.digest());
if (!digestOut.equals(digestOutActual)) {
fail(
"output MD5: was "
+ digestOutActual
+ ", expected "
+ digestOut);
}
}
}
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