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/*
* Copyright 1999-2004 The Apache Software Foundation.
*
* Licensed 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 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 junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;
import org.apache.fop.apps.Driver;
import org.apache.fop.render.pdf.PDFRenderer;
import org.apache.fop.util.DigestFilter;
import org.xml.sax.InputSource;
/**
* 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 extends TestCase {
protected SAXParserFactory parserFactory;
public static Test suite() {
TestSuite suite = new TestSuite(GenericFOPTestCase.class);
suite.setName("Fop regression tests");
return suite;
}
/**
* Constructor for FopTest.
* @param name the name of the test suite
*/
public GenericFOPTestCase(String name) {
super(name);
}
/* (non-Javadoc)
* @see junit.framework.TestCase#setUp()
*/
protected void setUp() throws Exception {
parserFactory = SAXParserFactory.newInstance();
parserFactory.setNamespaceAware(true);
}
public final 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 {
PDFRenderer renderer = new PDFRenderer();
renderer.setCreationDate(new Date(10000));
MessageDigest outDigest = MessageDigest.getInstance("MD5");
ByteArrayOutputStream outBytes = new ByteArrayOutputStream();
DigestOutputStream out =
new DigestOutputStream(new ByteArrayOutputStream(), outDigest);
Driver driver = new Driver();
driver.setRenderer(renderer);
driver.setOutputStream(out);
InputSource source = new InputSource(new StringReader(fo));
DigestFilter filter = new DigestFilter("MD5");
filter.setParent(parserFactory.newSAXParser().getXMLReader());
driver.render(filter, 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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