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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.layoutengine;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import javax.xml.transform.Result;
import javax.xml.transform.Source;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerConfigurationException;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.sax.SAXResult;
import javax.xml.transform.stream.StreamSource;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;
import org.apache.commons.io.FileUtils;
import org.apache.commons.io.filefilter.AndFileFilter;
import org.apache.commons.io.filefilter.IOFileFilter;
import org.apache.commons.io.filefilter.NameFileFilter;
import org.apache.commons.io.filefilter.NotFileFilter;
import org.apache.commons.io.filefilter.PrefixFileFilter;
import org.apache.commons.io.filefilter.SuffixFileFilter;
import org.apache.commons.io.filefilter.TrueFileFilter;
/**
* Utility class for layout engine tests.
*/
public final class LayoutEngineTestUtils {
private LayoutEngineTestUtils() {
}
private static class FilenameHandler extends DefaultHandler {
private StringBuffer buffer = new StringBuffer(128);
private boolean readingFilename = false;
private List filenames;
public FilenameHandler(List filenames) {
this.filenames = filenames;
}
public void startElement(String namespaceURI, String localName, String qName,
Attributes atts) throws SAXException {
if (qName != null && qName.equals("file")) {
buffer.setLength(0);
readingFilename = true;
} else {
throw new RuntimeException(
"Unexpected element while reading disabled testcase file names: " + qName);
}
}
public void endElement(String namespaceURI, String localName, String qName)
throws SAXException {
if (qName != null && qName.equals("file")) {
readingFilename = false;
filenames.add(buffer.toString());
} else {
throw new RuntimeException(
"Unexpected element while reading disabled testcase file names: " + qName);
}
}
public void characters(char[] ch, int start, int length) throws SAXException {
if (readingFilename) {
buffer.append(ch, start, length);
}
}
}
public static IOFileFilter decorateWithDisabledList(IOFileFilter filter) throws IOException {
String disabled = System.getProperty("fop.layoutengine.disabled");
if (disabled != null && disabled.length() > 0) {
filter = new AndFileFilter(new NotFileFilter(
new NameFileFilter(LayoutEngineTestUtils.readDisabledTestcases(new File(
disabled)))),
filter);
}
return filter;
}
public static String[] readDisabledTestcases(File f) throws IOException {
List lines = new java.util.ArrayList();
Source stylesheet = new StreamSource(
new File("test/layoutengine/disabled-testcase2filename.xsl"));
Source source = new StreamSource(f);
Result result = new SAXResult(new FilenameHandler(lines));
try {
Transformer transformer = TransformerFactory.newInstance().newTransformer(stylesheet);
transformer.transform(source, result);
} catch (TransformerConfigurationException tce) {
throw new RuntimeException(tce.getMessage());
} catch (TransformerException te) {
throw new RuntimeException(te.getMessage());
}
return (String[]) lines.toArray(new String[lines.size()]);
}
/**
* @return a Collection of File instances containing all the test cases set up for processing.
* @throws IOException if there's a problem gathering the list of test files
*/
public static Collection<File[]> getTestFiles() throws IOException {
File mainDir = new File("test/layoutengine");
IOFileFilter filter;
String single = System.getProperty("fop.layoutengine.single");
String startsWith = System.getProperty("fop.layoutengine.starts-with");
if (single != null) {
filter = new NameFileFilter(single);
} else if (startsWith != null) {
filter = new PrefixFileFilter(startsWith);
filter = new AndFileFilter(filter, new SuffixFileFilter(".xml"));
filter = decorateWithDisabledList(filter);
} else {
filter = new SuffixFileFilter(".xml");
filter = decorateWithDisabledList(filter);
}
String testset = System.getProperty("fop.layoutengine.testset");
if (testset == null) {
testset = "standard";
}
Collection<File> files = FileUtils.listFiles(new File(mainDir, testset + "-testcases"),
filter, TrueFileFilter.INSTANCE);
String privateTests = System.getProperty("fop.layoutengine.private");
if ("true".equalsIgnoreCase(privateTests)) {
Collection privateFiles = FileUtils.listFiles(
new File(mainDir, "private-testcases"),
filter, TrueFileFilter.INSTANCE);
files.addAll(privateFiles);
}
Collection<File[]> parametersForJUnit4 = new ArrayList<File[]>();
for (File f : files) {
parametersForJUnit4.add(new File[] { f });
}
return parametersForJUnit4;
}
}
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