yang/yang-data-codec-xml/src/test/java/org/opendaylight/yangtools/yang/data/codec/xml/Bug8745Test.java

   1 /*
   2  * Copyright (c) 2017 Pantheon Technologies s.r.o. and others. All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8
   9 package org.opendaylight.yangtools.yang.data.codec.xml;
  10
  11 import com.google.common.base.Preconditions;
  12 import java.io.IOException;
  13 import java.io.InputStream;
  14 import java.io.StringWriter;
  15 import javax.xml.stream.XMLInputFactory;
  16 import javax.xml.stream.XMLOutputFactory;
  17 import javax.xml.stream.XMLStreamReader;
  18 import javax.xml.stream.XMLStreamWriter;
  19 import javax.xml.transform.OutputKeys;
  20 import javax.xml.transform.Transformer;
  21 import javax.xml.transform.TransformerException;
  22 import javax.xml.transform.TransformerFactory;
  23 import javax.xml.transform.TransformerFactoryConfigurationError;
  24 import javax.xml.transform.dom.DOMResult;
  25 import javax.xml.transform.dom.DOMSource;
  26 import javax.xml.transform.stream.StreamResult;
  27 import org.custommonkey.xmlunit.Diff;
  28 import org.custommonkey.xmlunit.XMLAssert;
  29 import org.custommonkey.xmlunit.XMLUnit;
  30 import org.junit.Test;
  31 import org.opendaylight.yangtools.util.xml.UntrustedXML;
  32 import org.opendaylight.yangtools.yang.common.QName;
  33 import org.opendaylight.yangtools.yang.data.api.schema.stream.NormalizedNodeStreamWriter;
  34 import org.opendaylight.yangtools.yang.model.api.ContainerSchemaNode;
  35 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
  36 import org.opendaylight.yangtools.yang.model.api.SchemaPath;
  37 import org.opendaylight.yangtools.yang.model.util.SchemaContextUtil;
  38 import org.opendaylight.yangtools.yang.test.util.YangParserTestUtils;
  39 import org.w3c.dom.Document;
  40 import org.w3c.dom.Node;
  41 import org.xml.sax.SAXException;
  42
  43 public class Bug8745Test {
  44
  45     @Test
  46     public void testParsingAttributes() throws Exception {
  47         final SchemaContext schemaContext = YangParserTestUtils.parseYangSource("/bug8745/foo.yang");
  48         final QName contWithAttributes = QName.create("foo", "1970-01-01", "cont-with-attributes");
  49         final ContainerSchemaNode contWithAttr = (ContainerSchemaNode) SchemaContextUtil.findDataSchemaNode(
  50                 schemaContext, SchemaPath.create(true, contWithAttributes));
  51
  52         final Document doc = loadDocument("/bug8745/foo.xml");
  53
  54         final DOMResult domResult = new DOMResult(UntrustedXML.newDocumentBuilder().newDocument());
  55
  56         final XMLOutputFactory outputfactory = XMLOutputFactory.newInstance();
  57         outputfactory.setProperty(XMLOutputFactory.IS_REPAIRING_NAMESPACES, Boolean.TRUE);
  58
  59         final XMLStreamWriter xmlStreamWriter = outputfactory.createXMLStreamWriter(domResult);
  60
  61         final NormalizedNodeStreamWriter streamWriter = XMLStreamNormalizedNodeStreamWriter.create(
  62                 xmlStreamWriter, schemaContext);
  63
  64         final InputStream resourceAsStream = Bug8745Test.class.getResourceAsStream(
  65                 "/bug8745/foo.xml");
  66         final XMLInputFactory inputFactory = XMLInputFactory.newInstance();
  67         final XMLStreamReader reader = inputFactory.createXMLStreamReader(resourceAsStream);
  68
  69         final XmlParserStream xmlParser = XmlParserStream.create(streamWriter, schemaContext, contWithAttr);
  70         xmlParser.parse(reader);
  71
  72         XMLUnit.setIgnoreWhitespace(true);
  73         XMLUnit.setNormalize(true);
  74
  75         final String expectedXml = toString(doc.getDocumentElement());
  76         final String serializedXml = toString(domResult.getNode());
  77         final Diff diff = new Diff(expectedXml, serializedXml);
  78
  79         XMLAssert.assertXMLEqual(diff, true);
  80     }
  81
  82     private static Document loadDocument(final String xmlPath) throws IOException, SAXException {
  83         final InputStream resourceAsStream = NormalizedNodesToXmlTest.class.getResourceAsStream(xmlPath);
  84         final Document currentConfigElement = readXmlToDocument(resourceAsStream);
  85         Preconditions.checkNotNull(currentConfigElement);
  86         return currentConfigElement;
  87     }
  88
  89     private static Document readXmlToDocument(final InputStream xmlContent) throws IOException, SAXException {
  90         final Document doc = UntrustedXML.newDocumentBuilder().parse(xmlContent);
  91         doc.getDocumentElement().normalize();
  92         return doc;
  93     }
  94
  95     private static String toString(final Node xml) {
  96         try {
  97             final Transformer transformer = TransformerFactory.newInstance().newTransformer();
  98             transformer.setOutputProperty(OutputKeys.INDENT, "yes");
  99             transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "4");
 100
 101             final StreamResult result = new StreamResult(new StringWriter());
 102             final DOMSource source = new DOMSource(xml);
 103             transformer.transform(source, result);
 104
 105             return result.getWriter().toString();
 106         } catch (IllegalArgumentException | TransformerFactoryConfigurationError | TransformerException e) {
 107             throw new RuntimeException("Unable to serialize xml element " + xml, e);
 108         }
 109     }
 110 }