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 package org.opendaylight.yangtools.yang.data.codec.xml;
   9
  10 import static java.util.Objects.requireNonNull;
  11
  12 import java.io.IOException;
  13 import java.io.InputStream;
  14 import java.io.StringWriter;
  15 import java.util.Collection;
  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.AfterClass;
  31 import org.junit.BeforeClass;
  32 import org.junit.Test;
  33 import org.junit.runner.RunWith;
  34 import org.junit.runners.Parameterized;
  35 import org.opendaylight.yangtools.util.xml.UntrustedXML;
  36 import org.opendaylight.yangtools.yang.common.QName;
  37 import org.opendaylight.yangtools.yang.data.api.schema.stream.NormalizedNodeStreamWriter;
  38 import org.opendaylight.yangtools.yang.model.api.ContainerSchemaNode;
  39 import org.opendaylight.yangtools.yang.model.api.EffectiveModelContext;
  40 import org.opendaylight.yangtools.yang.test.util.YangParserTestUtils;
  41 import org.w3c.dom.Document;
  42 import org.w3c.dom.Node;
  43 import org.xml.sax.SAXException;
  44
  45 @RunWith(Parameterized.class)
  46 public class Bug8745Test {
  47     @Parameterized.Parameters(name = "{0}")
  48     public static Collection<Object[]> data() {
  49         return TestFactories.junitParameters();
  50     }
  51
  52     private static EffectiveModelContext SCHEMA_CONTEXT;
  53
  54     private final XMLOutputFactory factory;
  55
  56     public Bug8745Test(final String factoryMode, final XMLOutputFactory factory) {
  57         this.factory = factory;
  58     }
  59
  60     @BeforeClass
  61     public static void beforeClass() {
  62         SCHEMA_CONTEXT = YangParserTestUtils.parseYangResource("/bug8745/foo.yang");
  63     }
  64
  65     @AfterClass
  66     public static void afterClass() {
  67         SCHEMA_CONTEXT = null;
  68     }
  69
  70     @Test
  71     public void testParsingAttributes() throws Exception {
  72         final ContainerSchemaNode contWithAttr = (ContainerSchemaNode) SCHEMA_CONTEXT.findDataTreeChild(
  73             QName.create("foo", "cont-with-attributes")).orElseThrow();
  74
  75         final Document doc = loadDocument("/bug8745/foo.xml");
  76         final DOMSource domSource = new DOMSource(doc.getDocumentElement());
  77
  78         final DOMResult domResult = new DOMResult(UntrustedXML.newDocumentBuilder().newDocument());
  79
  80         final XMLStreamWriter xmlStreamWriter = factory.createXMLStreamWriter(domResult);
  81
  82         final NormalizedNodeStreamWriter streamWriter = XMLStreamNormalizedNodeStreamWriter.create(
  83                 xmlStreamWriter, SCHEMA_CONTEXT);
  84
  85         final XMLStreamReader reader = new DOMSourceXMLStreamReader(domSource);
  86         final XmlParserStream xmlParser = XmlParserStream.create(streamWriter, SCHEMA_CONTEXT, contWithAttr);
  87         xmlParser.parse(reader);
  88
  89         XMLUnit.setIgnoreWhitespace(true);
  90         XMLUnit.setNormalize(true);
  91
  92         final String expectedXml = toString(doc.getDocumentElement());
  93         final String serializedXml = toString(domResult.getNode());
  94         final Diff diff = new Diff(expectedXml, serializedXml);
  95
  96         XMLAssert.assertXMLEqual(diff, true);
  97     }
  98
  99     private static Document loadDocument(final String xmlPath) throws IOException, SAXException {
 100         final InputStream resourceAsStream = NormalizedNodesToXmlTest.class.getResourceAsStream(xmlPath);
 101         return requireNonNull(readXmlToDocument(resourceAsStream));
 102     }
 103
 104     private static Document readXmlToDocument(final InputStream xmlContent) throws IOException, SAXException {
 105         final Document doc = UntrustedXML.newDocumentBuilder().parse(xmlContent);
 106         doc.getDocumentElement().normalize();
 107         return doc;
 108     }
 109
 110     private static String toString(final Node xml) {
 111         try {
 112             final Transformer transformer = TransformerFactory.newInstance().newTransformer();
 113             transformer.setOutputProperty(OutputKeys.INDENT, "yes");
 114             transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "4");
 115
 116             final StreamResult result = new StreamResult(new StringWriter());
 117             final DOMSource source = new DOMSource(xml);
 118             transformer.transform(source, result);
 119
 120             return result.getWriter().toString();
 121         } catch (IllegalArgumentException | TransformerFactoryConfigurationError | TransformerException e) {
 122             throw new RuntimeException("Unable to serialize xml element " + xml, e);
 123         }
 124     }
 125 }