wamblee.org Git - utils/blob - support/src/test/java/org/wamblee/xml/XslTransformerTest.java

   1 /*
   2  * Copyright 2005 the original author or authors.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *      http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 package org.wamblee.xml;
  18
  19 import java.io.ByteArrayOutputStream;
  20 import java.io.File;
  21 import java.io.IOException;
  22
  23 import javax.xml.parsers.DocumentBuilder;
  24 import javax.xml.parsers.DocumentBuilderFactory;
  25 import javax.xml.transform.Result;
  26 import javax.xml.transform.Source;
  27 import javax.xml.transform.TransformerException;
  28 import javax.xml.transform.stream.StreamResult;
  29 import javax.xml.transform.stream.StreamSource;
  30
  31 import junit.framework.TestCase;
  32
  33 import org.springframework.core.io.ClassPathResource;
  34 import org.w3c.dom.Document;
  35 import org.wamblee.io.FileSystemUtils;
  36 import org.wamblee.io.InputResource;
  37 import org.wamblee.io.TestResource;
  38
  39 /**
  40  * Tests the XSL transformer.
  41  */
  42 public class XslTransformerTest extends TestCase {
  43
  44     private static final String REPORT_XML = "report.xml";
  45
  46     private static final String REPORT_TO_HTML_XSLT = "reportToHtml.xsl";
  47
  48     private static final String REPORT_TO_HTML2_XSLT = "reportToHtml2.xsl";
  49
  50     private static final String REPORT_TO_HTML_INVALID_XSLT = "reportToHtml-invalid.xsl";
  51
  52     private static final String REPORT_TO_HTML_NONWELLFORMED_XSLT = "reportToHtml-nonwellformed.xsl";
  53
  54     private static final String REPORT_TO_TEXT_XSLT = "reportToText.xsl";
  55
  56
  57     /**
  58      * Transforms a file while using the default resolver, where the included
  59      * file can be found. Verifies the transformation is done correctly.
  60      *
  61      */
  62     public void testTransformUsingDefaultResolver() throws Exception {
  63         XslTransformer transformer = new XslTransformer();
  64
  65         InputResource xmlResource = new TestResource(XslTransformerTest.class,
  66                 REPORT_XML);
  67         Source xslt = new StreamSource(
  68                 new File(FileSystemUtils
  69                         .getTestInputDir(XslTransformerTest.class),
  70                         REPORT_TO_HTML_XSLT));
  71
  72         byte[] documentData = FileSystemUtils
  73                 .read(xmlResource.getInputStream()).getBytes();
  74         DocumentBuilder builder = DocumentBuilderFactory.newInstance()
  75                 .newDocumentBuilder();
  76         Document document = builder.parse(xmlResource.getInputStream());
  77         Source documentSource = new StreamSource(xmlResource.getInputStream());
  78
  79         Document expected = DomUtils.read(new TestResource(
  80                 XslTransformerTest.class, "output-reportToHtml-report.xml")
  81                 .getInputStream());
  82
  83         Document output1 = transformer.transform(documentData, xslt);
  84         XmlUtils.assertEquals("byte[] transform", expected, output1);
  85
  86         Document output2 = transformer.transform(document, xslt);
  87         XmlUtils.assertEquals("document transform", expected, output2);
  88
  89         ByteArrayOutputStream os = new ByteArrayOutputStream();
  90         Result output = new StreamResult(os);
  91         transformer.transform(documentSource, output, xslt);
  92         XmlUtils.assertEquals("document source transform", expected, DomUtils
  93                 .read(os.toString()));
  94
  95         String result = transformer.textTransform(documentData, xslt);
  96         XmlUtils
  97                 .assertEquals("text transform", expected, DomUtils.read(result));
  98     }
  99
 100     /**
 101      * Transforms a file using the default resolver where the included file
 102      * cannot be found. Verifies that a TransformerException is thrown.
 103      *
 104      */
 105     public void testTransformUsingDefaultResolverFails() throws IOException {
 106         XslTransformer transformer = new XslTransformer();
 107
 108         InputResource xmlResource = new TestResource(XslTransformerTest.class,
 109                 REPORT_XML);
 110         Source xslt = new StreamSource(new File(FileSystemUtils
 111                 .getTestInputDir(XslTransformerTest.class),
 112                 REPORT_TO_HTML2_XSLT));
 113
 114         byte[] documentData = FileSystemUtils
 115                 .read(xmlResource.getInputStream()).getBytes();
 116         try {
 117             Document output1 = transformer.transform(documentData, xslt);
 118         } catch (TransformerException e) {
 119             return; // ok
 120         }
 121         fail();
 122     }
 123
 124     /**
 125      * Transforms a file using an invalid Xslt. Verifies that a
 126      * TransformerException is thrown.
 127      *
 128      */
 129     public void testTransformInvalidXslt() throws IOException {
 130         XslTransformer transformer = new XslTransformer();
 131
 132         InputResource xmlResource = new TestResource(XslTransformerTest.class,
 133                 REPORT_XML);
 134         Source xslt = new StreamSource(new File(FileSystemUtils
 135                 .getTestInputDir(XslTransformerTest.class),
 136                 REPORT_TO_HTML_INVALID_XSLT));
 137
 138         byte[] documentData = FileSystemUtils
 139                 .read(xmlResource.getInputStream()).getBytes();
 140         try {
 141             Document output1 = transformer.transform(documentData, xslt);
 142         } catch (TransformerException e) {
 143             return; // ok
 144         }
 145         fail();
 146     }
 147
 148     /**
 149      * Transforms a file using a non-well formed xslt. Verifies that a
 150      * TransformerException is thrown.
 151      *
 152      */
 153     public void testTransformNonWellformedXslt() throws IOException {
 154         XslTransformer transformer = new XslTransformer();
 155
 156         InputResource xmlResource = new TestResource(XslTransformerTest.class,
 157                 REPORT_XML);
 158         Source xslt = new StreamSource(new File(FileSystemUtils
 159                 .getTestInputDir(XslTransformerTest.class),
 160                 REPORT_TO_HTML_NONWELLFORMED_XSLT));
 161
 162         byte[] documentData = FileSystemUtils
 163                 .read(xmlResource.getInputStream()).getBytes();
 164         try {
 165             Document output1 = transformer.transform(documentData, xslt);
 166         } catch (TransformerException e) {
 167             return; // ok
 168         }
 169         fail();
 170     }
 171
 172     /**
 173      * Transforms a file using a class path resolver.
 174      *
 175      */
 176     public void testTransformUsingClassPathResolver() throws Exception {
 177         XslTransformer transformer = new XslTransformer(new ClasspathUriResolver());
 178
 179         InputResource xmlResource = new TestResource(XslTransformerTest.class,
 180                 REPORT_XML);
 181         Source xslt = new StreamSource(new File(FileSystemUtils
 182                 .getTestInputDir(XslTransformerTest.class),
 183                 REPORT_TO_HTML2_XSLT));
 184
 185         byte[] documentData = FileSystemUtils
 186                 .read(xmlResource.getInputStream()).getBytes();
 187
 188         Document output1 = transformer.transform(documentData, xslt);
 189         Document expected = DomUtils.read(new TestResource(
 190                 XslTransformerTest.class, "output-reportToHtml-report.xml")
 191                 .getInputStream());
 192         XmlUtils.assertEquals("doc", expected, output1);
 193     }
 194
 195     /**
 196      * Transforms a file to text output. Verifies the file is transformed
 197      * correctly.
 198      *
 199      */
 200     public void testTransformToTextOutput() throws Exception {
 201         XslTransformer transformer = new XslTransformer(new ClasspathUriResolver());
 202
 203         InputResource xmlResource = new TestResource(XslTransformerTest.class,
 204                 REPORT_XML);
 205         Source xslt = new StreamSource(
 206                 new File(FileSystemUtils
 207                         .getTestInputDir(XslTransformerTest.class),
 208                         REPORT_TO_TEXT_XSLT));
 209
 210         byte[] documentData = FileSystemUtils
 211                 .read(xmlResource.getInputStream()).getBytes();
 212
 213         String result = transformer.textTransform(documentData, xslt);
 214         String expected = "Hello world!";
 215         assertEquals("text transform", expected, result);
 216     }
 217
 218     /**
 219      * Tests resolving a file using {@link XslTransformer#resolve(String)}.
 220      *
 221      */
 222     public void testResolveWithDefaultResolver() throws Exception {
 223         XslTransformer transformer = new XslTransformer();
 224         File utilities = new File(FileSystemUtils.getTestInputDir(XslTransformerTest.class), "utilities.xsl");
 225         Source source = transformer.resolve(utilities.getAbsolutePath());
 226         assert(source instanceof StreamSource);
 227         StreamSource ssource = (StreamSource)source;
 228         String data = FileSystemUtils.read(ssource.getInputStream());
 229         String expected = FileSystemUtils.read(new ClassPathResource("org/wamblee/xml/utilities.xsl").getInputStream());
 230         assertEquals(expected, data);
 231     }
 232
 233     /**
 234      * Tests resolving a file using {@link XslTransformer#resolve(String)} with the
 235      * default resolver where the file does not exist.
 236      *
 237      */
 238     public void testResolveWithDefaultResolverFileNotFound() {
 239         XslTransformer transformer = new XslTransformer();
 240         try {
 241             Source source = transformer.resolve("org/wamblee/xml/utilities-nonexistent.xsl");
 242         } catch (TransformerException e) {
 243             return; // ok
 244         }
 245         fail();
 246     }
 247
 248
 249     /**
 250      * Tests resolving a file using {@link XslTransformer#resolve(String)} with the
 251      * default resolver.
 252      *
 253      */
 254     public void testResolveWithClasspathResolver() throws Exception {
 255         XslTransformer transformer = new XslTransformer(new ClasspathUriResolver());
 256         Source source = transformer.resolve("org/wamblee/xml/utilities.xsl");
 257         assert(source instanceof StreamSource);
 258         StreamSource ssource = (StreamSource)source;
 259         String data = FileSystemUtils.read(ssource.getInputStream());
 260         String expected = FileSystemUtils.read(new ClassPathResource("org/wamblee/xml/utilities.xsl").getInputStream());
 261         assertEquals(expected, data);
 262     }
 263
 264 }
 265
 266