Source Code Cross Referenced for DigesterLoaderTest.java in  » XML » digester » org » apache » commons » digester » xmlrules » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » XML » digester » org.apache.commons.digester.xmlrules 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /* $Id: DigesterLoaderTest.java 474932 2006-11-14 19:36:29Z rahul $
002:         *
003:         * Licensed to the Apache Software Foundation (ASF) under one or more
004:         * contributor license agreements.  See the NOTICE file distributed with
005:         * this work for additional information regarding copyright ownership.
006:         * The ASF licenses this file to You under the Apache License, Version 2.0
007:         * (the "License"); you may not use this file except in compliance with
008:         * the License.  You may obtain a copy of the License at
009:         * 
010:         *      http://www.apache.org/licenses/LICENSE-2.0
011:         * 
012:         * Unless required by applicable law or agreed to in writing, software
013:         * distributed under the License is distributed on an "AS IS" BASIS,
014:         * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015:         * See the License for the specific language governing permissions and
016:         * limitations under the License.
017:         */
018:
019:        package org.apache.commons.digester.xmlrules;
020:
021:        import java.io.InputStream;
022:        import java.io.StringReader;
023:        import java.net.URL;
024:        import java.util.ArrayList;
025:        import java.util.List;
026:
027:        import junit.framework.TestCase;
028:        import junit.framework.TestSuite;
029:
030:        import org.apache.commons.digester.Address;
031:        import org.apache.commons.digester.Digester;
032:        import org.apache.commons.digester.TestObjectCreationFactory;
033:
034:        import org.w3c.dom.Node;
035:        import org.xml.sax.InputSource;
036:
037:        /**
038:         * Tests loading Digester rules from an XML file.
039:         *
040:         * @author David H. Martin - Initial Contribution
041:         * @author Scott Sanders   - Added ASL, removed external dependencies
042:         */
043:
044:        public class DigesterLoaderTest extends TestCase {
045:
046:            public DigesterLoaderTest(java.lang.String testName) {
047:                super (testName);
048:            }
049:
050:            public static void main(java.lang.String[] args) {
051:                junit.textui.TestRunner.run(suite());
052:            }
053:
054:            public static junit.framework.Test suite() {
055:                TestSuite suite = new TestSuite(DigesterLoaderTest.class);
056:
057:                return suite;
058:            }
059:
060:            /**
061:             * Tests the DigesterLoader.createDigester(), with multiple
062:             * included rule sources: testrules.xml includes another rules xml
063:             * file, and also includes programmatically created rules.
064:             */
065:            public void testCreateDigester() throws Exception {
066:                URL rules = getClass().getClassLoader().getResource(
067:                        "org/apache/commons/digester/xmlrules/testrules.xml");
068:                URL input = getClass().getClassLoader().getResource(
069:                        "org/apache/commons/digester/xmlrules/test.xml");
070:                assertNotNull("The test could not locate testrules.xml", rules);
071:                assertNotNull("The test could not locate test.xml", input);
072:                Digester digester = DigesterLoader.createDigester(rules);
073:                digester.push(new ArrayList());
074:                Object root = digester.parse(input.openStream());
075:                assertEquals("[foo1 baz1 foo2, foo3 foo4]", root.toString());
076:            }
077:
078:            /**
079:             * Tests the DigesterLoader.load(), with multiple included rule
080:             * sources: testrules.xml includes another rules xml file, and
081:             * also includes programmatically created rules.
082:             */
083:            public void testLoad1() throws Exception {
084:                ClassLoader classLoader = getClass().getClassLoader();
085:                URL rules = classLoader
086:                        .getResource("org/apache/commons/digester/xmlrules/testrules.xml");
087:                URL input = classLoader
088:                        .getResource("org/apache/commons/digester/xmlrules/test.xml");
089:                assertNotNull("The test could not locate testrules.xml", rules);
090:                assertNotNull("The test could not locate test.xml", input);
091:                Object root = DigesterLoader.load(rules, classLoader, input,
092:                        new ArrayList());
093:                if (!(root instanceof  ArrayList)) {
094:                    fail("Unexpected object returned from DigesterLoader. Expected ArrayList; got "
095:                            + root.getClass().getName());
096:                }
097:                assertEquals("[foo1 baz1 foo2, foo3 foo4]", root.toString());
098:
099:                ArrayList al = (ArrayList) root;
100:                Object obj = al.get(0);
101:                if (!(obj instanceof  TestObject)) {
102:                    fail("Unexpected object returned from DigesterLoader. Expected TestObject; got "
103:                            + obj.getClass().getName());
104:                }
105:                TestObject to = (TestObject) obj;
106:                assertEquals(new Long(555), to.getLongValue());
107:                assertEquals("foo", to.getMapValue("test1"));
108:                assertEquals("bar", to.getMapValue("test2"));
109:            }
110:
111:            /**
112:             * The same as testLoad1, exception the input file is passed to
113:             * DigesterLoader as an InputStream instead of a URL.
114:             */
115:            public void testLoad2() throws Exception {
116:                URL rules = getClass().getClassLoader().getResource(
117:                        "org/apache/commons/digester/xmlrules/testrules.xml");
118:                InputStream input = getClass().getClassLoader().getResource(
119:                        "org/apache/commons/digester/xmlrules/test.xml")
120:                        .openStream();
121:                Object root = DigesterLoader.load(rules, getClass()
122:                        .getClassLoader(), input, new ArrayList());
123:                if (!(root instanceof  ArrayList)) {
124:                    fail("Unexpected object returned from DigesterLoader. Expected ArrayList; got "
125:                            + root.getClass().getName());
126:                }
127:                ArrayList list = (ArrayList) root;
128:                assertEquals(root.toString(), "[foo1 baz1 foo2, foo3 foo4]");
129:                assertEquals("Wrong number of classes created", 2, list.size());
130:                assertEquals("Pushed first", true, ((TestObject) list.get(0))
131:                        .isPushed());
132:                assertEquals("Didn't push second", false, ((TestObject) list
133:                        .get(1)).isPushed());
134:                assertTrue("Property was set properly", ((TestObject) list
135:                        .get(0)).getProperty().equals("I am a property!"));
136:            }
137:
138:            /**
139:             * Validates that circular includes are detected and result in an exception
140:             */
141:            public void testCircularInclude1() {
142:                URL rules = ClassLoader
143:                        .getSystemResource("org/apache/commons/digester/xmlrules/testCircularRules.xml");
144:                try {
145:                    Digester digester = DigesterLoader.createDigester(rules);
146:                    assertNotNull(digester); // just to prevent compiler warning on unused var
147:                } catch (Exception ex) {
148:                    return;
149:                }
150:                fail("Creating a digester with circular rules should have thrown CircularIncludeException.");
151:            }
152:
153:            /**
154:             */
155:            public void testSetCustomProperties() throws Exception {
156:                URL rules = getClass()
157:                        .getClassLoader()
158:                        .getResource(
159:                                "org/apache/commons/digester/xmlrules/testPropertyAliasRules.xml");
160:                InputStream input = getClass().getClassLoader().getResource(
161:                        "org/apache/commons/digester/Test7.xml").openStream();
162:
163:                Object obj = DigesterLoader.load(rules, getClass()
164:                        .getClassLoader(), input, new ArrayList());
165:
166:                if (!(obj instanceof  ArrayList)) {
167:                    fail("Unexpected object returned from DigesterLoader. Expected ArrayList; got "
168:                            + obj.getClass().getName());
169:                }
170:
171:                ArrayList root = (ArrayList) obj;
172:
173:                assertEquals("Wrong array size", 4, root.size());
174:
175:                // note that the array is in popped order (rather than pushed)
176:
177:                obj = root.get(0);
178:                assertTrue("(1) Should be an Address ", obj instanceof  Address);
179:                Address addressOne = (Address) obj;
180:                assertEquals("(1) Street attribute", "New Street", addressOne
181:                        .getStreet());
182:                assertEquals("(1) City attribute", "Las Vegas", addressOne
183:                        .getCity());
184:                assertEquals("(1) State attribute", "Nevada", addressOne
185:                        .getState());
186:
187:                obj = root.get(1);
188:                assertTrue("(2) Should be an Address ", obj instanceof  Address);
189:                Address addressTwo = (Address) obj;
190:                assertEquals("(2) Street attribute", "Old Street", addressTwo
191:                        .getStreet());
192:                assertEquals("(2) City attribute", "Portland", addressTwo
193:                        .getCity());
194:                assertEquals("(2) State attribute", "Oregon", addressTwo
195:                        .getState());
196:
197:                obj = root.get(2);
198:                assertTrue("(3) Should be an Address ", obj instanceof  Address);
199:                Address addressThree = (Address) obj;
200:                assertEquals("(3) Street attribute", "4th Street", addressThree
201:                        .getStreet());
202:                assertEquals("(3) City attribute", "Dayton", addressThree
203:                        .getCity());
204:                assertEquals("(3) State attribute", "US", addressThree
205:                        .getState());
206:
207:                obj = root.get(3);
208:                assertTrue("(4) Should be an Address ", obj instanceof  Address);
209:                Address addressFour = (Address) obj;
210:                assertEquals("(4) Street attribute", "6th Street", addressFour
211:                        .getStreet());
212:                assertEquals("(4) City attribute", "Cleveland", addressFour
213:                        .getCity());
214:                assertEquals("(4) State attribute", "Ohio", addressFour
215:                        .getState());
216:
217:            }
218:
219:            public void testFactoryCreateRule() throws Exception {
220:                URL rules = getClass().getClassLoader().getResource(
221:                        "org/apache/commons/digester/xmlrules/testfactory.xml");
222:
223:                String xml = "<?xml version='1.0' ?><root one='good' two='bad' three='ugly'><foo/></root>";
224:                Object obj = DigesterLoader.load(rules, getClass()
225:                        .getClassLoader(), new StringReader(xml),
226:                        new ArrayList());
227:
228:                if (!(obj instanceof  ArrayList)) {
229:                    fail("Unexpected object returned from DigesterLoader. Expected ArrayList; got "
230:                            + obj.getClass().getName());
231:                }
232:
233:                ArrayList list = (ArrayList) obj;
234:
235:                assertEquals("List should contain only the factory object",
236:                        list.size(), 1);
237:                TestObjectCreationFactory factory = (TestObjectCreationFactory) list
238:                        .get(0);
239:                assertEquals("Object create not called(1)", factory.called,
240:                        true);
241:                assertEquals("Attribute not passed (1)", factory.attributes
242:                        .getValue("one"), "good");
243:                assertEquals("Attribute not passed (2)", factory.attributes
244:                        .getValue("two"), "bad");
245:                assertEquals("Attribute not passed (3)", factory.attributes
246:                        .getValue("three"), "ugly");
247:
248:                rules = getClass()
249:                        .getClassLoader()
250:                        .getResource(
251:                                "org/apache/commons/digester/xmlrules/testfactoryignore.xml");
252:
253:                xml = "<?xml version='1.0' ?><root one='good' two='bad' three='ugly'><foo/></root>";
254:                try {
255:                    DigesterLoader.load(rules, getClass().getClassLoader(),
256:                            new StringReader(xml));
257:                } catch (Exception e) {
258:                    fail("This exception should have been ignored: "
259:                            + e.getClass().getName());
260:                }
261:
262:                rules = getClass()
263:                        .getClassLoader()
264:                        .getResource(
265:                                "org/apache/commons/digester/xmlrules/testfactorynoignore.xml");
266:
267:                xml = "<?xml version='1.0' ?><root one='good' two='bad' three='ugly'><foo/></root>";
268:                try {
269:                    DigesterLoader.load(rules, getClass().getClassLoader(),
270:                            new StringReader(xml));
271:                    fail("Exception should have been propagated from create method.");
272:                } catch (Exception e) {
273:                    /* What we expected */
274:                    assertEquals(org.xml.sax.SAXParseException.class, e
275:                            .getClass());
276:                }
277:            }
278:
279:            public void testCallParamRule() throws Exception {
280:
281:                URL rules = getClass()
282:                        .getClassLoader()
283:                        .getResource(
284:                                "org/apache/commons/digester/xmlrules/test-call-param-rules.xml");
285:
286:                String xml = "<?xml version='1.0' ?>"
287:                        + "<root><foo attr='long'><bar>short</bar><foobar><ping>tosh</ping></foobar></foo></root>";
288:
289:                CallParamTestObject testObject = new CallParamTestObject();
290:
291:                DigesterLoader.load(rules, getClass().getClassLoader(),
292:                        new StringReader(xml), testObject);
293:
294:                assertEquals("Incorrect left value", "long", testObject
295:                        .getLeft());
296:                assertEquals("Incorrect middle value", "short", testObject
297:                        .getMiddle());
298:                assertEquals("Incorrect right value", "", testObject.getRight());
299:            }
300:
301:            public void testInputSourceLoader() throws Exception {
302:                String rulesXml = "<?xml version='1.0'?>"
303:                        + "<digester-rules>"
304:                        + " <pattern value='root'>"
305:                        + "   <pattern value='foo'>"
306:                        + "     <call-method-rule methodname='triple' paramcount='3'"
307:                        + "            paramtypes='java.lang.String,java.lang.String,java.lang.String'/>"
308:                        + "     <call-param-rule paramnumber='0' attrname='attr'/>"
309:                        + "        <pattern value='bar'>"
310:                        + "            <call-param-rule paramnumber='1' from-stack='false'/>"
311:                        + "        </pattern>"
312:                        + "        <pattern value='foobar'>"
313:                        + "            <object-create-rule classname='java.lang.String'/>"
314:                        + "            <pattern value='ping'>"
315:                        + "                <call-param-rule paramnumber='2' from-stack='true'/>"
316:                        + "            </pattern>" + "         </pattern>"
317:                        + "   </pattern>" + " </pattern>" + "</digester-rules>";
318:
319:                String xml = "<?xml version='1.0' ?>"
320:                        + "<root><foo attr='long'><bar>short</bar><foobar><ping>tosh</ping></foobar></foo></root>";
321:
322:                CallParamTestObject testObject = new CallParamTestObject();
323:
324:                Digester digester = DigesterLoader
325:                        .createDigester(new InputSource(new StringReader(
326:                                rulesXml)));
327:                digester.push(testObject);
328:                digester.parse(new StringReader(xml));
329:
330:                assertEquals("Incorrect left value", "long", testObject
331:                        .getLeft());
332:                assertEquals("Incorrect middle value", "short", testObject
333:                        .getMiddle());
334:                assertEquals("Incorrect right value", "", testObject.getRight());
335:            }
336:
337:            public void testNodeCreateRule() throws Exception {
338:
339:                URL rules = getClass()
340:                        .getClassLoader()
341:                        .getResource(
342:                                "org/apache/commons/digester/xmlrules/test-node-create-rules.xml");
343:                URL input = getClass()
344:                        .getClassLoader()
345:                        .getResource(
346:                                "org/apache/commons/digester/xmlrules/test-node-create-rules-input.xml");
347:                assertNotNull(
348:                        "The test could not locate test-node-create-rules.xml",
349:                        rules);
350:                assertNotNull(
351:                        "The test could not locate test-node-create-rules-input.xml",
352:                        input);
353:                Digester digester = DigesterLoader.createDigester(rules);
354:                digester.push(new ArrayList());
355:                Object root = digester.parse(input.openStream());
356:
357:                assertNotNull("root was null", root);
358:                assertTrue("no nodes were captured.",
359:                        (((List) root).size() > 0));
360:                Object[] nodeArray = (Object[]) ((List) root).toArray();
361:                assertNotNull("resulting node array from array list was null",
362:                        nodeArray);
363:
364:                // test foo1 structure        
365:                Node foo1 = (Node) nodeArray[0];
366:                assertTrue("foo1 didn't have any children", foo1
367:                        .hasChildNodes());
368:
369:                Node foo1Bar1 = foo1.getFirstChild();
370:                assertTrue("foo1's child was not named bar1", "bar1"
371:                        .equals(foo1Bar1.getNodeName()));
372:                assertTrue("foo1/bar1 value was not bar-1-value", "bar1-value"
373:                        .equals(foo1Bar1.getFirstChild().getNodeValue()));
374:            }
375:
376:        }
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