Source Code Cross Referenced for TurboTest.java in  » IDE-Netbeans » versioning » org » netbeans » modules » turbo » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » IDE Netbeans » versioning » org.netbeans.modules.turbo 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
003:         *
004:         * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
005:         *
006:         * The contents of this file are subject to the terms of either the GNU
007:         * General Public License Version 2 only ("GPL") or the Common
008:         * Development and Distribution License("CDDL") (collectively, the
009:         * "License"). You may not use this file except in compliance with the
010:         * License. You can obtain a copy of the License at
011:         * http://www.netbeans.org/cddl-gplv2.html
012:         * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
013:         * specific language governing permissions and limitations under the
014:         * License.  When distributing the software, include this License Header
015:         * Notice in each file and include the License file at
016:         * nbbuild/licenses/CDDL-GPL-2-CP.  Sun designates this
017:         * particular file as subject to the "Classpath" exception as provided
018:         * by Sun in the GPL Version 2 section of the License file that
019:         * accompanied this code. If applicable, add the following below the
020:         * License Header, with the fields enclosed by brackets [] replaced by
021:         * your own identifying information:
022:         * "Portions Copyrighted [year] [name of copyright owner]"
023:         *
024:         * Contributor(s):
025:         *
026:         * The Original Software is NetBeans. The Initial Developer of the Original
027:         * Software is Sun Microsystems, Inc. Portions Copyright 1997-2006 Sun
028:         * Microsystems, Inc. All Rights Reserved.
029:         *
030:         * If you wish your version of this file to be governed by only the CDDL
031:         * or only the GPL Version 2, indicate your decision by adding
032:         * "[Contributor] elects to include this software in this distribution
033:         * under the [CDDL or GPL Version 2] license." If you do not indicate a
034:         * single choice of license, a recipient has the option to distribute
035:         * your version of this file under either the CDDL, the GPL Version 2 or
036:         * to extend the choice of license to its licensees as provided above.
037:         * However, if you add GPL Version 2 code and therefore, elected the GPL
038:         * Version 2 license, then the option applies only if the new code is
039:         * made subject to such option by the copyright holder.
040:         */
041:
042:        package org.netbeans.modules.turbo;
043:
044:        import junit.framework.TestCase;
045:        import org.openide.util.Lookup;
046:        import org.openide.util.lookup.InstanceContent;
047:        import org.openide.util.lookup.AbstractLookup;
048:        import org.openide.filesystems.FileObject;
049:        import org.openide.filesystems.LocalFileSystem;
050:        import org.openide.filesystems.FileSystem;
051:
052:        import java.io.File;
053:
054:        /**
055:         * Tests Turbo
056:         *
057:         * @author Petr Kuzel
058:         */
059:        public class TurboTest extends TestCase {
060:
061:            private static InstanceContent content = new InstanceContent();
062:
063:            private FileSystem fs;
064:
065:            private static TestEnvironment env;
066:
067:            private int tearDownCounter = countTestCases();
068:
069:            // per testcase static setup
070:            static {
071:                env = new TestEnvironment();
072:                Turbo.initEnvironment(env);
073:            }
074:
075:            // called before every method
076:            protected void setUp() throws Exception {
077:
078:                // prepare simple LFS
079:
080:                LocalFileSystem fs = new LocalFileSystem();
081:                File tmp = new File(System.getProperty("java.io.tmpdir")
082:                        + File.separator + "turbo-test");
083:                tmp.mkdir();
084:                tmp.deleteOnExit();
085:                File theFile = new File(tmp, "theFile");
086:                theFile.createNewFile();
087:                theFile.deleteOnExit();
088:                fs.setRootDirectory(tmp);
089:
090:                System.setProperty("netbeans.experimental.vcsTurboStatistics",
091:                        "performance");
092:                this .fs = fs;
093:            }
094:
095:            protected void tearDown() throws Exception {
096:                if (tearDownCounter-- == 1) {
097:                    try {
098:                        Turbo.getDefault().finalize();
099:                    } catch (Throwable t) {
100:                        t.printStackTrace();
101:                    }
102:                }
103:            }
104:
105:            /**
106:             * Once setting an atribute it must be in memory until
107:             * file reference is GCed. Providers must be queried.
108:             * Th event must be fired.
109:             */
110:            public void testHitAfterSet() throws Exception {
111:                Turbo faq = Turbo.getDefault();
112:
113:                FileObject fo = fs.getRoot().getFileObject("theFile");
114:                AttributeListener l = new AttributeListener();
115:                faq.addTurboListener(l);
116:
117:                faq.writeEntry(fo, "test", "testValue");
118:                assertTrue("Missing Turbo event", l.hit());
119:
120:                // must not raise fail on providers read layer
121:                faq.readEntry(fo, "test");
122:
123:                // it shoud not fire on equel values
124:                l.reset();
125:                faq.writeEntry(fo, "test", "testValue");
126:                assertFalse("Missing Turbo event", l.hit());
127:            }
128:
129:            /**
130:             * <code<null</code> value serves for invalidation purposes.
131:             */
132:            public void testInvalidation() throws Exception {
133:                Turbo faq = Turbo.getDefault();
134:
135:                FileObject fo = fs.getRoot().getFileObject("theFile");
136:
137:                faq.writeEntry(fo, "invalidate", "testValue");
138:                faq.writeEntry(fo, "invalidate", null);
139:                assertFalse(faq.isPrepared(fo, "invalidate"));
140:
141:                // after reading attribute we know that is unknown, it's prepared
142:                faq.readEntry(fo, "invalidate");
143:                assertTrue(faq.isPrepared(fo, "invalidate"));
144:            }
145:
146:            private static class TestEnvironment extends Turbo.Environment {
147:
148:                private Lookup l;
149:
150:                public TestEnvironment() {
151:                    content.add(new AssertingTurboProvider());
152:                    l = new AbstractLookup(content);
153:                }
154:
155:                public Lookup getLookup() {
156:                    return l;
157:                }
158:            }
159:
160:            private static class AssertingTurboProvider implements 
161:                    TurboProvider {
162:
163:                public boolean recognizesAttribute(String name) {
164:                    return "test".equals(name);
165:                }
166:
167:                public boolean recognizesEntity(Object key) {
168:                    return true;
169:                }
170:
171:                public Object readEntry(Object key, String name,
172:                        MemoryCache memoryCache) {
173:                    fail();
174:                    return null;
175:                }
176:
177:                public boolean writeEntry(Object key, String name, Object value) {
178:                    return true;
179:                }
180:            }
181:
182:            private class AttributeListener implements  TurboListener {
183:
184:                private volatile boolean hit = false;
185:
186:                public void reset() {
187:                    hit = false;
188:                }
189:
190:                public boolean hit() {
191:                    return hit;
192:                }
193:
194:                public synchronized void entryChanged(Object key, String name,
195:                        Object value) {
196:                    hit = true;
197:                    notifyAll();
198:                }
199:
200:                public synchronized void waitForHit(int timeout) {
201:                    long start = System.currentTimeMillis();
202:                    while (hit == false) {
203:                        try {
204:                            wait(timeout);
205:                            if (System.currentTimeMillis() - start > timeout)
206:                                return;
207:                        } catch (InterruptedException e) {
208:                            return;
209:                        }
210:                    }
211:                }
212:            }
213:
214:            /**
215:             * Test provider that so slow that someone else populates memory faster.
216:             */
217:            public void testSlowProvider() throws Exception {
218:                Turbo faq = Turbo.getDefault();
219:
220:                FileObject fo = fs.getRoot().getFileObject("theFile");
221:
222:                SlowProvider sp = new SlowProvider();
223:                content.add(sp);
224:                try {
225:                    faq.prepareEntry(fo, "slow"); // hey a thread is spawned to load attribute on background
226:
227:                    // simulate faster client
228:
229:                    AttributeListener expecting = new AttributeListener();
230:                    faq.addTurboListener(expecting);
231:                    faq.writeEntry(fo, "slow", "result"); // expecting synchronous event
232:                    faq.removeTurboListener(expecting);
233:                    assertTrue(expecting.hit());
234:
235:                    // now unblock provider and let it report the same value
236:
237:                    AttributeListener besilent = new AttributeListener();
238:                    faq.addTurboListener(besilent);
239:                    sp.notifyReady(); // an event must not be fired because of the same value
240:                    besilent.waitForHit(100);
241:                    faq.removeTurboListener(besilent);
242:
243:                    // TODO it's safer to fire than to not fire it's just possibly slow
244:                    //assertFalse(besilent.hit());
245:                } finally {
246:                    content.remove(sp);
247:                }
248:            }
249:
250:            private class SlowProvider implements  TurboProvider {
251:
252:                volatile boolean ready;
253:
254:                public boolean recognizesAttribute(String name) {
255:                    return "slow".equals(name);
256:                }
257:
258:                public boolean recognizesEntity(Object key) {
259:                    return true;
260:                }
261:
262:                public synchronized Object readEntry(Object key, String name,
263:                        MemoryCache memoryCache) {
264:                    while (ready == false) {
265:                        try {
266:                            wait();
267:                        } catch (InterruptedException e) {
268:                            break;
269:                        }
270:                    }
271:                    return "result";
272:                }
273:
274:                public boolean writeEntry(Object key, String name, Object value) {
275:                    // XXX Note this is coming as result of faster FAQ.writeAttribute
276:                    return true;
277:                }
278:
279:                public synchronized void notifyReady() {
280:                    ready = true;
281:                    notifyAll();
282:                }
283:            }
284:
285:            /**
286:             * Prepare must fire event on successfull prepare
287:             * XXX yet undefined behaviour otherwise.
288:             */
289:            public void testPrepare() throws Exception {
290:                Turbo faq = Turbo.getDefault();
291:                FileObject fo = fs.getRoot().getFileObject("theFile");
292:                PrepareProvider pp = new PrepareProvider();
293:                content.add(pp);
294:                try {
295:
296:                    AttributeListener l = new AttributeListener();
297:                    faq.addTurboListener(l);
298:                    faq.prepareEntry(fo, "prepare");
299:                    l.waitForHit(500);
300:                    faq.removeTurboListener(l);
301:
302:                    assertTrue(l.hit);
303:
304:                    // be sure that event granularity is given by attr,file pair (not just by file)
305:
306:                    l.reset();
307:                    faq.addTurboListener(l);
308:                    faq.prepareEntry(fo, "prepare2");
309:                    l.waitForHit(500);
310:                    faq.removeTurboListener(l);
311:
312:                    assertTrue(l.hit);
313:                } finally {
314:                    content.remove(pp);
315:                }
316:            }
317:
318:            private class PrepareProvider implements  TurboProvider {
319:
320:                public boolean recognizesAttribute(String name) {
321:                    return "prepare".equals(name) || "prepare2".equals(name);
322:                }
323:
324:                public boolean recognizesEntity(Object key) {
325:                    return true;
326:                }
327:
328:                public Object readEntry(Object key, String name,
329:                        MemoryCache memoryCache) {
330:                    return "done";
331:                }
332:
333:                public boolean writeEntry(Object key, String name, Object value) {
334:                    return true;
335:                }
336:            }
337:
338:            /**
339:             * Register new provider and verify that it's called
340:             * without throwing an exception.
341:             */
342:            public void testWrongProvider() {
343:                WrongProvider provider = new WrongProvider();
344:
345:                Lookup.Template t = new Lookup.Template(TurboProvider.class);
346:                Lookup.Result r = env.getLookup().lookup(t);
347:                content.add(provider);
348:                assert r.allInstances().size() == 2 : "r=" + r.allInstances();
349:
350:                Turbo faq = Turbo.getDefault();
351:
352:                FileObject fo = fs.getRoot().getFileObject("theFile");
353:
354:                try {
355:                    assertNull(faq.readEntry(fo, "wrong"));
356:                } catch (RuntimeException ex) {
357:                    fail("WrongProvider crashed framework");
358:                }
359:
360:                assertTrue("Provider registration was missed", provider.queried);
361:
362:                content.remove(provider);
363:            }
364:
365:            private class WrongProvider implements  TurboProvider {
366:
367:                volatile boolean queried;
368:
369:                public boolean recognizesAttribute(String name) {
370:                    queried = true;
371:                    return "wrong".equals(name);
372:                    // throw new RuntimeException(); XXX too early
373:                }
374:
375:                public boolean recognizesEntity(Object key) {
376:                    return true;
377:                }
378:
379:                public Object readEntry(Object key, String name,
380:                        MemoryCache memoryCache) {
381:                    throw new RuntimeException();
382:                }
383:
384:                public boolean writeEntry(Object key, String name, Object value) {
385:                    throw new RuntimeException();
386:                }
387:            }
388:
389:        }
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