Source Code Cross Referenced for MiscellaneousTest.java in  » Ajax » GWT » com » google » gwt » dev » jjs » test » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Ajax » GWT » com.google.gwt.dev.jjs.test 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * Copyright 2007 Google Inc.
003:         * 
004:         * Licensed under the Apache License, Version 2.0 (the "License"); you may not
005:         * use this file except in compliance with the License. You may obtain a copy of
006:         * the License at
007:         * 
008:         * http://www.apache.org/licenses/LICENSE-2.0
009:         * 
010:         * Unless required by applicable law or agreed to in writing, software
011:         * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
012:         * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
013:         * License for the specific language governing permissions and limitations under
014:         * the License.
015:         */
016:        package com.google.gwt.dev.jjs.test;
017:
018:        import com.google.gwt.core.client.JavaScriptException;
019:        import com.google.gwt.core.client.JavaScriptObject;
020:        import com.google.gwt.junit.client.GWTTestCase;
021:
022:        /**
023:         * This should probably be refactored at some point.
024:         */
025:        public class MiscellaneousTest extends GWTTestCase {
026:
027:            interface I {
028:            }
029:
030:            interface IBar extends I {
031:            }
032:
033:            interface IFoo extends I {
034:            }
035:
036:            static class PolyA implements  IFoo {
037:                public String toString() {
038:                    return "A";
039:                }
040:            }
041:
042:            static class PolyB implements  IBar {
043:                public String toString() {
044:                    return "B";
045:                }
046:            }
047:
048:            private static class Foo extends JavaScriptObject {
049:                public String toString() {
050:                    return "Foo";
051:                }
052:            }
053:
054:            private static class HasClinit {
055:                public static int i = 1;
056:
057:                private static HasClinit sInstance = new HasClinit();
058:
059:                public static int sfoo() {
060:                    return sInstance.foo();
061:                }
062:
063:                private static native void clinitInNative() /*-{
064:                   }-*/;
065:
066:                private int foo() {
067:                    this .toString();
068:                    return 3;
069:                }
070:            }
071:
072:            public static native boolean noOptimizeFalse() /*-{
073:               return false;
074:             }-*/;
075:
076:            private static void assertAllCanStore(Object[] dest, Object[] src) {
077:                for (int i = 0; i < src.length; ++i) {
078:                    dest[0] = src[i];
079:                }
080:            }
081:
082:            private static void assertNoneCanStore(Object[] dest, Object[] src) {
083:                for (int i = 0; i < src.length; ++i) {
084:                    try {
085:                        dest[0] = src[i];
086:                        fail();
087:                    } catch (ArrayStoreException e) {
088:                    }
089:                }
090:            }
091:
092:            private static native void clinitFromNative() /*-{
093:               @com.google.gwt.dev.jjs.test.MiscellaneousTest$HasClinit::i = 5;
094:             }-*/;
095:
096:            private static native Foo getFoo() /*-{
097:               return {};
098:             }-*/;
099:
100:            private static native JavaScriptObject getJso() /*-{
101:               return {toString:function(){return 'jso';}}; 
102:             }-*/;
103:
104:            private static native void throwNativeException() /*-{
105:               var a; a.asdf();
106:             }-*/;
107:
108:            public String getModuleName() {
109:                return "com.google.gwt.dev.jjs.CompilerSuite";
110:            }
111:
112:            public void testArrayCasts() {
113:                {
114:                    // thwart optimizer
115:                    Object f1 = noOptimizeFalse() ? (Object) new PolyA()
116:                            : (Object) new IFoo[1];
117:                    assertEquals(
118:                            "[Lcom.google.gwt.dev.jjs.test.MiscellaneousTest$IFoo;",
119:                            f1.getClass().getName());
120:                    assertFalse(f1 instanceof  PolyA[][]);
121:                    assertFalse(f1 instanceof  IFoo[][]);
122:                    assertFalse(f1 instanceof  PolyA[]);
123:                    assertTrue(f1 instanceof  IFoo[]);
124:                    assertFalse(f1 instanceof  PolyA);
125:                    assertFalse(f1 instanceof  IFoo);
126:                    assertTrue(f1 instanceof  Object[]);
127:                    assertFalse(f1 instanceof  Object[][]);
128:
129:                    assertAllCanStore((Object[]) f1, new Object[] {
130:                            new PolyA(), new IFoo() {
131:                            } });
132:                    assertNoneCanStore((Object[]) f1, new Object[] {
133:                            new PolyB(), new Object(), new Object[0] });
134:                }
135:
136:                {
137:                    // thwart optimizer
138:                    Object a1 = noOptimizeFalse() ? (Object) new PolyA()
139:                            : (Object) new PolyA[1];
140:                    assertEquals(
141:                            "[Lcom.google.gwt.dev.jjs.test.MiscellaneousTest$PolyA;",
142:                            a1.getClass().getName());
143:                    assertFalse(a1 instanceof  PolyA[][]);
144:                    assertFalse(a1 instanceof  IFoo[][]);
145:                    assertTrue(a1 instanceof  PolyA[]);
146:                    assertTrue(a1 instanceof  IFoo[]);
147:                    assertFalse(a1 instanceof  PolyA);
148:                    assertFalse(a1 instanceof  IFoo);
149:                    assertTrue(a1 instanceof  Object[]);
150:                    assertFalse(a1 instanceof  Object[][]);
151:
152:                    assertAllCanStore((Object[]) a1,
153:                            new Object[] { new PolyA() });
154:                    assertNoneCanStore((Object[]) a1, new Object[] {
155:                            new IFoo() {
156:                            }, new PolyB(), new Object(), new Object[0] });
157:                }
158:
159:                {
160:                    // thwart optimizer
161:                    Object f2 = noOptimizeFalse() ? (Object) new PolyA()
162:                            : (Object) new IFoo[1][];
163:                    assertEquals(
164:                            "[[Lcom.google.gwt.dev.jjs.test.MiscellaneousTest$IFoo;",
165:                            f2.getClass().getName());
166:                    assertFalse(f2 instanceof  PolyA[][]);
167:                    assertTrue(f2 instanceof  IFoo[][]);
168:                    assertFalse(f2 instanceof  PolyA[]);
169:                    assertFalse(f2 instanceof  IFoo[]);
170:                    assertFalse(f2 instanceof  PolyA);
171:                    assertFalse(f2 instanceof  IFoo);
172:                    assertTrue(f2 instanceof  Object[]);
173:                    assertTrue(f2 instanceof  Object[][]);
174:
175:                    assertAllCanStore((Object[]) f2, new Object[] {
176:                            new PolyA[0], new IFoo[0] });
177:                    assertNoneCanStore((Object[]) f2, new Object[] {
178:                            new IFoo() {
179:                            }, new PolyB(), new Object(), new Object[0] });
180:                }
181:
182:                {
183:                    // thwart optimizer
184:                    Object a2 = noOptimizeFalse() ? (Object) new PolyA()
185:                            : (Object) new PolyA[1][];
186:                    assertEquals(
187:                            "[[Lcom.google.gwt.dev.jjs.test.MiscellaneousTest$PolyA;",
188:                            a2.getClass().getName());
189:                    assertTrue(a2 instanceof  PolyA[][]);
190:                    assertTrue(a2 instanceof  IFoo[][]);
191:                    assertFalse(a2 instanceof  PolyA[]);
192:                    assertFalse(a2 instanceof  IFoo[]);
193:                    assertFalse(a2 instanceof  PolyA);
194:                    assertFalse(a2 instanceof  IFoo);
195:                    assertTrue(a2 instanceof  Object[]);
196:                    assertTrue(a2 instanceof  Object[][]);
197:
198:                    assertAllCanStore((Object[]) a2,
199:                            new Object[] { new PolyA[0] });
200:                    assertNoneCanStore((Object[]) a2, new Object[] {
201:                            new IFoo() {
202:                            }, new PolyB(), new Object(), new Object[0],
203:                            new IFoo[0] });
204:                }
205:            }
206:
207:            public void testArrays() {
208:                int[] c = new int[] { 1, 2 };
209:                assertEquals("[I", c.getClass().getName());
210:                int[][] d = new int[][] { { 1, 2 }, { 3, 4 } };
211:                assertEquals("[[I", d.getClass().getName());
212:                assertEquals("[I", d[1].getClass().getName());
213:                int[][][] e = new int[][][] { { { 1, 2 }, { 3, 4 } },
214:                        { { 5, 6 }, { 7, 8 } } };
215:                assertEquals("[[[I", e.getClass().getName());
216:                assertEquals("[[I", e[1].getClass().getName());
217:                assertEquals("[I", e[1][1].getClass().getName());
218:                assertEquals(2, c[1]);
219:                assertEquals(3, d[1][0]);
220:                assertEquals(8, e[1][1][1]);
221:
222:                int[][][] b = new int[3][2][1];
223:                b[2][1][0] = 1;
224:                b = new int[3][2][];
225:                b[2][1] = null;
226:                b = new int[3][][];
227:                b[2] = null;
228:            }
229:
230:            public void testCasts() {
231:                Object o = noOptimizeFalse() ? (Object) new PolyA()
232:                        : (Object) new PolyB();
233:                assertTrue(o instanceof  I);
234:                assertFalse(o instanceof  IFoo);
235:                assertTrue(o instanceof  IBar);
236:                assertFalse(o instanceof  PolyA);
237:                assertTrue(o instanceof  PolyB);
238:                try {
239:                    o = (PolyA) o;
240:                    fail();
241:                } catch (ClassCastException e) {
242:                }
243:            }
244:
245:            public void testClinit() {
246:                ++HasClinit.i;
247:                HasClinit x = new HasClinit();
248:                ++x.i;
249:                new HasClinit().i++;
250:                HasClinit.i /= HasClinit.i;
251:                HasClinit.sfoo();
252:                HasClinit.i /= HasClinit.sfoo();
253:                HasClinit.clinitInNative();
254:                clinitFromNative();
255:            }
256:
257:            public void testExceptions() {
258:                int i;
259:                for (i = 0; i < 5; ++i) {
260:                    boolean hitOuter = false;
261:                    boolean hitInner = false;
262:                    try {
263:                        try {
264:                            switch (i) {
265:                            case 0:
266:                                throw new RuntimeException();
267:                            case 1:
268:                                throw new IndexOutOfBoundsException();
269:                            case 2:
270:                                throw new Exception();
271:                            case 3:
272:                                throw new StringIndexOutOfBoundsException();
273:                            case 4:
274:                                throwNativeException();
275:                            }
276:                        } catch (StringIndexOutOfBoundsException e) {
277:                            assertEquals(3, i);
278:                        } finally {
279:                            hitInner = true;
280:                        }
281:                    } catch (IndexOutOfBoundsException f) {
282:                        assertEquals(1, i);
283:                    } catch (JavaScriptException js) {
284:                        assertEquals(4, i);
285:                    } catch (RuntimeException g) {
286:                        assertEquals(0, i);
287:                    } catch (Throwable e) {
288:                        assertEquals(2, i);
289:                    } finally {
290:                        assertTrue(hitInner);
291:                        hitOuter = true;
292:                    }
293:                    assertTrue(hitOuter);
294:                }
295:                assertEquals(5, i);
296:            }
297:
298:            public void testJso() {
299:                Foo foo = getFoo();
300:                assertEquals("Foo", foo.toString());
301:                JavaScriptObject jso = foo;
302:                assertEquals("Foo", jso.toString());
303:                Object y = noOptimizeFalse() ? new Object() : foo;
304:                assertEquals("Foo", y.toString());
305:                jso = getJso();
306:                assertEquals("jso", jso.toString());
307:            }
308:
309:            public void testJsoArrayInit() {
310:                Object[] jsos = { getJso(), "" };
311:                JavaScriptObject jso = (JavaScriptObject) jsos[0];
312:            }
313:
314:            public void testJsoArrayStore() {
315:                // Verify that a JSO stored into an array was correctly wrapped
316:                String[] strings = { "" };
317:                JavaScriptObject[] jsos = { getJso() };
318:                Object[] objArray = noOptimizeFalse() ? (Object[]) strings
319:                        : jsos;
320:                JavaScriptObject jso = (JavaScriptObject) objArray[0];
321:
322:                // Verify that ArrayStoreExceptions are generated in the correct cases
323:                try {
324:                    JavaScriptObject[] typeTightenedFooArray = new Foo[3];
325:                    typeTightenedFooArray[0] = getJso();
326:                    fail();
327:                } catch (ArrayStoreException e) {
328:                }
329:
330:                try {
331:                    JavaScriptObject[] fooArray = noOptimizeFalse() ? new JavaScriptObject[3]
332:                            : new Foo[3];
333:                    fooArray[0] = getJso();
334:                    fail();
335:                } catch (ArrayStoreException e) {
336:                }
337:
338:                JavaScriptObject[] jsoArray = noOptimizeFalse() ? new Foo[3]
339:                        : new JavaScriptObject[3];
340:                jsoArray[0] = getJso();
341:            }
342:
343:            public void testString() {
344:                String x = "hi";
345:                assertEquals("hi", x);
346:                assertEquals("hi", x.toString());
347:                x = new String();
348:                assertEquals("", x);
349:                x = new String(x);
350:                assertEquals("", x);
351:                x = new String("hi");
352:                assertEquals("hi", x);
353:                assertEquals('i', x.charAt(1));
354:                assertEquals("hiyay", x.concat("yay"));
355:                assertEquals("hihi", x + x);
356:
357:                assertEquals(
358:                        "blahcom.google.gwt.dev.jjs.test.MiscellaneousTestabctruefalsenullc27",
359:                        ("blah" + this 
360:                                + String.valueOf(new char[] { 'a', 'b', 'c' })
361:                                + true + false + null + 'c' + 27));
362:            }
363:
364:            /**
365:             * Ensures that polymorphic dispatch to String works correctly.
366:             */
367:            @SuppressWarnings("unchecked")
368:            public void testStringPrototype() {
369:                Object s = noOptimizeFalse() ? new Object() : "Hello, World!";
370:                assertEquals(String.class, s.getClass());
371:                assertEquals("Hello, World!".hashCode(), s.hashCode());
372:                assertTrue(s.equals("Hello, World!"));
373:                assertTrue("Hello, World!".equals(s));
374:                assertFalse(s.equals(""));
375:                assertFalse("".equals(s));
376:                assertEquals("Hello, World!", s.toString());
377:                assertTrue(s instanceof  String);
378:
379:                Comparable b = noOptimizeFalse() ? new Integer(1)
380:                        : "Hello, World!";
381:                assertTrue(((Comparable) "Hello, World!").compareTo(b) == 0);
382:                assertTrue(b.compareTo("Hello, World!") == 0);
383:                assertTrue(((Comparable) "A").compareTo(b) < 0);
384:                assertTrue(b.compareTo("A") > 0);
385:                assertTrue(((Comparable) "Z").compareTo(b) > 0);
386:                assertTrue(b.compareTo("Z") < 0);
387:                assertTrue(b instanceof  String);
388:
389:                CharSequence c = noOptimizeFalse() ? new StringBuffer()
390:                        : "Hello, World!";
391:                assertEquals('e', c.charAt(1));
392:                assertEquals(13, c.length());
393:                assertEquals("ello", c.subSequence(1, 5));
394:                assertTrue(c instanceof  String);
395:            }
396:
397:            public String toString() {
398:                return "com.google.gwt.dev.jjs.test.MiscellaneousTest";
399:            }
400:
401:        }
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