1 /* 2 * contributor license agreements. See the NOTICE file distributed with 3 * this work for additional information regarding copyright ownership. 4 * The ASF licenses this file to You under the Apache License, Version 2.0 5 * (the "License"); you may not use this file except in compliance with 6 * the License. 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 libcore.java.lang; 18 19 import java.io.File; 20 import java.io.IOException; 21 import java.io.InputStream; 22 import java.io.Serializable; 23 import java.lang.annotation.Annotation; 24 import java.lang.annotation.Retention; 25 import java.lang.annotation.RetentionPolicy; 26 import java.lang.reflect.Constructor; 27 import java.lang.reflect.Field; 28 import java.lang.reflect.Method; 29 import java.lang.reflect.ParameterizedType; 30 import java.lang.reflect.Type; 31 import java.lang.reflect.TypeVariable; 32 import java.net.URL; 33 import java.net.URLClassLoader; 34 import java.util.AbstractList; 35 import java.util.Collection; 36 import java.util.List; 37 import java.util.Vector; 38 import tests.support.Support_ClassLoader; 39 import tests.support.resource.Support_Resources; 40 41 @SuppressWarnings("deprecation") 42 public class OldClassTest extends junit.framework.TestCase { 43 final String packageName = getClass().getPackage().getName(); 44 final String classNameInitError1 = packageName + ".TestClass1"; 45 final String classNameInitError2 = packageName + ".TestClass1B"; 46 final String classNameLinkageError = packageName + ".TestClass"; 47 final String sourceJARfile = "illegalClasses.jar"; 48 final String illegalClassName = "illegalClass"; 49 50 @Retention(RetentionPolicy.RUNTIME) 51 public @interface TestAnnotation { 52 String value(); 53 } 54 55 public static class TestClass1C { 56 static TestClass2 tc = new TestClass2(0); 57 58 TestClass1C() { 59 } 60 61 } 62 63 public static class TestClass2 { 64 65 public TestClass2(int i) throws IllegalArgumentException { 66 throw new IllegalArgumentException(); 67 } 68 } 69 70 public static class TestClass3 { 71 private TestClass3() {} 72 } 73 74 interface TestInterface { 75 public static int TEST_INTERFACE_FIELD = 0; 76 77 int getCount(); 78 void setCount(int value); 79 } 80 81 static class StaticMember$Class { 82 class Member2$A { 83 } 84 } 85 86 class Member$Class { 87 class Member3$B { 88 } 89 } 90 91 @Deprecated 92 @TestAnnotation("libcore.java.lang.OldClassTest$ExtendTestClass") 93 public static class ExtendTestClass extends PublicTestClass { 94 95 private static final long serialVersionUID = 1L; 96 97 public enum enumExm {ONE, TWO, THREE}; 98 @Override 99 public void setCount(int value) { 100 101 } 102 } 103 104 public class ExtendTestClass1 extends ExtendTestClass { 105 106 } 107 108 @TestAnnotation("libcore.java.lang.OldClassTest$PublicTestClass") 109 public static class PublicTestClass implements TestInterface, Serializable, Cloneable { 110 111 private static final long serialVersionUID = 1L; 112 113 public static String TEST_FIELD = "test field"; 114 115 Object clazz; 116 117 public PublicTestClass() { 118 class LocalClass { } 119 120 clazz = new LocalClass(); 121 } 122 123 public Object getLocalClass() { 124 class LocalClass {} 125 Object returnedObject = new LocalClass(); 126 return returnedObject; 127 } 128 129 int count = 0; 130 131 public int getCount() { 132 return count; 133 } 134 135 public void setCount(int value) { 136 count = value; 137 } 138 139 private class PrivateClass1 { 140 141 public String toString() { 142 return "PrivateClass0"; 143 } 144 } 145 146 public class PrivateClass2 { 147 148 public String toString() { 149 return "PrivateClass1"; 150 } 151 } 152 } 153 154 public static class TestClass { 155 @SuppressWarnings("unused") 156 private int privField = 1; 157 158 public int pubField = 2; 159 160 private Object cValue = null; 161 162 public Object ack = new Object(); 163 164 @SuppressWarnings("unused") 165 private int privMethod() { 166 return 1; 167 } 168 169 public int pubMethod() { 170 return 2; 171 } 172 173 public Object cValue() { 174 return cValue; 175 } 176 177 public TestClass() { 178 } 179 180 @SuppressWarnings("unused") 181 private TestClass(Object o) { 182 } 183 } 184 185 public static class SubTestClass extends TestClass { 186 } 187 188 interface Intf1 { 189 public int field1 = 1; 190 public int field2 = 1; 191 void test(); 192 } 193 194 interface Intf2 { 195 public int field1 = 1; 196 void test(); 197 } 198 199 interface Intf3 extends Intf1 { 200 public int field1 = 1; 201 } 202 203 interface Intf4 extends Intf1, Intf2 { 204 public int field1 = 1; 205 void test2(int a, Object b); 206 } 207 208 interface Intf5 extends Intf1 { 209 } 210 211 class Cls1 implements Intf2 { 212 public int field1 = 2; 213 public int field2 = 2; 214 public void test() { 215 } 216 } 217 218 class Cls2 extends Cls1 implements Intf1 { 219 public int field1 = 2; 220 @Override 221 public void test() { 222 } 223 } 224 225 class Cls3 implements Intf3, Intf4 { 226 public void test() { 227 } 228 public void test2(int a, Object b) { 229 } 230 } 231 232 static class Cls4 { 233 234 } 235 236 public void test_getAnnotations() { 237 Annotation [] annotations = PublicTestClass.class.getAnnotations(); 238 assertEquals(1, annotations.length); 239 assertEquals(TestAnnotation.class, annotations[0].annotationType()); 240 241 annotations = ExtendTestClass.class.getAnnotations(); 242 assertEquals(2, annotations.length); 243 244 for(int i = 0; i < annotations.length; i++) { 245 Class<? extends Annotation> type = annotations[i].annotationType(); 246 assertTrue("Annotation's type " + i + ": " + type, 247 type.equals(Deprecated.class) || 248 type.equals(TestAnnotation.class)); 249 } 250 } 251 252 public void test_forNameLjava_lang_StringLbooleanLClassLoader() throws Exception { 253 254 ClassLoader pcl = getClass().getClassLoader(); 255 256 Class<?> [] classes = {PublicTestClass.class, ExtendTestClass.class, 257 ExtendTestClass1.class, TestInterface.class, String.class}; 258 259 for(int i = 0; i < classes.length; i++) { 260 Class<?> clazz = Class.forName(classes[i].getName(), true, pcl); 261 assertEquals(classes[i], clazz); 262 263 clazz = Class.forName(classes[i].getName(), false, pcl); 264 assertEquals(classes[i], clazz); 265 } 266 267 Class<?> [] systemClasses = {String.class, Integer.class, Object.class, 268 Object[].class}; 269 270 for(int i = 0; i < systemClasses.length; i++) { 271 Class<?> clazz = Class.forName(systemClasses[i].getName(), true, 272 ClassLoader.getSystemClassLoader()); 273 assertEquals(systemClasses[i], clazz); 274 275 clazz = Class.forName(systemClasses[i].getName(), false, 276 ClassLoader.getSystemClassLoader()); 277 assertEquals(systemClasses[i], clazz); 278 } 279 280 try { 281 Class.forName(null, true, pcl); 282 fail("NullPointerException is not thrown."); 283 } catch(NullPointerException npe) { 284 //expected 285 } 286 287 try { 288 Class.forName("NotExistClass", true, pcl); 289 fail("ClassNotFoundException is not thrown for non existent class."); 290 } catch(ClassNotFoundException cnfe) { 291 //expected 292 } 293 294 try { 295 Class.forName("String", false, pcl); 296 fail("ClassNotFoundException is not thrown for non existent class."); 297 } catch(ClassNotFoundException cnfe) { 298 //expected 299 } 300 301 try { 302 Class.forName("libcore.java.lang.NonexistentClass", false, pcl); 303 fail("ClassNotFoundException is not thrown for non existent class."); 304 } catch(ClassNotFoundException cnfe) { 305 //expected 306 } 307 } 308 309 // AndroidOnly: Class.forName method throws ClassNotFoundException on Android. 310 public void test_forNameLjava_lang_StringLbooleanLClassLoader_AndroidOnly() throws Exception { 311 312 // Android doesn't support loading class files from a jar. 313 try { 314 315 URL url = getClass().getClassLoader().getResource( 316 packageName.replace(".", "/") + "/" + sourceJARfile); 317 318 ClassLoader loader = new URLClassLoader(new URL[] { url }, 319 getClass().getClassLoader()); 320 try { 321 Class.forName(classNameLinkageError, true, loader); 322 fail("LinkageError or ClassNotFoundException expected."); 323 } catch (java.lang.LinkageError le) { 324 // Expected for the RI. 325 } catch (java.lang.ClassNotFoundException ce) { 326 // Expected for Android. 327 } 328 } catch(Exception e) { 329 fail("Unexpected exception was thrown: " + e.toString()); 330 } 331 332 try { 333 Class.forName(classNameInitError2, 334 true, getClass().getClassLoader()); 335 fail("ExceptionInInitializerError or ClassNotFoundException " + 336 "should be thrown."); 337 } catch (java.lang.ExceptionInInitializerError ie) { 338 // Expected for the RI. 339 // Remove this comment to let the test pass on Android. 340 } catch (java.lang.ClassNotFoundException ce) { 341 // Expected for Android. 342 } 343 } 344 345 public void test_getAnnotation() { 346 TestAnnotation target = PublicTestClass.class.getAnnotation(TestAnnotation.class); 347 assertEquals(target.value(), PublicTestClass.class.getName()); 348 349 assertNull(PublicTestClass.class.getAnnotation(Deprecated.class)); 350 351 Deprecated target2 = ExtendTestClass.class.getAnnotation(Deprecated.class); 352 assertNotNull(target2); 353 } 354 355 public void test_getDeclaredAnnotations() { 356 Annotation [] annotations = PublicTestClass.class.getDeclaredAnnotations(); 357 assertEquals(1, annotations.length); 358 359 annotations = ExtendTestClass.class.getDeclaredAnnotations(); 360 assertEquals(2, annotations.length); 361 362 annotations = TestInterface.class.getDeclaredAnnotations(); 363 assertEquals(0, annotations.length); 364 365 annotations = String.class.getDeclaredAnnotations(); 366 assertEquals(0, annotations.length); 367 } 368 369 public void test_getEnclosingClass() { 370 Class clazz = OldClassTest.class.getEnclosingClass(); 371 assertNull(clazz); 372 373 assertEquals(getClass(), Cls1.class.getEnclosingClass()); 374 assertEquals(getClass(), Intf1.class.getEnclosingClass()); 375 assertEquals(getClass(), Cls4.class.getEnclosingClass()); 376 } 377 378 public void test_getEnclosingMethod() { 379 Method clazz = ExtendTestClass.class.getEnclosingMethod(); 380 assertNull(clazz); 381 382 PublicTestClass ptc = new PublicTestClass(); 383 try { 384 assertEquals("getEnclosingMethod returns incorrect method.", 385 PublicTestClass.class.getMethod("getLocalClass", 386 (Class []) null), 387 ptc.getLocalClass().getClass().getEnclosingMethod()); 388 } catch(NoSuchMethodException nsme) { 389 fail("NoSuchMethodException was thrown."); 390 } 391 } 392 393 public void test_getEnclosingConstructor() { 394 395 PublicTestClass ptc = new PublicTestClass(); 396 397 assertEquals("getEnclosingConstructor method returns incorrect class.", 398 PublicTestClass.class.getConstructors()[0], 399 ptc.clazz.getClass().getEnclosingConstructor()); 400 401 assertNull("getEnclosingConstructor should return null for local " + 402 "class declared in method.", 403 ptc.getLocalClass().getClass().getEnclosingConstructor()); 404 405 assertNull("getEnclosingConstructor should return null for local " + 406 "class declared in method.", 407 ExtendTestClass.class.getEnclosingConstructor()); 408 } 409 410 411 public void test_getEnumConstants() { 412 Object [] clazz = ExtendTestClass.class.getEnumConstants(); 413 assertNull(clazz); 414 Object [] constants = TestEnum.class.getEnumConstants(); 415 assertEquals(TestEnum.values().length, constants.length); 416 for(int i = 0; i < constants.length; i++) { 417 assertEquals(TestEnum.values()[i], constants[i]); 418 } 419 assertEquals(0, TestEmptyEnum.class.getEnumConstants().length); 420 } 421 public enum TestEnum { 422 ONE, TWO, THREE 423 } 424 public enum TestEmptyEnum { 425 } 426 427 public void test_getGenericInterfaces() { 428 Type [] types = ExtendTestClass1.class.getGenericInterfaces(); 429 assertEquals(0, types.length); 430 431 Class [] interfaces = {TestInterface.class, Serializable.class, 432 Cloneable.class}; 433 types = PublicTestClass.class.getGenericInterfaces(); 434 assertEquals(interfaces.length, types.length); 435 for(int i = 0; i < types.length; i++) { 436 assertEquals(interfaces[i], types[i]); 437 } 438 439 types = TestInterface.class.getGenericInterfaces(); 440 assertEquals(0, types.length); 441 442 types = List.class.getGenericInterfaces(); 443 assertEquals(1, types.length); 444 assertEquals(Collection.class, ((ParameterizedType)types[0]).getRawType()); 445 446 assertEquals(0, int.class.getGenericInterfaces().length); 447 assertEquals(0, void.class.getGenericInterfaces().length); 448 } 449 450 public void test_getGenericSuperclass () { 451 assertEquals(PublicTestClass.class, 452 ExtendTestClass.class.getGenericSuperclass()); 453 assertEquals(ExtendTestClass.class, 454 ExtendTestClass1.class.getGenericSuperclass()); 455 assertEquals(Object.class, PublicTestClass.class.getGenericSuperclass()); 456 assertEquals(Object.class, String.class.getGenericSuperclass()); 457 assertEquals(null, TestInterface.class.getGenericSuperclass()); 458 459 ParameterizedType type = (ParameterizedType) Vector.class.getGenericSuperclass(); 460 assertEquals(AbstractList.class, type.getRawType()); 461 } 462 463 // AndroidOnly: Uses dalvik.system.PathClassLoader. 464 // Different behavior between cts host and run-core-test") 465 public void test_getPackage() { 466 467 Package thisPackage = getClass().getPackage(); 468 assertEquals("libcore.java.lang", 469 thisPackage.getName()); 470 471 Package stringPackage = String.class.getPackage(); 472 assertNotNull("java.lang", stringPackage.getName()); 473 474 String hyts_package_name = "hyts_package_dex.jar"; 475 File resources = Support_Resources.createTempFolder(); 476 Support_Resources.copyFile(resources, "Package", hyts_package_name); 477 478 String resPath = resources.toString(); 479 if (resPath.charAt(0) == '/' || resPath.charAt(0) == '\\') 480 resPath = resPath.substring(1); 481 482 try { 483 484 URL resourceURL = new URL("file:/" + resPath + "/Package/" 485 + hyts_package_name); 486 487 ClassLoader cl = Support_ClassLoader.getInstance(resourceURL, 488 getClass().getClassLoader()); 489 490 Class clazz = cl.loadClass("C"); 491 assertNull("getPackage for C.class should return null", 492 clazz.getPackage()); 493 494 clazz = cl.loadClass("a.b.C"); 495 Package cPackage = clazz.getPackage(); 496 assertNotNull("getPackage for a.b.C.class should not return null", 497 cPackage); 498 499 /* 500 * URLClassLoader doesn't work on Android for jar files 501 * 502 * URL url = getClass().getClassLoader().getResource( 503 * packageName.replace(".", "/") + "/" + sourceJARfile); 504 * 505 * ClassLoader loader = new URLClassLoader(new URL[] { url }, null); 506 * 507 * try { 508 * Class<?> clazz = loader.loadClass(illegalClassName); 509 * Package pack = clazz.getPackage(); 510 * assertNull(pack); 511 * } catch(ClassNotFoundException cne) { 512 * fail("ClassNotFoundException was thrown for " + illegalClassName); 513 * } 514 */ 515 } catch(Exception e) { 516 fail("Unexpected exception was thrown: " + e.toString()); 517 } 518 } 519 520 public void test_getSigners() { 521 assertNull(void.class.getSigners()); 522 assertNull(PublicTestClass.class.getSigners()); 523 } 524 525 public void test_getSimpleName() { 526 assertEquals("PublicTestClass", PublicTestClass.class.getSimpleName()); 527 assertEquals("void", void.class.getSimpleName()); 528 assertEquals("int[]", int[].class.getSimpleName()); 529 } 530 531 public void test_getTypeParameters() { 532 assertEquals(0, PublicTestClass.class.getTypeParameters().length); 533 TypeVariable [] tv = TempTestClass1.class.getTypeParameters(); 534 assertEquals(1, tv.length); 535 assertEquals(Object.class, tv[0].getBounds()[0]); 536 537 TempTestClass2<String> tc = new TempTestClass2<String>(); 538 tv = tc.getClass().getTypeParameters(); 539 assertEquals(1, tv.length); 540 assertEquals(String.class, tv[0].getBounds()[0]); 541 } 542 543 class TempTestClass1<T> { 544 } 545 546 class TempTestClass2<S extends String> extends TempTestClass1<S> { 547 } 548 549 public void test_isAnnotation() { 550 assertTrue(Deprecated.class.isAnnotation()); 551 assertTrue(TestAnnotation.class.isAnnotation()); 552 assertFalse(PublicTestClass.class.isAnnotation()); 553 assertFalse(String.class.isAnnotation()); 554 } 555 556 public void test_isAnnotationPresent() { 557 assertTrue(PublicTestClass.class.isAnnotationPresent(TestAnnotation.class)); 558 assertFalse(ExtendTestClass1.class.isAnnotationPresent(TestAnnotation.class)); 559 assertFalse(String.class.isAnnotationPresent(Deprecated.class)); 560 assertTrue(ExtendTestClass.class.isAnnotationPresent(TestAnnotation.class)); 561 assertTrue(ExtendTestClass.class.isAnnotationPresent(Deprecated.class)); 562 } 563 564 public void test_isAnonymousClass() { 565 assertFalse(PublicTestClass.class.isAnonymousClass()); 566 assertTrue((new Thread() {}).getClass().isAnonymousClass()); 567 } 568 569 public void test_isEnum() { 570 assertFalse(PublicTestClass.class.isEnum()); 571 assertFalse(ExtendTestClass.class.isEnum()); 572 assertTrue(TestEnum.ONE.getClass().isEnum()); 573 assertTrue(TestEnum.class.isEnum()); 574 } 575 576 public void test_isLocalClass() { 577 assertFalse(ExtendTestClass.class.isLocalClass()); 578 assertFalse(TestInterface.class.isLocalClass()); 579 assertFalse(TestEnum.class.isLocalClass()); 580 class InternalClass {} 581 assertTrue(InternalClass.class.isLocalClass()); 582 } 583 584 public void test_isMemberClass() { 585 assertFalse(OldClassTest.class.isMemberClass()); 586 assertFalse(String.class.isMemberClass()); 587 assertTrue(TestEnum.class.isMemberClass()); 588 assertTrue(StaticMember$Class.class.isMemberClass()); 589 } 590 591 public void test_isSynthetic() { 592 assertFalse("Returned true for non synthetic class.", 593 ExtendTestClass.class.isSynthetic()); 594 assertFalse("Returned true for non synthetic class.", 595 TestInterface.class.isSynthetic()); 596 assertFalse("Returned true for non synthetic class.", 597 String.class.isSynthetic()); 598 } 599 600 public void test_getCanonicalName() { 601 Class [] classArray = { int.class, int[].class, String.class, 602 PublicTestClass.class, TestInterface.class, 603 ExtendTestClass.class }; 604 String [] classNames = {"int", "int[]", "java.lang.String", 605 "libcore.java.lang.OldClassTest.PublicTestClass", 606 "libcore.java.lang.OldClassTest.TestInterface", 607 "libcore.java.lang.OldClassTest.ExtendTestClass"}; 608 609 for(int i = 0; i < classArray.length; i++) { 610 assertEquals(classNames[i], classArray[i].getCanonicalName()); 611 } 612 } 613 614 public void test_getClassLoader() { 615 assertEquals(ExtendTestClass.class.getClassLoader(), 616 PublicTestClass.class.getClassLoader()); 617 618 assertNull(int.class.getClassLoader()); 619 assertNull(void.class.getClassLoader()); 620 } 621 622 public void test_getClasses() { 623 assertEquals("Incorrect class array returned", 624 11, OldClassTest.class.getClasses().length); 625 } 626 627 public void test_getDeclaredClasses() { 628 Class [] declClasses = Object.class.getDeclaredClasses(); 629 assertEquals("Incorrect length of declared classes array is returned " + 630 "for Object.", 0, declClasses.length); 631 632 declClasses = PublicTestClass.class.getDeclaredClasses(); 633 assertEquals(2, declClasses.length); 634 635 assertEquals(0, int.class.getDeclaredClasses().length); 636 assertEquals(0, void.class.getDeclaredClasses().length); 637 638 for(int i = 0; i < declClasses.length; i++) { 639 Constructor<?> constr = declClasses[i].getDeclaredConstructors()[0]; 640 constr.setAccessible(true); 641 PublicTestClass publicClazz = new PublicTestClass(); 642 try { 643 Object o = constr.newInstance(publicClazz); 644 assertTrue("Returned incorrect class: " + o.toString(), 645 o.toString().startsWith("PrivateClass")); 646 } catch(Exception e) { 647 fail("Unexpected exception was thrown: " + e.toString()); 648 } 649 } 650 651 declClasses = TestInterface.class.getDeclaredClasses(); 652 assertEquals(0, declClasses.length); 653 } 654 655 public void test_getDeclaredConstructor$Ljava_lang_Class() throws Exception { 656 try { 657 TestClass.class.getDeclaredConstructor(String.class); 658 fail("NoSuchMethodException should be thrown."); 659 } catch(NoSuchMethodException nsme) { 660 //expected 661 } 662 } 663 664 public void test_getDeclaredFieldLjava_lang_String() throws Exception { 665 try { 666 TestClass.class.getDeclaredField(null); 667 fail("NullPointerException is not thrown."); 668 } catch(NullPointerException npe) { 669 //expected 670 } 671 672 try { 673 TestClass.class.getDeclaredField("NonExistentField"); 674 fail("NoSuchFieldException is not thrown."); 675 } catch(NoSuchFieldException nsfe) { 676 //expected 677 } 678 } 679 680 public void test_getDeclaredMethodLjava_lang_String$Ljava_lang_Class() throws Exception { 681 try { 682 TestClass.class.getDeclaredMethod(null, new Class[0]); 683 fail("NullPointerException is not thrown."); 684 } catch(NullPointerException npe) { 685 //expected 686 } 687 688 try { 689 TestClass.class.getDeclaredMethod("NonExistentMethod", new Class[0]); 690 fail("NoSuchMethodException is not thrown."); 691 } catch(NoSuchMethodException nsme) { 692 //expected 693 } 694 } 695 696 public void test_getMethodLjava_lang_String$Ljava_lang_Class() throws Exception { 697 Method m = ExtendTestClass1.class.getMethod("getCount", new Class[0]); 698 assertEquals("Returned incorrect method", 0, ((Integer) (m.invoke(new ExtendTestClass1()))) 699 .intValue()); 700 701 try { 702 m = TestClass.class.getMethod("init", new Class[0]); 703 fail("Failed to throw exception accessing to init method"); 704 } catch (NoSuchMethodException e) { 705 // Correct 706 return; 707 } 708 709 try { 710 TestClass.class.getMethod("pubMethod", new Class[0]); 711 fail("NullPointerException is not thrown."); 712 } catch(NullPointerException npe) { 713 //expected 714 } 715 } 716 717 public void test_getDeclaringClass() { 718 assertEquals(OldClassTest.class, Intf1.class.getDeclaringClass()); 719 assertEquals(null, Serializable.class.getDeclaringClass()); 720 assertEquals(null, OldClassTest.class.getDeclaringClass()); 721 722 assertEquals(OldClassTest.class, PublicTestClass.class.getDeclaringClass()); 723 724 // https://code.google.com/p/android/issues/detail?id=61003 725 assertEquals(null, new Object() {}.getClass().getDeclaringClass()); 726 assertEquals(null, new AnonymousMemberFixture().instanceOfAnonymousClass.getClass().getDeclaringClass()); 727 728 // Arrays, primitive types, and void all return null. 729 assertEquals(null, char[].class.getDeclaringClass()); 730 assertEquals(null, int.class.getDeclaringClass()); 731 assertEquals(null, void.class.getDeclaringClass()); 732 } 733 734 public void test_getFieldLjava_lang_String() throws Exception { 735 Field f = TestClass.class.getField("pubField"); 736 assertEquals("Returned incorrect field", 2, f.getInt(new TestClass())); 737 738 f = PublicTestClass.class.getField("TEST_FIELD"); 739 assertEquals("Returned incorrect field", "test field", 740 f.get(new PublicTestClass())); 741 742 f = PublicTestClass.class.getField("TEST_INTERFACE_FIELD"); 743 assertEquals("Returned incorrect field", 0, 744 f.getInt(new PublicTestClass())); 745 746 try { 747 TestClass.class.getField(null); 748 fail("NullPointerException is thrown."); 749 } catch(NullPointerException npe) { 750 //expected 751 } 752 } 753 754 public void test_getFields2() throws Exception { 755 Field[] f; 756 Field expected = null; 757 758 f = PublicTestClass.class.getFields(); 759 assertEquals("Test 1: Incorrect number of fields;", 2, f.length); 760 761 f = Cls2.class.getFields(); 762 assertEquals("Test 2: Incorrect number of fields;", 6, f.length); 763 764 f = Cls3.class.getFields(); 765 assertEquals("Test 2: Incorrect number of fields;", 5, f.length); 766 767 for (Field field : f) { 768 if (field.toString().equals("public static final int " 769 + "libcore.java.lang.OldClassTest$Intf3.field1")) { 770 expected = field; 771 break; 772 } 773 } 774 if (expected == null) { 775 fail("Test 3: getFields() did not return all fields."); 776 } 777 assertEquals("Test 4: Incorrect field;", expected, 778 Cls3.class.getField("field1")); 779 780 expected = null; 781 for (Field field : f) { 782 if(field.toString().equals("public static final int " + 783 "libcore.java.lang.OldClassTest$Intf1.field2")) { 784 expected = field; 785 break; 786 } 787 } 788 if (expected == null) { 789 fail("Test 5: getFields() did not return all fields."); 790 } 791 assertEquals("Test 6: Incorrect field;", expected, 792 Cls3.class.getField("field2")); 793 } 794 795 public void test_getFields() throws Exception { 796 Field expected = null; 797 Field[] fields = Cls2.class.getFields(); 798 for (Field field : fields) { 799 if(field.toString().equals("public int libcore.java.lang.OldClassTest$Cls2.field1")) { 800 expected = field; 801 break; 802 } 803 } 804 if (expected == null) { 805 fail("getFields() did not return all fields"); 806 } 807 assertEquals(expected, Cls2.class.getField("field1")); 808 } 809 810 public void test_getInterfaces() { 811 Class [] interfaces1 = Cls1.class.getInterfaces(); 812 assertEquals(1, interfaces1.length); 813 assertEquals(Intf2.class, interfaces1[0]); 814 815 Class [] interfaces2 = Cls2.class.getInterfaces(); 816 assertEquals(1, interfaces2.length); 817 assertEquals(Intf1.class, interfaces2[0]); 818 819 Class [] interfaces3 = Cls3.class.getInterfaces(); 820 assertEquals(2, interfaces3.length); 821 assertEquals(Intf3.class, interfaces3[0]); 822 assertEquals(Intf4.class, interfaces3[1]); 823 824 Class [] interfaces4 = Cls4.class.getInterfaces(); 825 assertEquals(0, interfaces4.length); 826 } 827 828 public void test_getMethods() throws Exception { 829 assertEquals("Incorrect number of methods", 10, 830 Cls2.class.getMethods().length); 831 assertEquals("Incorrect number of methods", 11, 832 Cls3.class.getMethods().length); 833 834 Method expected = null; 835 Method[] methods = Cls2.class.getMethods(); 836 for (Method method : methods) { 837 if(method.toString().equals("public void libcore.java.lang.OldClassTest$Cls2.test()")) { 838 expected = method; 839 break; 840 } 841 } 842 if (expected == null) { 843 fail("getMethods() did not return all methods"); 844 } 845 assertEquals(expected, Cls2.class.getMethod("test")); 846 847 expected = null; 848 methods = Cls3.class.getMethods(); 849 for (Method method : methods) { 850 if(method.toString().equals("public void libcore.java.lang.OldClassTest$Cls3.test()")) { 851 expected = method; 852 break; 853 } 854 } 855 if (expected == null) { 856 fail("getMethods() did not return all methods"); 857 } 858 assertEquals(expected, Cls3.class.getMethod("test")); 859 860 expected = null; 861 methods = Cls3.class.getMethods(); 862 for (Method method : methods) { 863 if(method.toString().equals("public void libcore.java.lang.OldClassTest$Cls3.test2(int," 864 + "java.lang.Object)")) { 865 expected = method; 866 break; 867 } 868 } 869 if (expected == null) { 870 fail("getMethods() did not return all methods"); 871 } 872 873 assertEquals(expected, Cls3.class.getMethod("test2", int.class, 874 Object.class)); 875 876 assertEquals("Incorrect number of methods", 1, 877 Intf5.class.getMethods().length); 878 } 879 880 public void test_getResourceLjava_lang_String() { 881 assertNull(getClass().getResource( 882 "libcore/java/lang/NonExistentResource")); 883 assertNull(getClass().getResource(getClass().getName() + "NonExistentResource")); 884 } 885 886 public void test_getResourceAsStreamLjava_lang_String() throws Exception { 887 String name = "/HelloWorld.txt"; 888 assertNotNull("the file " + name + " can not be found in this " + 889 "directory", getClass().getResourceAsStream(name)); 890 891 final String nameBadURI = "org/apache/harmony/luni/tests/test_resource.txt"; 892 assertNull("the file " + nameBadURI + " should not be found in this directory", 893 getClass().getResourceAsStream(nameBadURI)); 894 895 ClassLoader pcl = getClass().getClassLoader(); 896 Class<?> clazz = pcl.loadClass("libcore.java.lang.OldClassTest"); 897 assertNotNull(clazz.getResourceAsStream("HelloWorld1.txt")); 898 899 try { 900 getClass().getResourceAsStream(null); 901 fail("NullPointerException is not thrown."); 902 } catch(NullPointerException npe) { 903 //expected 904 } 905 } 906 907 public void test_isAssignableFromLjava_lang_Class() { 908 assertFalse("returned true not assignable classes", 909 Integer.class.isAssignableFrom(String.class)); 910 911 try { 912 Runnable.class.isAssignableFrom(null); 913 fail("NullPointerException is not thrown."); 914 } catch(NullPointerException npe) { 915 //expected 916 } 917 } 918 919 public void test_newInstance() throws Exception { 920 try { 921 TestClass3.class.newInstance(); 922 fail("IllegalAccessException is not thrown."); 923 } catch(IllegalAccessException iae) { 924 //expected 925 } 926 927 try { 928 TestClass1C.class.newInstance(); 929 fail("ExceptionInInitializerError should be thrown."); 930 } catch (java.lang.ExceptionInInitializerError ie) { 931 //expected 932 } 933 } 934 935 public void test_asSubclass1() { 936 assertEquals(ExtendTestClass.class, 937 ExtendTestClass.class.asSubclass(PublicTestClass.class)); 938 939 assertEquals(PublicTestClass.class, 940 PublicTestClass.class.asSubclass(TestInterface.class)); 941 942 assertEquals(ExtendTestClass1.class, 943 ExtendTestClass1.class.asSubclass(PublicTestClass.class)); 944 945 assertEquals(PublicTestClass.class, 946 PublicTestClass.class.asSubclass(PublicTestClass.class)); 947 } 948 949 public void test_asSubclass2() { 950 try { 951 PublicTestClass.class.asSubclass(ExtendTestClass.class); 952 fail("Test 1: ClassCastException expected."); 953 } catch(ClassCastException cce) { 954 // Expected. 955 } 956 957 try { 958 PublicTestClass.class.asSubclass(String.class); 959 fail("Test 2: ClassCastException expected."); 960 } catch(ClassCastException cce) { 961 // Expected. 962 } 963 } 964 965 public void test_cast() { 966 Object o = PublicTestClass.class.cast(new ExtendTestClass()); 967 assertTrue(o instanceof ExtendTestClass); 968 969 try { 970 ExtendTestClass.class.cast(new PublicTestClass()); 971 fail("Test 1: ClassCastException expected."); 972 } catch(ClassCastException cce) { 973 //expected 974 } 975 976 try { 977 ExtendTestClass.class.cast(new String()); 978 fail("ClassCastException is not thrown."); 979 } catch(ClassCastException cce) { 980 //expected 981 } 982 } 983 984 public void test_desiredAssertionStatus() { 985 Class [] classArray = { Object.class, Integer.class, 986 String.class, PublicTestClass.class, 987 ExtendTestClass.class, ExtendTestClass1.class}; 988 989 for(int i = 0; i < classArray.length; i++) { 990 assertFalse("assertion status for " + classArray[i], 991 classArray[i].desiredAssertionStatus()); 992 } 993 } 994 995 public void testGetResourceAsStream1() throws IOException { 996 Class clazz = getClass(); 997 998 InputStream stream = clazz.getResourceAsStream("HelloWorld.txt"); 999 assertNotNull(stream); 1000 1001 byte[] buffer = new byte[20]; 1002 int length = stream.read(buffer); 1003 String s = new String(buffer, 0, length); 1004 assertEquals("Hello, World.\n", s); 1005 1006 stream.close(); 1007 } 1008 1009 public void testGetResourceAsStream2() throws IOException { 1010 Class clazz = getClass(); 1011 1012 InputStream stream = clazz.getResourceAsStream("/libcore/java/lang/HelloWorld.txt"); 1013 assertNotNull(stream); 1014 1015 byte[] buffer = new byte[20]; 1016 int length = stream.read(buffer); 1017 String s = new String(buffer, 0, length); 1018 assertEquals("Hello, World.\n", s); 1019 1020 stream.close(); 1021 1022 try { 1023 clazz.getResourceAsStream(null); 1024 fail("NullPointerException is not thrown."); 1025 } catch(NullPointerException npe) { 1026 //expected 1027 } 1028 assertNull(clazz.getResourceAsStream("/NonExistentResource")); 1029 assertNull(clazz.getResourceAsStream("libcore/java/lang/HelloWorld.txt")); 1030 } 1031 } 1032 1033 class AnonymousMemberFixture { 1034 Object instanceOfAnonymousClass = new Object() {}; 1035 } 1036
