| /* |
| * Copyright (C) 2008 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package libcore.java.lang.reflect; |
| |
| import java.lang.reflect.Constructor; |
| import java.lang.reflect.Field; |
| import java.lang.reflect.Method; |
| import java.lang.reflect.Modifier; |
| import java.util.ArrayList; |
| import java.util.HashSet; |
| import java.util.Set; |
| import junit.framework.TestCase; |
| |
| public final class OldAndroidClassTest extends TestCase { |
| private static final String packageName = "libcore.java.lang.reflect"; |
| |
| public void testNewInstance() throws Exception { |
| Class helloClass = Class.forName(OldAndroidClassTest.class.getName()); |
| Object instance = helloClass.newInstance(); |
| assertNotNull(instance); |
| } |
| |
| public void testForName() throws Exception { |
| try { |
| Class.forName("this.class.DoesNotExist"); |
| fail(); |
| } catch (ClassNotFoundException expected) { |
| } |
| } |
| |
| public void testNewInstancePrivateConstructor() throws Exception { |
| try { |
| Class.forName(packageName + ".ClassWithPrivateConstructor").newInstance(); |
| fail(); |
| } catch (IllegalAccessException expected) { |
| } |
| } |
| |
| public void testGetDeclaredMethod() throws Exception { |
| Class helloClass = Class.forName(OldAndroidClassTest.class.getName()); |
| Method method = helloClass.getDeclaredMethod("method", (Class[]) null); |
| method.invoke(new OldAndroidClassTest(), (Object[]) null); |
| } |
| |
| public void testGetDeclaredMethodWithArgs() throws Exception { |
| Class helloClass = Class.forName(OldAndroidClassTest.class.getName()); |
| Method method = helloClass.getDeclaredMethod("methodWithArgs", Object.class); |
| |
| Object invokeArgs[] = new Object[1]; |
| invokeArgs[0] = "Hello"; |
| Object ret = method.invoke(new OldAndroidClassTest(), invokeArgs); |
| assertEquals(ret, invokeArgs[0]); |
| } |
| |
| public void testGetDeclaredMethodPrivate() throws Exception { |
| Class helloClass = Class.forName(OldAndroidClassTest.class.getName()); |
| Method method = helloClass.getDeclaredMethod("privateMethod", (Class[]) null); |
| method.invoke(new OldAndroidClassTest(), (Object[]) null); |
| } |
| |
| public void testGetSuperclass() throws Exception { |
| Class helloClass = Class.forName(OldAndroidClassTest.class.getName()); |
| Class objectClass = Class.forName("java.lang.Object"); |
| assertEquals(helloClass.getSuperclass().getSuperclass().getSuperclass(), objectClass); |
| } |
| |
| public void testIsAssignableFrom() throws Exception { |
| Class helloClass = Class.forName(OldAndroidClassTest.class.getName()); |
| Class objectClass = Class.forName("java.lang.Object"); |
| assertTrue(objectClass.isAssignableFrom(helloClass)); |
| assertFalse(helloClass.isAssignableFrom(objectClass)); |
| } |
| |
| public void testGetConstructor() throws Exception { |
| Class helloClass = Class.forName(OldAndroidClassTest.class.getName()); |
| Constructor constructor = helloClass.getConstructor((Class[]) null); |
| assertNotNull(constructor); |
| } |
| |
| public void testGetModifiers() throws Exception { |
| Class helloClass = Class.forName(OldAndroidClassTest.class.getName()); |
| assertTrue(Modifier.isPublic(helloClass.getModifiers())); |
| } |
| |
| public void testGetMethod() throws Exception { |
| Class helloClass = Class.forName(OldAndroidClassTest.class.getName()); |
| helloClass.getMethod("method", (Class[]) null); |
| try { |
| Class[] argTypes = new Class[1]; |
| argTypes[0] = helloClass; |
| helloClass.getMethod("method", argTypes); |
| fail(); |
| } catch (NoSuchMethodException expected) { |
| } |
| } |
| |
| // http://code.google.com/p/android/issues/detail?id=14 |
| public void testFieldSet() throws Exception { |
| OldAndroidClassTest.SimpleClass obj = new OldAndroidClassTest.SimpleClass(); |
| Field field = obj.getClass().getDeclaredField("str"); |
| field.set(obj, null); |
| } |
| |
| public class SimpleClass { |
| public String str; |
| } |
| |
| public Object methodWithArgs(Object o) { |
| return o; |
| } |
| |
| boolean methodInvoked; |
| |
| public void method() { |
| methodInvoked = true; |
| } |
| |
| boolean privateMethodInvoked; |
| |
| public void privateMethod() { |
| privateMethodInvoked = true; |
| } |
| |
| // Regression for 1018067: Class.getMethods() returns the same method over |
| // and over again from all base classes |
| public void testClassGetMethodsNoDupes() { |
| Method[] methods = ArrayList.class.getMethods(); |
| Set<String> set = new HashSet<String>(); |
| |
| for (Method method : methods) { |
| String signature = method.toString(); |
| |
| int par = signature.indexOf('('); |
| int dot = signature.lastIndexOf('.', par); |
| |
| signature = signature.substring(dot + 1); |
| |
| assertFalse("Duplicate " + signature, set.contains(signature)); |
| set.add(signature); |
| } |
| } |
| |
| interface MyInterface { |
| void foo(); |
| } |
| |
| interface MyOtherInterface extends MyInterface { |
| void bar(); |
| } |
| |
| abstract class MyClass implements MyOtherInterface { |
| public void gabba() { |
| } |
| |
| public void hey() { |
| } |
| } |
| |
| // Check if we also reflect methods from interfaces |
| public void testGetMethodsInterfaces() { |
| Method[] methods = MyInterface.class.getMethods(); |
| assertTrue(hasMethod(methods, ".foo(")); |
| |
| methods = MyOtherInterface.class.getMethods(); |
| assertTrue(hasMethod(methods, ".foo(")); |
| assertTrue(hasMethod(methods, ".bar(")); |
| |
| methods = MyClass.class.getMethods(); |
| assertTrue(hasMethod(methods, ".foo(")); |
| assertTrue(hasMethod(methods, ".bar(")); |
| |
| assertTrue(hasMethod(methods, ".gabba(")); |
| assertTrue(hasMethod(methods, ".hey(")); |
| |
| assertTrue(hasMethod(methods, ".toString(")); |
| } |
| |
| private boolean hasMethod(Method[] methods, String signature) { |
| for (Method method : methods) { |
| if (method.toString().contains(signature)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| // Test for Class.getPackage(); |
| public void testClassGetPackage() { |
| assertNotNull(getClass().getPackage()); |
| assertEquals(packageName, getClass().getPackage().getName()); |
| assertEquals("Unknown", getClass().getPackage().getSpecificationTitle()); |
| |
| Package p = Object.class.getPackage(); |
| assertNotNull(p); |
| assertEquals("java.lang", p.getName()); |
| assertSame(p, Object.class.getPackage()); |
| } |
| |
| // Regression test for #1123708: Problem with getCanonicalName(), |
| // getSimpleName(), and getPackage(). |
| // |
| // A couple of interesting cases need to be checked: Top-level classes, |
| // member classes, local classes, and anonymous classes. Also, boundary |
| // cases with '$' in the class names are checked, since the '$' is used |
| // as the separator between outer and inner class, so this might lead |
| // to problems (it did in the previous implementation). |
| // |
| // Caution: Adding local or anonymous classes elsewhere in this |
| // file might affect the test. |
| private class MemberClass { |
| } |
| |
| private class Mi$o$oup { |
| } |
| |
| public void testVariousClassNames() { |
| Class<?> clazz = this.getClass(); |
| String pkg = (clazz.getPackage() == null ? "" : clazz.getPackage().getName() + "."); |
| |
| // Simple, top-level class |
| |
| assertEquals(pkg + "OldAndroidClassTest", clazz.getName()); |
| assertEquals("OldAndroidClassTest", clazz.getSimpleName()); |
| assertEquals(pkg + "OldAndroidClassTest", clazz.getCanonicalName()); |
| |
| clazz = MemberClass.class; |
| |
| assertEquals(pkg + "OldAndroidClassTest$MemberClass", clazz.getName()); |
| assertEquals("MemberClass", clazz.getSimpleName()); |
| assertEquals(pkg + "OldAndroidClassTest.MemberClass", clazz.getCanonicalName()); |
| |
| class LocalClass { |
| // This space intentionally left blank. |
| } |
| |
| clazz = LocalClass.class; |
| |
| assertEquals(pkg + "OldAndroidClassTest$1LocalClass", clazz.getName()); |
| assertEquals("LocalClass", clazz.getSimpleName()); |
| assertNull(clazz.getCanonicalName()); |
| |
| clazz = new Object() { }.getClass(); |
| |
| assertEquals(pkg + "OldAndroidClassTest$1", clazz.getName()); |
| assertEquals("", clazz.getSimpleName()); |
| assertNull(clazz.getCanonicalName()); |
| |
| // Weird special cases with dollar in name. |
| |
| clazz = Mou$$aka.class; |
| |
| assertEquals(pkg + "Mou$$aka", clazz.getName()); |
| assertEquals("Mou$$aka", clazz.getSimpleName()); |
| assertEquals(pkg + "Mou$$aka", clazz.getCanonicalName()); |
| |
| clazz = Mi$o$oup.class; |
| |
| assertEquals(pkg + "OldAndroidClassTest$Mi$o$oup", clazz.getName()); |
| assertEquals("Mi$o$oup", clazz.getSimpleName()); |
| assertEquals(pkg + "OldAndroidClassTest.Mi$o$oup", clazz.getCanonicalName()); |
| |
| class Ma$hedPotatoe$ { |
| } |
| |
| clazz = Ma$hedPotatoe$.class; |
| |
| assertEquals(pkg + "OldAndroidClassTest$1Ma$hedPotatoe$", clazz.getName()); |
| assertEquals("Ma$hedPotatoe$", clazz.getSimpleName()); |
| assertNull(clazz.getCanonicalName()); |
| } |
| |
| public void testLocalMemberClass() { |
| Class<?> clazz = this.getClass(); |
| |
| assertFalse(clazz.isMemberClass()); |
| assertFalse(clazz.isLocalClass()); |
| |
| clazz = MemberClass.class; |
| |
| assertTrue(clazz.isMemberClass()); |
| assertFalse(clazz.isLocalClass()); |
| |
| class OtherLocalClass { |
| } |
| |
| clazz = OtherLocalClass.class; |
| |
| assertFalse(clazz.isMemberClass()); |
| assertTrue(clazz.isLocalClass()); |
| |
| clazz = new Object() { }.getClass(); |
| |
| assertFalse(clazz.isMemberClass()); |
| assertFalse(clazz.isLocalClass()); |
| } |
| } |
| |
| class ClassWithPrivateConstructor { |
| private ClassWithPrivateConstructor() { |
| } |
| } |
| |
| class Mou$$aka { |
| } |