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      1 /*
      2  * Copyright (C) 2009 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * 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 java.lang.reflect;
     18 
     19 public class ConstructorTest extends junit.framework.TestCase {
     20     public void test_getExceptionTypes() throws Exception {
     21         Constructor<?> constructor = ConstructorTestHelper.class.getConstructor(new Class[0]);
     22         Class[] exceptions = constructor.getExceptionTypes();
     23         assertEquals(1, exceptions.length);
     24         assertEquals(IndexOutOfBoundsException.class, exceptions[0]);
     25         // Check that corrupting our array doesn't affect other callers.
     26         exceptions[0] = NullPointerException.class;
     27         exceptions = constructor.getExceptionTypes();
     28         assertEquals(1, exceptions.length);
     29         assertEquals(IndexOutOfBoundsException.class, exceptions[0]);
     30     }
     31 
     32     public void test_getParameterTypes() throws Exception {
     33         Class[] expectedParameters = new Class[] { Object.class };
     34         Constructor<?> constructor = ConstructorTestHelper.class.getConstructor(expectedParameters);
     35         Class[] parameters = constructor.getParameterTypes();
     36         assertEquals(1, parameters.length);
     37         assertEquals(expectedParameters[0], parameters[0]);
     38         // Check that corrupting our array doesn't affect other callers.
     39         parameters[0] = String.class;
     40         parameters = constructor.getParameterTypes();
     41         assertEquals(1, parameters.length);
     42         assertEquals(expectedParameters[0], parameters[0]);
     43     }
     44 
     45     static class ConstructorTestHelper {
     46         public ConstructorTestHelper() throws IndexOutOfBoundsException { }
     47         public ConstructorTestHelper(Object o) { }
     48     }
     49 }
     50