1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one or more 3 * contributor license agreements. See the NOTICE file distributed with 4 * this work for additional information regarding copyright ownership. 5 * The ASF licenses this file to You under the Apache License, Version 2.0 6 * (the "License"); you may not use this file except in compliance with 7 * the License. You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 18 package org.apache.harmony.tests.java.lang.reflect; 19 20 import java.io.ByteArrayOutputStream; 21 import java.io.CharArrayWriter; 22 import java.io.PrintStream; 23 import java.io.PrintWriter; 24 import java.lang.reflect.Constructor; 25 import java.lang.reflect.InvocationTargetException; 26 import java.lang.reflect.Method; 27 import java.lang.reflect.Modifier; 28 29 public class InvocationTargetExceptionTest extends junit.framework.TestCase { 30 31 static class TestMethod { 32 public TestMethod() { 33 } 34 35 public void voidMethod() throws IllegalArgumentException { 36 } 37 38 public void parmTest(int x, short y, String s, boolean bool, Object o, 39 long l, byte b, char c, double d, float f) { 40 } 41 42 public int intMethod() { 43 return 1; 44 } 45 46 public static final void printTest(int x, short y, String s, 47 boolean bool, Object o, long l, byte b, char c, double d, 48 float f) { 49 } 50 51 public double doubleMethod() { 52 return 1.0; 53 } 54 55 public short shortMethod() { 56 return (short) 1; 57 } 58 59 public byte byteMethod() { 60 return (byte) 1; 61 } 62 63 public float floatMethod() { 64 return 1.0f; 65 } 66 67 public long longMethod() { 68 return 1l; 69 } 70 71 public char charMethod() { 72 return 'T'; 73 } 74 75 public Object objectMethod() { 76 return new Object(); 77 } 78 79 private static void prstatic() { 80 } 81 82 public static void pustatic() { 83 } 84 85 public static synchronized void pustatsynch() { 86 } 87 88 public static int invokeStaticTest() { 89 return 1; 90 } 91 92 public int invokeInstanceTest() { 93 return 1; 94 } 95 96 private int privateInvokeTest() { 97 return 1; 98 } 99 100 public int invokeExceptionTest() throws NullPointerException { 101 throw new NullPointerException(); 102 } 103 104 public static synchronized native void pustatsynchnat(); 105 106 } 107 108 abstract class AbstractTestMethod { 109 public abstract void puabs(); 110 } 111 112 class SubInvocationTargetException extends InvocationTargetException {} 113 114 /** 115 * java.lang.reflect.InvocationTargetException#InvocationTargetException() 116 */ 117 public void test_Constructor() throws Exception { 118 Constructor<InvocationTargetException> ctor = InvocationTargetException.class 119 .getDeclaredConstructor(); 120 assertNotNull("Parameterless constructor does not exist.", ctor); 121 assertTrue("Constructor is not protected", Modifier.isProtected(ctor 122 .getModifiers())); 123 //create an instance of a subtype using this constructor 124 SubInvocationTargetException subException = new SubInvocationTargetException(); 125 } 126 127 /** 128 * java.lang.reflect.InvocationTargetException#InvocationTargetException(java.lang.Throwable) 129 */ 130 public void test_ConstructorLjava_lang_Throwable() { 131 // Test for method 132 // java.lang.reflect.InvocationTargetException(java.lang.Throwable) 133 try { 134 Method mth = TestMethod.class.getDeclaredMethod( 135 "invokeExceptionTest", new Class[0]); 136 Object[] args = { Object.class }; 137 Object ret = mth.invoke(new TestMethod(), new Object[0]); 138 } catch (InvocationTargetException e) { 139 // Correct behaviour 140 return; 141 } catch (NoSuchMethodException e) { 142 } catch (IllegalAccessException e) { 143 } 144 fail("Failed to throw exception"); 145 } 146 147 /** 148 * java.lang.reflect.InvocationTargetException#InvocationTargetException(java.lang.Throwable, 149 * java.lang.String) 150 */ 151 public void test_ConstructorLjava_lang_ThrowableLjava_lang_String() { 152 // Test for method 153 // java.lang.reflect.InvocationTargetException(java.lang.Throwable, 154 // java.lang.String) 155 try { 156 Method mth = TestMethod.class.getDeclaredMethod( 157 "invokeExceptionTest", new Class[0]); 158 Object[] args = { Object.class }; 159 Object ret = mth.invoke(new TestMethod(), new Object[0]); 160 } catch (InvocationTargetException e) { 161 // Correct behaviour 162 return; 163 } catch (NoSuchMethodException e) { 164 ; 165 } catch (IllegalAccessException e) { 166 } 167 fail("Failed to throw exception"); 168 } 169 170 /** 171 * java.lang.reflect.InvocationTargetException#getTargetException() 172 */ 173 public void test_getTargetException() { 174 // Test for method java.lang.Throwable 175 // java.lang.reflect.InvocationTargetException.getTargetException() 176 try { 177 Method mth = TestMethod.class.getDeclaredMethod( 178 "invokeExceptionTest", new Class[0]); 179 Object[] args = { Object.class }; 180 Object ret = mth.invoke(new TestMethod(), new Object[0]); 181 } catch (InvocationTargetException e) { 182 // Correct behaviour 183 assertTrue("Returned incorrect target exception", e 184 .getTargetException() instanceof NullPointerException); 185 return; 186 } catch (Exception e) { 187 fail("Exception during constructor test : " + e.getMessage()); 188 } 189 fail("Failed to throw exception"); 190 } 191 192 /** 193 * java.lang.reflect.InvocationTargetException#getCause() 194 */ 195 public void test_getCause() { 196 // java.lang.reflect.InvocationTargetException.getCause() 197 try { 198 Method mth = TestMethod.class.getDeclaredMethod( 199 "invokeExceptionTest", new Class[0]); 200 Object[] args = {Object.class}; 201 Object ret = mth.invoke(new TestMethod(), new Object[0]); 202 } catch (InvocationTargetException e) { 203 // Correct behaviour 204 assertTrue("Returned incorrect cause", 205 e.getCause() instanceof NullPointerException); 206 return; 207 } catch (Exception e) { 208 fail("Exception during InvocationTargetException test : " 209 + e.getMessage()); 210 } 211 fail("Failed to throw exception"); 212 } 213 214 /** 215 * java.lang.reflect.InvocationTargetException#printStackTrace() 216 */ 217 public void test_printStackTrace() { 218 // Test for method void 219 // java.lang.reflect.InvocationTargetException.printStackTrace() 220 try { 221 ByteArrayOutputStream bao = new ByteArrayOutputStream(); 222 PrintStream ps = new PrintStream(bao); 223 PrintStream oldErr = System.err; 224 System.setErr(ps); 225 InvocationTargetException ite = new InvocationTargetException(null); 226 ite.printStackTrace(); 227 System.setErr(oldErr); 228 229 String s = new String(bao.toByteArray()); 230 231 assertTrue("Incorrect Stack trace: " + s, s != null 232 && s.length() > 300); 233 } catch (Exception e) { 234 fail("printStackTrace() caused exception : " + e.getMessage()); 235 } 236 } 237 238 /** 239 * java.lang.reflect.InvocationTargetException#printStackTrace(java.io.PrintStream) 240 */ 241 public void test_printStackTraceLjava_io_PrintStream() { 242 // Test for method void 243 // java.lang.reflect.InvocationTargetException.printStackTrace(java.io.PrintStream) 244 assertTrue("Tested via test_printStackTrace().", true); 245 ByteArrayOutputStream bao = new ByteArrayOutputStream(); 246 PrintStream ps = new PrintStream(bao); 247 InvocationTargetException ite = new InvocationTargetException( 248 new InvocationTargetException(null)); 249 ite.printStackTrace(ps); 250 String s = bao.toString(); 251 assertTrue("printStackTrace failed." + s.length(), s != null 252 && s.length() > 400); 253 } 254 255 /** 256 * java.lang.reflect.InvocationTargetException#printStackTrace(java.io.PrintWriter) 257 */ 258 public void test_printStackTraceLjava_io_PrintWriter() { 259 // Test for method void 260 // java.lang.reflect.InvocationTargetException.printStackTrace(java.io.PrintWriter) 261 try { 262 PrintWriter pw; 263 InvocationTargetException ite; 264 String s; 265 CharArrayWriter caw = new CharArrayWriter(); 266 pw = new PrintWriter(caw); 267 ite = new InvocationTargetException(new InvocationTargetException( 268 null)); 269 ite.printStackTrace(pw); 270 271 s = caw.toString(); 272 assertTrue("printStackTrace failed." + s.length(), s != null 273 && s.length() > 400); 274 pw.close(); 275 276 ByteArrayOutputStream bao = new ByteArrayOutputStream(); 277 pw = new PrintWriter(bao); 278 ite = new InvocationTargetException(new InvocationTargetException( 279 null)); 280 ite.printStackTrace(pw); 281 282 pw.flush(); // Test will fail if this line removed. 283 s = bao.toString(); 284 assertTrue("printStackTrace failed." + s.length(), s != null 285 && s.length() > 400); 286 287 } catch (Exception e) { 288 fail("Exception during test : " + e.getMessage()); 289 } 290 } 291 292 /** 293 * Sets up the fixture, for example, open a network connection. This method 294 * is called before a test is executed. 295 */ 296 protected void setUp() { 297 } 298 299 /** 300 * Tears down the fixture, for example, close a network connection. This 301 * method is called after a test is executed. 302 */ 303 protected void tearDown() { 304 } 305 } 306
