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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.bcel.classfile;
19  
20  import org.apache.bcel.AbstractTestCase;
21  import org.apache.bcel.generic.ConstantPoolGen;
22  import org.apache.bcel.generic.InstructionHandle;
23  import org.apache.bcel.generic.InstructionList;
24  import org.apache.bcel.generic.MethodGen;
25  import org.junit.Assert;
26  import org.junit.Test;
27  
28  public class ConstantPoolTestCase extends AbstractTestCase {
29  
30      @Test
31      public void testConstantToString() throws ClassNotFoundException {
32          final JavaClass clazz = getTestClass(PACKAGE_BASE_NAME + ".data.SimpleClassWithDefaultConstructor");
33          final ConstantPoolGen cp = new ConstantPoolGen(clazz.getConstantPool());
34  
35          final Method[] methods = clazz.getMethods();
36  
37          for (final Method method : methods) {
38              if (method.getName().equals("<init>")) {
39                  for (final InstructionHandle instructionHandle : getInstructionHandles(clazz, cp, method)) {
40                      final String string = instructionHandle.getInstruction().toString(cp.getConstantPool());
41                      Assert.assertNotNull(string);
42                      // TODO Need real assertions.
43                      // System.out.println(string);
44                  }
45              }
46          }
47      }
48  
49      private InstructionHandle[] getInstructionHandles(final JavaClass clazz, final ConstantPoolGen cp, final Method method) {
50          final MethodGen methodGen = new MethodGen(method, clazz.getClassName(), cp);
51          final InstructionList instructionList = methodGen.getInstructionList();
52          return instructionList.getInstructionHandles();
53      }
54  }