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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 org.apache.bcel;
import org.apache.bcel.classfile.JavaClass;
import org.apache.bcel.classfile.LocalVariableTable;
import org.apache.bcel.classfile.Method;
import org.apache.bcel.generic.ClassGen;
import org.apache.bcel.generic.ConstantPoolGen;
import org.apache.bcel.generic.InstructionHandle;
import org.apache.bcel.generic.InstructionList;
import org.apache.bcel.generic.InvokeInstruction;
import org.apache.bcel.generic.MethodGen;
import org.apache.bcel.generic.Type;
public class PLSETestCase extends AbstractTestCase
{
/**
* BCEL-208: A couple of methods in MethodGen.java need to test for
* an empty instruction list.
*/
public void testB208() throws ClassNotFoundException
{
final JavaClass clazz = getTestClass(PACKAGE_BASE_NAME+".data.PLSETestClass");
final ClassGen gen = new ClassGen(clazz);
final ConstantPoolGen pool = gen.getConstantPool();
final Method m = gen.getMethodAt(1);
final MethodGen mg = new MethodGen(m, gen.getClassName(), pool);
mg.setInstructionList(null);
mg.addLocalVariable("local2", Type.INT, null, null);
// currently, this will cause null pointer exception
mg.getLocalVariableTable(pool);
}
/**
* BCEL-79:
*/
public void testB79() throws ClassNotFoundException
{
final JavaClass clazz = getTestClass(PACKAGE_BASE_NAME+".data.PLSETestClass");
final ClassGen gen = new ClassGen(clazz);
final ConstantPoolGen pool = gen.getConstantPool();
final Method m = gen.getMethodAt(2);
final LocalVariableTable lvt = m.getLocalVariableTable();
//System.out.println(lvt);
//System.out.println(lvt.getTableLength());
final MethodGen mg = new MethodGen(m, gen.getClassName(), pool);
final LocalVariableTable new_lvt = mg.getLocalVariableTable(mg.getConstantPool());
//System.out.println(new_lvt);
assertEquals("number of locals", lvt.getTableLength(), new_lvt.getTableLength());
}
/**
* BCEL-262:
*/
public void testB262() throws ClassNotFoundException
{
final JavaClass clazz = getTestClass(PACKAGE_BASE_NAME+".data.PLSETestEnum");
final ClassGen gen = new ClassGen(clazz);
final ConstantPoolGen pool = gen.getConstantPool();
// get the values() method
final Method m = gen.getMethodAt(0);
final MethodGen mg = new MethodGen(m, gen.getClassName(), pool);
final InstructionList il = mg.getInstructionList();
// get the invokevirtual instruction
final InstructionHandle ih = il.findHandle(3);
final InvokeInstruction ii = (InvokeInstruction)(ih.getInstruction());
// without fix, the getClassName() will throw:
// java.lang.IllegalArgumentException: Cannot be used on an array type
final String cn = ii.getClassName(pool);
assertEquals("[Lorg.apache.bcel.data.PLSETestEnum;", cn);
}
}
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