/*
    * 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.generic;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertNotNull;
  import static org.junit.jupiter.api.Assertions.assertNull;
  
  import org.apache.bcel.Repository;
  import org.apache.bcel.classfile.Code;
  import org.apache.bcel.classfile.JavaClass;
  import org.apache.bcel.classfile.Method;
  import org.junit.jupiter.api.Test;
  import org.junit.jupiter.params.ParameterizedTest;
  import org.junit.jupiter.params.provider.ValueSource;
  
  public class TypeTestCase {
      @Test
      public void testBCEL243() {
          // expectedValue = "Ljava/util/Map<TX;Ljava/util/List<TY;>;>;";
          // The line commented out above is the correct expected value; however,
          // the constructor for ObjectType is yet another place where BCEL does
          // not understand generics so we need to substitute the modified value below.
          final String expectedValue = "Ljava/util/Map<X, java/util/List<Y>>;";
          final String actualValue = Type.getType("Ljava/util/Map<TX;Ljava/util/List<TY;>;>;").getSignature();
          assertEquals(expectedValue, actualValue, "Type.getType");
      }
  
      @Test
      public void testInternalTypeNametoSignature() {
          assertNull(Type.internalTypeNameToSignature(null));
          assertEquals("", Type.internalTypeNameToSignature(""));
          assertEquals("TT;", Type.internalTypeNameToSignature("TT;"));
          assertEquals("Ljava/lang/String;", Type.internalTypeNameToSignature("Ljava/lang/String;"));
          assertEquals("[Ljava/lang/String;", Type.internalTypeNameToSignature("[Ljava/lang/String;"));
          assertEquals("Ljava/lang/String;", Type.internalTypeNameToSignature("java/lang/String"));
          assertEquals("I", Type.internalTypeNameToSignature("I"));
          assertEquals("LT;", Type.internalTypeNameToSignature("T"));
      }
  
      @ParameterizedTest
      @ValueSource(strings = {
      // @formatter:off
          "java/io/Externalizable",
          "java/io/ObjectOutputStream",
          "java/io/Serializable",
          "java/lang/Cloneable",
          "java/lang/RuntimeException",
          "java/lang/String",
          "java/lang/System",
          "java/lang/Throwable",
          "java/net/URI",
          "java/sql/Statement",
          "java/util/ArrayList",
          "java/util/Calendar",
          "java/util/EnumMap",
          "java/util/HashSet",
          "java/util/Iterator",
          "java/util/LinkedList",
          "java/util/List",
          "java/util/Map",
          "java/util/concurrent/ConcurrentMap",
          "java/util/concurrent/ExecutorService",
          "org/apache/bcel/classfile/JavaClass",
          "org/apache/bcel/classfile/Method",
          "org/apache/bcel/classfile/Synthetic",
          "org/apache/bcel/generic/ConstantPoolGen",
          "org/apache/bcel/generic/MethodGen",
          "com/foo/Foo"})
      // @formatter:on
      public void testLDC(final String className) throws Exception {
          final JavaClass jc = Repository.lookupClass(className);
          final ConstantPoolGen cpg = new ConstantPoolGen(jc.getConstantPool());
          for (final Method method : jc.getMethods()) {
              final Code code = method.getCode();
              if (code != null) {
                  final InstructionList instructionList = new InstructionList(code.getCode());
                  for (final InstructionHandle instructionHandle : instructionList) {
                      instructionHandle.accept(new EmptyVisitor() {
                          @Override
                          public void visitLDC(final LDC obj) {
                              assertNotNull(obj.getValue(cpg));
                          }
                      });
                  }
             }
         }
     }
 }