/*
    * Copyright (c) 2006 JMockit developers
    * This file is subject to the terms of the MIT license (see LICENSE.txt).
    */
   package mockit.internal.expectations;
   
   import edu.umd.cs.findbugs.annotations.NonNull;
   
   import mockit.asm.types.JavaType;
  
  public final class MockingFilters {
      private MockingFilters() {
      }
  
      public static void validateAsMockable(@NonNull Class<?> type) {
          String typeDesc = JavaType.getInternalName(type);
          validateAsMockable(typeDesc);
      }
  
      public static void validateAsMockable(@NonNull String typeDesc) {
          boolean unmockable = ("java/lang/String java/lang/StringBuffer java/lang/StringBuilder java/lang/AbstractStringBuilder "
                  + "java/lang/Throwable java/lang/Object java/lang/Enum java/lang/System java/lang/ThreadLocal "
                  + "java/lang/ClassLoader java/lang/Math java/lang/StrictMath java/time/Duration").contains(typeDesc)
                  || "java/nio/file/Paths".equals(typeDesc) || typeDesc.startsWith("java/util/jar/");
  
          if (unmockable) {
              throw new IllegalArgumentException(typeDesc.replace('/', '.') + " is not mockable");
          }
      }
  
      public static boolean isSubclassOfUnmockable(@NonNull Class<?> aClass) {
          return Throwable.class.isAssignableFrom(aClass) || ClassLoader.class.isAssignableFrom(aClass)
                  || ThreadLocal.class.isAssignableFrom(aClass) || Number.class.isAssignableFrom(aClass);
      }
  }