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JMockit is a Java toolkit for developer (unit/integration) testing. It contains mocking APIs and other tools, supporting both JUnit and TestNG. The mocking APIs allow all kinds of Java code, without testability restrictions, to be tested in isolation from selected dependencies.

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/*  Copyright (c) 2000-2006 hamcrest.org
 */
package mockit.external.hamcrest.core;

import mockit.external.hamcrest.*;

/**
 * Tests whether the value is an instance of a class.
 * Classes of basic types will be converted to the relevant "Object" classes
 */
public final class IsInstanceOf extends BaseMatcher
{
   private final Class expectedClass;
   private final Class matchableClass;

   /**
    * Creates a new instance of IsInstanceOf.
    *
    * @param expectedClass The predicate evaluates to true for instances of this class
    *                      or one of its subclasses.
    */
   public IsInstanceOf(Class expectedClass)
   {
      this.expectedClass = expectedClass;
      matchableClass = matchableClass(expectedClass);
   }

   @SuppressWarnings({"ControlFlowStatementWithoutBraces"})
   private static Class matchableClass(Class expectedClass)
   {
      if (boolean.class.equals(expectedClass)) return Boolean.class;
      if (byte.class.equals(expectedClass)) return Byte.class;
      if (char.class.equals(expectedClass)) return Character.class;
      if (double.class.equals(expectedClass)) return Double.class;
      if (float.class.equals(expectedClass)) return Float.class;
      if (int.class.equals(expectedClass)) return Integer.class;
      if (long.class.equals(expectedClass)) return Long.class;
      if (short.class.equals(expectedClass)) return Short.class;
      return expectedClass;
   }

   public boolean matches(Object item)
   {
      return matches(item, Description.NONE);
   }

   @Override
   public void describeMismatch(Object item, Description mismatchDescription)
   {
      matches(item, mismatchDescription);
   }

   private boolean matches(Object item, Description mismatchDescription)
   {
      if (item == null) {
         mismatchDescription.appendText("null");
         return false;
      }

      if (!matchableClass.isInstance(item)) {
         mismatchDescription.appendValue(item).appendText(" is a " + item.getClass().getName());
         return false;
      }

      return true;
   }

   public void describeTo(Description description)
   {
      description.appendText("an instance of ").appendText(expectedClass.getName());
   }
}
    

    

    

            

    

            



    
    






    
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