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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) 2006-2014 Rogério Liesenfeld
 * This file is subject to the terms of the MIT license (see LICENSE.txt).
 */
package mockit.internal.mockups;

import java.lang.reflect.*;

import org.jetbrains.annotations.*;

import mockit.internal.*;
import mockit.internal.state.*;

public final class MockupBridge extends MockingBridge
{
   @NotNull public static final MockingBridge MB = new MockupBridge();

   private MockupBridge() { super(MockupBridge.class); }

   @Nullable
   public Object invoke(@Nullable Object mocked, Method method, @NotNull Object[] args) throws Throwable
   {
      boolean enteringMethod = (Boolean) args[0];
      String mockClassDesc = (String) args[1];

      if (notToBeMocked(mocked, mockClassDesc)) {
         return enteringMethod ? false : Void.class;
      }

      if (enteringMethod) {
         int mockStateIndex = (Integer) args[2];
         return TestRun.updateMockState(mockClassDesc, mockStateIndex);
      }

      return null;
   }
}