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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) 2006-2013 Rogério Liesenfeld
 * This file is subject to the terms of the MIT license (see LICENSE.txt).
 */
package mockit.internal.expectations.invocation;

import java.util.*;

import mockit.external.asm4.*;
import mockit.internal.*;
import mockit.internal.expectations.argumentMatching.*;
import mockit.internal.state.*;
import mockit.internal.util.*;

public final class InvocationArguments
{
   final String classDesc;
   final String methodNameAndDesc;
   final String genericSignature;
   final String[] exceptions;
   private final ArgumentValuesAndMatchers valuesAndMatchers;
   private RealMethod realMethod;

   InvocationArguments(
      int access, String classDesc, String methodNameAndDesc, String genericSignature, String exceptions, Object[] args)
   {
      this.classDesc = classDesc;
      this.methodNameAndDesc = methodNameAndDesc;
      this.genericSignature = genericSignature;
      this.exceptions = exceptions == null ? null : exceptions.split(" ");
      valuesAndMatchers =
         (access & Opcodes.ACC_VARARGS) == 0 ?
            new ArgumentValuesAndMatchersWithoutVarargs(this, args) :
            new ArgumentValuesAndMatchersWithVarargs(this, args);
   }

   String getClassName() { return classDesc.replace('/', '.'); }

   boolean isForConstructor() { return methodNameAndDesc.charAt(0) == '<'; }

   public Object[] getValues() { return valuesAndMatchers.values; }
   void setValues(Object[] values) { valuesAndMatchers.values = values; }

   public void setValuesWithNoMatchers(Object[] argsToVerify)
   {
      valuesAndMatchers.setValuesWithNoMatchers(argsToVerify);
   }

   public List getMatchers() { return valuesAndMatchers.matchers; }
   public void setMatchers(List matchers) { valuesAndMatchers.matchers = matchers; }

   public Object[] prepareForVerification(Object[] argsToVerify, List matchers)
   {
      return valuesAndMatchers.prepareForVerification(argsToVerify, matchers);
   }

   public boolean isMatch(Object[] replayArgs, Map instanceMap)
   {
      TestRun.enterNoMockingZone();

      try {
         return valuesAndMatchers.isMatch(replayArgs, instanceMap);
      }
      finally {
         TestRun.exitNoMockingZone();
      }
   }

   public Error assertMatch(Object[] replayArgs, Map instanceMap, CharSequence errorMessagePrefix)
   {
      return valuesAndMatchers.assertMatch(replayArgs, instanceMap, errorMessagePrefix);
   }

   Error argumentMismatchMessage(int paramIndex, Object expected, Object actual, CharSequence errorMessagePrefix)
   {
      ArgumentMismatch message = new ArgumentMismatch();

      if (errorMessagePrefix != null) {
         message.append(errorMessagePrefix);
         message.append('\n');
      }

      message.append("Parameter ");

      String parameterName = ParameterNames.getName(classDesc, methodNameAndDesc, paramIndex);

      if (parameterName == null) {
         message.append(paramIndex);
      }
      else {
         message.appendFormatted(parameterName);
      }

      message.append(" of ").append(new MethodFormatter(classDesc, methodNameAndDesc).toString());
      message.append(" expected ").appendFormatted(expected);

      if (!message.isFinished()) {
         message.append(", got ").appendFormatted(actual);
      }

      return new UnexpectedInvocation(message.toString());
   }

   @Override
   public String toString()
   {
      MethodFormatter methodFormatter = new MethodFormatter(classDesc, methodNameAndDesc);
      return valuesAndMatchers.toString(methodFormatter);
   }

   public boolean hasEquivalentMatchers(InvocationArguments other)
   {
      return valuesAndMatchers.hasEquivalentMatchers(other.valuesAndMatchers);
   }

   RealMethod getRealMethod()
   {
      if (realMethod == null) {
         realMethod = new RealMethod(getClassName(), methodNameAndDesc);
      }

      return realMethod;
   }
}