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JMockit is a Java toolkit for automated developer testing. It contains mocking/faking APIs and a code coverage tool, 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 JMockit developers
 * This file is subject to the terms of the MIT license (see LICENSE.txt).
 */
package mockit.internal.expectations.invocation;

import java.util.*;
import javax.annotation.*;

public final class InvocationConstraints
{
   public int minInvocations;
   private int maxInvocations;
   @Nonnegative public int invocationCount;

   public InvocationConstraints(boolean nonStrictInvocation) {
      setLimits(nonStrictInvocation ? 0 : 1, -1);
   }

   public void setLimits(int minInvocations, int maxInvocations) {
      this.minInvocations = minInvocations;
      this.maxInvocations = maxInvocations;
   }

   void adjustMaxInvocations(@Nonnegative int expectedInvocationCount) {
      if (maxInvocations > 0 && maxInvocations < expectedInvocationCount) {
         maxInvocations = expectedInvocationCount;
      }
   }

   void setUnlimitedMaxInvocations() { maxInvocations = -1; }

   public void incrementInvocationCount() { invocationCount++; }

   public boolean isInvocationCountLessThanMinimumExpected() { return invocationCount < minInvocations; }

   public boolean isInvocationCountMoreThanMaximumExpected() {
      return maxInvocations >= 0 && invocationCount > maxInvocations;
   }

   @Nullable
   public Error verifyLowerLimit(@Nonnull ExpectedInvocation invocation, int lowerLimit) {
      if (invocationCount < lowerLimit) {
         int missingInvocations = lowerLimit - invocationCount;
         return invocation.errorForMissingInvocations(missingInvocations, Collections.emptyList());
      }

      return null;
   }

   @Nullable
   public Error verifyUpperLimit(@Nonnull ExpectedInvocation invocation, @Nonnull Object[] replayArgs, int upperLimit) {
      if (upperLimit >= 0) {
         int unexpectedInvocations = invocationCount - upperLimit;

         if (unexpectedInvocations > 0) {
            return invocation.errorForUnexpectedInvocations(replayArgs, unexpectedInvocations);
         }
      }

      return null;
   }

   @Nonnull
   public Error errorForMissingExpectations(
      @Nonnull ExpectedInvocation invocation, @Nonnull List nonMatchingInvocations
   ) {
      return invocation.errorForMissingInvocations(minInvocations - invocationCount, nonMatchingInvocations);
   }
}




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