gemfire-core/src/test/java/com/gemstone/gemfire/cache/query/internal/SelectResultsComparatorJUnitTest.java

/*=========================================================================
 * Copyright (c) 2010-2014 Pivotal Software, Inc. All Rights Reserved.
 * This product is protected by U.S. and international copyright
 * and intellectual property laws. Pivotal products are covered by
 * one or more patents listed at http://www.pivotal.io/patents.
 *=========================================================================
 */
/*
 * Created on Nov 14, 2005
 */
package com.gemstone.gemfire.cache.query.internal;

import java.util.Iterator;
import java.util.Random;
import java.util.Collections;
import java.util.SortedSet;
import java.util.TreeSet;

import org.junit.experimental.categories.Category;

import com.gemstone.gemfire.cache.query.SelectResults;
import com.gemstone.gemfire.cache.query.internal.parse.OQLLexerTokenTypes;
import com.gemstone.gemfire.test.junit.categories.UnitTest;

import junit.framework.TestCase;

/**
 * @author kdeshpan
 *
 */
@Category(UnitTest.class)
public class SelectResultsComparatorJUnitTest extends TestCase implements OQLLexerTokenTypes {
  
  public SelectResultsComparatorJUnitTest(String testName) {
    super(testName);
  }
  
  public void testComparatorForSortedSet() throws Exception {
//    CompiledValue[] operands = new CompiledValue[3];
//    
//    CompiledJunction cj = new CompiledJunction(operands, LITERAL_and);
    int sameSizeVar = 0;
    boolean sameSizeVarSetFlag = false;
    SortedSet testSet = 
      Collections.synchronizedSortedSet(new TreeSet(
         new SelectResultsComparator()));
    for (int i = 0; i < 10; i++) {
      Random rand = new Random(); 
      SelectResults resultsSet = new ResultsSet();
      int size  = rand.nextInt();
      if (size < 0) size = 0 - size;
      size = size % 20;
      if (!sameSizeVarSetFlag) {
        sameSizeVar = size;
        sameSizeVarSetFlag = true;
      }
      for (int j = 0; j < size; j++) {
        resultsSet.add(new Object());
      }
      testSet.add(resultsSet);
    }
    
    SelectResults resultsSet = new ResultsSet();
    for (int j = 0; j < sameSizeVar; j++) {
      resultsSet.add(new Object());
    }
    testSet.add(resultsSet);
    if (testSet.size() != 11) fail("Same size resultSets were overwritten");
    Iterator iter1 = testSet.iterator();
    Iterator iter2 = testSet.iterator();
    iter2.next();
    
    while (iter2.hasNext()) {
      SelectResults sr1 = (SelectResults)iter1.next();
      SelectResults sr2 = (SelectResults)iter2.next();
      if(sr1.size() > sr2.size()) 
        fail("This is not expected behaviour");
    }
  }
  
    
}