text: //---------------------------------------------------------------------------
  //	Greenplum Database
  //	Copyright (C) 2018 Pivotal Inc.
  //
  //	@filename:
  //		CHistogramTest.h
  //
  //	@doc:
  //		Testing operations on points used to define histogram buckets
  //---------------------------------------------------------------------------
  #ifndef GPNAUCRATES_CHistogramTest_H
  #define GPNAUCRATES_CHistogramTest_H
  
  #include "gpos/base.h"
  #include "naucrates/statistics/CHistogram.h"
  
  namespace gpnaucrates
  {
  
  	//---------------------------------------------------------------------------
  	//	@class:
  	//		CHistogramTest
  	//
  	//	@doc:
  	//		Static unit tests for point
  	//
  	//---------------------------------------------------------------------------
  	class CHistogramTest
  	{
  		private:
  			// generate int histogram having tuples not covered by buckets,
  			// including null fraction and nDistinctRemain
  			static
  			CHistogram* PhistExampleInt4Remain(IMemoryPool *mp);
  
  		public:
  
  			// unittests
  			static
  			GPOS_RESULT EresUnittest();
  
  			// histogram basic tests
  			static
  			GPOS_RESULT EresUnittest_CHistogramValid();
  
  			static
  			GPOS_RESULT EresUnittest_CHistogramInt4();
  
  			static
  			GPOS_RESULT EresUnittest_CHistogramBool();
  
  			// skew basic tests
  			static
  			GPOS_RESULT EresUnittest_Skew();
  
  	}; // class CHistogramTest
  }
  
  #endif // !GPNAUCRATES_CHistogramTest_H
  
  
  // EOF
  