gplib/tests/quotient_filter.cpp

#include "test_scaffold.h"
#include <random>
#include <string>

#include "gp/quotient_filter.hpp"

typedef std::linear_congruential_engine<uint_fast64_t, 128273, 13, 2147483647> cheap_rand;
typedef std::linear_congruential_engine<uint_fast64_t, 69857, 87541, 2147483647> cheap_rand_bis;

struct qfilter_test : public test_scaffold {
	uint32_t seed;

	qfilter_test() {
		seed = std::random_device{}();
		name = __FILE__ ":1_seed";
		name += std::to_string(seed);
	}

	virtual int run() {
		
		cheap_rand setter(seed);
		cheap_rand getter(seed);

		gp::quotient_filter test_filter;

		for(int a = 0 ; a < 100; a++)
		{
			test_filter.set_hash(setter());
		}

		bool result = true;
		for(int a = 0 ; a < 100; a++)
		{
			result *= test_filter.test_hash(getter());
		}

		return !result;
	}
};

append_test dummy_rshyr43(new qfilter_test{});

struct qfilter2_test : public test_scaffold {
	uint32_t seedA;
	uint32_t seedB;

	qfilter2_test() {
		seedA = std::random_device{}();
		seedB = std::random_device{}();
		name = __FILE__ ":2_seedA";
		name += std::to_string(seedA);
		name += "&seedB";
		name += std::to_string(seedB);
	}

	virtual int run() {
		
		cheap_rand setter(seedA);
		cheap_rand deleter(seedA);
		cheap_rand_bis getter(seedB);

		gp::quotient_filter test_filter;

		for(int a = 0 ; a < 100000; a++)
		{
			test_filter.set_hash(setter());
		}

		int interference = 0;
		for(int a = 0 ; a < 100000; a++)
		{
			interference += test_filter.test_hash(getter());
		}

		for(int a = 0 ; a < 100000; a++)
		{
			test_filter.remove_hash(deleter());
		}

		return interference > 25;
	}
};

append_test dummy_kegdflu3(new qfilter2_test{});

struct qfilter3_test : public test_scaffold {
	uint32_t seedA;
	uint32_t seedB;

	qfilter3_test() {
		seedA = std::random_device{}();
		seedB = std::random_device{}();
		name = __FILE__ ":3_seedA";
		name += std::to_string(seedA);
		name += "&seedB";
		name += std::to_string(seedB);
	}

	virtual int run() {
		
		cheap_rand setter(seedA);
		cheap_rand deleter(seedA);
		cheap_rand_bis getter(seedB);

		gp::quotient_filter<uint32_t, 20,12, gp::stepcache_skipstone> test_filter;

		for(int a = 0 ; a < 100000; a++)
		{
			test_filter.set_hash(setter());
		}

		int interference = 0;
		for(int a = 0 ; a < 100000; a++)
		{
			interference += test_filter.test_hash(getter());
		}

		for(int a = 0 ; a < 100000; a++)
		{
			test_filter.remove_hash(deleter());
		}

		return interference > 25;
	}
};

append_test dummy_kjdflu3(new qfilter3_test{});