// Copyright (C) 2011 Milo Yip
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

#ifndef PERFTEST_H_
#define PERFTEST_H_

#define TEST_RAPIDJSON  1
#define TEST_JSONCPP    0
#define TEST_YAJL       0
#define TEST_ULTRAJSON  0
#define TEST_PLATFORM   0
#define TEST_MISC       0

#define TEST_VERSION_CODE(x, y, z) \
  (((x)*100000) + ((y)*100) + (z))

// Only gcc >4.3 supports SSE4.2
#if TEST_RAPIDJSON && !(defined(__GNUC__) && TEST_VERSION_CODE(__GNUC__, __GNUC_MINOR__, __GNUC_PATCHLEVEL__) < TEST_VERSION_CODE(4, 3, 0))
//#define RAPIDJSON_SSE2
#define RAPIDJSON_SSE42
#endif

#if TEST_YAJL
#include "yajl/yajl_common.h"
#undef YAJL_MAX_DEPTH
#define YAJL_MAX_DEPTH 1024
#endif

////////////////////////////////////////////////////////////////////////////////
// Google Test

#ifdef __cplusplus

// gtest indirectly included inttypes.h, without __STDC_CONSTANT_MACROS.
#ifndef __STDC_CONSTANT_MACROS
#  define __STDC_CONSTANT_MACROS 1 // required by C++ standard
#endif

#if defined(__clang__) || defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 2))
#if defined(__clang__) || (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6))
#pragma GCC diagnostic push
#endif
#pragma GCC diagnostic ignored "-Weffc++"
#endif

#include "gtest/gtest.h"

#if defined(__clang__) || defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6))
#pragma GCC diagnostic pop
#endif

#ifdef _MSC_VER
#define _CRTDBG_MAP_ALLOC
#include <crtdbg.h>
#pragma warning(disable : 4996) // 'function': was declared deprecated
#endif

//! Base class for all performance tests
class PerfTest : public ::testing::Test {
public:
	PerfTest() : filename_(), json_(), length_(), whitespace_(), whitespace_length_() {}

	virtual void SetUp() {
		FILE *fp = fopen(filename_ = "data/sample.json", "rb");
		if (!fp)
			fp = fopen(filename_ = "../../bin/data/sample.json", "rb");
		ASSERT_TRUE(fp != 0);

		fseek(fp, 0, SEEK_END);
		length_ = (size_t) ftell(fp);
		fseek(fp, 0, SEEK_SET);
		json_ = (char *) malloc(length_ + 1);
		ASSERT_EQ(length_, fread(json_, 1, length_, fp));
		json_[length_] = '\0';
		fclose(fp);

		// whitespace test
		whitespace_length_ = 1024 * 1024;
		whitespace_ = (char *) malloc(whitespace_length_ + 4);
		char *p = whitespace_;
		for (size_t i = 0; i < whitespace_length_; i += 4) {
			*p++ = ' ';
			*p++ = '\n';
			*p++ = '\r';
			*p++ = '\t';
		}
		*p++ = '[';
		*p++ = '0';
		*p++ = ']';
		*p++ = '\0';
	}

	virtual void TearDown() {
		free(json_);
		free(whitespace_);
		json_ = 0;
		whitespace_ = 0;
	}

private:
	PerfTest(const PerfTest &);

	PerfTest &operator=(const PerfTest &);

protected:
	const char *filename_;
	char *json_;
	size_t length_;
	char *whitespace_;
	size_t whitespace_length_;

	static const size_t kTrialCount = 1000;
};

#endif // __cplusplus

#endif // PERFTEST_H_
