mirror of https://gitee.com/bigwinds/arangodb
417 lines
12 KiB
C++
417 lines
12 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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/// @brief test suite for fpconv.cpp
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///
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/// @file
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///
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/// DISCLAIMER
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///
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/// Copyright 2012 triagens GmbH, Cologne, Germany
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///
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/// Licensed under the Apache License, Version 2.0 (the "License");
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/// you may not use this file except in compliance with the License.
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/// You may obtain a copy of the License at
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///
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/// http://www.apache.org/licenses/LICENSE-2.0
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///
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/// Unless required by applicable law or agreed to in writing, software
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/// distributed under the License is distributed on an "AS IS" BASIS,
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/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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/// See the License for the specific language governing permissions and
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/// limitations under the License.
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///
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/// Copyright holder is triAGENS GmbH, Cologne, Germany
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///
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/// @author Jan Steemann
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/// @author Copyright 2015, triAGENS GmbH, Cologne, Germany
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////////////////////////////////////////////////////////////////////////////////
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#include "Basics/Common.h"
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#include "catch.hpp"
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#include "Basics/fpconv.h"
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#include "Basics/json.h"
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#include "Basics/StringBuffer.h"
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using namespace arangodb::basics;
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// -----------------------------------------------------------------------------
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// --SECTION-- test suite
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// -----------------------------------------------------------------------------
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////////////////////////////////////////////////////////////////////////////////
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/// @brief setup
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////////////////////////////////////////////////////////////////////////////////
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TEST_CASE("CFpconvTest", "[convtest]") {
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////////////////////////////////////////////////////////////////////////////////
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/// @brief test nan
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////////////////////////////////////////////////////////////////////////////////
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SECTION("tst_nan") {
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char out[24];
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double value;
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int length;
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value = NAN;
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CHECK(true == std::isnan(value));
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length = fpconv_dtoa(value, out);
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#ifdef _WIN32
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CHECK(std::string("-NaN") == std::string(out, length));
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#else
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CHECK(std::string("NaN") == std::string(out, length));
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#endif
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StringBuffer buf(true);
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buf.appendDecimal(value);
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CHECK(std::string("NaN") == std::string(buf.c_str(), buf.length()));
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief test infinity
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////////////////////////////////////////////////////////////////////////////////
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SECTION("tst_inf") {
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char out[24];
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double value;
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int length;
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value = INFINITY;
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CHECK(false == std::isfinite(value));
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length = fpconv_dtoa(value, out);
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CHECK(std::string("inf") == std::string(out, length));
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StringBuffer buf(true);
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buf.appendDecimal(value);
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CHECK(std::string("inf") == std::string(buf.c_str(), buf.length()));
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief test huge val
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////////////////////////////////////////////////////////////////////////////////
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SECTION("tst_huge_val") {
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char out[24];
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double value;
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int length;
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value = HUGE_VAL;
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CHECK(false == std::isfinite(value));
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length = fpconv_dtoa(value, out);
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CHECK(std::string("inf") == std::string(out, length));
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StringBuffer buf(true);
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buf.appendDecimal(value);
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CHECK(std::string("inf") == std::string(buf.c_str(), buf.length()));
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief test huge val
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////////////////////////////////////////////////////////////////////////////////
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SECTION("tst_huge_val_neg") {
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char out[24];
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double value;
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int length;
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value = -HUGE_VAL;
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CHECK(false == std::isfinite(value));
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length = fpconv_dtoa(value, out);
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CHECK(std::string("-inf") == std::string(out, length));
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StringBuffer buf(true);
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buf.appendDecimal(value);
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CHECK(std::string("-inf") == std::string(buf.c_str(), buf.length()));
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief test zero
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////////////////////////////////////////////////////////////////////////////////
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SECTION("tst_zero") {
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char out[24];
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double value;
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int length;
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value = 0;
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length = fpconv_dtoa(value, out);
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CHECK(std::string("0") == std::string(out, length));
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StringBuffer buf(true);
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buf.appendDecimal(value);
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CHECK(std::string("0") == std::string(buf.c_str(), buf.length()));
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief test zero
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////////////////////////////////////////////////////////////////////////////////
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SECTION("tst_zero_neg") {
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char out[24];
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double value;
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int length;
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value = -0;
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length = fpconv_dtoa(value, out);
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CHECK(std::string("0") == std::string(out, length));
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StringBuffer buf(true);
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buf.appendDecimal(value);
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CHECK(std::string("0") == std::string(buf.c_str(), buf.length()));
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief test high
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////////////////////////////////////////////////////////////////////////////////
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SECTION("tst_value_high") {
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char out[24];
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double value;
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int length;
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value = 4.32e261;
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length = fpconv_dtoa(value, out);
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CHECK(std::string("4.32e+261") == std::string(out, length));
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StringBuffer buf(true);
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buf.appendDecimal(value);
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CHECK(std::string("4.32e+261") == std::string(buf.c_str(), buf.length()));
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief test low
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////////////////////////////////////////////////////////////////////////////////
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SECTION("tst_value_low") {
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char out[24];
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double value;
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int length;
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value = -4.32e261;
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length = fpconv_dtoa(value, out);
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CHECK(std::string("-4.32e+261") == std::string(out, length));
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StringBuffer buf(true);
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buf.appendDecimal(value);
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CHECK(std::string("-4.32e+261") == std::string(buf.c_str(), buf.length()));
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief test small
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////////////////////////////////////////////////////////////////////////////////
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SECTION("tst_value_small") {
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char out[24];
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double value;
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int length;
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value = 4.32e-261;
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length = fpconv_dtoa(value, out);
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CHECK(std::string("4.32e-261") == std::string(out, length));
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StringBuffer buf(true);
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buf.appendDecimal(value);
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CHECK(std::string("4.32e-261") == std::string(buf.c_str(), buf.length()));
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief test mchacki's value
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////////////////////////////////////////////////////////////////////////////////
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SECTION("tst_value_mchacki1") {
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char out[24];
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double value;
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int length;
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value = 1.374;
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length = fpconv_dtoa(value, out);
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CHECK(std::string("1.374") == std::string(out, length));
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StringBuffer buf(true);
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buf.appendDecimal(value);
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CHECK(std::string("1.374") == std::string(buf.c_str(), buf.length()));
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief test mchacki's value
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////////////////////////////////////////////////////////////////////////////////
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SECTION("tst_value_mchacki2") {
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char out[24];
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double value;
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int length;
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value = 56.94837631946843;
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length = fpconv_dtoa(value, out);
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CHECK(std::string("56.94837631946843") == std::string(out, length));
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StringBuffer buf(true);
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buf.appendDecimal(value);
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CHECK(std::string("56.94837631946843") == std::string(buf.c_str(), buf.length()));
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief test one third roundtrip
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////////////////////////////////////////////////////////////////////////////////
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SECTION("tst_value_mchacki2_roundtrip") {
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double value;
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value = 56.94837631946843;
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TRI_string_buffer_t buffer;
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TRI_InitStringBuffer(&buffer);
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auto json = TRI_CreateNumberJson(value);
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TRI_StringifyJson(&buffer, json);
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CHECK(std::string("56.94837631946843") == std::string(buffer._buffer, buffer._current - buffer._buffer));
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TRI_FreeJson(json);
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TRI_DestroyStringBuffer(&buffer);
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief test one third
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////////////////////////////////////////////////////////////////////////////////
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SECTION("tst_one_third") {
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char out[24];
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double value;
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int length;
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value = 1.0 / 3.0;
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length = fpconv_dtoa(value, out);
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CHECK(std::string("0.3333333333333333") == std::string(out, length));
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StringBuffer buf(true);
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buf.appendDecimal(value);
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CHECK(std::string("0.3333333333333333") == std::string(buf.c_str(), buf.length()));
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief test one third roundtrip
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////////////////////////////////////////////////////////////////////////////////
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SECTION("tst_one_third_roundtrip") {
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double value;
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value = 1.0 / 3.0;
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TRI_string_buffer_t buffer;
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TRI_InitStringBuffer(&buffer);
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auto json = TRI_CreateNumberJson(value);
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TRI_StringifyJson(&buffer, json);
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CHECK(std::string("0.3333333333333333") == std::string(buffer._buffer, buffer._current - buffer._buffer));
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TRI_FreeJson(json);
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TRI_DestroyStringBuffer(&buffer);
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief test 0.4
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////////////////////////////////////////////////////////////////////////////////
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SECTION("tst_04") {
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char out[24];
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double value;
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int length;
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value = 0.1 + 0.3;
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length = fpconv_dtoa(value, out);
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CHECK(std::string("0.4") == std::string(out, length));
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StringBuffer buf(true);
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buf.appendDecimal(value);
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CHECK(std::string("0.4") == std::string(buf.c_str(), buf.length()));
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief test 0.4
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////////////////////////////////////////////////////////////////////////////////
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SECTION("tst_04_roundtrip") {
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double value;
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value = 0.1 + 0.3;
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TRI_string_buffer_t buffer;
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TRI_InitStringBuffer(&buffer);
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auto json = TRI_CreateNumberJson(value);
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TRI_StringifyJson(&buffer, json);
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CHECK(std::string("0.4") == std::string(buffer._buffer, buffer._current - buffer._buffer));
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TRI_FreeJson(json);
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TRI_DestroyStringBuffer(&buffer);
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief test big roundtrip
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////////////////////////////////////////////////////////////////////////////////
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SECTION("tst_value_high_roundtrip") {
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double value;
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value = 4.32e261;
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TRI_string_buffer_t buffer;
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TRI_InitStringBuffer(&buffer);
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auto json = TRI_CreateNumberJson(value);
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TRI_StringifyJson(&buffer, json);
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CHECK(std::string("4.32e+261") == std::string(buffer._buffer, buffer._current - buffer._buffer));
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TRI_FreeJson(json);
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TRI_DestroyStringBuffer(&buffer);
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief test small roundtrip
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////////////////////////////////////////////////////////////////////////////////
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SECTION("tst_value_low_roundtrip") {
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double value;
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value = -4.32e261;
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TRI_string_buffer_t buffer;
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TRI_InitStringBuffer(&buffer);
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auto json = TRI_CreateNumberJson(value);
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TRI_StringifyJson(&buffer, json);
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CHECK(std::string("-4.32e+261") == std::string(buffer._buffer, buffer._current - buffer._buffer));
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TRI_FreeJson(json);
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TRI_DestroyStringBuffer(&buffer);
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}
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief generate tests
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////////////////////////////////////////////////////////////////////////////////
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// Local Variables:
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// mode: outline-minor
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// outline-regexp: "^\\(/// @brief\\|/// {@inheritDoc}\\|/// @addtogroup\\|// --SECTION--\\|/// @\\}\\)"
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// End:
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