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annotate UnitTestsSources/ToolboxTests.cpp @ 3326:b21d4cc8e5d1

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speed up base64 decoding + added tests
author Alain Mazy <alain@mazy.be>
date Thu, 21 Mar 2019 11:41:03 +0100
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children a600e5e8bd1c
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3326
b21d4cc8e5d1 speed up base64 decoding + added tests
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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, Belgium
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5 * Copyright (C) 2017-2019 Osimis S.A., Belgium
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6 *
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7 * This program is free software: you can redistribute it and/or
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8 * modify it under the terms of the GNU General Public License as
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9 * published by the Free Software Foundation, either version 3 of the
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10 * License, or (at your option) any later version.
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11 *
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12 * In addition, as a special exception, the copyright holders of this
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13 * program give permission to link the code of its release with the
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14 * OpenSSL project's "OpenSSL" library (or with modified versions of it
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15 * that use the same license as the "OpenSSL" library), and distribute
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16 * the linked executables. You must obey the GNU General Public License
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17 * in all respects for all of the code used other than "OpenSSL". If you
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18 * modify file(s) with this exception, you may extend this exception to
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19 * your version of the file(s), but you are not obligated to do so. If
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20 * you do not wish to do so, delete this exception statement from your
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21 * version. If you delete this exception statement from all source files
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22 * in the program, then also delete it here.
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23 *
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24 * This program is distributed in the hope that it will be useful, but
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25 * WITHOUT ANY WARRANTY; without even the implied warranty of
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26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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27 * General Public License for more details.
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28 *
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29 * You should have received a copy of the GNU General Public License
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30 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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31 **/
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32
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33
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34 #include "PrecompiledHeadersUnitTests.h"
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35 #include "gtest/gtest.h"
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36 #include "../Core/Toolbox.h"
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37
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38 using namespace Orthanc;
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39
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40 TEST(Toolbox, Base64_allByteValues)
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41 {
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42 std::string toEncode;
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43 std::string base64Result;
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44 std::string decodedResult;
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45
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46 size_t size = 2*256;
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47 toEncode.reserve(size);
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48 for (size_t i = 0; i < size; i++)
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49 toEncode.push_back(i % 256);
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50
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51 Toolbox::EncodeBase64(base64Result, toEncode);
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52 Toolbox::DecodeBase64(decodedResult, base64Result);
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53
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54 ASSERT_EQ(toEncode, decodedResult);
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55 }
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56
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57 TEST(Toolbox, Base64_multipleSizes)
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58 {
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59 std::string toEncode;
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60 std::string base64Result;
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61 std::string decodedResult;
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62
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63 for (size_t size = 0; size <= 5; size++)
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64 {
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65 printf("base64, testing size %zu\n", size);
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66 toEncode.clear();
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67 toEncode.reserve(size);
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68 for (size_t i = 0; i < size; i++)
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69 toEncode.push_back(i % 256);
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70
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71 Toolbox::EncodeBase64(base64Result, toEncode);
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72 Toolbox::DecodeBase64(decodedResult, base64Result);
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73
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74 ASSERT_EQ(toEncode, decodedResult);
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75 }
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76 }
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77
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78 static std::string EncodeBase64Bis(const std::string& s)
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79 {
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80 std::string result;
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81 Toolbox::EncodeBase64(result, s);
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82 return result;
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83 }
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84
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85
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86 TEST(Toolbox, Base64)
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87 {
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88 ASSERT_EQ("", EncodeBase64Bis(""));
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89 ASSERT_EQ("YQ==", EncodeBase64Bis("a"));
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90
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91 const std::string hello = "SGVsbG8gd29ybGQ=";
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92 ASSERT_EQ(hello, EncodeBase64Bis("Hello world"));
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93
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94 std::string decoded;
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95 Toolbox::DecodeBase64(decoded, hello);
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96 ASSERT_EQ("Hello world", decoded);
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97
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98 // Invalid character
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99 ASSERT_THROW(Toolbox::DecodeBase64(decoded, "?"), OrthancException);
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100
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101 // All the allowed characters
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102 Toolbox::DecodeBase64(decoded, "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=");
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103 }
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104
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105
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106 #if 0 // enable only when compiling in Release with a C++ 11 compiler
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107 #include <chrono> // I had troubles to link with boost::chrono ...
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108
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109 TEST(Toolbox, Base64_largeString)
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110 {
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111 std::string toEncode;
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112 std::string base64Result;
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113 std::string decodedResult;
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114
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115 size_t size = 10 * 1024 * 1024;
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116 toEncode.reserve(size);
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117 for (size_t i = 0; i < size; i++)
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118 toEncode.push_back(i % 256);
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119
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120 std::chrono::high_resolution_clock::time_point start;
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121 std::chrono::high_resolution_clock::time_point afterEncoding;
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122 std::chrono::high_resolution_clock::time_point afterDecoding;
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123
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124 start = std::chrono::high_resolution_clock::now();
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125 Orthanc::Toolbox::EncodeBase64(base64Result, toEncode);
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126 afterEncoding = std::chrono::high_resolution_clock::now();
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127 Orthanc::Toolbox::DecodeBase64(decodedResult, base64Result);
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128 afterDecoding = std::chrono::high_resolution_clock::now();
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129
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130 ASSERT_EQ(toEncode, decodedResult);
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131
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132 printf("encoding took %zu ms\n", (std::chrono::duration_cast<std::chrono::milliseconds>(afterEncoding - start)));
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133 printf("decoding took %zu ms\n", (std::chrono::duration_cast<std::chrono::milliseconds>(afterDecoding - afterEncoding)));
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134 }
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135 #endif