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comparison 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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3325:2e7c5c15ba25 3326:b21d4cc8e5d1
1 /**
2 * Orthanc - A Lightweight, RESTful DICOM Store
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
4 * Department, University Hospital of Liege, Belgium
5 * Copyright (C) 2017-2019 Osimis S.A., Belgium
6 *
7 * This program is free software: you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License as
9 * published by the Free Software Foundation, either version 3 of the
10 * License, or (at your option) any later version.
11 *
12 * In addition, as a special exception, the copyright holders of this
13 * program give permission to link the code of its release with the
14 * OpenSSL project's "OpenSSL" library (or with modified versions of it
15 * that use the same license as the "OpenSSL" library), and distribute
16 * the linked executables. You must obey the GNU General Public License
17 * in all respects for all of the code used other than "OpenSSL". If you
18 * modify file(s) with this exception, you may extend this exception to
19 * your version of the file(s), but you are not obligated to do so. If
20 * you do not wish to do so, delete this exception statement from your
21 * version. If you delete this exception statement from all source files
22 * in the program, then also delete it here.
23 *
24 * This program is distributed in the hope that it will be useful, but
25 * WITHOUT ANY WARRANTY; without even the implied warranty of
26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
27 * General Public License for more details.
28 *
29 * You should have received a copy of the GNU General Public License
30 * along with this program. If not, see <http://www.gnu.org/licenses/>.
31 **/
32
33
34 #include "PrecompiledHeadersUnitTests.h"
35 #include "gtest/gtest.h"
36 #include "../Core/Toolbox.h"
37
38 using namespace Orthanc;
39
40 TEST(Toolbox, Base64_allByteValues)
41 {
42 std::string toEncode;
43 std::string base64Result;
44 std::string decodedResult;
45
46 size_t size = 2*256;
47 toEncode.reserve(size);
48 for (size_t i = 0; i < size; i++)
49 toEncode.push_back(i % 256);
50
51 Toolbox::EncodeBase64(base64Result, toEncode);
52 Toolbox::DecodeBase64(decodedResult, base64Result);
53
54 ASSERT_EQ(toEncode, decodedResult);
55 }
56
57 TEST(Toolbox, Base64_multipleSizes)
58 {
59 std::string toEncode;
60 std::string base64Result;
61 std::string decodedResult;
62
63 for (size_t size = 0; size <= 5; size++)
64 {
65 printf("base64, testing size %zu\n", size);
66 toEncode.clear();
67 toEncode.reserve(size);
68 for (size_t i = 0; i < size; i++)
69 toEncode.push_back(i % 256);
70
71 Toolbox::EncodeBase64(base64Result, toEncode);
72 Toolbox::DecodeBase64(decodedResult, base64Result);
73
74 ASSERT_EQ(toEncode, decodedResult);
75 }
76 }
77
78 static std::string EncodeBase64Bis(const std::string& s)
79 {
80 std::string result;
81 Toolbox::EncodeBase64(result, s);
82 return result;
83 }
84
85
86 TEST(Toolbox, Base64)
87 {
88 ASSERT_EQ("", EncodeBase64Bis(""));
89 ASSERT_EQ("YQ==", EncodeBase64Bis("a"));
90
91 const std::string hello = "SGVsbG8gd29ybGQ=";
92 ASSERT_EQ(hello, EncodeBase64Bis("Hello world"));
93
94 std::string decoded;
95 Toolbox::DecodeBase64(decoded, hello);
96 ASSERT_EQ("Hello world", decoded);
97
98 // Invalid character
99 ASSERT_THROW(Toolbox::DecodeBase64(decoded, "?"), OrthancException);
100
101 // All the allowed characters
102 Toolbox::DecodeBase64(decoded, "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=");
103 }
104
105
106 #if 0 // enable only when compiling in Release with a C++ 11 compiler
107 #include <chrono> // I had troubles to link with boost::chrono ...
108
109 TEST(Toolbox, Base64_largeString)
110 {
111 std::string toEncode;
112 std::string base64Result;
113 std::string decodedResult;
114
115 size_t size = 10 * 1024 * 1024;
116 toEncode.reserve(size);
117 for (size_t i = 0; i < size; i++)
118 toEncode.push_back(i % 256);
119
120 std::chrono::high_resolution_clock::time_point start;
121 std::chrono::high_resolution_clock::time_point afterEncoding;
122 std::chrono::high_resolution_clock::time_point afterDecoding;
123
124 start = std::chrono::high_resolution_clock::now();
125 Orthanc::Toolbox::EncodeBase64(base64Result, toEncode);
126 afterEncoding = std::chrono::high_resolution_clock::now();
127 Orthanc::Toolbox::DecodeBase64(decodedResult, base64Result);
128 afterDecoding = std::chrono::high_resolution_clock::now();
129
130 ASSERT_EQ(toEncode, decodedResult);
131
132 printf("encoding took %zu ms\n", (std::chrono::duration_cast<std::chrono::milliseconds>(afterEncoding - start)));
133 printf("decoding took %zu ms\n", (std::chrono::duration_cast<std::chrono::milliseconds>(afterDecoding - afterEncoding)));
134 }
135 #endif