1 | // $Id: Suite.cc 1658 2008-12-17 15:02:00Z peter $ |
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2 | |
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3 | /* |
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4 | Copyright (C) 2008 Jari Häkkinen, Peter Johansson |
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5 | |
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6 | This file is part of the yat library, http://dev.thep.lu.se/yat |
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7 | |
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8 | The yat library is free software; you can redistribute it and/or |
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9 | modify it under the terms of the GNU General Public License as |
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10 | published by the Free Software Foundation; either version 3 of the |
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11 | License, or (at your option) any later version. |
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12 | |
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13 | The yat library is distributed in the hope that it will be useful, |
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14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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16 | General Public License for more details. |
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17 | |
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18 | You should have received a copy of the GNU General Public License |
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19 | along with yat. If not, see <http://www.gnu.org/licenses/>. |
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20 | */ |
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21 | |
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22 | #include "Suite.h" |
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23 | #include "environment.h" |
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24 | |
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25 | #include <algorithm> |
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26 | #include <cmath> |
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27 | #include <fstream> |
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28 | #include <iostream> |
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29 | #include <sstream> |
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30 | #include <string> |
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31 | |
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32 | namespace theplu { |
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33 | namespace yat { |
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34 | namespace test { |
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35 | |
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36 | Suite::Suite(int argc, char* argv[]) |
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37 | : dev_null_(NULL), known_issues_(0), ok_(true) |
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38 | { |
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39 | char* buffer=std::getenv("YAT_TEST_VERBOSE"); |
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40 | |
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41 | if ( (argc>1 && argv[1]==std::string("-v")) || |
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42 | (buffer && buffer == std::string("1")) ) |
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43 | verbose_ = true; |
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44 | else { |
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45 | verbose_ = false; |
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46 | dev_null_ = new std::ofstream("/dev/null"); |
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47 | if (argc>1){ |
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48 | std::stringstream ss(argv[0]); |
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49 | std::string prog; |
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50 | while(getline(ss, prog, '/')); |
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51 | if (prog.substr(0,3)=="lt-") |
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52 | prog = prog.substr(3); |
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53 | std::cout << prog << " -v : for printing extra information\n"; |
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54 | } |
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55 | } |
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56 | } |
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57 | |
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58 | |
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59 | Suite::~Suite(void) |
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60 | { |
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61 | if (dev_null_) |
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62 | delete dev_null_; |
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63 | } |
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64 | |
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65 | |
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66 | bool Suite::add(bool ok) |
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67 | { |
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68 | ok_ = ok_ && ok; |
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69 | return ok; |
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70 | } |
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71 | |
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72 | |
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73 | std::string filename(const std::string& path) |
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74 | { |
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75 | return abs_srcdir()+"/"+path; |
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76 | } |
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77 | |
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78 | |
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79 | std::ostream& Suite::err(void) const |
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80 | { |
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81 | if (verbose_) |
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82 | return std::cerr; |
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83 | return *dev_null_; |
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84 | } |
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85 | |
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86 | |
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87 | bool Suite::equal(double a, double b, unsigned long int n) |
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88 | { |
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89 | double last_error_bound = n*std::numeric_limits<double>().epsilon()* |
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90 | std::min(std::abs(a), std::abs(b)); |
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91 | return equal_fix(a, b, last_error_bound); |
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92 | } |
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93 | |
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94 | |
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95 | bool Suite::equal_fix(double a, double b, double margin) |
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96 | { |
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97 | // using the negated comparison to catch NaN problems |
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98 | if (!(std::abs(a-b) <= last_error_bound)){ |
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99 | err() << "Error: Comparing " << a << " and " << b |
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100 | << "\n Difference: " << a - b |
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101 | << "\n expected difference to be at most " << margin |
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102 | << std::endl; |
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103 | return false; |
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104 | } |
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105 | return true; |
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106 | } |
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107 | |
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108 | |
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109 | bool Suite::equal_sqrt(double a, double b, unsigned long int n) |
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110 | { |
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111 | double last_error_bound = n* |
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112 | std::sqrt(std::numeric_limits<double>().epsilon())* |
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113 | std::min(std::abs(a), std::abs(b)); |
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114 | if (!(std::abs(a-b) <= last_error_bound)){ |
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115 | err() << "Error: Comparing " << a << " and " << b |
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116 | << "\n Difference: " << a - b |
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117 | << "\n expected difference to be at most " << last_error_bound |
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118 | << std::endl; |
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119 | return false; |
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120 | } |
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121 | return true; |
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122 | } |
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123 | |
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124 | |
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125 | bool Suite::ok(void) const |
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126 | { |
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127 | return ok_; |
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128 | } |
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129 | |
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130 | |
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131 | std::ostream& Suite::out(void) const |
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132 | { |
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133 | if (verbose_) |
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134 | return std::cout; |
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135 | return *dev_null_; |
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136 | } |
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137 | |
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138 | |
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139 | int Suite::return_value(void) const |
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140 | { |
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141 | if (known_issues_>1) |
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142 | out() << known_issues_ << " known issues were detected.\n"; |
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143 | else if (known_issues_==1) |
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144 | out() << known_issues_ << " known issue was detected.\n"; |
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145 | if (ok()){ |
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146 | out() << "Test is ok.\n"; |
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147 | return 0; |
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148 | } |
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149 | out() << "Test failed.\n"; |
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150 | return -1; |
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151 | } |
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152 | |
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153 | |
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154 | bool Suite::xadd(bool ok) |
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155 | { |
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156 | if (!ok) |
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157 | ++known_issues_; |
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158 | else { |
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159 | err() << " test for a known issue returned true\n"; |
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160 | add(false); |
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161 | } |
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162 | return ok; |
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163 | } |
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164 | |
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165 | |
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166 | }}} |
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