opensim – Blame information for rev 1
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1 | eva | 1 | /* |
2 | * Copyright (c) Contributors, http://opensimulator.org/ |
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3 | * See CONTRIBUTORS.TXT for a full list of copyright holders. |
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4 | * |
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5 | * Redistribution and use in source and binary forms, with or without |
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6 | * modification, are permitted provided that the following conditions are met: |
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7 | * * Redistributions of source code must retain the above copyright |
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8 | * notice, this list of conditions and the following disclaimer. |
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9 | * * Redistributions in binary form must reproduce the above copyright |
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10 | * notice, this list of conditions and the following disclaimer in the |
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11 | * documentation and/or other materials provided with the distribution. |
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12 | * * Neither the name of the OpenSimulator Project nor the |
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13 | * names of its contributors may be used to endorse or promote products |
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14 | * derived from this software without specific prior written permission. |
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15 | * |
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16 | * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY |
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17 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
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18 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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19 | * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY |
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20 | * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
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21 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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22 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
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23 | * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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24 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
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25 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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26 | */ |
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27 | |||
28 | using System; |
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29 | using System.Collections; |
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30 | using System.Collections.Generic; |
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31 | using System.Drawing; |
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32 | using System.Linq; |
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33 | using System.Linq.Expressions; |
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34 | using System.Reflection; |
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35 | using NUnit.Framework; |
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36 | using NUnit.Framework.Constraints; |
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37 | using OpenMetaverse; |
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38 | using OpenSim.Framework; |
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39 | using OpenSim.Tests.Common; |
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40 | |||
41 | namespace OpenSim.Data.Tests |
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42 | { |
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43 | public static class Constraints |
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44 | { |
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45 | //This is here because C# has a gap in the language, you can't infer type from a constructor |
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46 | public static PropertyCompareConstraint<T> PropertyCompareConstraint<T>(T expected) |
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47 | { |
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48 | return new PropertyCompareConstraint<T>(expected); |
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49 | } |
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50 | } |
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51 | |||
52 | public class PropertyCompareConstraint<T> : NUnit.Framework.Constraints.Constraint |
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53 | { |
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54 | private readonly object _expected; |
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55 | //the reason everywhere uses propertyNames.Reverse().ToArray() is because the stack is backwards of the order we want to display the properties in. |
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56 | private string failingPropertyName = string.Empty; |
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57 | private object failingExpected; |
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58 | private object failingActual; |
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59 | |||
60 | public PropertyCompareConstraint(T expected) |
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61 | { |
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62 | _expected = expected; |
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63 | } |
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64 | |||
65 | public override bool Matches(object actual) |
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66 | { |
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67 | return ObjectCompare(_expected, actual, new Stack<string>()); |
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68 | } |
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69 | |||
70 | private bool ObjectCompare(object expected, object actual, Stack<string> propertyNames) |
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71 | { |
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72 | //If they are both null, they are equal |
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73 | if (actual == null && expected == null) |
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74 | return true; |
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75 | |||
76 | //If only one is null, then they aren't |
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77 | if (actual == null || expected == null) |
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78 | { |
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79 | failingPropertyName = string.Join(".", propertyNames.Reverse().ToArray()); |
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80 | failingActual = actual; |
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81 | failingExpected = expected; |
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82 | return false; |
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83 | } |
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84 | |||
85 | //prevent loops... |
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86 | if (propertyNames.Count > 50) |
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87 | { |
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88 | failingPropertyName = string.Join(".", propertyNames.Reverse().ToArray()); |
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89 | failingActual = actual; |
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90 | failingExpected = expected; |
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91 | return false; |
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92 | } |
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93 | |||
94 | if (actual.GetType() != expected.GetType()) |
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95 | { |
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96 | propertyNames.Push("GetType()"); |
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97 | failingPropertyName = string.Join(".", propertyNames.Reverse().ToArray()); |
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98 | propertyNames.Pop(); |
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99 | failingActual = actual.GetType(); |
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100 | failingExpected = expected.GetType(); |
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101 | return false; |
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102 | } |
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103 | |||
104 | if (actual.GetType() == typeof(Color)) |
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105 | { |
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106 | Color actualColor = (Color) actual; |
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107 | Color expectedColor = (Color) expected; |
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108 | if (actualColor.R != expectedColor.R) |
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109 | { |
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110 | propertyNames.Push("R"); |
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111 | failingPropertyName = string.Join(".", propertyNames.Reverse().ToArray()); |
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112 | propertyNames.Pop(); |
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113 | failingActual = actualColor.R; |
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114 | failingExpected = expectedColor.R; |
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115 | return false; |
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116 | } |
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117 | if (actualColor.G != expectedColor.G) |
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118 | { |
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119 | propertyNames.Push("G"); |
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120 | failingPropertyName = string.Join(".", propertyNames.Reverse().ToArray()); |
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121 | propertyNames.Pop(); |
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122 | failingActual = actualColor.G; |
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123 | failingExpected = expectedColor.G; |
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124 | return false; |
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125 | } |
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126 | if (actualColor.B != expectedColor.B) |
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127 | { |
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128 | propertyNames.Push("B"); |
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129 | failingPropertyName = string.Join(".", propertyNames.Reverse().ToArray()); |
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130 | propertyNames.Pop(); |
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131 | failingActual = actualColor.B; |
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132 | failingExpected = expectedColor.B; |
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133 | return false; |
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134 | } |
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135 | if (actualColor.A != expectedColor.A) |
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136 | { |
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137 | propertyNames.Push("A"); |
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138 | failingPropertyName = string.Join(".", propertyNames.Reverse().ToArray()); |
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139 | propertyNames.Pop(); |
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140 | failingActual = actualColor.A; |
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141 | failingExpected = expectedColor.A; |
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142 | return false; |
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143 | } |
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144 | return true; |
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145 | } |
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146 | |||
147 | IComparable comp = actual as IComparable; |
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148 | if (comp != null) |
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149 | { |
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150 | if (comp.CompareTo(expected) != 0) |
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151 | { |
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152 | failingPropertyName = string.Join(".", propertyNames.Reverse().ToArray()); |
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153 | failingActual = actual; |
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154 | failingExpected = expected; |
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155 | return false; |
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156 | } |
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157 | return true; |
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158 | } |
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159 | |||
160 | //Now try the much more annoying IComparable<T> |
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161 | Type icomparableInterface = actual.GetType().GetInterface("IComparable`1"); |
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162 | if (icomparableInterface != null) |
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163 | { |
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164 | int result = (int)icomparableInterface.GetMethod("CompareTo").Invoke(actual, new[] { expected }); |
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165 | if (result != 0) |
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166 | { |
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167 | failingPropertyName = string.Join(".", propertyNames.Reverse().ToArray()); |
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168 | failingActual = actual; |
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169 | failingExpected = expected; |
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170 | return false; |
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171 | } |
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172 | return true; |
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173 | } |
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174 | |||
175 | IEnumerable arr = actual as IEnumerable; |
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176 | if (arr != null) |
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177 | { |
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178 | List<object> actualList = arr.Cast<object>().ToList(); |
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179 | List<object> expectedList = ((IEnumerable)expected).Cast<object>().ToList(); |
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180 | if (actualList.Count != expectedList.Count) |
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181 | { |
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182 | propertyNames.Push("Count"); |
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183 | failingPropertyName = string.Join(".", propertyNames.Reverse().ToArray()); |
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184 | failingActual = actualList.Count; |
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185 | failingExpected = expectedList.Count; |
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186 | propertyNames.Pop(); |
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187 | return false; |
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188 | } |
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189 | //actualList and expectedList should be the same size. |
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190 | for (int i = 0; i < actualList.Count; i++) |
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191 | { |
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192 | propertyNames.Push("[" + i + "]"); |
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193 | if (!ObjectCompare(expectedList[i], actualList[i], propertyNames)) |
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194 | return false; |
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195 | propertyNames.Pop(); |
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196 | } |
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197 | //Everything seems okay... |
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198 | return true; |
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199 | } |
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200 | |||
201 | //Skip static properties. I had a nasty problem comparing colors because of all of the public static colors. |
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202 | PropertyInfo[] properties = expected.GetType().GetProperties(BindingFlags.Public | BindingFlags.Instance); |
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203 | foreach (var property in properties) |
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204 | { |
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205 | if (ignores.Contains(property.Name)) |
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206 | continue; |
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207 | |||
208 | object actualValue = property.GetValue(actual, null); |
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209 | object expectedValue = property.GetValue(expected, null); |
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210 | |||
211 | propertyNames.Push(property.Name); |
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212 | if (!ObjectCompare(expectedValue, actualValue, propertyNames)) |
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213 | return false; |
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214 | propertyNames.Pop(); |
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215 | } |
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216 | |||
217 | return true; |
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218 | } |
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219 | |||
220 | public override void WriteDescriptionTo(MessageWriter writer) |
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221 | { |
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222 | writer.WriteExpectedValue(failingExpected); |
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223 | } |
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224 | |||
225 | public override void WriteActualValueTo(MessageWriter writer) |
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226 | { |
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227 | writer.WriteActualValue(failingActual); |
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228 | writer.WriteLine(); |
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229 | writer.Write(" On Property: " + failingPropertyName); |
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230 | } |
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231 | |||
232 | //These notes assume the lambda: (x=>x.Parent.Value) |
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233 | //ignores should really contain like a fully dotted version of the property name, but I'm starting with small steps |
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234 | readonly List<string> ignores = new List<string>(); |
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235 | public PropertyCompareConstraint<T> IgnoreProperty(Expression<Func<T, object>> func) |
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236 | { |
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237 | Expression express = func.Body; |
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238 | PullApartExpression(express); |
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239 | |||
240 | return this; |
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241 | } |
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242 | |||
243 | private void PullApartExpression(Expression express) |
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244 | { |
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245 | //This deals with any casts... like implicit casts to object. Not all UnaryExpression are casts, but this is a first attempt. |
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246 | if (express is UnaryExpression) |
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247 | PullApartExpression(((UnaryExpression)express).Operand); |
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248 | if (express is MemberExpression) |
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249 | { |
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250 | //If the inside of the lambda is the access to x, we've hit the end of the chain. |
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251 | // We should track by the fully scoped parameter name, but this is the first rev of doing this. |
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252 | ignores.Add(((MemberExpression)express).Member.Name); |
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253 | } |
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254 | } |
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255 | } |
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256 | |||
257 | [TestFixture] |
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258 | public class PropertyCompareConstraintTest : OpenSimTestCase |
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259 | { |
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260 | public class HasInt |
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261 | { |
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262 | public int TheValue { get; set; } |
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263 | } |
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264 | |||
265 | [Test] |
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266 | public void IntShouldMatch() |
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267 | { |
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268 | HasInt actual = new HasInt { TheValue = 5 }; |
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269 | HasInt expected = new HasInt { TheValue = 5 }; |
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270 | var constraint = Constraints.PropertyCompareConstraint(expected); |
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271 | |||
272 | Assert.That(constraint.Matches(actual), Is.True); |
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273 | } |
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274 | |||
275 | [Test] |
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276 | public void IntShouldNotMatch() |
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277 | { |
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278 | HasInt actual = new HasInt { TheValue = 5 }; |
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279 | HasInt expected = new HasInt { TheValue = 4 }; |
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280 | var constraint = Constraints.PropertyCompareConstraint(expected); |
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281 | |||
282 | Assert.That(constraint.Matches(actual), Is.False); |
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283 | } |
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284 | |||
285 | |||
286 | [Test] |
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287 | public void IntShouldIgnore() |
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288 | { |
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289 | HasInt actual = new HasInt { TheValue = 5 }; |
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290 | HasInt expected = new HasInt { TheValue = 4 }; |
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291 | var constraint = Constraints.PropertyCompareConstraint(expected).IgnoreProperty(x => x.TheValue); |
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292 | |||
293 | Assert.That(constraint.Matches(actual), Is.True); |
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294 | } |
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295 | |||
296 | [Test] |
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297 | public void AssetShouldMatch() |
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298 | { |
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299 | UUID uuid1 = UUID.Random(); |
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300 | AssetBase actual = new AssetBase(uuid1, "asset one", (sbyte)AssetType.Texture, UUID.Zero.ToString()); |
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301 | AssetBase expected = new AssetBase(uuid1, "asset one", (sbyte)AssetType.Texture, UUID.Zero.ToString()); |
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302 | |||
303 | var constraint = Constraints.PropertyCompareConstraint(expected); |
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304 | |||
305 | Assert.That(constraint.Matches(actual), Is.True); |
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306 | } |
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307 | |||
308 | [Test] |
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309 | public void AssetShouldNotMatch() |
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310 | { |
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311 | UUID uuid1 = UUID.Random(); |
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312 | AssetBase actual = new AssetBase(uuid1, "asset one", (sbyte)AssetType.Texture, UUID.Zero.ToString()); |
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313 | AssetBase expected = new AssetBase(UUID.Random(), "asset one", (sbyte)AssetType.Texture, UUID.Zero.ToString()); |
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314 | |||
315 | var constraint = Constraints.PropertyCompareConstraint(expected); |
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316 | |||
317 | Assert.That(constraint.Matches(actual), Is.False); |
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318 | } |
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319 | |||
320 | [Test] |
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321 | public void AssetShouldNotMatch2() |
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322 | { |
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323 | UUID uuid1 = UUID.Random(); |
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324 | AssetBase actual = new AssetBase(uuid1, "asset one", (sbyte)AssetType.Texture, UUID.Zero.ToString()); |
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325 | AssetBase expected = new AssetBase(uuid1, "asset two", (sbyte)AssetType.Texture, UUID.Zero.ToString()); |
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326 | |||
327 | var constraint = Constraints.PropertyCompareConstraint(expected); |
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328 | |||
329 | Assert.That(constraint.Matches(actual), Is.False); |
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330 | } |
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331 | |||
332 | [Test] |
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333 | public void UUIDShouldMatch() |
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334 | { |
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335 | UUID uuid1 = UUID.Random(); |
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336 | UUID uuid2 = UUID.Parse(uuid1.ToString()); |
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337 | |||
338 | var constraint = Constraints.PropertyCompareConstraint(uuid1); |
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339 | |||
340 | Assert.That(constraint.Matches(uuid2), Is.True); |
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341 | } |
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342 | |||
343 | [Test] |
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344 | public void UUIDShouldNotMatch() |
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345 | { |
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346 | UUID uuid1 = UUID.Random(); |
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347 | UUID uuid2 = UUID.Random(); |
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348 | |||
349 | var constraint = Constraints.PropertyCompareConstraint(uuid1); |
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350 | |||
351 | Assert.That(constraint.Matches(uuid2), Is.False); |
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352 | } |
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353 | |||
354 | [Test] |
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355 | public void TestColors() |
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356 | { |
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357 | Color actual = Color.Red; |
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358 | Color expected = Color.FromArgb(actual.A, actual.R, actual.G, actual.B); |
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359 | |||
360 | var constraint = Constraints.PropertyCompareConstraint(expected); |
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361 | |||
362 | Assert.That(constraint.Matches(actual), Is.True); |
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363 | } |
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364 | |||
365 | [Test] |
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366 | public void ShouldCompareLists() |
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367 | { |
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368 | List<int> expected = new List<int> { 1, 2, 3 }; |
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369 | List<int> actual = new List<int> { 1, 2, 3 }; |
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370 | |||
371 | var constraint = Constraints.PropertyCompareConstraint(expected); |
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372 | Assert.That(constraint.Matches(actual), Is.True); |
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373 | } |
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374 | |||
375 | |||
376 | [Test] |
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377 | public void ShouldFailToCompareListsThatAreDifferent() |
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378 | { |
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379 | List<int> expected = new List<int> { 1, 2, 3 }; |
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380 | List<int> actual = new List<int> { 1, 2, 4 }; |
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381 | |||
382 | var constraint = Constraints.PropertyCompareConstraint(expected); |
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383 | Assert.That(constraint.Matches(actual), Is.False); |
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384 | } |
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385 | |||
386 | [Test] |
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387 | public void ShouldFailToCompareListsThatAreDifferentLengths() |
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388 | { |
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389 | List<int> expected = new List<int> { 1, 2, 3 }; |
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390 | List<int> actual = new List<int> { 1, 2 }; |
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391 | |||
392 | var constraint = Constraints.PropertyCompareConstraint(expected); |
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393 | Assert.That(constraint.Matches(actual), Is.False); |
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394 | } |
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395 | |||
396 | public class Recursive |
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397 | { |
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398 | public Recursive Other { get; set; } |
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399 | } |
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400 | |||
401 | [Test] |
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402 | public void ErrorsOutOnRecursive() |
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403 | { |
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404 | Recursive parent = new Recursive(); |
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405 | Recursive child = new Recursive(); |
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406 | parent.Other = child; |
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407 | child.Other = parent; |
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408 | |||
409 | var constraint = Constraints.PropertyCompareConstraint(child); |
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410 | Assert.That(constraint.Matches(child), Is.False); |
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411 | } |
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412 | } |
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413 | } |