prosody
33ee40dc3e25
spec/util_cache_spec.lua

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spec/util_cache_spec.lua @ 9206:33ee40dc3e25

Pubsub: Add tests for :get_last_item() and fix for non-persistent nodes
author Matthew Wild <mwild1@gmail.com>
date Sat, 18 Aug 2018 15:10:41 +0100
parent 8236:4878e4159e12
child 9323:3259653512e7
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8236
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1
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2 local cache = require "util.cache";
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3
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4 describe("util.cache", function()
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5 describe("#new()", function()
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6 it("should work", function()
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7
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8 local c = cache.new(5);
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9
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10 local function expect_kv(key, value, actual_key, actual_value)
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11 assert.are.equal(key, actual_key, "key incorrect");
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12 assert.are.equal(value, actual_value, "value incorrect");
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13 end
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14
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15 expect_kv(nil, nil, c:head());
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16 expect_kv(nil, nil, c:tail());
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17
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18 assert.are.equal(c:count(), 0);
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19
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20 c:set("one", 1)
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21 assert.are.equal(c:count(), 1);
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22 expect_kv("one", 1, c:head());
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23 expect_kv("one", 1, c:tail());
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24
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25 c:set("two", 2)
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26 expect_kv("two", 2, c:head());
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27 expect_kv("one", 1, c:tail());
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28
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29 c:set("three", 3)
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30 expect_kv("three", 3, c:head());
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31 expect_kv("one", 1, c:tail());
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32
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33 c:set("four", 4)
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34 c:set("five", 5);
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35 assert.are.equal(c:count(), 5);
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36 expect_kv("five", 5, c:head());
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37 expect_kv("one", 1, c:tail());
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38
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39 c:set("foo", nil);
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40 assert.are.equal(c:count(), 5);
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41 expect_kv("five", 5, c:head());
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42 expect_kv("one", 1, c:tail());
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43
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44 assert.are.equal(c:get("one"), 1);
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45 expect_kv("five", 5, c:head());
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46 expect_kv("one", 1, c:tail());
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47
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48 assert.are.equal(c:get("two"), 2);
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49 assert.are.equal(c:get("three"), 3);
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50 assert.are.equal(c:get("four"), 4);
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51 assert.are.equal(c:get("five"), 5);
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52
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53 assert.are.equal(c:get("foo"), nil);
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54 assert.are.equal(c:get("bar"), nil);
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55
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56 c:set("six", 6);
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57 assert.are.equal(c:count(), 5);
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58 expect_kv("six", 6, c:head());
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59 expect_kv("two", 2, c:tail());
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60
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61 assert.are.equal(c:get("one"), nil);
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62 assert.are.equal(c:get("two"), 2);
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63 assert.are.equal(c:get("three"), 3);
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64 assert.are.equal(c:get("four"), 4);
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65 assert.are.equal(c:get("five"), 5);
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66 assert.are.equal(c:get("six"), 6);
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67
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68 c:set("three", nil);
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69 assert.are.equal(c:count(), 4);
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70
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71 assert.are.equal(c:get("one"), nil);
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72 assert.are.equal(c:get("two"), 2);
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73 assert.are.equal(c:get("three"), nil);
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74 assert.are.equal(c:get("four"), 4);
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75 assert.are.equal(c:get("five"), 5);
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76 assert.are.equal(c:get("six"), 6);
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77
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78 c:set("seven", 7);
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79 assert.are.equal(c:count(), 5);
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80
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81 assert.are.equal(c:get("one"), nil);
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82 assert.are.equal(c:get("two"), 2);
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83 assert.are.equal(c:get("three"), nil);
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84 assert.are.equal(c:get("four"), 4);
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85 assert.are.equal(c:get("five"), 5);
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86 assert.are.equal(c:get("six"), 6);
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87 assert.are.equal(c:get("seven"), 7);
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88
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89 c:set("eight", 8);
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90 assert.are.equal(c:count(), 5);
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91
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92 assert.are.equal(c:get("one"), nil);
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93 assert.are.equal(c:get("two"), nil);
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94 assert.are.equal(c:get("three"), nil);
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95 assert.are.equal(c:get("four"), 4);
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96 assert.are.equal(c:get("five"), 5);
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97 assert.are.equal(c:get("six"), 6);
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98 assert.are.equal(c:get("seven"), 7);
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99 assert.are.equal(c:get("eight"), 8);
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100
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101 c:set("four", 4);
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102 assert.are.equal(c:count(), 5);
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103
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104 assert.are.equal(c:get("one"), nil);
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105 assert.are.equal(c:get("two"), nil);
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106 assert.are.equal(c:get("three"), nil);
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107 assert.are.equal(c:get("four"), 4);
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108 assert.are.equal(c:get("five"), 5);
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109 assert.are.equal(c:get("six"), 6);
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110 assert.are.equal(c:get("seven"), 7);
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111 assert.are.equal(c:get("eight"), 8);
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112
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113 c:set("nine", 9);
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114 assert.are.equal(c:count(), 5);
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115
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116 assert.are.equal(c:get("one"), nil);
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117 assert.are.equal(c:get("two"), nil);
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118 assert.are.equal(c:get("three"), nil);
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119 assert.are.equal(c:get("four"), 4);
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120 assert.are.equal(c:get("five"), nil);
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121 assert.are.equal(c:get("six"), 6);
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122 assert.are.equal(c:get("seven"), 7);
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123 assert.are.equal(c:get("eight"), 8);
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124 assert.are.equal(c:get("nine"), 9);
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125
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126 do
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127 local keys = { "nine", "four", "eight", "seven", "six" };
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128 local values = { 9, 4, 8, 7, 6 };
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129 local i = 0;
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130 for k, v in c:items() do
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131 i = i + 1;
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132 assert.are.equal(k, keys[i]);
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133 assert.are.equal(v, values[i]);
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134 end
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135 assert.are.equal(i, 5);
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136
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137 c:set("four", "2+2");
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138 assert.are.equal(c:count(), 5);
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139
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140 assert.are.equal(c:get("one"), nil);
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141 assert.are.equal(c:get("two"), nil);
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142 assert.are.equal(c:get("three"), nil);
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143 assert.are.equal(c:get("four"), "2+2");
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144 assert.are.equal(c:get("five"), nil);
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145 assert.are.equal(c:get("six"), 6);
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146 assert.are.equal(c:get("seven"), 7);
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147 assert.are.equal(c:get("eight"), 8);
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148 assert.are.equal(c:get("nine"), 9);
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149 end
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150
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151 do
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152 local keys = { "four", "nine", "eight", "seven", "six" };
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153 local values = { "2+2", 9, 8, 7, 6 };
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154 local i = 0;
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155 for k, v in c:items() do
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156 i = i + 1;
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157 assert.are.equal(k, keys[i]);
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158 assert.are.equal(v, values[i]);
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159 end
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160 assert.are.equal(i, 5);
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161
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162 c:set("foo", nil);
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163 assert.are.equal(c:count(), 5);
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164
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165 assert.are.equal(c:get("one"), nil);
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166 assert.are.equal(c:get("two"), nil);
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167 assert.are.equal(c:get("three"), nil);
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168 assert.are.equal(c:get("four"), "2+2");
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169 assert.are.equal(c:get("five"), nil);
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170 assert.are.equal(c:get("six"), 6);
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171 assert.are.equal(c:get("seven"), 7);
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172 assert.are.equal(c:get("eight"), 8);
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173 assert.are.equal(c:get("nine"), 9);
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174 end
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175
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176 do
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177 local keys = { "four", "nine", "eight", "seven", "six" };
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178 local values = { "2+2", 9, 8, 7, 6 };
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179 local i = 0;
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180 for k, v in c:items() do
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181 i = i + 1;
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182 assert.are.equal(k, keys[i]);
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183 assert.are.equal(v, values[i]);
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184 end
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185 assert.are.equal(i, 5);
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186
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187 c:set("four", nil);
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188
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189 assert.are.equal(c:get("one"), nil);
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190 assert.are.equal(c:get("two"), nil);
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191 assert.are.equal(c:get("three"), nil);
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192 assert.are.equal(c:get("four"), nil);
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193 assert.are.equal(c:get("five"), nil);
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194 assert.are.equal(c:get("six"), 6);
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195 assert.are.equal(c:get("seven"), 7);
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196 assert.are.equal(c:get("eight"), 8);
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197 assert.are.equal(c:get("nine"), 9);
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198 end
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199
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200 do
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201 local keys = { "nine", "eight", "seven", "six" };
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202 local values = { 9, 8, 7, 6 };
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203 local i = 0;
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204 for k, v in c:items() do
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205 i = i + 1;
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206 assert.are.equal(k, keys[i]);
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207 assert.are.equal(v, values[i]);
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208 end
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209 assert.are.equal(i, 4);
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210 end
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211
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212 do
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213 local evicted_key, evicted_value;
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214 local c2 = cache.new(3, function (_key, _value)
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215 evicted_key, evicted_value = _key, _value;
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216 end);
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217 local function set(k, v, should_evict_key, should_evict_value)
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218 evicted_key, evicted_value = nil, nil;
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219 c2:set(k, v);
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220 assert.are.equal(evicted_key, should_evict_key);
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221 assert.are.equal(evicted_value, should_evict_value);
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222 end
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223 set("a", 1)
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224 set("a", 1)
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225 set("a", 1)
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226 set("a", 1)
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227 set("a", 1)
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228
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229 set("b", 2)
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230 set("c", 3)
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231 set("b", 2)
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232 set("d", 4, "a", 1)
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233 set("e", 5, "c", 3)
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234 end
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235
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236 do
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237 local evicted_key, evicted_value;
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238 local c3 = cache.new(1, function (_key, _value)
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239 evicted_key, evicted_value = _key, _value;
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240 if _key == "a" then
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241 -- Sanity check for what we're evicting
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242 assert.are.equal(_key, "a");
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243 assert.are.equal(_value, 1);
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244 -- We're going to block eviction of this key/value, so set to nil...
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245 evicted_key, evicted_value = nil, nil;
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246 -- Returning false to block eviction
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247 return false
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248 end
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249 end);
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250 local function set(k, v, should_evict_key, should_evict_value)
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251 evicted_key, evicted_value = nil, nil;
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252 local ret = c3:set(k, v);
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253 assert.are.equal(evicted_key, should_evict_key);
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254 assert.are.equal(evicted_value, should_evict_value);
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255 return ret;
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256 end
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257 set("a", 1)
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258 set("a", 1)
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259 set("a", 1)
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260 set("a", 1)
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261 set("a", 1)
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262
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263 -- Our on_evict prevents "a" from being evicted, causing this to fail...
4878e4159e12 Port tests to the `busted` test runner
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parents:
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264 assert.are.equal(set("b", 2), false, "Failed to prevent eviction, or signal result");
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265
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266 expect_kv("a", 1, c3:head());
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267 expect_kv("a", 1, c3:tail());
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268
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269 -- Check the final state is what we expect
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270 assert.are.equal(c3:get("a"), 1);
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271 assert.are.equal(c3:get("b"), nil);
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272 assert.are.equal(c3:count(), 1);
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273 end
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parents:
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274
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275
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276 local c4 = cache.new(3, false);
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diff changeset
277
4878e4159e12 Port tests to the `busted` test runner
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278 assert.are.equal(c4:set("a", 1), true);
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279 assert.are.equal(c4:set("a", 1), true);
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parents:
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280 assert.are.equal(c4:set("a", 1), true);
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parents:
diff changeset
281 assert.are.equal(c4:set("a", 1), true);
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282 assert.are.equal(c4:set("b", 2), true);
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283 assert.are.equal(c4:set("c", 3), true);
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284 assert.are.equal(c4:set("d", 4), false);
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285 assert.are.equal(c4:set("d", 4), false);
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286 assert.are.equal(c4:set("d", 4), false);
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287
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288 expect_kv("c", 3, c4:head());
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289 expect_kv("a", 1, c4:tail());
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290
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291 local c5 = cache.new(3, function (k, v)
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292 if k == "a" then
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293 return nil;
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294 elseif k == "b" then
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295 return true;
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296 end
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297 return false;
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298 end);
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299
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300 assert.are.equal(c5:set("a", 1), true);
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301 assert.are.equal(c5:set("a", 1), true);
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302 assert.are.equal(c5:set("a", 1), true);
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303 assert.are.equal(c5:set("a", 1), true);
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304 assert.are.equal(c5:set("b", 2), true);
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305 assert.are.equal(c5:set("c", 3), true);
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306 assert.are.equal(c5:set("d", 4), true); -- "a" evicted (cb returned nil)
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307 assert.are.equal(c5:set("d", 4), true); -- nop
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308 assert.are.equal(c5:set("d", 4), true); -- nop
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309 assert.are.equal(c5:set("e", 5), true); -- "b" evicted (cb returned true)
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310 assert.are.equal(c5:set("f", 6), false); -- "c" won't evict (cb returned false)
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311
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312 expect_kv("e", 5, c5:head());
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313 expect_kv("c", 3, c5:tail());
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314 end);
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315 end);
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316 end);