prosody
0598d822614f
spec/util_throttle_spec.lua

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spec/util_throttle_spec.lua @ 12894:0598d822614f 0.12 0.12.3

mod_websocket: Fire pre-session-close event (fixes #1800) This event was added in a7c183bb4e64 and is required to make mod_smacks know that a session was intentionally closed and shouldn't be hibernated (see fcea4d9e7502). Because this was missing from mod_websocket's session.close(), mod_smacks would always attempt to hibernate websocket sessions even if they closed cleanly. That mod_websocket has its own copy of session.close() is something to fix another day (probably not in the stable branch). So for now this commit makes the minimal change to get things working again. Thanks to Damian and the Jitsi team for reporting.
author Matthew Wild <mwild1@gmail.com>
date Mon, 20 Feb 2023 18:10:15 +0000
parent 9993:02a41315d275
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1
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3 -- Mock util.time
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4 local now = 0; -- wibbly-wobbly... timey-wimey... stuff
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5 local function later(n)
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6 now = now + n; -- time passes at a different rate
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7 end
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8 package.loaded["util.time"] = {
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9 now = function() return now; end
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10 }
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13 local throttle = require "util.throttle";
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14
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15 describe("util.throttle", function()
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16 describe("#create()", function()
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17 it("should be created with correct values", function()
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18 now = 5;
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19 local a = throttle.create(3, 10);
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20 assert.same(a, { balance = 3, max = 3, rate = 0.3, t = 5 });
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22 local a = throttle.create(3, 5);
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23 assert.same(a, { balance = 3, max = 3, rate = 0.6, t = 5 });
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25 local a = throttle.create(1, 1);
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26 assert.same(a, { balance = 1, max = 1, rate = 1, t = 5 });
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28 local a = throttle.create(10, 10);
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29 assert.same(a, { balance = 10, max = 10, rate = 1, t = 5 });
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31 local a = throttle.create(10, 1);
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32 assert.same(a, { balance = 10, max = 10, rate = 10, t = 5 });
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33 end);
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34 end);
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35
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36 describe("#update()", function()
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37 it("does nothing when no time has passed, even if balance is not full", function()
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38 now = 5;
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39 local a = throttle.create(10, 10);
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40 for i=1,5 do
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41 a:update();
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42 assert.same(a, { balance = 10, max = 10, rate = 1, t = 5 });
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43 end
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44 a.balance = 0;
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45 for i=1,5 do
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46 a:update();
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47 assert.same(a, { balance = 0, max = 10, rate = 1, t = 5 });
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48 end
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49 end);
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50 it("updates only time when time passes but balance is full", function()
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51 now = 5;
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52 local a = throttle.create(10, 10);
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53 for i=1,5 do
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54 later(5);
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55 a:update();
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56 assert.same(a, { balance = 10, max = 10, rate = 1, t = 5 + i*5 });
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57 end
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58 end);
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59 it("updates balance when balance has room to grow as time passes", function()
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60 now = 5;
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61 local a = throttle.create(10, 10);
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62 a.balance = 0;
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63 assert.same(a, { balance = 0, max = 10, rate = 1, t = 5 });
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64
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65 later(1);
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66 a:update();
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67 assert.same(a, { balance = 1, max = 10, rate = 1, t = 6 });
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68
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69 later(3);
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70 a:update();
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71 assert.same(a, { balance = 4, max = 10, rate = 1, t = 9 });
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72
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73 later(10);
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74 a:update();
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75 assert.same(a, { balance = 10, max = 10, rate = 1, t = 19 });
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76 end);
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77 it("handles 10 x 0.1s updates the same as 1 x 1s update ", function()
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78 now = 5;
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79 local a = throttle.create(1, 1);
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80
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81 a.balance = 0;
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82 later(1);
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83 a:update();
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84 assert.same(a, { balance = 1, max = 1, rate = 1, t = now });
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85
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86 a.balance = 0;
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87 for i=1,10 do
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88 later(0.1);
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89 a:update();
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90 end
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91 assert(math.abs(a.balance - 1) < 0.0001); -- incremental updates cause rounding errors
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92 end);
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93 end);
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94
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95 -- describe("po")
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96
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97 describe("#poll()", function()
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98 it("should only allow successful polls until cost is hit", function()
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99 now = 5;
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100
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101 local a = throttle.create(3, 10);
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102 assert.same(a, { balance = 3, max = 3, rate = 0.3, t = 5 });
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103
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104 assert.is_true(a:poll(1)); -- 3 -> 2
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105 assert.same(a, { balance = 2, max = 3, rate = 0.3, t = 5 });
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106
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107 assert.is_true(a:poll(2)); -- 2 -> 1
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108 assert.same(a, { balance = 0, max = 3, rate = 0.3, t = 5 });
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109
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110 assert.is_false(a:poll(1)); -- MEEP, out of credits!
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parents: 8236
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111 assert.is_false(a:poll(1)); -- MEEP, out of credits!
9499db96c032 util.throttle: Fix initial time setting (double accounting the first time) and fractional balance updates (0.1*10 was not the same as 1*1)
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parents: 8236
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112 assert.same(a, { balance = 0, max = 3, rate = 0.3, t = 5 });
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113 end);
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parents: 8236
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114
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parents: 8236
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115 it("should not allow polls more than the cost", function()
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116 now = 0;
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parents: 8236
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117
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118 local a = throttle.create(10, 10);
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119 assert.same(a, { balance = 10, max = 10, rate = 1, t = 0 });
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120
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121 assert.is_false(a:poll(11));
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122 assert.same(a, { balance = 10, max = 10, rate = 1, t = 0 });
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123
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124 assert.is_true(a:poll(6));
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125 assert.same(a, { balance = 4, max = 10, rate = 1, t = 0 });
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126
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127 assert.is_false(a:poll(5));
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128 assert.same(a, { balance = 4, max = 10, rate = 1, t = 0 });
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129
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130 -- fractional
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131 assert.is_true(a:poll(3.5));
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132 assert.same(a, { balance = 0.5, max = 10, rate = 1, t = 0 });
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133
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134 assert.is_true(a:poll(0.25));
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135 assert.same(a, { balance = 0.25, max = 10, rate = 1, t = 0 });
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136
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137 assert.is_false(a:poll(0.3));
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138 assert.same(a, { balance = 0.25, max = 10, rate = 1, t = 0 });
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139
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140 assert.is_true(a:poll(0.25));
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141 assert.same(a, { balance = 0, max = 10, rate = 1, t = 0 });
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142
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143 assert.is_false(a:poll(0.1));
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144 assert.same(a, { balance = 0, max = 10, rate = 1, t = 0 });
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145
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146 assert.is_true(a:poll(0));
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147 assert.same(a, { balance = 0, max = 10, rate = 1, t = 0 });
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4878e4159e12 Port tests to the `busted` test runner
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148 end);
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149 end);
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150 end);