prosody
bad813103cd4
spec/util_queue_spec.lua

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spec/util_queue_spec.lua @ 12352:bad813103cd4

prosody.cfg.lua.dist: Remove comment about mod_*.lua above modules_enabled This is a very old statement, but people generally don't need to check for the files, and shouldn't be encouraged to put them in Prosody's source dir. The installer will be the way forward for most people, and hg for the rest. Manually moving files into the right place is not something most users should be doing.
author Matthew Wild <mwild1@gmail.com>
date Thu, 03 Mar 2022 10:24:59 +0000
parent 9901:c8b75239846c
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rev   line source
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1
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2 local queue = require "util.queue";
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3
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4 describe("util.queue", 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 do
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9 local q = queue.new(10);
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10
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11 assert.are.equal(q.size, 10);
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12 assert.are.equal(q:count(), 0);
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13
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14 assert.is_true(q:push("one"));
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15 assert.is_true(q:push("two"));
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16 assert.is_true(q:push("three"));
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17
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18 for i = 4, 10 do
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19 assert.is_true(q:push("hello"));
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20 assert.are.equal(q:count(), i, "count is not "..i.."("..q:count()..")");
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21 end
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22 assert.are.equal(q:push("hello"), nil, "queue overfull!");
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23 assert.are.equal(q:push("hello"), nil, "queue overfull!");
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24 assert.are.equal(q:pop(), "one", "queue item incorrect");
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25 assert.are.equal(q:pop(), "two", "queue item incorrect");
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26 assert.is_true(q:push("hello"));
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27 assert.is_true(q:push("hello"));
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28 assert.are.equal(q:pop(), "three", "queue item incorrect");
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29 assert.is_true(q:push("hello"));
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30 assert.are.equal(q:push("hello"), nil, "queue overfull!");
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31 assert.are.equal(q:push("hello"), nil, "queue overfull!");
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32
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33 assert.are.equal(q:count(), 10, "queue count incorrect");
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34
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35 for _ = 1, 10 do
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36 assert.are.equal(q:pop(), "hello", "queue item incorrect");
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37 end
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38
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39 assert.are.equal(q:count(), 0, "queue count incorrect");
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40 assert.are.equal(q:pop(), nil, "empty queue pops non-nil result");
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41 assert.are.equal(q:count(), 0, "popping empty queue affects count");
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42
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43 assert.are.equal(q:peek(), nil, "empty queue peeks non-nil result");
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44 assert.are.equal(q:count(), 0, "peeking empty queue affects count");
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45
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46 assert.is_true(q:push(1));
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47 for i = 1, 1001 do
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48 assert.are.equal(q:pop(), i);
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49 assert.are.equal(q:count(), 0);
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50 assert.is_true(q:push(i+1));
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51 assert.are.equal(q:count(), 1);
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52 end
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53 assert.are.equal(q:pop(), 1002);
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54 assert.is_true(q:push(1));
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55 for i = 1, 1000 do
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56 assert.are.equal(q:pop(), i);
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57 assert.is_true(q:push(i+1));
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58 end
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59 assert.are.equal(q:pop(), 1001);
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60 assert.are.equal(q:count(), 0);
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61 end
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62
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63 do
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64 -- Test queues that purge old items when pushing to a full queue
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65 local q = queue.new(10, true);
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66
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67 for i = 1, 10 do
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68 q:push(i);
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69 end
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70
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71 assert.are.equal(q:count(), 10);
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72
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73 assert.is_true(q:push(11));
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74 assert.are.equal(q:count(), 10);
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75 assert.are.equal(q:pop(), 2); -- First item should have been purged
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76 assert.are.equal(q:peek(), 3);
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77
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78 for i = 12, 32 do
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79 assert.is_true(q:push(i));
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80 end
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81
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82 assert.are.equal(q:count(), 10);
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83 assert.are.equal(q:pop(), 23);
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84 end
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85
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86 do
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87 -- Test iterator
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88 local q = queue.new(10, true);
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89
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90 for i = 1, 10 do
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91 q:push(i);
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92 end
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93
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94 local i = 0;
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95 for item in q:items() do
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96 i = i + 1;
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97 assert.are.equal(item, i, "unexpected item returned by iterator")
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98 end
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99 end
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100
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101 end);
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102 end);
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103 describe("consume()", function ()
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104 it("should work", function ()
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105 local q = queue.new(10);
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106 for i = 1, 5 do
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107 q:push(i);
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108 end
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109 local c = 0;
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110 for i in q:consume() do
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111 assert(i == c + 1);
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112 assert(q:count() == (5-i));
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113 c = i;
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114 end
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115 end);
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116
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117 it("should work even if items are pushed in the loop", function ()
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118 local q = queue.new(10);
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119 for i = 1, 5 do
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120 q:push(i);
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121 end
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122 local c = 0;
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123 for i in q:consume() do
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124 assert(i == c + 1);
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125 if c < 3 then
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126 assert(q:count() == (5-i));
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127 else
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128 assert(q:count() == (6-i));
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129 end
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130
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131 c = i;
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132
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133 if c == 3 then
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134 q:push(6);
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135 end
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136 end
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137 assert.equal(c, 6);
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138 end);
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139 end);
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140 end);