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spec/util_async_spec.lua

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spec/util_async_spec.lua @ 8614:bfbafeced0c4

util.async: Yet more tests
author Matthew Wild <mwild1@gmail.com>
date Sat, 17 Mar 2018 11:47:07 +0000
parent 8609:9f6ab206d741
child 8615:e77b37de482e
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1 local async = require "util.async";
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2
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3 describe("util.async", function()
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4 local debug = false;
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5 local print = print;
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6 if debug then
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7 require "util.logger".add_simple_sink(print);
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8 else
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9 print = function () end
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10 end
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11 local function new(func, name)
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12 local log = {};
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13 return async.runner(func, setmetatable({}, {
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14 __index = function (_, event)
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15 return function (runner, err)
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16 print(name, "event", event, err)
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17 print "--"
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18 table.insert(log, { event = event, err = err });
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19 end;
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20 end;
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21 })), log;
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22 end
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23 describe("#runner", function()
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24 it("should work", function()
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25 local r, l = new(function (item) assert(type(item) == "number") end);
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26 r:run(1);
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27 r:run(2);
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28 end);
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29
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30 it("should be ready after creation", function ()
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31 local r = async.runner(function (item) end);
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32 assert.equal(r.state, "ready");
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33 end);
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34
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35 it("should do nothing if the queue is empty", function ()
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36 local did_run;
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37 local r = async.runner(function (item) did_run = true end);
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38 r:run();
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39 assert.equal(r.state, "ready");
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40 assert.is_nil(did_run);
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41 r:run("hello");
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42 assert.is_true(did_run);
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43 end);
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44
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45 it("should support queuing work items without running", function ()
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46 local did_run;
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47 local r = async.runner(function (item) did_run = true end);
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48 r:enqueue("hello");
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49 assert.equal(r.state, "ready");
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50 assert.is_nil(did_run);
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51 r:run();
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52 assert.is_true(did_run);
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53 end);
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54
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55 it("should support queuing multiple work items", function ()
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56 local last_item;
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57 local s = spy(function (item) last_item = item; end);
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58 local r = async.runner(s);
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59 r:enqueue("hello");
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60 r:enqueue("there");
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61 r:enqueue("world");
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62 assert.equal(r.state, "ready");
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63 r:run();
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64 assert.equal(r.state, "ready");
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65 assert.spy(s).was.called(3);
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66 assert.equal(last_item, "world");
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67 end);
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68
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69 it("should support all simple data types", function ()
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70 local last_item;
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71 local s = spy(function (item) last_item = item; end);
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72 local r = async.runner(s);
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73 local values = { {}, 123, "hello", true, false };
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74 for i = 1, #values do
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75 r:enqueue(values[i]);
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76 end
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77 assert.equal(r.state, "ready");
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78 r:run();
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79 assert.equal(r.state, "ready");
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80 assert.spy(s).was.called(#values);
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81 for i = 1, #values do
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82 assert.spy(s).was.called_with(values[i]);
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83 end
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84 assert.equal(last_item, values[#values]);
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85 end);
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86
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87 describe("#errors", function ()
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88 local last_processed_item, last_error;
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89 local r;
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90 local wait, done;
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91 r = async.runner(function (item)
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92 if item == "error" then
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93 error({ e = "test error" });
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94 elseif item == "wait" then
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95 wait, done = async.waiter();
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96 wait();
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97 error({ e = "post wait error" });
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98 end
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99 last_processed_item = item;
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100 end, {
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101 error = function (runner, err)
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102 assert.equal(r, runner);
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103 last_error = err;
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104 end;
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105 });
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106
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107 randomize(false);
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108
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109 it("should notify", function ()
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110 local last_processed_item, last_error;
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111 local r;
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112 r = async.runner(function (item)
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113 if item == "error" then
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114 error({ e = "test error" });
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115 end
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116 last_processed_item = item;
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117 end, {
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118 error = function (runner, err)
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119 assert.equal(r, runner);
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120 last_error = err;
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121 end;
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122 });
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123
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124 r:run("hello");
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125 assert.equal(r.state, "ready");
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126 assert.equal(last_processed_item, "hello");
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127
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128 assert.equal(last_error, nil);
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129 r:run("error");
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130 assert.is_table(last_error);
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131 assert.equal(last_error.e, "test error");
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132 last_error = nil;
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133 assert.equal(r.state, "ready");
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134 assert.equal(last_processed_item, "hello");
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135 end);
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136 it("should not be fatal to the runner", function ()
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137 r:run("world");
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138 assert.equal(r.state, "ready");
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139 assert.equal(last_processed_item, "world");
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140 end);
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141 it("should work despite a #waiter", function ()
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142 -- This test covers an important case where a runner
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143 -- throws an error while being executed outside of the
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144 -- main loop. This happens when it was blocked ('waiting'),
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145 -- and then released (via a call to done()).
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146 last_error = nil;
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147 r:run("wait");
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148 assert.equal(r.state, "waiting");
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149 done();
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150 -- At this point an error happens (state goes error->ready)
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151 assert.equal(r.state, "ready");
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152 assert.is_table(last_error);
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153 assert.equal(last_error.e, "post wait error");
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154 last_error = nil;
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155 r:run("hello again");
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156 assert.equal(r.state, "ready");
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157 assert.equal(last_processed_item, "hello again");
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158 end);
8607
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159 end);
8605
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160 end);
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161 describe("#waiter", function()
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162 it("should error outside of async context", function ()
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163 assert.has_error(function ()
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164 async.waiter();
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165 end);
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166 end);
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167 it("should work", function ()
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168 local wait, done;
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169
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170 local r, l = new(function (item)
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171 assert(type(item) == "number")
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172 if item == 3 then
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173 wait, done = async.waiter();
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174 wait();
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175 end
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176 end);
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177
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178 r:run(1);
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179 assert(r.state == "ready");
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180 r:run(2);
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181 assert(r.state == "ready");
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182 r:run(3);
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183 assert(r.state == "waiting");
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184 done();
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185 assert(r.state == "ready");
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186 --for k, v in ipairs(l) do print(k,v) end
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187 end);
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188
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189 it("should work", function ()
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190 --------------------
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191 local wait, done;
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192 local last_item = 0;
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193 local r, l = new(function (item)
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194 assert(type(item) == "number")
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195 assert(item == last_item + 1);
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196 last_item = item;
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197 if item == 3 then
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198 wait, done = async.waiter();
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199 wait();
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200 end
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201 end);
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202
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203 r:run(1);
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204 assert(r.state == "ready");
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205 r:run(2);
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206 assert(r.state == "ready");
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207 r:run(3);
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208 assert(r.state == "waiting");
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209 r:run(4);
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210 assert(r.state == "waiting");
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211 done();
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212 assert(r.state == "ready");
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213 --for k, v in ipairs(l) do print(k,v) end
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214 end);
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215 it("should work", function ()
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216 --------------------
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217 local wait, done;
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218 local last_item = 0;
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219 local r, l = new(function (item)
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220 assert(type(item) == "number")
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221 assert((item == last_item + 1) or item == 3);
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222 last_item = item;
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223 if item == 3 then
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224 wait, done = async.waiter();
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225 wait();
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226 end
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227 end);
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228
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229 r:run(1);
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230 assert(r.state == "ready");
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231 r:run(2);
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232 assert(r.state == "ready");
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233
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234 local dones = {};
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235 r:run(3);
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236 assert(r.state == "waiting");
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237 r:run(3);
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238 assert(r.state == "waiting");
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239 r:run(3);
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240 assert(r.state == "waiting");
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241 r:run(4);
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242 assert(r.state == "waiting");
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243
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244 for i = 1, 3 do
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245 done();
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246 if i < 3 then
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247 assert(r.state == "waiting");
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248 end
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249 end
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250
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251 assert(r.state == "ready");
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252 --for k, v in ipairs(l) do print(k,v) end
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253 end);
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254 it("should work", function ()
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255 --------------------
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256 local wait, done;
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257 local last_item = 0;
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258 local r, l = new(function (item)
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259 assert(type(item) == "number")
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260 assert((item == last_item + 1) or item == 3);
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261 last_item = item;
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262 if item == 3 then
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263 wait, done = async.waiter();
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264 wait();
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265 end
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266 end);
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267
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268 r:run(1);
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269 assert(r.state == "ready");
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270 r:run(2);
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271 assert(r.state == "ready");
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272
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273 local dones = {};
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274 r:run(3);
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275 assert(r.state == "waiting");
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276 r:run(3);
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277 assert(r.state == "waiting");
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278
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279 for i = 1, 2 do
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280 done();
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281 if i < 2 then
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282 assert(r.state == "waiting");
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283 end
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284 end
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285
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286 assert(r.state == "ready");
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287 r:run(4);
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288 assert(r.state == "ready");
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289
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290 assert(r.state == "ready");
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291 --for k, v in ipairs(l) do print(k,v) end
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292 end);
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293 it("should work with multiple runners in parallel", function ()
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294 -- Now with multiple runners
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295 --------------------
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296 local wait1, done1;
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297 local last_item1 = 0;
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298 local r1, l1 = new(function (item)
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299 assert(type(item) == "number")
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300 assert((item == last_item1 + 1) or item == 3);
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301 last_item1 = item;
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302 if item == 3 then
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303 wait1, done1 = async.waiter();
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304 wait1();
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305 end
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306 end, "r1");
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307
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308 local wait2, done2;
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309 local last_item2 = 0;
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310 local r2, l2 = new(function (item)
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311 assert(type(item) == "number")
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312 assert((item == last_item2 + 1) or item == 3);
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313 last_item2 = item;
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314 if item == 3 then
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315 wait2, done2 = async.waiter();
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316 wait2();
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317 end
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318 end, "r2");
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parents:
diff changeset
319
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diff changeset
320 r1:run(1);
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parents:
diff changeset
321 assert(r1.state == "ready");
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parents:
diff changeset
322 r1:run(2);
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parents:
diff changeset
323 assert(r1.state == "ready");
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Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
324
3a1efc0532cb util.async: Add tests
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diff changeset
325 local dones = {};
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diff changeset
326 r1:run(3);
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parents:
diff changeset
327 assert(r1.state == "waiting");
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diff changeset
328 r1:run(3);
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parents:
diff changeset
329 assert(r1.state == "waiting");
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parents:
diff changeset
330
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diff changeset
331 r2:run(1);
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Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
332 assert(r1.state == "waiting");
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parents:
diff changeset
333 assert(r2.state == "ready");
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Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
334
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
335 r2:run(2);
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parents:
diff changeset
336 assert(r1.state == "waiting");
3a1efc0532cb util.async: Add tests
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diff changeset
337 assert(r2.state == "ready");
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Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
338
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
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diff changeset
339 r2:run(3);
3a1efc0532cb util.async: Add tests
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parents:
diff changeset
340 assert(r1.state == "waiting");
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parents:
diff changeset
341 assert(r2.state == "waiting");
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parents:
diff changeset
342 done2();
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diff changeset
343
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diff changeset
344 r2:run(3);
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parents:
diff changeset
345 assert(r1.state == "waiting");
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parents:
diff changeset
346 assert(r2.state == "waiting");
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parents:
diff changeset
347 done2();
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diff changeset
348
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diff changeset
349 r2:run(4);
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Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
350 assert(r1.state == "waiting");
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Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
351 assert(r2.state == "ready");
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parents:
diff changeset
352
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
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diff changeset
353 for i = 1, 2 do
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354 done1();
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Matthew Wild <mwild1@gmail.com>
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355 if i < 2 then
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diff changeset
356 assert(r1.state == "waiting");
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357 end
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Matthew Wild <mwild1@gmail.com>
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358 end
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Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
359
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parents:
diff changeset
360 assert(r1.state == "ready");
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Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
361 r1:run(4);
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
362 assert(r1.state == "ready");
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
363
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
364 assert(r1.state == "ready");
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Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
365 --for k, v in ipairs(l1) do print(k,v) end
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Matthew Wild <mwild1@gmail.com>
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366 end);
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
367 it("should work work with multiple runners in parallel", function ()
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368 --------------------
3a1efc0532cb util.async: Add tests
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diff changeset
369 local wait1, done1;
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370 local last_item1 = 0;
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371 local r1, l1 = new(function (item)
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372 print("r1 processing ", item);
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parents:
diff changeset
373 assert(type(item) == "number")
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parents:
diff changeset
374 assert((item == last_item1 + 1) or item == 3);
3a1efc0532cb util.async: Add tests
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parents:
diff changeset
375 last_item1 = item;
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
376 if item == 3 then
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
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diff changeset
377 wait1, done1 = async.waiter();
3a1efc0532cb util.async: Add tests
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diff changeset
378 wait1();
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379 end
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diff changeset
380 end, "r1");
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parents:
diff changeset
381
3a1efc0532cb util.async: Add tests
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diff changeset
382 local wait2, done2;
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parents:
diff changeset
383 local last_item2 = 0;
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Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
384 local r2, l2 = new(function (item)
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diff changeset
385 print("r2 processing ", item);
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
386 assert.is_number(item);
3a1efc0532cb util.async: Add tests
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parents:
diff changeset
387 assert((item == last_item2 + 1) or item == 3);
3a1efc0532cb util.async: Add tests
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parents:
diff changeset
388 last_item2 = item;
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
389 if item == 3 then
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
390 wait2, done2 = async.waiter();
3a1efc0532cb util.async: Add tests
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parents:
diff changeset
391 wait2();
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
392 end
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
393 end, "r2");
3a1efc0532cb util.async: Add tests
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parents:
diff changeset
394
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
395 r1:run(1);
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
396 assert.equal(r1.state, "ready");
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
397 r1:run(2);
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
398 assert.equal(r1.state, "ready");
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
399
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
400 r1:run(5);
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
401 assert.equal(r1.state, "ready");
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
402
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
403 local dones = {};
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
404 r1:run(3);
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
405 assert.equal(r1.state, "waiting");
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
406 r1:run(5); -- Will error, when we get to it
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
407 assert.equal(r1.state, "waiting");
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
408 done1();
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
409 assert.equal(r1.state, "ready");
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
410 r1:run(3);
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
411 assert.equal(r1.state, "waiting");
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
412
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
413 r2:run(1);
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
414 assert.equal(r1.state, "waiting");
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
415 assert.equal(r2.state, "ready");
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
416
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
417 r2:run(2);
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
418 assert.equal(r1.state, "waiting");
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
419 assert.equal(r2.state, "ready");
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
420
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
421 r2:run(3);
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
422 assert.equal(r1.state, "waiting");
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
423 assert.equal(r2.state, "waiting");
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
424
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
425 done2();
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
426 assert.equal(r1.state, "waiting");
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
427 assert.equal(r2.state, "ready");
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
428
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
429 r2:run(3);
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
430 assert.equal(r1.state, "waiting");
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
431 assert.equal(r2.state, "waiting");
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
432
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
433 done2();
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
434 assert.equal(r1.state, "waiting");
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
435 assert.equal(r2.state, "ready");
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
436
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
437 r2:run(4);
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
438 assert.equal(r1.state, "waiting");
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
439 assert.equal(r2.state, "ready");
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
440
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
441 done1();
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
442
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
443 assert.equal(r1.state, "ready");
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
444 r1:run(4);
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
445 assert.equal(r1.state, "ready");
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
446
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
447 assert.equal(r1.state, "ready");
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
448 --for k, v in ipairs(l1) do print(k,v) end
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
449 end);
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
450 end);
3a1efc0532cb util.async: Add tests
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
451 end);