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spec/util_promise_spec.lua

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spec/util_promise_spec.lua @ 13270:14bbfb2cc8dd default tip

lint: Teach luacheck about module:once Silence warning for using this introduced in 9c62ffbdf2ae
author Kim Alvefur <zash@zash.se>
date Sun, 15 Oct 2023 16:43:14 +0200
parent 12752:9ef8f248635c
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 local promise = require "util.promise";
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2
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3 describe("util.promise", function ()
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4 --luacheck: ignore 212/resolve 212/reject
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5 describe("new()", function ()
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6 it("returns a promise object", function ()
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7 assert(promise.new());
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8 end);
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9 end);
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10 it("supplies a sensible tostring()", function ()
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11 local s = tostring(promise.new());
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12 assert.truthy(s:find("promise", 1, true));
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13 assert.truthy(s:find("pending", 1, true));
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14 end);
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15 it("notifies immediately for fulfilled promises", function ()
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16 local p = promise.new(function (resolve)
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17 resolve("foo");
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18 end);
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19 local cb = spy.new(function (v)
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20 assert.equal("foo", v);
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21 end);
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22 p:next(cb);
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23 assert.spy(cb).was_called(1);
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24 end);
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25 it("notifies on fulfillment of pending promises", function ()
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26 local r;
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27 local p = promise.new(function (resolve)
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28 r = resolve;
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29 end);
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30 local cb = spy.new(function (v)
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31 assert.equal("foo", v);
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32 end);
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33 p:next(cb);
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34 assert.spy(cb).was_called(0);
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35 r("foo");
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36 assert.spy(cb).was_called(1);
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37 end);
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38 it("ignores resolve/reject of settled promises", function ()
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39 local res, rej;
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40 local p = promise.new(function (resolve, reject)
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41 res, rej = resolve, reject;
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42 end);
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43 local cb = spy.new(function (v)
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44 assert.equal("foo", v);
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45 end);
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46 p:next(cb, cb);
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47 assert.spy(cb).was_called(0);
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48 res("foo");
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49 assert.spy(cb).was_called(1);
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50 rej("bar");
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51 assert.spy(cb).was_called(1);
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52 rej(promise.resolve("bar"));
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53 assert.spy(cb).was_called(1);
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54 res(promise.reject("bar"));
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55 assert.spy(cb).was_called(1);
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56 res(promise.resolve("bar"));
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57 assert.spy(cb).was_called(1);
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58 end);
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59 it("allows chaining :next() calls", function ()
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60 local r;
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61 local result;
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62 local p = promise.new(function (resolve)
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63 r = resolve;
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64 end);
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65 local cb1 = spy.new(function (v)
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66 assert.equal("foo", v);
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67 return "bar";
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68 end);
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69 local cb2 = spy.new(function (v)
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70 assert.equal("bar", v);
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71 result = v;
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72 end);
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73 p:next(cb1):next(cb2);
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74 assert.spy(cb1).was_called(0);
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75 assert.spy(cb2).was_called(0);
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76 r("foo");
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77 assert.spy(cb1).was_called(1);
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78 assert.spy(cb2).was_called(1);
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79 assert.equal("bar", result);
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80 end);
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81 it("supports multiple :next() calls on the same promise", function ()
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82 local r;
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83 local result;
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84 local p = promise.new(function (resolve)
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85 r = resolve;
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86 end);
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87 local cb1 = spy.new(function (v)
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88 assert.equal("foo", v);
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89 result = v;
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90 end);
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91 local cb2 = spy.new(function (v)
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92 assert.equal("foo", v);
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93 result = v;
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94 end);
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95 p:next(cb1);
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96 p:next(cb2);
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97 assert.spy(cb1).was_called(0);
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98 assert.spy(cb2).was_called(0);
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99 r("foo");
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100 assert.spy(cb1).was_called(1);
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101 assert.spy(cb2).was_called(1);
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102 assert.equal("foo", result);
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103 end);
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104 it("automatically rejects on error", function ()
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105 local r;
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106 local p = promise.new(function (resolve)
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107 r = resolve;
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108 error("oh no");
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109 end);
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110 local cb = spy.new(function () end);
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111 local err_cb = spy.new(function (v)
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112 assert.equal("oh no", v);
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113 end);
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114 p:next(cb, err_cb);
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115 assert.spy(cb).was_called(0);
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116 assert.spy(err_cb).was_called(1);
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117 r("foo");
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118 assert.spy(cb).was_called(0);
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119 assert.spy(err_cb).was_called(1);
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120 end);
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121 it("supports reject()", function ()
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122 local r, result;
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123 local p = promise.new(function (resolve, reject)
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124 r = reject;
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125 end);
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126 local cb = spy.new(function () end);
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127 local err_cb = spy.new(function (v)
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128 result = v;
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129 assert.equal("oh doh", v);
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130 end);
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131 p:next(cb, err_cb);
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132 assert.spy(cb).was_called(0);
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133 assert.spy(err_cb).was_called(0);
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134 r("oh doh");
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135 assert.spy(cb).was_called(0);
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136 assert.spy(err_cb).was_called(1);
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137 assert.equal("oh doh", result);
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138 end);
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139 it("supports chaining of rejected promises", function ()
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140 local r, result;
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141 local p = promise.new(function (resolve, reject)
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142 r = reject;
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143 end);
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144 local cb = spy.new(function () end);
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145 local err_cb = spy.new(function (v)
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146 result = v;
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147 assert.equal("oh doh", v);
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148 return "ok"
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149 end);
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150 local cb2 = spy.new(function (v)
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151 result = v;
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152 end);
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153 local err_cb2 = spy.new(function () end);
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154 p:next(cb, err_cb):next(cb2, err_cb2)
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155 assert.spy(cb).was_called(0);
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156 assert.spy(err_cb).was_called(0);
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157 assert.spy(cb2).was_called(0);
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158 assert.spy(err_cb2).was_called(0);
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159 r("oh doh");
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160 assert.spy(cb).was_called(0);
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161 assert.spy(err_cb).was_called(1);
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162 assert.spy(cb2).was_called(1);
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163 assert.spy(err_cb2).was_called(0);
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164 assert.equal("ok", result);
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165 end);
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166
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167 it("propagates errors down the chain, even when some handlers are not provided", function ()
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168 local r, result;
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169 local test_error = {};
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170 local p = promise.new(function (resolve, reject)
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171 r = reject;
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172 end);
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173 local cb = spy.new(function () end);
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174 local err_cb = spy.new(function (e) result = e end);
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175 local p2 = p:next(function () error(test_error) end);
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176 local p3 = p2:next(cb)
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177 p3:catch(err_cb);
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178 assert.spy(cb).was_called(0);
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179 assert.spy(err_cb).was_called(0);
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180 r("oh doh");
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181 assert.spy(cb).was_called(0);
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182 assert.spy(err_cb).was_called(1);
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183 assert.spy(err_cb).was_called_with("oh doh");
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184 assert.equal("oh doh", result);
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185 end);
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186
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187 it("propagates values down the chain, even when some handlers are not provided", function ()
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188 local r;
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189 local p = promise.new(function (resolve, reject)
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190 r = resolve;
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191 end);
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192 local cb = spy.new(function () end);
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193 local err_cb = spy.new(function () end);
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194 local p2 = p:next(function (v) return v; end);
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195 local p3 = p2:catch(err_cb)
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196 p3:next(cb);
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197 assert.spy(cb).was_called(0);
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198 assert.spy(err_cb).was_called(0);
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199 r(1337);
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200 assert.spy(cb).was_called(1);
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201 assert.spy(cb).was_called_with(1337);
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202 assert.spy(err_cb).was_called(0);
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203 end);
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204
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205 it("fulfilled promises do not call error handlers and do propagate value", function ()
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206 local p = promise.resolve("foo");
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207 local cb = spy.new(function () end);
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208 local p2 = p:catch(cb);
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209 assert.spy(cb).was_called(0);
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210
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211 local cb2 = spy.new(function () end);
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212 p2:catch(cb2);
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213 assert.spy(cb2).was_called(0);
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214 end);
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215
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216 it("rejected promises do not call fulfilled handlers and do propagate reason", function ()
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217 local p = promise.reject("foo");
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218 local cb = spy.new(function () end);
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219 local p2 = p:next(cb);
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220 assert.spy(cb).was_called(0);
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221
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222 local cb2 = spy.new(function () end);
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223 local cb2_err = spy.new(function () end);
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224 p2:next(cb2, cb2_err);
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225 assert.spy(cb2).was_called(0);
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226 assert.spy(cb2_err).was_called(1);
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227 assert.spy(cb2_err).was_called_with("foo");
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228 end);
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229
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230 describe("allows callbacks to return", function ()
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231 it("pending promises", function ()
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232 local r;
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233 local p = promise.resolve()
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234 local cb = spy.new(function ()
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235 return promise.new(function (resolve)
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236 r = resolve;
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237 end);
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238 end);
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239 local cb2 = spy.new(function () end);
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240 p:next(cb):next(cb2);
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241 assert.spy(cb).was_called(1);
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242 assert.spy(cb2).was_called(0);
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243 r("hello");
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244 assert.spy(cb).was_called(1);
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245 assert.spy(cb2).was_called(1);
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246 assert.spy(cb2).was_called_with("hello");
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247 end);
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248
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249 it("resolved promises", function ()
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250 local p = promise.resolve()
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251 local cb = spy.new(function ()
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252 return promise.resolve("hello");
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253 end);
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254 local cb2 = spy.new(function () end);
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255 p:next(cb):next(cb2);
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256 assert.spy(cb).was_called(1);
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257 assert.spy(cb2).was_called(1);
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258 assert.spy(cb2).was_called_with("hello");
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259 end);
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260
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261 it("rejected promises", function ()
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262 local p = promise.resolve()
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263 local cb = spy.new(function ()
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264 return promise.reject("hello");
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265 end);
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266 local cb2 = spy.new(function ()
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267 return promise.reject("goodbye");
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268 end);
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269 local cb3 = spy.new(function () end);
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270 p:next(cb):catch(cb2):catch(cb3);
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271 assert.spy(cb).was_called(1);
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272 assert.spy(cb2).was_called(1);
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273 assert.spy(cb2).was_called_with("hello");
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274 assert.spy(cb3).was_called(1);
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275 assert.spy(cb3).was_called_with("goodbye");
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276 end);
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277
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278 it("ordinary values", function ()
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279 local p = promise.resolve()
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280 local cb = spy.new(function ()
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281 return "hello"
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282 end);
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283 local cb2 = spy.new(function () end);
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284 p:next(cb):next(cb2);
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285 assert.spy(cb).was_called(1);
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286 assert.spy(cb2).was_called(1);
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287 assert.spy(cb2).was_called_with("hello");
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288 end);
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289
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290 it("nil", function ()
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291 local p = promise.resolve()
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292 local cb = spy.new(function ()
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293 return
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294 end);
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295 local cb2 = spy.new(function () end);
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296 p:next(cb):next(cb2);
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297 assert.spy(cb).was_called(1);
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298 assert.spy(cb2).was_called(1);
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299 assert.spy(cb2).was_called_with(nil);
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300 end);
9557
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301 end);
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302
9456
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303 describe("race()", function ()
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304 it("works with fulfilled promises", function ()
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305 local p1, p2 = promise.resolve("yep"), promise.resolve("nope");
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306 local p = promise.race({ p1, p2 });
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307 local result;
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308 p:next(function (v)
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309 result = v;
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310 end);
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311 assert.equal("yep", result);
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312 end);
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313 it("works with pending promises", function ()
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314 local r1, r2;
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315 local p1, p2 = promise.new(function (resolve) r1 = resolve end), promise.new(function (resolve) r2 = resolve end);
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316 local p = promise.race({ p1, p2 });
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317
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318 local result;
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319 local cb = spy.new(function (v)
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320 result = v;
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321 end);
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322 p:next(cb);
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323 assert.spy(cb).was_called(0);
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324 r2("yep");
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325 r1("nope");
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326 assert.spy(cb).was_called(1);
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327 assert.equal("yep", result);
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328 end);
d54a0e129af8 util.promise: ES6-like API for promises
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parents:
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329 end);
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330 describe("all()", function ()
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331 it("works with fulfilled promises", function ()
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332 local p1, p2 = promise.resolve("yep"), promise.resolve("nope");
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333 local p = promise.all({ p1, p2 });
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334 local result;
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335 p:next(function (v)
d54a0e129af8 util.promise: ES6-like API for promises
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336 result = v;
d54a0e129af8 util.promise: ES6-like API for promises
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337 end);
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338 assert.same({ "yep", "nope" }, result);
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339 end);
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parents:
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340 it("works with pending promises", function ()
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341 local r1, r2;
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342 local p1, p2 = promise.new(function (resolve) r1 = resolve end), promise.new(function (resolve) r2 = resolve end);
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343 local p = promise.all({ p1, p2 });
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344
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345 local result;
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346 local cb = spy.new(function (v)
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347 result = v;
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348 end);
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parents:
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349 p:next(cb);
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350 assert.spy(cb).was_called(0);
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351 r2("yep");
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352 assert.spy(cb).was_called(0);
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353 r1("nope");
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354 assert.spy(cb).was_called(1);
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355 assert.same({ "nope", "yep" }, result);
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diff changeset
356 end);
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parents:
diff changeset
357 it("rejects if any promise rejects", function ()
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parents:
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358 local r1, r2;
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parents:
diff changeset
359 local p1 = promise.new(function (resolve, reject) r1 = reject end);
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parents:
diff changeset
360 local p2 = promise.new(function (resolve, reject) r2 = reject end);
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parents:
diff changeset
361 local p = promise.all({ p1, p2 });
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parents:
diff changeset
362
d54a0e129af8 util.promise: ES6-like API for promises
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parents:
diff changeset
363 local result;
d54a0e129af8 util.promise: ES6-like API for promises
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parents:
diff changeset
364 local cb = spy.new(function (v)
d54a0e129af8 util.promise: ES6-like API for promises
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parents:
diff changeset
365 result = v;
d54a0e129af8 util.promise: ES6-like API for promises
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parents:
diff changeset
366 end);
d54a0e129af8 util.promise: ES6-like API for promises
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parents:
diff changeset
367 local cb_err = spy.new(function (v)
d54a0e129af8 util.promise: ES6-like API for promises
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parents:
diff changeset
368 result = v;
d54a0e129af8 util.promise: ES6-like API for promises
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parents:
diff changeset
369 end);
d54a0e129af8 util.promise: ES6-like API for promises
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parents:
diff changeset
370 p:next(cb, cb_err);
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parents:
diff changeset
371 assert.spy(cb).was_called(0);
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
372 assert.spy(cb_err).was_called(0);
d54a0e129af8 util.promise: ES6-like API for promises
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parents:
diff changeset
373 r2("fail");
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parents:
diff changeset
374 assert.spy(cb).was_called(0);
d54a0e129af8 util.promise: ES6-like API for promises
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parents:
diff changeset
375 assert.spy(cb_err).was_called(1);
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
376 r1("nope");
d54a0e129af8 util.promise: ES6-like API for promises
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parents:
diff changeset
377 assert.spy(cb).was_called(0);
d54a0e129af8 util.promise: ES6-like API for promises
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parents:
diff changeset
378 assert.spy(cb_err).was_called(1);
d54a0e129af8 util.promise: ES6-like API for promises
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parents:
diff changeset
379 assert.equal("fail", result);
d54a0e129af8 util.promise: ES6-like API for promises
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parents:
diff changeset
380 end);
11483
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parents: 10922
diff changeset
381 it("works with non-numeric keys", function ()
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parents: 10922
diff changeset
382 local r1, r2;
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parents: 10922
diff changeset
383 local p1, p2 = promise.new(function (resolve) r1 = resolve end), promise.new(function (resolve) r2 = resolve end);
24ce9d380475 util.promise: Add support for arbitrary keys in all()/all_settled()
Matthew Wild <mwild1@gmail.com>
parents: 10922
diff changeset
384 local p = promise.all({ [true] = p1, [false] = p2 });
24ce9d380475 util.promise: Add support for arbitrary keys in all()/all_settled()
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parents: 10922
diff changeset
385
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parents: 10922
diff changeset
386 local result;
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parents: 10922
diff changeset
387 local cb = spy.new(function (v)
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parents: 10922
diff changeset
388 result = v;
24ce9d380475 util.promise: Add support for arbitrary keys in all()/all_settled()
Matthew Wild <mwild1@gmail.com>
parents: 10922
diff changeset
389 end);
24ce9d380475 util.promise: Add support for arbitrary keys in all()/all_settled()
Matthew Wild <mwild1@gmail.com>
parents: 10922
diff changeset
390 p:next(cb);
24ce9d380475 util.promise: Add support for arbitrary keys in all()/all_settled()
Matthew Wild <mwild1@gmail.com>
parents: 10922
diff changeset
391 assert.spy(cb).was_called(0);
24ce9d380475 util.promise: Add support for arbitrary keys in all()/all_settled()
Matthew Wild <mwild1@gmail.com>
parents: 10922
diff changeset
392 r2("yep");
24ce9d380475 util.promise: Add support for arbitrary keys in all()/all_settled()
Matthew Wild <mwild1@gmail.com>
parents: 10922
diff changeset
393 assert.spy(cb).was_called(0);
24ce9d380475 util.promise: Add support for arbitrary keys in all()/all_settled()
Matthew Wild <mwild1@gmail.com>
parents: 10922
diff changeset
394 r1("nope");
24ce9d380475 util.promise: Add support for arbitrary keys in all()/all_settled()
Matthew Wild <mwild1@gmail.com>
parents: 10922
diff changeset
395 assert.spy(cb).was_called(1);
24ce9d380475 util.promise: Add support for arbitrary keys in all()/all_settled()
Matthew Wild <mwild1@gmail.com>
parents: 10922
diff changeset
396 assert.same({ [true] = "nope", [false] = "yep" }, result);
24ce9d380475 util.promise: Add support for arbitrary keys in all()/all_settled()
Matthew Wild <mwild1@gmail.com>
parents: 10922
diff changeset
397 end);
11485
7d42ed3a8a40 util.promise: all()/all_settled() pass through non-promise values
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parents: 11484
diff changeset
398 it("passes through non-promise values", function ()
7d42ed3a8a40 util.promise: all()/all_settled() pass through non-promise values
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parents: 11484
diff changeset
399 local r1;
7d42ed3a8a40 util.promise: all()/all_settled() pass through non-promise values
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parents: 11484
diff changeset
400 local p1 = promise.new(function (resolve) r1 = resolve end);
7d42ed3a8a40 util.promise: all()/all_settled() pass through non-promise values
Matthew Wild <mwild1@gmail.com>
parents: 11484
diff changeset
401 local p = promise.all({ [true] = p1, [false] = "yep" });
7d42ed3a8a40 util.promise: all()/all_settled() pass through non-promise values
Matthew Wild <mwild1@gmail.com>
parents: 11484
diff changeset
402
7d42ed3a8a40 util.promise: all()/all_settled() pass through non-promise values
Matthew Wild <mwild1@gmail.com>
parents: 11484
diff changeset
403 local result;
7d42ed3a8a40 util.promise: all()/all_settled() pass through non-promise values
Matthew Wild <mwild1@gmail.com>
parents: 11484
diff changeset
404 local cb = spy.new(function (v)
7d42ed3a8a40 util.promise: all()/all_settled() pass through non-promise values
Matthew Wild <mwild1@gmail.com>
parents: 11484
diff changeset
405 result = v;
7d42ed3a8a40 util.promise: all()/all_settled() pass through non-promise values
Matthew Wild <mwild1@gmail.com>
parents: 11484
diff changeset
406 end);
7d42ed3a8a40 util.promise: all()/all_settled() pass through non-promise values
Matthew Wild <mwild1@gmail.com>
parents: 11484
diff changeset
407 p:next(cb);
7d42ed3a8a40 util.promise: all()/all_settled() pass through non-promise values
Matthew Wild <mwild1@gmail.com>
parents: 11484
diff changeset
408 assert.spy(cb).was_called(0);
7d42ed3a8a40 util.promise: all()/all_settled() pass through non-promise values
Matthew Wild <mwild1@gmail.com>
parents: 11484
diff changeset
409 r1("nope");
7d42ed3a8a40 util.promise: all()/all_settled() pass through non-promise values
Matthew Wild <mwild1@gmail.com>
parents: 11484
diff changeset
410 assert.spy(cb).was_called(1);
7d42ed3a8a40 util.promise: all()/all_settled() pass through non-promise values
Matthew Wild <mwild1@gmail.com>
parents: 11484
diff changeset
411 assert.same({ [true] = "nope", [false] = "yep" }, result);
7d42ed3a8a40 util.promise: all()/all_settled() pass through non-promise values
Matthew Wild <mwild1@gmail.com>
parents: 11484
diff changeset
412 end);
9456
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
413 end);
10922
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
Matthew Wild <mwild1@gmail.com>
parents: 10297
diff changeset
414 describe("all_settled()", function ()
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
Matthew Wild <mwild1@gmail.com>
parents: 10297
diff changeset
415 it("works with fulfilled promises", function ()
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
Matthew Wild <mwild1@gmail.com>
parents: 10297
diff changeset
416 local p1, p2 = promise.resolve("yep"), promise.resolve("nope");
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
Matthew Wild <mwild1@gmail.com>
parents: 10297
diff changeset
417 local p = promise.all_settled({ p1, p2 });
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
Matthew Wild <mwild1@gmail.com>
parents: 10297
diff changeset
418 local result;
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
Matthew Wild <mwild1@gmail.com>
parents: 10297
diff changeset
419 p:next(function (v)
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
Matthew Wild <mwild1@gmail.com>
parents: 10297
diff changeset
420 result = v;
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
Matthew Wild <mwild1@gmail.com>
parents: 10297
diff changeset
421 end);
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
Matthew Wild <mwild1@gmail.com>
parents: 10297
diff changeset
422 assert.same({
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
Matthew Wild <mwild1@gmail.com>
parents: 10297
diff changeset
423 { status = "fulfilled", value = "yep" };
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
Matthew Wild <mwild1@gmail.com>
parents: 10297
diff changeset
424 { status = "fulfilled", value = "nope" };
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
Matthew Wild <mwild1@gmail.com>
parents: 10297
diff changeset
425 }, result);
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
Matthew Wild <mwild1@gmail.com>
parents: 10297
diff changeset
426 end);
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
Matthew Wild <mwild1@gmail.com>
parents: 10297
diff changeset
427 it("works with pending promises", function ()
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
Matthew Wild <mwild1@gmail.com>
parents: 10297
diff changeset
428 local r1, r2;
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
Matthew Wild <mwild1@gmail.com>
parents: 10297
diff changeset
429 local p1, p2 = promise.new(function (resolve) r1 = resolve end), promise.new(function (resolve) r2 = resolve end);
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
Matthew Wild <mwild1@gmail.com>
parents: 10297
diff changeset
430 local p = promise.all_settled({ p1, p2 });
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
Matthew Wild <mwild1@gmail.com>
parents: 10297
diff changeset
431
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
Matthew Wild <mwild1@gmail.com>
parents: 10297
diff changeset
432 local result;
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
Matthew Wild <mwild1@gmail.com>
parents: 10297
diff changeset
433 local cb = spy.new(function (v)
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
Matthew Wild <mwild1@gmail.com>
parents: 10297
diff changeset
434 result = v;
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
Matthew Wild <mwild1@gmail.com>
parents: 10297
diff changeset
435 end);
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
Matthew Wild <mwild1@gmail.com>
parents: 10297
diff changeset
436 p:next(cb);
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
Matthew Wild <mwild1@gmail.com>
parents: 10297
diff changeset
437 assert.spy(cb).was_called(0);
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
Matthew Wild <mwild1@gmail.com>
parents: 10297
diff changeset
438 r2("yep");
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
Matthew Wild <mwild1@gmail.com>
parents: 10297
diff changeset
439 assert.spy(cb).was_called(0);
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
Matthew Wild <mwild1@gmail.com>
parents: 10297
diff changeset
440 r1("nope");
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
Matthew Wild <mwild1@gmail.com>
parents: 10297
diff changeset
441 assert.spy(cb).was_called(1);
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
Matthew Wild <mwild1@gmail.com>
parents: 10297
diff changeset
442 assert.same({
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
Matthew Wild <mwild1@gmail.com>
parents: 10297
diff changeset
443 { status = "fulfilled", value = "nope" };
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
Matthew Wild <mwild1@gmail.com>
parents: 10297
diff changeset
444 { status = "fulfilled", value = "yep" };
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
Matthew Wild <mwild1@gmail.com>
parents: 10297
diff changeset
445 }, result);
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
Matthew Wild <mwild1@gmail.com>
parents: 10297
diff changeset
446 end);
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
Matthew Wild <mwild1@gmail.com>
parents: 10297
diff changeset
447 it("works when some promises reject", function ()
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
Matthew Wild <mwild1@gmail.com>
parents: 10297
diff changeset
448 local r1, r2;
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
Matthew Wild <mwild1@gmail.com>
parents: 10297
diff changeset
449 local p1, p2 = promise.new(function (resolve) r1 = resolve end), promise.new(function (_, reject) r2 = reject end);
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
Matthew Wild <mwild1@gmail.com>
parents: 10297
diff changeset
450 local p = promise.all_settled({ p1, p2 });
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
Matthew Wild <mwild1@gmail.com>
parents: 10297
diff changeset
451
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
Matthew Wild <mwild1@gmail.com>
parents: 10297
diff changeset
452 local result;
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
Matthew Wild <mwild1@gmail.com>
parents: 10297
diff changeset
453 local cb = spy.new(function (v)
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
Matthew Wild <mwild1@gmail.com>
parents: 10297
diff changeset
454 result = v;
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
Matthew Wild <mwild1@gmail.com>
parents: 10297
diff changeset
455 end);
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
Matthew Wild <mwild1@gmail.com>
parents: 10297
diff changeset
456 p:next(cb);
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
Matthew Wild <mwild1@gmail.com>
parents: 10297
diff changeset
457 assert.spy(cb).was_called(0);
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
Matthew Wild <mwild1@gmail.com>
parents: 10297
diff changeset
458 r2("this fails");
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
Matthew Wild <mwild1@gmail.com>
parents: 10297
diff changeset
459 assert.spy(cb).was_called(0);
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
Matthew Wild <mwild1@gmail.com>
parents: 10297
diff changeset
460 r1("this succeeds");
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
Matthew Wild <mwild1@gmail.com>
parents: 10297
diff changeset
461 assert.spy(cb).was_called(1);
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
Matthew Wild <mwild1@gmail.com>
parents: 10297
diff changeset
462 assert.same({
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
Matthew Wild <mwild1@gmail.com>
parents: 10297
diff changeset
463 { status = "fulfilled", value = "this succeeds" };
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
Matthew Wild <mwild1@gmail.com>
parents: 10297
diff changeset
464 { status = "rejected", reason = "this fails" };
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
Matthew Wild <mwild1@gmail.com>
parents: 10297
diff changeset
465 }, result);
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
Matthew Wild <mwild1@gmail.com>
parents: 10297
diff changeset
466 end);
12751
2639e0e1c378 util.promise: Add some missing test cases (found through mutation testing)
Matthew Wild <mwild1@gmail.com>
parents: 12749
diff changeset
467 it("works when all promises reject", function ()
2639e0e1c378 util.promise: Add some missing test cases (found through mutation testing)
Matthew Wild <mwild1@gmail.com>
parents: 12749
diff changeset
468 local r1, r2;
2639e0e1c378 util.promise: Add some missing test cases (found through mutation testing)
Matthew Wild <mwild1@gmail.com>
parents: 12749
diff changeset
469 local p1, p2 = promise.new(function (_, reject) r1 = reject end), promise.new(function (_, reject) r2 = reject end);
2639e0e1c378 util.promise: Add some missing test cases (found through mutation testing)
Matthew Wild <mwild1@gmail.com>
parents: 12749
diff changeset
470 local p = promise.all_settled({ p1, p2 });
2639e0e1c378 util.promise: Add some missing test cases (found through mutation testing)
Matthew Wild <mwild1@gmail.com>
parents: 12749
diff changeset
471
2639e0e1c378 util.promise: Add some missing test cases (found through mutation testing)
Matthew Wild <mwild1@gmail.com>
parents: 12749
diff changeset
472 local result;
2639e0e1c378 util.promise: Add some missing test cases (found through mutation testing)
Matthew Wild <mwild1@gmail.com>
parents: 12749
diff changeset
473 local cb = spy.new(function (v)
2639e0e1c378 util.promise: Add some missing test cases (found through mutation testing)
Matthew Wild <mwild1@gmail.com>
parents: 12749
diff changeset
474 result = v;
2639e0e1c378 util.promise: Add some missing test cases (found through mutation testing)
Matthew Wild <mwild1@gmail.com>
parents: 12749
diff changeset
475 end);
2639e0e1c378 util.promise: Add some missing test cases (found through mutation testing)
Matthew Wild <mwild1@gmail.com>
parents: 12749
diff changeset
476 p:next(cb);
2639e0e1c378 util.promise: Add some missing test cases (found through mutation testing)
Matthew Wild <mwild1@gmail.com>
parents: 12749
diff changeset
477 assert.spy(cb).was_called(0);
2639e0e1c378 util.promise: Add some missing test cases (found through mutation testing)
Matthew Wild <mwild1@gmail.com>
parents: 12749
diff changeset
478 r2("this fails");
2639e0e1c378 util.promise: Add some missing test cases (found through mutation testing)
Matthew Wild <mwild1@gmail.com>
parents: 12749
diff changeset
479 assert.spy(cb).was_called(0);
2639e0e1c378 util.promise: Add some missing test cases (found through mutation testing)
Matthew Wild <mwild1@gmail.com>
parents: 12749
diff changeset
480 r1("this fails too");
2639e0e1c378 util.promise: Add some missing test cases (found through mutation testing)
Matthew Wild <mwild1@gmail.com>
parents: 12749
diff changeset
481 assert.spy(cb).was_called(1);
2639e0e1c378 util.promise: Add some missing test cases (found through mutation testing)
Matthew Wild <mwild1@gmail.com>
parents: 12749
diff changeset
482 assert.same({
12752
9ef8f248635c util.promise: Fix field name in failing test (introduced in 2639e0e1c378)
Matthew Wild <mwild1@gmail.com>
parents: 12751
diff changeset
483 { status = "rejected", reason = "this fails too" };
12751
2639e0e1c378 util.promise: Add some missing test cases (found through mutation testing)
Matthew Wild <mwild1@gmail.com>
parents: 12749
diff changeset
484 { status = "rejected", reason = "this fails" };
2639e0e1c378 util.promise: Add some missing test cases (found through mutation testing)
Matthew Wild <mwild1@gmail.com>
parents: 12749
diff changeset
485 }, result);
2639e0e1c378 util.promise: Add some missing test cases (found through mutation testing)
Matthew Wild <mwild1@gmail.com>
parents: 12749
diff changeset
486 end);
11483
24ce9d380475 util.promise: Add support for arbitrary keys in all()/all_settled()
Matthew Wild <mwild1@gmail.com>
parents: 10922
diff changeset
487 it("works with non-numeric keys", function ()
24ce9d380475 util.promise: Add support for arbitrary keys in all()/all_settled()
Matthew Wild <mwild1@gmail.com>
parents: 10922
diff changeset
488 local r1, r2;
24ce9d380475 util.promise: Add support for arbitrary keys in all()/all_settled()
Matthew Wild <mwild1@gmail.com>
parents: 10922
diff changeset
489 local p1, p2 = promise.new(function (resolve) r1 = resolve end), promise.new(function (resolve) r2 = resolve end);
24ce9d380475 util.promise: Add support for arbitrary keys in all()/all_settled()
Matthew Wild <mwild1@gmail.com>
parents: 10922
diff changeset
490 local p = promise.all_settled({ foo = p1, bar = p2 });
24ce9d380475 util.promise: Add support for arbitrary keys in all()/all_settled()
Matthew Wild <mwild1@gmail.com>
parents: 10922
diff changeset
491
24ce9d380475 util.promise: Add support for arbitrary keys in all()/all_settled()
Matthew Wild <mwild1@gmail.com>
parents: 10922
diff changeset
492 local result;
24ce9d380475 util.promise: Add support for arbitrary keys in all()/all_settled()
Matthew Wild <mwild1@gmail.com>
parents: 10922
diff changeset
493 local cb = spy.new(function (v)
24ce9d380475 util.promise: Add support for arbitrary keys in all()/all_settled()
Matthew Wild <mwild1@gmail.com>
parents: 10922
diff changeset
494 result = v;
24ce9d380475 util.promise: Add support for arbitrary keys in all()/all_settled()
Matthew Wild <mwild1@gmail.com>
parents: 10922
diff changeset
495 end);
24ce9d380475 util.promise: Add support for arbitrary keys in all()/all_settled()
Matthew Wild <mwild1@gmail.com>
parents: 10922
diff changeset
496 p:next(cb);
24ce9d380475 util.promise: Add support for arbitrary keys in all()/all_settled()
Matthew Wild <mwild1@gmail.com>
parents: 10922
diff changeset
497 assert.spy(cb).was_called(0);
24ce9d380475 util.promise: Add support for arbitrary keys in all()/all_settled()
Matthew Wild <mwild1@gmail.com>
parents: 10922
diff changeset
498 r2("yep");
24ce9d380475 util.promise: Add support for arbitrary keys in all()/all_settled()
Matthew Wild <mwild1@gmail.com>
parents: 10922
diff changeset
499 assert.spy(cb).was_called(0);
24ce9d380475 util.promise: Add support for arbitrary keys in all()/all_settled()
Matthew Wild <mwild1@gmail.com>
parents: 10922
diff changeset
500 r1("nope");
24ce9d380475 util.promise: Add support for arbitrary keys in all()/all_settled()
Matthew Wild <mwild1@gmail.com>
parents: 10922
diff changeset
501 assert.spy(cb).was_called(1);
24ce9d380475 util.promise: Add support for arbitrary keys in all()/all_settled()
Matthew Wild <mwild1@gmail.com>
parents: 10922
diff changeset
502 assert.same({
24ce9d380475 util.promise: Add support for arbitrary keys in all()/all_settled()
Matthew Wild <mwild1@gmail.com>
parents: 10922
diff changeset
503 foo = { status = "fulfilled", value = "nope" };
24ce9d380475 util.promise: Add support for arbitrary keys in all()/all_settled()
Matthew Wild <mwild1@gmail.com>
parents: 10922
diff changeset
504 bar = { status = "fulfilled", value = "yep" };
24ce9d380475 util.promise: Add support for arbitrary keys in all()/all_settled()
Matthew Wild <mwild1@gmail.com>
parents: 10922
diff changeset
505 }, result);
24ce9d380475 util.promise: Add support for arbitrary keys in all()/all_settled()
Matthew Wild <mwild1@gmail.com>
parents: 10922
diff changeset
506 end);
11485
7d42ed3a8a40 util.promise: all()/all_settled() pass through non-promise values
Matthew Wild <mwild1@gmail.com>
parents: 11484
diff changeset
507 it("passes through non-promise values", function ()
7d42ed3a8a40 util.promise: all()/all_settled() pass through non-promise values
Matthew Wild <mwild1@gmail.com>
parents: 11484
diff changeset
508 local r1;
7d42ed3a8a40 util.promise: all()/all_settled() pass through non-promise values
Matthew Wild <mwild1@gmail.com>
parents: 11484
diff changeset
509 local p1 = promise.new(function (resolve) r1 = resolve end);
7d42ed3a8a40 util.promise: all()/all_settled() pass through non-promise values
Matthew Wild <mwild1@gmail.com>
parents: 11484
diff changeset
510 local p = promise.all_settled({ foo = p1, bar = "yep" });
7d42ed3a8a40 util.promise: all()/all_settled() pass through non-promise values
Matthew Wild <mwild1@gmail.com>
parents: 11484
diff changeset
511
7d42ed3a8a40 util.promise: all()/all_settled() pass through non-promise values
Matthew Wild <mwild1@gmail.com>
parents: 11484
diff changeset
512 local result;
7d42ed3a8a40 util.promise: all()/all_settled() pass through non-promise values
Matthew Wild <mwild1@gmail.com>
parents: 11484
diff changeset
513 local cb = spy.new(function (v)
7d42ed3a8a40 util.promise: all()/all_settled() pass through non-promise values
Matthew Wild <mwild1@gmail.com>
parents: 11484
diff changeset
514 result = v;
7d42ed3a8a40 util.promise: all()/all_settled() pass through non-promise values
Matthew Wild <mwild1@gmail.com>
parents: 11484
diff changeset
515 end);
7d42ed3a8a40 util.promise: all()/all_settled() pass through non-promise values
Matthew Wild <mwild1@gmail.com>
parents: 11484
diff changeset
516 p:next(cb);
7d42ed3a8a40 util.promise: all()/all_settled() pass through non-promise values
Matthew Wild <mwild1@gmail.com>
parents: 11484
diff changeset
517 assert.spy(cb).was_called(0);
7d42ed3a8a40 util.promise: all()/all_settled() pass through non-promise values
Matthew Wild <mwild1@gmail.com>
parents: 11484
diff changeset
518 r1("nope");
7d42ed3a8a40 util.promise: all()/all_settled() pass through non-promise values
Matthew Wild <mwild1@gmail.com>
parents: 11484
diff changeset
519 assert.spy(cb).was_called(1);
7d42ed3a8a40 util.promise: all()/all_settled() pass through non-promise values
Matthew Wild <mwild1@gmail.com>
parents: 11484
diff changeset
520 assert.same({
7d42ed3a8a40 util.promise: all()/all_settled() pass through non-promise values
Matthew Wild <mwild1@gmail.com>
parents: 11484
diff changeset
521 foo = { status = "fulfilled", value = "nope" };
7d42ed3a8a40 util.promise: all()/all_settled() pass through non-promise values
Matthew Wild <mwild1@gmail.com>
parents: 11484
diff changeset
522 bar = "yep";
7d42ed3a8a40 util.promise: all()/all_settled() pass through non-promise values
Matthew Wild <mwild1@gmail.com>
parents: 11484
diff changeset
523 }, result);
7d42ed3a8a40 util.promise: all()/all_settled() pass through non-promise values
Matthew Wild <mwild1@gmail.com>
parents: 11484
diff changeset
524 end);
10922
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
Matthew Wild <mwild1@gmail.com>
parents: 10297
diff changeset
525 end);
9456
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
526 describe("catch()", function ()
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
527 it("works", function ()
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
528 local result;
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
529 local p = promise.new(function (resolve)
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
530 error({ foo = true });
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
531 end);
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
532 local cb1 = spy.new(function (v)
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
533 result = v;
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
534 end);
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
535 assert.spy(cb1).was_called(0);
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
536 p:catch(cb1);
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
537 assert.spy(cb1).was_called(1);
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
538 assert.same({ foo = true }, result);
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
539 end);
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
540 end);
11484
a0120e935442 util.promise: Add join() convenience method
Matthew Wild <mwild1@gmail.com>
parents: 11483
diff changeset
541 describe("join()", function ()
a0120e935442 util.promise: Add join() convenience method
Matthew Wild <mwild1@gmail.com>
parents: 11483
diff changeset
542 it("works", function ()
a0120e935442 util.promise: Add join() convenience method
Matthew Wild <mwild1@gmail.com>
parents: 11483
diff changeset
543 local r1, r2;
a0120e935442 util.promise: Add join() convenience method
Matthew Wild <mwild1@gmail.com>
parents: 11483
diff changeset
544 local res1, res2;
a0120e935442 util.promise: Add join() convenience method
Matthew Wild <mwild1@gmail.com>
parents: 11483
diff changeset
545 local p1, p2 = promise.new(function (resolve) r1 = resolve end), promise.new(function (resolve) r2 = resolve end);
a0120e935442 util.promise: Add join() convenience method
Matthew Wild <mwild1@gmail.com>
parents: 11483
diff changeset
546
11486
78d843faaffc util.promise: Switch order of parameters to join()
Matthew Wild <mwild1@gmail.com>
parents: 11485
diff changeset
547 local p = promise.join(function (_res1, _res2)
11484
a0120e935442 util.promise: Add join() convenience method
Matthew Wild <mwild1@gmail.com>
parents: 11483
diff changeset
548 res1, res2 = _res1, _res2;
a0120e935442 util.promise: Add join() convenience method
Matthew Wild <mwild1@gmail.com>
parents: 11483
diff changeset
549 return promise.resolve("works");
11486
78d843faaffc util.promise: Switch order of parameters to join()
Matthew Wild <mwild1@gmail.com>
parents: 11485
diff changeset
550 end, p1, p2);
11484
a0120e935442 util.promise: Add join() convenience method
Matthew Wild <mwild1@gmail.com>
parents: 11483
diff changeset
551
a0120e935442 util.promise: Add join() convenience method
Matthew Wild <mwild1@gmail.com>
parents: 11483
diff changeset
552 local result;
a0120e935442 util.promise: Add join() convenience method
Matthew Wild <mwild1@gmail.com>
parents: 11483
diff changeset
553 local cb = spy.new(function (v)
a0120e935442 util.promise: Add join() convenience method
Matthew Wild <mwild1@gmail.com>
parents: 11483
diff changeset
554 result = v;
a0120e935442 util.promise: Add join() convenience method
Matthew Wild <mwild1@gmail.com>
parents: 11483
diff changeset
555 end);
a0120e935442 util.promise: Add join() convenience method
Matthew Wild <mwild1@gmail.com>
parents: 11483
diff changeset
556 p:next(cb);
a0120e935442 util.promise: Add join() convenience method
Matthew Wild <mwild1@gmail.com>
parents: 11483
diff changeset
557 assert.spy(cb).was_called(0);
a0120e935442 util.promise: Add join() convenience method
Matthew Wild <mwild1@gmail.com>
parents: 11483
diff changeset
558 r2("yep");
a0120e935442 util.promise: Add join() convenience method
Matthew Wild <mwild1@gmail.com>
parents: 11483
diff changeset
559 assert.spy(cb).was_called(0);
a0120e935442 util.promise: Add join() convenience method
Matthew Wild <mwild1@gmail.com>
parents: 11483
diff changeset
560 r1("nope");
a0120e935442 util.promise: Add join() convenience method
Matthew Wild <mwild1@gmail.com>
parents: 11483
diff changeset
561 assert.spy(cb).was_called(1);
a0120e935442 util.promise: Add join() convenience method
Matthew Wild <mwild1@gmail.com>
parents: 11483
diff changeset
562 assert.same("works", result);
a0120e935442 util.promise: Add join() convenience method
Matthew Wild <mwild1@gmail.com>
parents: 11483
diff changeset
563 assert.equals("nope", res1);
a0120e935442 util.promise: Add join() convenience method
Matthew Wild <mwild1@gmail.com>
parents: 11483
diff changeset
564 assert.equals("yep", res2);
a0120e935442 util.promise: Add join() convenience method
Matthew Wild <mwild1@gmail.com>
parents: 11483
diff changeset
565 end);
a0120e935442 util.promise: Add join() convenience method
Matthew Wild <mwild1@gmail.com>
parents: 11483
diff changeset
566 end);
9456
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
567 it("promises may be resolved by other promises", function ()
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
568 local r1, r2;
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
569 local p1, p2 = promise.new(function (resolve) r1 = resolve end), promise.new(function (resolve) r2 = resolve end);
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
570
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
571 local result;
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
572 local cb = spy.new(function (v)
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
573 result = v;
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
574 end);
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
575 p1:next(cb);
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
576 assert.spy(cb).was_called(0);
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
577
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
578 r1(p2);
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
579 assert.spy(cb).was_called(0);
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
580 r2("yep");
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
581 assert.spy(cb).was_called(1);
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
582 assert.equal("yep", result);
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
583 end);
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
584 describe("reject()", function ()
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
585 it("returns a rejected promise", function ()
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
586 local p = promise.reject("foo");
9457
d01cff2f7a26 util.promise tests: Fix luacheck warnings
Matthew Wild <mwild1@gmail.com>
parents: 9456
diff changeset
587 local cb = spy.new(function () end);
9510
8ef46d09386a util.promise: Fix promise.reject() to return a rejected promise, and fix buggy test for it
Matthew Wild <mwild1@gmail.com>
parents: 9457
diff changeset
588 p:catch(cb);
9456
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
589 assert.spy(cb).was_called(1);
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
590 assert.spy(cb).was_called_with("foo");
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
591 end);
9511
cb88d729e98d util.promise: Add additional test for promise.reject()
Matthew Wild <mwild1@gmail.com>
parents: 9510
diff changeset
592 it("returns a rejected promise and does not call on_fulfilled", function ()
cb88d729e98d util.promise: Add additional test for promise.reject()
Matthew Wild <mwild1@gmail.com>
parents: 9510
diff changeset
593 local p = promise.reject("foo");
cb88d729e98d util.promise: Add additional test for promise.reject()
Matthew Wild <mwild1@gmail.com>
parents: 9510
diff changeset
594 local cb = spy.new(function () end);
cb88d729e98d util.promise: Add additional test for promise.reject()
Matthew Wild <mwild1@gmail.com>
parents: 9510
diff changeset
595 p:next(cb);
cb88d729e98d util.promise: Add additional test for promise.reject()
Matthew Wild <mwild1@gmail.com>
parents: 9510
diff changeset
596 assert.spy(cb).was_called(0);
cb88d729e98d util.promise: Add additional test for promise.reject()
Matthew Wild <mwild1@gmail.com>
parents: 9510
diff changeset
597 end);
9456
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
598 end);
9514
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
599 describe("finally()", function ()
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
600 local p, p2, resolve, reject, on_finally;
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
601 before_each(function ()
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
602 p = promise.new(function (_resolve, _reject)
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
603 resolve, reject = _resolve, _reject;
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
604 end);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
605 on_finally = spy.new(function () end);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
606 p2 = p:finally(on_finally);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
607 end);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
608 it("runs when a promise is resolved", function ()
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
609 assert.spy(on_finally).was_called(0);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
610 resolve("foo");
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
611 assert.spy(on_finally).was_called(1);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
612 assert.spy(on_finally).was_not_called_with("foo");
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
613 end);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
614 it("runs when a promise is rejected", function ()
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
615 assert.spy(on_finally).was_called(0);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
616 reject("foo");
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
617 assert.spy(on_finally).was_called(1);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
618 assert.spy(on_finally).was_not_called_with("foo");
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
619 end);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
620 it("returns a promise that fulfills with the original value", function ()
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
621 local cb2 = spy.new(function () end);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
622 p2:next(cb2);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
623 assert.spy(on_finally).was_called(0);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
624 assert.spy(cb2).was_called(0);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
625 resolve("foo");
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
626 assert.spy(on_finally).was_called(1);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
627 assert.spy(cb2).was_called(1);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
628 assert.spy(on_finally).was_not_called_with("foo");
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
629 assert.spy(cb2).was_called_with("foo");
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
630 end);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
631 it("returns a promise that rejects with the original error", function ()
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
632 local on_finally_err = spy.new(function () end);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
633 local on_finally_ok = spy.new(function () end);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
634 p2:catch(on_finally_err);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
635 p2:next(on_finally_ok);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
636 assert.spy(on_finally).was_called(0);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
637 assert.spy(on_finally_err).was_called(0);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
638 reject("foo");
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
639 assert.spy(on_finally).was_called(1);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
640 -- Since the original promise was rejected, the finally promise should also be
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
641 assert.spy(on_finally_ok).was_called(0);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
642 assert.spy(on_finally_err).was_called(1);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
643 assert.spy(on_finally).was_not_called_with("foo");
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
644 assert.spy(on_finally_err).was_called_with("foo");
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
645 end);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
646 it("returns a promise that rejects with an uncaught error inside on_finally", function ()
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
647 p = promise.new(function (_resolve, _reject)
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
648 resolve, reject = _resolve, _reject;
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
649 end);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
650 local test_error = {};
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
651 on_finally = spy.new(function () error(test_error) end);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
652 p2 = p:finally(on_finally);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
653
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
654 local on_finally_err = spy.new(function () end);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
655 p2:catch(on_finally_err);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
656 assert.spy(on_finally).was_called(0);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
657 assert.spy(on_finally_err).was_called(0);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
658 reject("foo");
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
659 assert.spy(on_finally).was_called(1);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
660 assert.spy(on_finally_err).was_called(1);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
661 assert.spy(on_finally).was_not_called_with("foo");
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
662 assert.spy(on_finally).was_not_called_with(test_error);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
663 assert.spy(on_finally_err).was_called_with(test_error);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
664 end);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
665 end);
9517
b1c6ede17592 util.promise: Add promise.try()
Matthew Wild <mwild1@gmail.com>
parents: 9514
diff changeset
666 describe("try()", function ()
b1c6ede17592 util.promise: Add promise.try()
Matthew Wild <mwild1@gmail.com>
parents: 9514
diff changeset
667 it("works with functions that return a promise", function ()
b1c6ede17592 util.promise: Add promise.try()
Matthew Wild <mwild1@gmail.com>
parents: 9514
diff changeset
668 local resolve;
b1c6ede17592 util.promise: Add promise.try()
Matthew Wild <mwild1@gmail.com>
parents: 9514
diff changeset
669 local p = promise.try(function ()
b1c6ede17592 util.promise: Add promise.try()
Matthew Wild <mwild1@gmail.com>
parents: 9514
diff changeset
670 return promise.new(function (_resolve)
b1c6ede17592 util.promise: Add promise.try()
Matthew Wild <mwild1@gmail.com>
parents: 9514
diff changeset
671 resolve = _resolve;
b1c6ede17592 util.promise: Add promise.try()
Matthew Wild <mwild1@gmail.com>
parents: 9514
diff changeset
672 end);
b1c6ede17592 util.promise: Add promise.try()
Matthew Wild <mwild1@gmail.com>
parents: 9514
diff changeset
673 end);
b1c6ede17592 util.promise: Add promise.try()
Matthew Wild <mwild1@gmail.com>
parents: 9514
diff changeset
674 assert.is_function(resolve);
b1c6ede17592 util.promise: Add promise.try()
Matthew Wild <mwild1@gmail.com>
parents: 9514
diff changeset
675 local on_resolved = spy.new(function () end);
b1c6ede17592 util.promise: Add promise.try()
Matthew Wild <mwild1@gmail.com>
parents: 9514
diff changeset
676 p:next(on_resolved);
b1c6ede17592 util.promise: Add promise.try()
Matthew Wild <mwild1@gmail.com>
parents: 9514
diff changeset
677 assert.spy(on_resolved).was_not_called();
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678 resolve("foo");
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679 assert.spy(on_resolved).was_called_with("foo");
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680 end);
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parents: 9514
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681
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682 it("works with functions that return a value", function ()
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683 local p = promise.try(function ()
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684 return "foo";
b1c6ede17592 util.promise: Add promise.try()
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685 end);
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parents: 9514
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686 local on_resolved = spy.new(function () end);
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687 p:next(on_resolved);
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688 assert.spy(on_resolved).was_called_with("foo");
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689 end);
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parents: 9514
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690
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parents: 9514
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691 it("works with functions that return a promise that rejects", function ()
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692 local reject;
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parents: 9514
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693 local p = promise.try(function ()
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parents: 9514
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694 return promise.new(function (_, _reject)
b1c6ede17592 util.promise: Add promise.try()
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parents: 9514
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695 reject = _reject;
b1c6ede17592 util.promise: Add promise.try()
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696 end);
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697 end);
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698 assert.is_function(reject);
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parents: 9514
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699 local on_rejected = spy.new(function () end);
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700 p:catch(on_rejected);
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701 assert.spy(on_rejected).was_not_called();
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702 reject("foo");
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Matthew Wild <mwild1@gmail.com>
parents: 9514
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703 assert.spy(on_rejected).was_called_with("foo");
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Matthew Wild <mwild1@gmail.com>
parents: 9514
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704 end);
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parents: 9514
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705
b1c6ede17592 util.promise: Add promise.try()
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parents: 9514
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706 it("works with functions that throw errors", function ()
b1c6ede17592 util.promise: Add promise.try()
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707 local test_error = {};
b1c6ede17592 util.promise: Add promise.try()
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708 local p = promise.try(function ()
b1c6ede17592 util.promise: Add promise.try()
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709 error(test_error);
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Matthew Wild <mwild1@gmail.com>
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710 end);
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Matthew Wild <mwild1@gmail.com>
parents: 9514
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711 local on_rejected = spy.new(function () end);
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Matthew Wild <mwild1@gmail.com>
parents: 9514
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712 p:catch(on_rejected);
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Matthew Wild <mwild1@gmail.com>
parents: 9514
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713 assert.spy(on_rejected).was_called(1);
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Matthew Wild <mwild1@gmail.com>
parents: 9514
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714 assert.spy(on_rejected).was_called_with(test_error);
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Matthew Wild <mwild1@gmail.com>
parents: 9514
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715 end);
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parents: 9514
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716 end);
11947
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parents: 11727
diff changeset
717 describe("set_nexttick()", function ()
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718 it("works", function ()
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719 local next_tick = spy.new(function (f)
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720 f();
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721 end)
11951
6d9e3f541830 util.promise: Fix test
Kim Alvefur <zash@zash.se>
parents: 11947
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722 local cb = spy.new(function () end);
11947
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723 promise.set_nexttick(next_tick);
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Kim Alvefur <zash@zash.se>
parents: 11727
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724 promise.new(function (y, _)
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725 y("okay");
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Kim Alvefur <zash@zash.se>
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726 end):next(cb);
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Kim Alvefur <zash@zash.se>
parents: 11727
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727 assert.spy(next_tick).was.called();
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Kim Alvefur <zash@zash.se>
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728 assert.spy(cb).was.called_with("okay");
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Kim Alvefur <zash@zash.se>
parents: 11727
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729 end);
073e53b72792 util.promise: Support delayed promise execution
Kim Alvefur <zash@zash.se>
parents: 11727
diff changeset
730 end)
9456
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
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731 end);