prosody
a5050e21ab08
spec/util_promise_spec.lua

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spec/util_promise_spec.lua @ 11455:a5050e21ab08

util.datamapper: Separate extraction of xml from coercion to target type Now it gets the text, attribute or name first, then turns it into whatever the schema wants. This should be easier to further factor out into preparation for array support.
author Kim Alvefur <zash@zash.se>
date Sun, 14 Mar 2021 03:06:37 +0100
parent 10922:7d3dbb9eb3eb
child 11483:24ce9d380475
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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("notifies immediately for fulfilled promises", function ()
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11 local p = promise.new(function (resolve)
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12 resolve("foo");
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13 end);
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14 local cb = spy.new(function (v)
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15 assert.equal("foo", v);
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16 end);
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17 p:next(cb);
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18 assert.spy(cb).was_called(1);
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19 end);
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20 it("notifies on fulfilment of pending promises", function ()
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21 local r;
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22 local p = promise.new(function (resolve)
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23 r = resolve;
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24 end);
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25 local cb = spy.new(function (v)
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26 assert.equal("foo", v);
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27 end);
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28 p:next(cb);
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29 assert.spy(cb).was_called(0);
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30 r("foo");
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31 assert.spy(cb).was_called(1);
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32 end);
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33 it("allows chaining :next() calls", function ()
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34 local r;
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35 local result;
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36 local p = promise.new(function (resolve)
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37 r = resolve;
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38 end);
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39 local cb1 = spy.new(function (v)
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40 assert.equal("foo", v);
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41 return "bar";
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42 end);
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43 local cb2 = spy.new(function (v)
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44 assert.equal("bar", v);
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45 result = v;
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46 end);
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47 p:next(cb1):next(cb2);
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48 assert.spy(cb1).was_called(0);
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49 assert.spy(cb2).was_called(0);
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50 r("foo");
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51 assert.spy(cb1).was_called(1);
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52 assert.spy(cb2).was_called(1);
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53 assert.equal("bar", result);
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54 end);
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55 it("supports multiple :next() calls on the same promise", function ()
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56 local r;
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57 local result;
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58 local p = promise.new(function (resolve)
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59 r = resolve;
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60 end);
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61 local cb1 = spy.new(function (v)
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62 assert.equal("foo", v);
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63 result = v;
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64 end);
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65 local cb2 = spy.new(function (v)
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66 assert.equal("foo", v);
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67 result = v;
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68 end);
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69 p:next(cb1);
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70 p:next(cb2);
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71 assert.spy(cb1).was_called(0);
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72 assert.spy(cb2).was_called(0);
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73 r("foo");
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74 assert.spy(cb1).was_called(1);
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75 assert.spy(cb2).was_called(1);
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76 assert.equal("foo", result);
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77 end);
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78 it("automatically rejects on error", function ()
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79 local r;
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80 local p = promise.new(function (resolve)
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81 r = resolve;
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82 error("oh no");
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83 end);
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84 local cb = spy.new(function () end);
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85 local err_cb = spy.new(function (v)
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86 assert.equal("oh no", v);
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87 end);
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88 p:next(cb, err_cb);
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89 assert.spy(cb).was_called(0);
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90 assert.spy(err_cb).was_called(1);
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91 r("foo");
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92 assert.spy(cb).was_called(0);
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93 assert.spy(err_cb).was_called(1);
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94 end);
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95 it("supports reject()", function ()
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96 local r, result;
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97 local p = promise.new(function (resolve, reject)
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98 r = reject;
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99 end);
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100 local cb = spy.new(function () end);
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101 local err_cb = spy.new(function (v)
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102 result = v;
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103 assert.equal("oh doh", v);
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104 end);
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105 p:next(cb, err_cb);
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106 assert.spy(cb).was_called(0);
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107 assert.spy(err_cb).was_called(0);
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108 r("oh doh");
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109 assert.spy(cb).was_called(0);
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110 assert.spy(err_cb).was_called(1);
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111 assert.equal("oh doh", result);
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112 end);
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113 it("supports chaining of rejected promises", function ()
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114 local r, result;
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115 local p = promise.new(function (resolve, reject)
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116 r = reject;
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117 end);
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118 local cb = spy.new(function () end);
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119 local err_cb = spy.new(function (v)
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120 result = v;
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121 assert.equal("oh doh", v);
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122 return "ok"
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123 end);
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124 local cb2 = spy.new(function (v)
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125 result = v;
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126 end);
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127 local err_cb2 = spy.new(function () end);
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128 p:next(cb, err_cb):next(cb2, err_cb2)
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129 assert.spy(cb).was_called(0);
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130 assert.spy(err_cb).was_called(0);
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131 assert.spy(cb2).was_called(0);
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132 assert.spy(err_cb2).was_called(0);
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133 r("oh doh");
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134 assert.spy(cb).was_called(0);
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135 assert.spy(err_cb).was_called(1);
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136 assert.spy(cb2).was_called(1);
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137 assert.spy(err_cb2).was_called(0);
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138 assert.equal("ok", result);
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139 end);
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140
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141 it("propagates errors down the chain, even when some handlers are not provided", function ()
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142 local r, result;
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143 local test_error = {};
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144 local p = promise.new(function (resolve, reject)
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145 r = reject;
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146 end);
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147 local cb = spy.new(function () end);
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148 local err_cb = spy.new(function (e) result = e end);
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149 local p2 = p:next(function () error(test_error) end);
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150 local p3 = p2:next(cb)
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151 p3:catch(err_cb);
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152 assert.spy(cb).was_called(0);
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153 assert.spy(err_cb).was_called(0);
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154 r("oh doh");
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155 assert.spy(cb).was_called(0);
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156 assert.spy(err_cb).was_called(1);
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157 assert.spy(err_cb).was_called_with("oh doh");
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158 assert.equal("oh doh", result);
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159 end);
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160
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161 it("propagates values down the chain, even when some handlers are not provided", function ()
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162 local r;
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163 local p = promise.new(function (resolve, reject)
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164 r = resolve;
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165 end);
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166 local cb = spy.new(function () end);
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167 local err_cb = spy.new(function () end);
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168 local p2 = p:next(function (v) return v; end);
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169 local p3 = p2:catch(err_cb)
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170 p3:next(cb);
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171 assert.spy(cb).was_called(0);
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172 assert.spy(err_cb).was_called(0);
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173 r(1337);
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174 assert.spy(cb).was_called(1);
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175 assert.spy(cb).was_called_with(1337);
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176 assert.spy(err_cb).was_called(0);
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177 end);
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178
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179 it("fulfilled promises do not call error handlers and do propagate value", function ()
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180 local p = promise.resolve("foo");
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181 local cb = spy.new(function () end);
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182 local p2 = p:catch(cb);
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183 assert.spy(cb).was_called(0);
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184
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185 local cb2 = spy.new(function () end);
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186 p2:catch(cb2);
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187 assert.spy(cb2).was_called(0);
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188 end);
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189
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190 it("rejected promises do not call fulfilled handlers and do propagate reason", function ()
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191 local p = promise.reject("foo");
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192 local cb = spy.new(function () end);
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193 local p2 = p:next(cb);
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194 assert.spy(cb).was_called(0);
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195
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196 local cb2 = spy.new(function () end);
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197 local cb2_err = spy.new(function () end);
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198 p2:next(cb2, cb2_err);
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199 assert.spy(cb2).was_called(0);
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200 assert.spy(cb2_err).was_called(1);
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201 assert.spy(cb2_err).was_called_with("foo");
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202 end);
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203
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204 describe("allows callbacks to return", function ()
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205 it("pending promises", function ()
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206 local r;
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207 local p = promise.resolve()
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208 local cb = spy.new(function ()
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209 return promise.new(function (resolve)
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210 r = resolve;
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211 end);
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212 end);
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213 local cb2 = spy.new(function () end);
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214 p:next(cb):next(cb2);
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215 assert.spy(cb).was_called(1);
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216 assert.spy(cb2).was_called(0);
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217 r("hello");
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218 assert.spy(cb).was_called(1);
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219 assert.spy(cb2).was_called(1);
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220 assert.spy(cb2).was_called_with("hello");
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221 end);
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222
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223 it("resolved promises", function ()
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224 local p = promise.resolve()
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225 local cb = spy.new(function ()
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226 return promise.resolve("hello");
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227 end);
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228 local cb2 = spy.new(function () end);
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229 p:next(cb):next(cb2);
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230 assert.spy(cb).was_called(1);
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231 assert.spy(cb2).was_called(1);
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232 assert.spy(cb2).was_called_with("hello");
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233 end);
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234
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235 it("rejected promises", function ()
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236 local p = promise.resolve()
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237 local cb = spy.new(function ()
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238 return promise.reject("hello");
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239 end);
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240 local cb2 = spy.new(function ()
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241 return promise.reject("goodbye");
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242 end);
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243 local cb3 = spy.new(function () end);
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244 p:next(cb):catch(cb2):catch(cb3);
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245 assert.spy(cb).was_called(1);
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246 assert.spy(cb2).was_called(1);
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247 assert.spy(cb2).was_called_with("hello");
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248 assert.spy(cb3).was_called(1);
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249 assert.spy(cb3).was_called_with("goodbye");
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250 end);
10297
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251
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252 it("ordinary values", function ()
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253 local p = promise.resolve()
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254 local cb = spy.new(function ()
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255 return "hello"
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256 end);
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257 local cb2 = spy.new(function () end);
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258 p:next(cb):next(cb2);
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259 assert.spy(cb).was_called(1);
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260 assert.spy(cb2).was_called(1);
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261 assert.spy(cb2).was_called_with("hello");
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262 end);
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263
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264 it("nil", function ()
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265 local p = promise.resolve()
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266 local cb = spy.new(function ()
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267 return
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268 end);
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269 local cb2 = spy.new(function () end);
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270 p:next(cb):next(cb2);
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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(nil);
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274 end);
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275 end);
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276
9456
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277 describe("race()", function ()
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278 it("works with fulfilled promises", function ()
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279 local p1, p2 = promise.resolve("yep"), promise.resolve("nope");
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280 local p = promise.race({ p1, p2 });
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281 local result;
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282 p:next(function (v)
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283 result = v;
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284 end);
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285 assert.equal("yep", result);
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286 end);
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287 it("works with pending promises", function ()
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288 local r1, r2;
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289 local p1, p2 = promise.new(function (resolve) r1 = resolve end), promise.new(function (resolve) r2 = resolve end);
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290 local p = promise.race({ p1, p2 });
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291
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292 local result;
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293 local cb = spy.new(function (v)
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294 result = v;
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295 end);
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296 p:next(cb);
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297 assert.spy(cb).was_called(0);
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298 r2("yep");
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299 r1("nope");
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300 assert.spy(cb).was_called(1);
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301 assert.equal("yep", result);
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302 end);
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303 end);
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304 describe("all()", function ()
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305 it("works with fulfilled promises", function ()
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306 local p1, p2 = promise.resolve("yep"), promise.resolve("nope");
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307 local p = promise.all({ p1, p2 });
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308 local result;
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309 p:next(function (v)
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310 result = v;
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311 end);
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312 assert.same({ "yep", "nope" }, result);
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313 end);
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314 it("works with pending promises", function ()
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315 local r1, r2;
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316 local p1, p2 = promise.new(function (resolve) r1 = resolve end), promise.new(function (resolve) r2 = resolve end);
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317 local p = promise.all({ p1, p2 });
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318
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319 local result;
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320 local cb = spy.new(function (v)
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321 result = v;
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322 end);
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323 p:next(cb);
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324 assert.spy(cb).was_called(0);
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325 r2("yep");
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326 assert.spy(cb).was_called(0);
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327 r1("nope");
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328 assert.spy(cb).was_called(1);
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329 assert.same({ "nope", "yep" }, result);
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330 end);
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331 it("rejects if any promise rejects", function ()
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332 local r1, r2;
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333 local p1 = promise.new(function (resolve, reject) r1 = reject end);
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334 local p2 = promise.new(function (resolve, reject) r2 = reject end);
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335 local p = promise.all({ p1, p2 });
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336
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337 local result;
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338 local cb = spy.new(function (v)
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339 result = v;
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340 end);
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341 local cb_err = spy.new(function (v)
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342 result = v;
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343 end);
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344 p:next(cb, cb_err);
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345 assert.spy(cb).was_called(0);
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346 assert.spy(cb_err).was_called(0);
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347 r2("fail");
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348 assert.spy(cb).was_called(0);
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349 assert.spy(cb_err).was_called(1);
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350 r1("nope");
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351 assert.spy(cb).was_called(0);
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352 assert.spy(cb_err).was_called(1);
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353 assert.equal("fail", result);
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354 end);
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355 end);
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356 describe("all_settled()", function ()
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357 it("works with fulfilled promises", function ()
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358 local p1, p2 = promise.resolve("yep"), promise.resolve("nope");
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359 local p = promise.all_settled({ p1, p2 });
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360 local result;
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361 p:next(function (v)
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362 result = v;
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363 end);
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
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parents: 10297
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364 assert.same({
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parents: 10297
diff changeset
365 { status = "fulfilled", value = "yep" };
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diff changeset
366 { status = "fulfilled", value = "nope" };
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parents: 10297
diff changeset
367 }, result);
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parents: 10297
diff changeset
368 end);
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parents: 10297
diff changeset
369 it("works with pending promises", function ()
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370 local r1, r2;
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371 local p1, p2 = promise.new(function (resolve) r1 = resolve end), promise.new(function (resolve) r2 = resolve end);
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372 local p = promise.all_settled({ p1, p2 });
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diff changeset
373
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374 local result;
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parents: 10297
diff changeset
375 local cb = spy.new(function (v)
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376 result = v;
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parents: 10297
diff changeset
377 end);
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
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parents: 10297
diff changeset
378 p:next(cb);
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parents: 10297
diff changeset
379 assert.spy(cb).was_called(0);
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parents: 10297
diff changeset
380 r2("yep");
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parents: 10297
diff changeset
381 assert.spy(cb).was_called(0);
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parents: 10297
diff changeset
382 r1("nope");
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parents: 10297
diff changeset
383 assert.spy(cb).was_called(1);
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parents: 10297
diff changeset
384 assert.same({
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
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parents: 10297
diff changeset
385 { status = "fulfilled", value = "nope" };
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
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parents: 10297
diff changeset
386 { status = "fulfilled", value = "yep" };
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
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parents: 10297
diff changeset
387 }, result);
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
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parents: 10297
diff changeset
388 end);
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
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parents: 10297
diff changeset
389 it("works when some promises reject", function ()
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parents: 10297
diff changeset
390 local r1, r2;
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parents: 10297
diff changeset
391 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
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parents: 10297
diff changeset
392 local p = promise.all_settled({ p1, p2 });
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
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parents: 10297
diff changeset
393
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
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parents: 10297
diff changeset
394 local result;
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parents: 10297
diff changeset
395 local cb = spy.new(function (v)
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396 result = v;
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
Matthew Wild <mwild1@gmail.com>
parents: 10297
diff changeset
397 end);
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
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parents: 10297
diff changeset
398 p:next(cb);
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
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parents: 10297
diff changeset
399 assert.spy(cb).was_called(0);
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
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parents: 10297
diff changeset
400 r2("this fails");
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
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parents: 10297
diff changeset
401 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
402 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
403 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
404 assert.same({
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
Matthew Wild <mwild1@gmail.com>
parents: 10297
diff changeset
405 { 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
406 { 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
407 }, result);
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
Matthew Wild <mwild1@gmail.com>
parents: 10297
diff changeset
408 end);
7d3dbb9eb3eb util.promise: Add all_settled, which follows semantics of allSettled from ES2020
Matthew Wild <mwild1@gmail.com>
parents: 10297
diff changeset
409 end);
9456
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
410 describe("catch()", function ()
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
411 it("works", function ()
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
412 local result;
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
413 local p = promise.new(function (resolve)
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
414 error({ foo = true });
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
415 end);
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
416 local cb1 = spy.new(function (v)
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
417 result = v;
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
418 end);
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
419 assert.spy(cb1).was_called(0);
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
420 p:catch(cb1);
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
421 assert.spy(cb1).was_called(1);
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
422 assert.same({ foo = true }, result);
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
423 end);
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
424 end);
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
425 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
426 local r1, r2;
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
427 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
428
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
429 local result;
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
430 local cb = spy.new(function (v)
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
431 result = v;
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
432 end);
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
433 p1:next(cb);
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
434 assert.spy(cb).was_called(0);
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
435
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
436 r1(p2);
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
437 assert.spy(cb).was_called(0);
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
438 r2("yep");
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
439 assert.spy(cb).was_called(1);
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
440 assert.equal("yep", result);
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
441 end);
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
442 describe("reject()", function ()
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
443 it("returns a rejected promise", function ()
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
444 local p = promise.reject("foo");
9457
d01cff2f7a26 util.promise tests: Fix luacheck warnings
Matthew Wild <mwild1@gmail.com>
parents: 9456
diff changeset
445 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
446 p:catch(cb);
9456
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
447 assert.spy(cb).was_called(1);
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
448 assert.spy(cb).was_called_with("foo");
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
449 end);
9511
cb88d729e98d util.promise: Add additional test for promise.reject()
Matthew Wild <mwild1@gmail.com>
parents: 9510
diff changeset
450 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
451 local p = promise.reject("foo");
cb88d729e98d util.promise: Add additional test for promise.reject()
Matthew Wild <mwild1@gmail.com>
parents: 9510
diff changeset
452 local cb = spy.new(function () end);
cb88d729e98d util.promise: Add additional test for promise.reject()
Matthew Wild <mwild1@gmail.com>
parents: 9510
diff changeset
453 p:next(cb);
cb88d729e98d util.promise: Add additional test for promise.reject()
Matthew Wild <mwild1@gmail.com>
parents: 9510
diff changeset
454 assert.spy(cb).was_called(0);
cb88d729e98d util.promise: Add additional test for promise.reject()
Matthew Wild <mwild1@gmail.com>
parents: 9510
diff changeset
455 end);
9456
d54a0e129af8 util.promise: ES6-like API for promises
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
456 end);
9514
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
457 describe("finally()", function ()
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
458 local p, p2, resolve, reject, on_finally;
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
459 before_each(function ()
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
460 p = promise.new(function (_resolve, _reject)
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
461 resolve, reject = _resolve, _reject;
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
462 end);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
463 on_finally = spy.new(function () end);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
464 p2 = p:finally(on_finally);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
465 end);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
466 it("runs when a promise is resolved", function ()
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
467 assert.spy(on_finally).was_called(0);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
468 resolve("foo");
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
469 assert.spy(on_finally).was_called(1);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
470 assert.spy(on_finally).was_not_called_with("foo");
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
471 end);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
472 it("runs when a promise is rejected", function ()
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
473 assert.spy(on_finally).was_called(0);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
474 reject("foo");
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
475 assert.spy(on_finally).was_called(1);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
476 assert.spy(on_finally).was_not_called_with("foo");
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
477 end);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
478 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
479 local cb2 = spy.new(function () end);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
480 p2:next(cb2);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
481 assert.spy(on_finally).was_called(0);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
482 assert.spy(cb2).was_called(0);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
483 resolve("foo");
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
484 assert.spy(on_finally).was_called(1);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
485 assert.spy(cb2).was_called(1);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
486 assert.spy(on_finally).was_not_called_with("foo");
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
487 assert.spy(cb2).was_called_with("foo");
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
488 end);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
489 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
490 local on_finally_err = spy.new(function () end);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
491 local on_finally_ok = spy.new(function () end);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
492 p2:catch(on_finally_err);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
493 p2:next(on_finally_ok);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
494 assert.spy(on_finally).was_called(0);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
495 assert.spy(on_finally_err).was_called(0);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
496 reject("foo");
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
497 assert.spy(on_finally).was_called(1);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
498 -- 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
499 assert.spy(on_finally_ok).was_called(0);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
500 assert.spy(on_finally_err).was_called(1);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
501 assert.spy(on_finally).was_not_called_with("foo");
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
502 assert.spy(on_finally_err).was_called_with("foo");
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
503 end);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
504 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
505 p = promise.new(function (_resolve, _reject)
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
506 resolve, reject = _resolve, _reject;
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
507 end);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
508 local test_error = {};
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
509 on_finally = spy.new(function () error(test_error) end);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
510 p2 = p:finally(on_finally);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
511
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
512 local on_finally_err = spy.new(function () end);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
513 p2:catch(on_finally_err);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
514 assert.spy(on_finally).was_called(0);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
515 assert.spy(on_finally_err).was_called(0);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
516 reject("foo");
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
517 assert.spy(on_finally).was_called(1);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
518 assert.spy(on_finally_err).was_called(1);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
519 assert.spy(on_finally).was_not_called_with("foo");
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
520 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
521 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
522 end);
9db707a86a25 util.promise: Add promise:finally()
Matthew Wild <mwild1@gmail.com>
parents: 9511
diff changeset
523 end);
9517
b1c6ede17592 util.promise: Add promise.try()
Matthew Wild <mwild1@gmail.com>
parents: 9514
diff changeset
524 describe("try()", function ()
b1c6ede17592 util.promise: Add promise.try()
Matthew Wild <mwild1@gmail.com>
parents: 9514
diff changeset
525 it("works with functions that return a promise", function ()
b1c6ede17592 util.promise: Add promise.try()
Matthew Wild <mwild1@gmail.com>
parents: 9514
diff changeset
526 local resolve;
b1c6ede17592 util.promise: Add promise.try()
Matthew Wild <mwild1@gmail.com>
parents: 9514
diff changeset
527 local p = promise.try(function ()
b1c6ede17592 util.promise: Add promise.try()
Matthew Wild <mwild1@gmail.com>
parents: 9514
diff changeset
528 return promise.new(function (_resolve)
b1c6ede17592 util.promise: Add promise.try()
Matthew Wild <mwild1@gmail.com>
parents: 9514
diff changeset
529 resolve = _resolve;
b1c6ede17592 util.promise: Add promise.try()
Matthew Wild <mwild1@gmail.com>
parents: 9514
diff changeset
530 end);
b1c6ede17592 util.promise: Add promise.try()
Matthew Wild <mwild1@gmail.com>
parents: 9514
diff changeset
531 end);
b1c6ede17592 util.promise: Add promise.try()
Matthew Wild <mwild1@gmail.com>
parents: 9514
diff changeset
532 assert.is_function(resolve);
b1c6ede17592 util.promise: Add promise.try()
Matthew Wild <mwild1@gmail.com>
parents: 9514
diff changeset
533 local on_resolved = spy.new(function () end);
b1c6ede17592 util.promise: Add promise.try()
Matthew Wild <mwild1@gmail.com>
parents: 9514
diff changeset
534 p:next(on_resolved);
b1c6ede17592 util.promise: Add promise.try()
Matthew Wild <mwild1@gmail.com>
parents: 9514
diff changeset
535 assert.spy(on_resolved).was_not_called();
b1c6ede17592 util.promise: Add promise.try()
Matthew Wild <mwild1@gmail.com>
parents: 9514
diff changeset
536 resolve("foo");
b1c6ede17592 util.promise: Add promise.try()
Matthew Wild <mwild1@gmail.com>
parents: 9514
diff changeset
537 assert.spy(on_resolved).was_called_with("foo");
b1c6ede17592 util.promise: Add promise.try()
Matthew Wild <mwild1@gmail.com>
parents: 9514
diff changeset
538 end);
b1c6ede17592 util.promise: Add promise.try()
Matthew Wild <mwild1@gmail.com>
parents: 9514
diff changeset
539
b1c6ede17592 util.promise: Add promise.try()
Matthew Wild <mwild1@gmail.com>
parents: 9514
diff changeset
540 it("works with functions that return a value", function ()
b1c6ede17592 util.promise: Add promise.try()
Matthew Wild <mwild1@gmail.com>
parents: 9514
diff changeset
541 local p = promise.try(function ()
b1c6ede17592 util.promise: Add promise.try()
Matthew Wild <mwild1@gmail.com>
parents: 9514
diff changeset
542 return "foo";
b1c6ede17592 util.promise: Add promise.try()
Matthew Wild <mwild1@gmail.com>
parents: 9514
diff changeset
543 end);
b1c6ede17592 util.promise: Add promise.try()
Matthew Wild <mwild1@gmail.com>
parents: 9514
diff changeset
544 local on_resolved = spy.new(function () end);
b1c6ede17592 util.promise: Add promise.try()
Matthew Wild <mwild1@gmail.com>
parents: 9514
diff changeset
545 p:next(on_resolved);
b1c6ede17592 util.promise: Add promise.try()
Matthew Wild <mwild1@gmail.com>
parents: 9514
diff changeset
546 assert.spy(on_resolved).was_called_with("foo");
b1c6ede17592 util.promise: Add promise.try()
Matthew Wild <mwild1@gmail.com>
parents: 9514
diff changeset
547 end);
b1c6ede17592 util.promise: Add promise.try()
Matthew Wild <mwild1@gmail.com>
parents: 9514
diff changeset
548
b1c6ede17592 util.promise: Add promise.try()
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549 it("works with functions that return a promise that rejects", function ()
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550 local reject;
b1c6ede17592 util.promise: Add promise.try()
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551 local p = promise.try(function ()
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552 return promise.new(function (_, _reject)
b1c6ede17592 util.promise: Add promise.try()
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553 reject = _reject;
b1c6ede17592 util.promise: Add promise.try()
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554 end);
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555 end);
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556 assert.is_function(reject);
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557 local on_rejected = spy.new(function () end);
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558 p:catch(on_rejected);
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559 assert.spy(on_rejected).was_not_called();
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560 reject("foo");
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561 assert.spy(on_rejected).was_called_with("foo");
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562 end);
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parents: 9514
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563
b1c6ede17592 util.promise: Add promise.try()
Matthew Wild <mwild1@gmail.com>
parents: 9514
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564 it("works with functions that throw errors", function ()
b1c6ede17592 util.promise: Add promise.try()
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565 local test_error = {};
b1c6ede17592 util.promise: Add promise.try()
Matthew Wild <mwild1@gmail.com>
parents: 9514
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566 local p = promise.try(function ()
b1c6ede17592 util.promise: Add promise.try()
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parents: 9514
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567 error(test_error);
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568 end);
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parents: 9514
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569 local on_rejected = spy.new(function () end);
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parents: 9514
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570 p:catch(on_rejected);
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571 assert.spy(on_rejected).was_called(1);
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parents: 9514
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572 assert.spy(on_rejected).was_called_with(test_error);
b1c6ede17592 util.promise: Add promise.try()
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parents: 9514
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573 end);
b1c6ede17592 util.promise: Add promise.try()
Matthew Wild <mwild1@gmail.com>
parents: 9514
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574 end);
9456
d54a0e129af8 util.promise: ES6-like API for promises
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575 end);