Annotate

spec/util_array_spec.lua @ 10356:0a2d7efca039

util.pubsub, pubsub.lib and tests: Add text to precondition-not-met error (fixes #1455)
author Matthew Wild <mwild1@gmail.com>
date Sun, 27 Oct 2019 14:45:57 +0000
parent 10100:5ca9c4917885
child 10397:921e8b00778e
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
10100
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1 local array = require "util.array";
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2 describe("util.array", function ()
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3 describe("creation", function ()
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4 describe("from tablle", function ()
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5 it("works", function ()
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6 local a = array({"a", "b", "c"});
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7 assert.same({"a", "b", "c"}, a);
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8 end);
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9 end);
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10
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11 describe("from iterator", function ()
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12 it("works", function ()
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13 -- collects the first value, ie the keys
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14 local a = array(ipairs({true, true, true}));
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15 assert.same({1, 2, 3}, a);
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16 end);
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17 end);
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18
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19 describe("collect", function ()
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20 it("works", function ()
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21 -- collects the first value, ie the keys
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22 local a = array.collect(ipairs({true, true, true}));
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23 assert.same({1, 2, 3}, a);
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24 end);
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25 end);
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26
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27 end);
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28
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29 describe("metatable", function ()
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30 describe("operator", function ()
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31 describe("addition", function ()
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32 it("works", function ()
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33 local a = array({ "a", "b" });
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34 local b = array({ "c", "d" });
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35 assert.same({"a", "b", "c", "d"}, a + b);
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36 end);
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37 end);
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38
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39 describe("equality", function ()
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40 it("works", function ()
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41 local a1 = array({ "a", "b" });
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42 local a2 = array({ "a", "b" });
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43 local b = array({ "c", "d" });
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44 assert.truthy(a1 == a2);
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45 assert.falsy(a1 == b);
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46 end);
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47 end);
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48
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49 describe("division", function ()
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50 it("works", function ()
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51 local a = array({ "a", "b", "c" });
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52 local b = a / function (i) if i ~= "b" then return i .. "x" end end;
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53 assert.same({ "ax", "cx" }, b);
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54 end);
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55 end);
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56
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57 end);
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58 end);
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59
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60 describe("methods", function ()
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61 describe("map", function ()
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62 it("works", function ()
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63 local a = array({ "a", "b", "c" });
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64 local b = a:map(string.upper);
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65 assert.same({ "A", "B", "C" }, b);
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66 end);
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67 end);
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68
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69 describe("filter", function ()
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70 it("works", function ()
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71 local a = array({ "a", "b", "c" });
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72 a:filter(function (i) return i ~= "b" end);
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73 assert.same({ "a", "c" }, a);
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74 end);
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75 end);
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76
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77 describe("sort", function ()
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78 it("works", function ()
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79 local a = array({ 5, 4, 3, 1, 2, });
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80 a:sort();
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81 assert.same({ 1, 2, 3, 4, 5, }, a);
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82 end);
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83 end);
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84
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85 describe("unique", function ()
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86 it("works", function ()
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87 local a = array({ "a", "b", "c", "c", "a", "b" });
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88 a:unique();
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89 assert.same({ "a", "b", "c" }, a);
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90 end);
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91 end);
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92
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93 describe("pluck", function ()
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94 it("works", function ()
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95 local a = array({ { a = 1, b = -1 }, { a = 2, b = -2 }, });
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96 a:pluck("a");
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97 assert.same({ 1, 2 }, a);
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98 end);
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99 end);
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100
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101
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102 describe("reverse", function ()
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103 it("works", function ()
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104 local a = array({ "a", "b", "c" });
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105 a:reverse();
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106 assert.same({ "c", "b", "a" }, a);
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107 end);
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108 end);
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109
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110 -- TODO :shuffle
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111
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112 describe("append", function ()
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113 it("works", function ()
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114 local a = array({ "a", "b", "c" });
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115 a:append(array({ "d", "e", }));
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116 assert.same({ "a", "b", "c", "d", "e" }, a);
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117 end);
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118 end);
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119
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120 describe("push", function ()
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121 it("works", function ()
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122 local a = array({ "a", "b", "c" });
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123 a:push("d"):push("e");
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124 assert.same({ "a", "b", "c", "d", "e" }, a);
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125 end);
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126 end);
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127
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128 describe("pop", function ()
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129 it("works", function ()
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130 local a = array({ "a", "b", "c" });
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131 assert.equal("c", a:pop());
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132 assert.same({ "a", "b", }, a);
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133 end);
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134 end);
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135
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136 describe("concat", function ()
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137 it("works", function ()
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138 local a = array({ "a", "b", "c" });
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139 assert.equal("a,b,c", a:concat(","));
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140 end);
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141 end);
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142
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143 describe("length", function ()
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144 it("works", function ()
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145 local a = array({ "a", "b", "c" });
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146 assert.equal(3, a:length());
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147 end);
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148 end);
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149
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150 end);
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151
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152 -- TODO The various array.foo(array ina, array outa) functions
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153 end);
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154