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spec/util_array_spec.lua @ 12660:e8f57970ced5
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| author | Kim Alvefur <zash@zash.se> |
|---|---|
| date | Mon, 15 Aug 2022 16:36:00 +0200 |
| parent | 11787:3ae6fa901a8b |
| child | 13245:ffe4adbd2af9 |
| rev | line source |
|---|---|
| 10100 | 1 local array = require "util.array"; |
| 2 describe("util.array", function () | |
| 3 describe("creation", function () | |
| 10397 | 4 describe("from table", function () |
| 10100 | 5 it("works", function () |
| 6 local a = array({"a", "b", "c"}); | |
| 7 assert.same({"a", "b", "c"}, a); | |
| 8 end); | |
| 9 end); | |
| 10 | |
| 11 describe("from iterator", function () | |
| 12 it("works", function () | |
| 13 -- collects the first value, ie the keys | |
| 14 local a = array(ipairs({true, true, true})); | |
| 15 assert.same({1, 2, 3}, a); | |
| 16 end); | |
| 17 end); | |
| 18 | |
| 19 describe("collect", function () | |
| 20 it("works", function () | |
| 21 -- collects the first value, ie the keys | |
| 22 local a = array.collect(ipairs({true, true, true})); | |
| 23 assert.same({1, 2, 3}, a); | |
| 24 end); | |
| 25 end); | |
| 26 | |
| 27 end); | |
| 28 | |
| 29 describe("metatable", function () | |
| 30 describe("operator", function () | |
| 31 describe("addition", function () | |
| 32 it("works", function () | |
| 33 local a = array({ "a", "b" }); | |
| 34 local b = array({ "c", "d" }); | |
| 35 assert.same({"a", "b", "c", "d"}, a + b); | |
| 36 end); | |
| 37 end); | |
| 38 | |
| 39 describe("equality", function () | |
| 40 it("works", function () | |
| 41 local a1 = array({ "a", "b" }); | |
| 42 local a2 = array({ "a", "b" }); | |
| 43 local b = array({ "c", "d" }); | |
| 44 assert.truthy(a1 == a2); | |
| 45 assert.falsy(a1 == b); | |
|
10590
257dc26e8e65
util.array: Add a test case for a behavior change in Lua 5.3
Kim Alvefur <zash@zash.se>
parents:
10397
diff
changeset
|
46 assert.falsy(a1 == { "a", "b" }, "Behavior of metatables changed in Lua 5.3"); |
| 10100 | 47 end); |
| 48 end); | |
| 49 | |
| 50 describe("division", function () | |
| 51 it("works", function () | |
| 52 local a = array({ "a", "b", "c" }); | |
| 53 local b = a / function (i) if i ~= "b" then return i .. "x" end end; | |
| 54 assert.same({ "ax", "cx" }, b); | |
| 55 end); | |
| 56 end); | |
| 57 | |
| 58 end); | |
| 59 end); | |
| 60 | |
| 61 describe("methods", function () | |
| 62 describe("map", function () | |
| 63 it("works", function () | |
| 64 local a = array({ "a", "b", "c" }); | |
| 65 local b = a:map(string.upper); | |
| 66 assert.same({ "A", "B", "C" }, b); | |
| 67 end); | |
| 68 end); | |
| 69 | |
| 70 describe("filter", function () | |
| 71 it("works", function () | |
| 72 local a = array({ "a", "b", "c" }); | |
| 73 a:filter(function (i) return i ~= "b" end); | |
| 74 assert.same({ "a", "c" }, a); | |
| 75 end); | |
| 76 end); | |
| 77 | |
| 78 describe("sort", function () | |
| 79 it("works", function () | |
| 80 local a = array({ 5, 4, 3, 1, 2, }); | |
| 81 a:sort(); | |
| 82 assert.same({ 1, 2, 3, 4, 5, }, a); | |
| 83 end); | |
| 84 end); | |
| 85 | |
| 86 describe("unique", function () | |
| 87 it("works", function () | |
| 88 local a = array({ "a", "b", "c", "c", "a", "b" }); | |
| 89 a:unique(); | |
| 90 assert.same({ "a", "b", "c" }, a); | |
| 91 end); | |
| 92 end); | |
| 93 | |
| 94 describe("pluck", function () | |
| 95 it("works", function () | |
| 96 local a = array({ { a = 1, b = -1 }, { a = 2, b = -2 }, }); | |
| 97 a:pluck("a"); | |
| 98 assert.same({ 1, 2 }, a); | |
| 99 end); | |
| 100 end); | |
| 101 | |
| 102 | |
| 103 describe("reverse", function () | |
| 104 it("works", function () | |
| 105 local a = array({ "a", "b", "c" }); | |
| 106 a:reverse(); | |
| 107 assert.same({ "c", "b", "a" }, a); | |
| 108 end); | |
| 109 end); | |
| 110 | |
| 111 -- TODO :shuffle | |
| 112 | |
| 113 describe("append", function () | |
| 114 it("works", function () | |
| 115 local a = array({ "a", "b", "c" }); | |
| 116 a:append(array({ "d", "e", })); | |
| 117 assert.same({ "a", "b", "c", "d", "e" }, a); | |
| 118 end); | |
| 119 end); | |
| 120 | |
| 121 describe("push", function () | |
| 122 it("works", function () | |
| 123 local a = array({ "a", "b", "c" }); | |
| 124 a:push("d"):push("e"); | |
| 125 assert.same({ "a", "b", "c", "d", "e" }, a); | |
| 126 end); | |
| 127 end); | |
| 128 | |
| 129 describe("pop", function () | |
| 130 it("works", function () | |
| 131 local a = array({ "a", "b", "c" }); | |
| 132 assert.equal("c", a:pop()); | |
| 133 assert.same({ "a", "b", }, a); | |
| 134 end); | |
| 135 end); | |
| 136 | |
| 137 describe("concat", function () | |
| 138 it("works", function () | |
| 139 local a = array({ "a", "b", "c" }); | |
| 140 assert.equal("a,b,c", a:concat(",")); | |
| 141 end); | |
| 142 end); | |
| 143 | |
| 144 describe("length", function () | |
| 145 it("works", function () | |
| 146 local a = array({ "a", "b", "c" }); | |
| 147 assert.equal(3, a:length()); | |
| 148 end); | |
| 149 end); | |
| 150 | |
|
11787
3ae6fa901a8b
util.array: Add :slice() method + tests
Matthew Wild <mwild1@gmail.com>
parents:
10590
diff
changeset
|
151 describe("slice", function () |
|
3ae6fa901a8b
util.array: Add :slice() method + tests
Matthew Wild <mwild1@gmail.com>
parents:
10590
diff
changeset
|
152 it("works", function () |
|
3ae6fa901a8b
util.array: Add :slice() method + tests
Matthew Wild <mwild1@gmail.com>
parents:
10590
diff
changeset
|
153 local a = array({ "a", "b", "c" }); |
|
3ae6fa901a8b
util.array: Add :slice() method + tests
Matthew Wild <mwild1@gmail.com>
parents:
10590
diff
changeset
|
154 assert.equal(array.slice(a, 1, 2), array{ "a", "b" }); |
|
3ae6fa901a8b
util.array: Add :slice() method + tests
Matthew Wild <mwild1@gmail.com>
parents:
10590
diff
changeset
|
155 assert.equal(array.slice(a, 1, 3), array{ "a", "b", "c" }); |
|
3ae6fa901a8b
util.array: Add :slice() method + tests
Matthew Wild <mwild1@gmail.com>
parents:
10590
diff
changeset
|
156 assert.equal(array.slice(a, 2, 3), array{ "b", "c" }); |
|
3ae6fa901a8b
util.array: Add :slice() method + tests
Matthew Wild <mwild1@gmail.com>
parents:
10590
diff
changeset
|
157 assert.equal(array.slice(a, 2), array{ "b", "c" }); |
|
3ae6fa901a8b
util.array: Add :slice() method + tests
Matthew Wild <mwild1@gmail.com>
parents:
10590
diff
changeset
|
158 assert.equal(array.slice(a, -4), array{ "a", "b", "c" }); |
|
3ae6fa901a8b
util.array: Add :slice() method + tests
Matthew Wild <mwild1@gmail.com>
parents:
10590
diff
changeset
|
159 assert.equal(array.slice(a, -3), array{ "a", "b", "c" }); |
|
3ae6fa901a8b
util.array: Add :slice() method + tests
Matthew Wild <mwild1@gmail.com>
parents:
10590
diff
changeset
|
160 assert.equal(array.slice(a, -2), array{ "b", "c" }); |
|
3ae6fa901a8b
util.array: Add :slice() method + tests
Matthew Wild <mwild1@gmail.com>
parents:
10590
diff
changeset
|
161 assert.equal(array.slice(a, -1), array{ "c" }); |
|
3ae6fa901a8b
util.array: Add :slice() method + tests
Matthew Wild <mwild1@gmail.com>
parents:
10590
diff
changeset
|
162 end); |
|
3ae6fa901a8b
util.array: Add :slice() method + tests
Matthew Wild <mwild1@gmail.com>
parents:
10590
diff
changeset
|
163 |
|
3ae6fa901a8b
util.array: Add :slice() method + tests
Matthew Wild <mwild1@gmail.com>
parents:
10590
diff
changeset
|
164 it("can mutate", function () |
|
3ae6fa901a8b
util.array: Add :slice() method + tests
Matthew Wild <mwild1@gmail.com>
parents:
10590
diff
changeset
|
165 local a = array({ "a", "b", "c" }); |
|
3ae6fa901a8b
util.array: Add :slice() method + tests
Matthew Wild <mwild1@gmail.com>
parents:
10590
diff
changeset
|
166 assert.equal(a:slice(-1), array{"c"}); |
|
3ae6fa901a8b
util.array: Add :slice() method + tests
Matthew Wild <mwild1@gmail.com>
parents:
10590
diff
changeset
|
167 assert.equal(a, array{"c"}); |
|
3ae6fa901a8b
util.array: Add :slice() method + tests
Matthew Wild <mwild1@gmail.com>
parents:
10590
diff
changeset
|
168 end); |
|
3ae6fa901a8b
util.array: Add :slice() method + tests
Matthew Wild <mwild1@gmail.com>
parents:
10590
diff
changeset
|
169 end); |
| 10100 | 170 end); |
| 171 | |
| 172 -- TODO The various array.foo(array ina, array outa) functions | |
| 173 end); | |
| 174 |
