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spec/util_array_spec.lua @ 12956:52fcdfe710ca
storagemanager: Add keyval+ (combined keyval + map) store type
This combines the two most common store types, which modules often end up
opening with both interfaces separately anyway.
As well as combining them, I've taken the opportunity to improve some of the
method names to make them clearer.
author | Matthew Wild <mwild1@gmail.com> |
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date | Tue, 27 Sep 2022 17:46:27 +0100 (2022-09-27) |
parent | 11787:3ae6fa901a8b |
child | 13245:ffe4adbd2af9 |
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local array = require "util.array"; describe("util.array", function () describe("creation", function () describe("from table", function () it("works", function () local a = array({"a", "b", "c"}); assert.same({"a", "b", "c"}, a); end); end); describe("from iterator", function () it("works", function () -- collects the first value, ie the keys local a = array(ipairs({true, true, true})); assert.same({1, 2, 3}, a); end); end); describe("collect", function () it("works", function () -- collects the first value, ie the keys local a = array.collect(ipairs({true, true, true})); assert.same({1, 2, 3}, a); end); end); end); describe("metatable", function () describe("operator", function () describe("addition", function () it("works", function () local a = array({ "a", "b" }); local b = array({ "c", "d" }); assert.same({"a", "b", "c", "d"}, a + b); end); end); describe("equality", function () it("works", function () local a1 = array({ "a", "b" }); local a2 = array({ "a", "b" }); local b = array({ "c", "d" }); assert.truthy(a1 == a2); assert.falsy(a1 == b); assert.falsy(a1 == { "a", "b" }, "Behavior of metatables changed in Lua 5.3"); end); end); describe("division", function () it("works", function () local a = array({ "a", "b", "c" }); local b = a / function (i) if i ~= "b" then return i .. "x" end end; assert.same({ "ax", "cx" }, b); end); end); end); end); describe("methods", function () describe("map", function () it("works", function () local a = array({ "a", "b", "c" }); local b = a:map(string.upper); assert.same({ "A", "B", "C" }, b); end); end); describe("filter", function () it("works", function () local a = array({ "a", "b", "c" }); a:filter(function (i) return i ~= "b" end); assert.same({ "a", "c" }, a); end); end); describe("sort", function () it("works", function () local a = array({ 5, 4, 3, 1, 2, }); a:sort(); assert.same({ 1, 2, 3, 4, 5, }, a); end); end); describe("unique", function () it("works", function () local a = array({ "a", "b", "c", "c", "a", "b" }); a:unique(); assert.same({ "a", "b", "c" }, a); end); end); describe("pluck", function () it("works", function () local a = array({ { a = 1, b = -1 }, { a = 2, b = -2 }, }); a:pluck("a"); assert.same({ 1, 2 }, a); end); end); describe("reverse", function () it("works", function () local a = array({ "a", "b", "c" }); a:reverse(); assert.same({ "c", "b", "a" }, a); end); end); -- TODO :shuffle describe("append", function () it("works", function () local a = array({ "a", "b", "c" }); a:append(array({ "d", "e", })); assert.same({ "a", "b", "c", "d", "e" }, a); end); end); describe("push", function () it("works", function () local a = array({ "a", "b", "c" }); a:push("d"):push("e"); assert.same({ "a", "b", "c", "d", "e" }, a); end); end); describe("pop", function () it("works", function () local a = array({ "a", "b", "c" }); assert.equal("c", a:pop()); assert.same({ "a", "b", }, a); end); end); describe("concat", function () it("works", function () local a = array({ "a", "b", "c" }); assert.equal("a,b,c", a:concat(",")); end); end); describe("length", function () it("works", function () local a = array({ "a", "b", "c" }); assert.equal(3, a:length()); end); end); describe("slice", function () it("works", function () local a = array({ "a", "b", "c" }); assert.equal(array.slice(a, 1, 2), array{ "a", "b" }); assert.equal(array.slice(a, 1, 3), array{ "a", "b", "c" }); assert.equal(array.slice(a, 2, 3), array{ "b", "c" }); assert.equal(array.slice(a, 2), array{ "b", "c" }); assert.equal(array.slice(a, -4), array{ "a", "b", "c" }); assert.equal(array.slice(a, -3), array{ "a", "b", "c" }); assert.equal(array.slice(a, -2), array{ "b", "c" }); assert.equal(array.slice(a, -1), array{ "c" }); end); it("can mutate", function () local a = array({ "a", "b", "c" }); assert.equal(a:slice(-1), array{"c"}); assert.equal(a, array{"c"}); end); end); end); -- TODO The various array.foo(array ina, array outa) functions end);