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spec/util_array_spec.lua @ 11432:113f3912c7cb
util: Add Teal interface definition files
Enables writing code in Teal that is aware of the interfaces and
function prototypes in these other utils.
Could also be used to do type checks on Lua sources, but this tends to
have a lot of noise.
author | Kim Alvefur <zash@zash.se> |
---|---|
date | Tue, 09 Mar 2021 14:36:46 +0100 |
parent | 10590:257dc26e8e65 |
child | 11787:3ae6fa901a8b |
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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); end); -- TODO The various array.foo(array ina, array outa) functions end);