return function()local Y=game:GetService("\082\101\112\108\105\099\097\116\101\100\083\116\111\114\097\103\101")local j=Y.Packages local D=require(j.Llama)local E=D.Set local T=E.map it("\115\104\111\117\108\100 \118\097\108\105\100\097\116\101 \116\121\112\101\115",function()local Y={{0};{{};0},{0,function() end}}for j=1,#Y,1 do local D,E=pcall(function()T(unpack(Y[j]))end);(expect(string.find(E,"\101\120\112\101\099\116\101\100\044 \103\111\116"))).to.be.ok()end end)it("\115\104\111\117\108\100 \114\101\116\117\114\110 \097 \110\101\119 \116\097\098\108\101",function()local Y={}local function j(Y)return Y end;(expect(T(Y,j))).never.to.equal(Y)end)it("\115\104\111\117\108\100 \110\111\116 \109\117\116\097\116\101 \112\097\115\115\101\100 \105\110 \116\097\098\108\101\115",function()local Y={foo=true,bar=true,baz=true}local j=0 setmetatable(Y,{__newindex=function()j=j+1 end})local function D(Y)return Y end T(Y,D);(expect(j)).to.equal(0)end)it("\115\104\111\117\108\100 \099\097\108\108 \116\104\101 \099\097\108\108\098\097\099\107 \102\111\114 \101\097\099\104 \101\108\101\109\101\110\116",function()local Y={foo=true,bar=true;baz=true}local j={}local function D(Y)j[Y]=true return Y end T(Y,D)for Y,D in pairs(Y)do(expect(j[Y])).to.equal(D)end for j,D in pairs(j)do(expect(D)).to.equal(Y[j])end end)it("\115\104\111\117\108\100 \115\101\116 \116\104\101 \110\101\119 \107\101\121\115 \116\111 \116\104\101 \102\105\114\115\116 \114\101\115\117\108\116 \111\102 \116\104\101 \103\105\118\101\110 \099\097\108\108\098\097\099\107",function()local Y={foo=true;bar=true,baz=true}local function j(Y)return"\102\111\111"..Y end local D=T(Y,j)for Y,E in pairs(Y)do(expect(D[j(Y)])).to.be.ok()end end)it("\115\104\111\117\108\100 \114\101\109\111\118\101 \118\097\108\117\101\115 \119\104\101\110 \110\105\108 \105\115 \114\101\116\117\114\110\101\100",function()local Y={foo=true,bar=true,baz=true}local function j()return nil end local D=T(Y,j);(expect(next(D,nil))).never.to.be.ok()end)it("\115\104\111\117\108\100 \119\111\114\107 \119\105\116\104 \097\110 \101\109\112\116\121 \108\105\115\116",function()local Y={}local j=T(Y,function() end);(expect(j)).to.be.a("\116\097\098\108\101");(expect(j)).never.to.equal(Y)end)end
return function()
	local ReplicatedStorage = game:GetService("ReplicatedStorage")

	local Packages = ReplicatedStorage.Packages
	local Llama = require(Packages.Llama)

	local Set = Llama.Set
	local map = Set.map

	it("should validate types", function()
		local args = {
			{ 0 },
			{ {}, 0 },
			{ 0, function() end }
		}

		for i = 1, #args do
			local _, err = pcall(function()
				map(unpack(args[i]))
			end)

			expect(string.find(err, "expected, got")).to.be.ok()
		end
	end)

	it("should return a new table", function()
		local a = {}

		local function doNothing(v)
			return v
		end

		expect(map(a, doNothing)).never.to.equal(a)
	end)

	it("should not mutate passed in tables", function()
		local a = {
			foo = true,
			bar = true,
			baz = true,
		}
		local mutations = 0

		setmetatable(a, {
			__newindex = function()
				mutations = mutations + 1
			end,
		})

		local function doNothing(v)
			return v
		end

		map(a, doNothing)

		expect(mutations).to.equal(0)
	end)

	it("should call the callback for each element", function()
		local a = {
			foo = true,
			bar = true,
			baz = true,
		}
		local copy = {}

		local function copier(v)
			copy[v] = true
			return v
		end

		map(a, copier)

		for k, v in pairs(a) do
			expect(copy[k]).to.equal(v)
		end

		for k, v in pairs(copy) do
			expect(v).to.equal(a[k])
		end
	end)

	it("should set the new keys to the first result of the given callback", function()
		local a = {
			foo = true,
			bar = true,
			baz = true,
		}

		local function fooify(v)
			return "foo" .. v
		end

		local b = map(a, fooify)

		for k, _ in pairs(a) do
			expect(b[fooify(k)]).to.be.ok()
		end
	end)

	it("should remove values when nil is returned", function()
		local a = {
			foo = true, 
			bar = true, 
			baz = true,
		}

		local function nothing()
			return nil
		end

		local b = map(a, nothing)

		expect(next(b, nil)).never.to.be.ok()
	end)

	it("should work with an empty list", function()
		local a = {}
		local b = map(a, function() end)

		expect(b).to.be.a("table")
		expect(b).never.to.equal(a)
	end)
end