local iter = require "util.iterators";

local set = require "util.set";

describe("util.iterators", function ()

	describe("join", function ()

		it("should produce a joined iterator", function ()

			local expect = { "a", "b", "c", 1, 2, 3 };

			local output = {};

			for x in iter.join(iter.values({"a", "b", "c"})):append(iter.values({1, 2, 3})) do

				table.insert(output, x);

			end

			assert.same(output, expect);

		end);

	end);

end);