local muc_util;

local st = require "util.stanza";

do

	-- XXX Hack for lack of a mock moduleapi

	local env = setmetatable({

		module = {

			_shared = {};

			-- Close enough to the real module:shared() for our purposes here

			shared = function (self, name)

				local t = self._shared[name];

				if t == nil then

					t = {};

					self._shared[name] = t;

				end

				return t;

			end;

		}

	}, { __index = _ENV or _G });

	muc_util = require "util.envload".envloadfile("plugins/muc/util.lib.lua", env)();

	end

describe("muc/util", function ()

	describe("filter_muc_x()", function ()

		it("correctly filters muc#user", function ()

			local stanza = st.message({ to = "to", from = "from", id = "foo" })

				:tag("x", { xmlns = "http://jabber.org/protocol/muc#user" })

					:tag("invite", { to = "user@example.com" });

			assert.equal(1, #stanza.tags);

			assert.equal(stanza, muc_util.filter_muc_x(stanza));

			assert.equal(0, #stanza.tags);

		end);

		it("correctly filters muc#user on a cloned stanza", function ()

			local stanza = st.message({ to = "to", from = "from", id = "foo" })

				:tag("x", { xmlns = "http://jabber.org/protocol/muc#user" })

					:tag("invite", { to = "user@example.com" });

			assert.equal(1, #stanza.tags);

			local filtered = muc_util.filter_muc_x(st.clone(stanza));

			assert.equal(1, #stanza.tags);

			assert.equal(0, #filtered.tags);

		end);

	end);

end);