net.server_epoll: Add support for systemd socket activation
Allows creating listening sockets and accepting client connections
before Prosody starts.
This is unlike normal Prosody dynamic resource management, where ports
may added and removed at any time, and the ports defined by the config.
Weird things happen if these are closed (e.g. due to reload) so here we
prevent closing and ensure sockets are reused when opened again.
local events = require "util.events";
describe("util.events", function ()
it("should export a new() function", function ()
assert.is_function(events.new);
end);
describe("new()", function ()
it("should return return a new events object", function ()
local e = events.new();
assert.is_function(e.add_handler);
assert.is_function(e.remove_handler);
end);
end);
local e, h;
describe("API", function ()
before_each(function ()
e = events.new();
h = spy.new(function () end);
end);
it("should call handlers when an event is fired", function ()
e.add_handler("myevent", h);
e.fire_event("myevent");
assert.spy(h).was_called();
end);
it("should not call handlers when a different event is fired", function ()
e.add_handler("myevent", h);
e.fire_event("notmyevent");
assert.spy(h).was_not_called();
end);
it("should pass the data argument to handlers", function ()
e.add_handler("myevent", h);
e.fire_event("myevent", "mydata");
assert.spy(h).was_called_with("mydata");
end);
it("should support non-string events", function ()
local myevent = {};
e.add_handler(myevent, h);
e.fire_event(myevent, "mydata");
assert.spy(h).was_called_with("mydata");
end);
it("should call handlers in priority order", function ()
local data = {};
e.add_handler("myevent", function () table.insert(data, "h1"); end, 5);
e.add_handler("myevent", function () table.insert(data, "h2"); end, 3);
e.add_handler("myevent", function () table.insert(data, "h3"); end);
e.fire_event("myevent", "mydata");
assert.same(data, { "h1", "h2", "h3" });
end);
it("should support non-integer priority values", function ()
local data = {};
e.add_handler("myevent", function () table.insert(data, "h1"); end, 1);
e.add_handler("myevent", function () table.insert(data, "h2"); end, 0.5);
e.add_handler("myevent", function () table.insert(data, "h3"); end, 0.25);
e.fire_event("myevent", "mydata");
assert.same(data, { "h1", "h2", "h3" });
end);
it("should support negative priority values", function ()
local data = {};
e.add_handler("myevent", function () table.insert(data, "h1"); end, 1);
e.add_handler("myevent", function () table.insert(data, "h2"); end, 0);
e.add_handler("myevent", function () table.insert(data, "h3"); end, -1);
e.fire_event("myevent", "mydata");
assert.same(data, { "h1", "h2", "h3" });
end);
it("should support removing handlers", function ()
e.add_handler("myevent", h);
e.fire_event("myevent");
e.remove_handler("myevent", h);
e.fire_event("myevent");
assert.spy(h).was_called(1);
end);
it("should support adding multiple handlers at the same time", function ()
local ht = {
myevent1 = spy.new(function () end);
myevent2 = spy.new(function () end);
myevent3 = spy.new(function () end);
};
e.add_handlers(ht);
e.fire_event("myevent1");
e.fire_event("myevent2");
assert.spy(ht.myevent1).was_called();
assert.spy(ht.myevent2).was_called();
assert.spy(ht.myevent3).was_not_called();
end);
it("should support removing multiple handlers at the same time", function ()
local ht = {
myevent1 = spy.new(function () end);
myevent2 = spy.new(function () end);
myevent3 = spy.new(function () end);
};
e.add_handlers(ht);
e.remove_handlers(ht);
e.fire_event("myevent1");
e.fire_event("myevent2");
assert.spy(ht.myevent1).was_not_called();
assert.spy(ht.myevent2).was_not_called();
assert.spy(ht.myevent3).was_not_called();
end);
pending("should support adding handlers within an event handler")
pending("should support removing handlers within an event handler")
it("should support getting the current handlers for an event", function ()
e.add_handler("myevent", h);
local handlers = e.get_handlers("myevent");
assert.equal(h, handlers[1]);
end);
describe("wrappers", function ()
local w
before_each(function ()
w = spy.new(function (handlers, event_name, event_data)
assert.is_function(handlers);
assert.equal("myevent", event_name)
assert.equal("abc", event_data);
return handlers(event_name, event_data);
end);
end);
it("should get called", function ()
e.add_wrapper("myevent", w);
e.add_handler("myevent", h);
e.fire_event("myevent", "abc");
assert.spy(w).was_called(1);
assert.spy(h).was_called(1);
end);
it("should be removable", function ()
e.add_wrapper("myevent", w);
e.add_handler("myevent", h);
e.fire_event("myevent", "abc");
e.remove_wrapper("myevent", w);
e.fire_event("myevent", "abc");
assert.spy(w).was_called(1);
assert.spy(h).was_called(2);
end);
it("should allow multiple wrappers", function ()
local w2 = spy.new(function (handlers, event_name, event_data)
return handlers(event_name, event_data);
end);
e.add_wrapper("myevent", w);
e.add_handler("myevent", h);
e.add_wrapper("myevent", w2);
e.fire_event("myevent", "abc");
e.remove_wrapper("myevent", w);
e.fire_event("myevent", "abc");
assert.spy(w).was_called(1);
assert.spy(w2).was_called(2);
assert.spy(h).was_called(2);
end);
it("should support a mix of global and event wrappers", function ()
local w2 = spy.new(function (handlers, event_name, event_data)
return handlers(event_name, event_data);
end);
e.add_wrapper(false, w);
e.add_handler("myevent", h);
e.add_wrapper("myevent", w2);
e.fire_event("myevent", "abc");
e.remove_wrapper(false, w);
e.fire_event("myevent", "abc");
assert.spy(w).was_called(1);
assert.spy(w2).was_called(2);
assert.spy(h).was_called(2);
end);
end);
describe("global wrappers", function ()
local w
before_each(function ()
w = spy.new(function (handlers, event_name, event_data)
assert.is_function(handlers);
assert.equal("myevent", event_name)
assert.equal("abc", event_data);
return handlers(event_name, event_data);
end);
end);
it("should get called", function ()
e.add_wrapper(false, w);
e.add_handler("myevent", h);
e.fire_event("myevent", "abc");
assert.spy(w).was_called(1);
assert.spy(h).was_called(1);
end);
it("should be removable", function ()
e.add_wrapper(false, w);
e.add_handler("myevent", h);
e.fire_event("myevent", "abc");
e.remove_wrapper(false, w);
e.fire_event("myevent", "abc");
assert.spy(w).was_called(1);
assert.spy(h).was_called(2);
end);
end);
describe("debug hooks", function ()
it("should get called", function ()
local d = spy.new(function (handler, event_name, event_data) --luacheck: ignore 212/event_name
return handler(event_data);
end);
e.add_handler("myevent", h);
e.fire_event("myevent");
assert.spy(h).was_called(1);
assert.spy(d).was_called(0);
assert.is_nil(e.set_debug_hook(d));
e.fire_event("myevent", { mydata = true });
assert.spy(h).was_called(2);
assert.spy(d).was_called(1);
assert.spy(d).was_called_with(h, "myevent", { mydata = true });
assert.equal(d, e.set_debug_hook(nil));
e.fire_event("myevent", { mydata = false });
assert.spy(h).was_called(3);
assert.spy(d).was_called(1);
end);
it("setting should return any existing debug hook", function ()
local function f() end
local function g() end
assert.is_nil(e.set_debug_hook(f));
assert.is_equal(f, e.set_debug_hook(g));
assert.is_equal(g, e.set_debug_hook(f));
assert.is_equal(f, e.set_debug_hook(nil));
assert.is_nil(e.set_debug_hook(f));
end);
end);
end);
end);