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spec/util_events_spec.lua @ 9273:f2258e9750cf
mod_vcard_legacy: Include avatar data even if metadata can't be loaded
Normally both nodes should have the same configuration and matching
items, but we can't depend on it without having some code that enforces
it, which does not exist at the time of this commit.
Including the avatar itself should be prioritised. The image format can
be derived from magic bytes.
author | Kim Alvefur <zash@zash.se> |
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date | Fri, 07 Sep 2018 01:08:27 +0200 |
parent | 8802:befffddf1b25 |
child | 11058:c99afee1c548 |
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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); end); end);