mithril-vndb/api/tests/test-mount.js
Leo Horie 0005cf26ee refactor redraw into pubsub and autoredraw
- pubsub is a basic pubsub impl
- autoredraw is glue code to register callback to pubsub and onevent

moved e.redraw to autoredraw
2016-05-21 00:37:34 -04:00

125 lines
2.5 KiB
JavaScript

"use strict"
var o = require("../../ospec/ospec")
var domMock = require("../../test-utils/domMock")
var m = require("../../render/hyperscript")
var apiPubSub = require("../../api/pubsub")
var apiMounter = require("../../api/mount")
o.spec("mount", function() {
var FRAME_BUDGET = Math.floor(1000 / 60)
var $window, root, redraw, mount
o.beforeEach(function() {
$window = domMock()
root = $window.document.body
redraw = apiPubSub()
mount = apiMounter($window, redraw)
})
o("renders into `root`", function() {
mount(root, {
view : function() {
return m("div")
}
})
o(root.firstChild.nodeName).equals("DIV")
})
o("redraws on events", function(done) {
var onupdate = o.spy()
var oninit = o.spy()
var onclick = o.spy()
var e = $window.document.createEvent("MouseEvents")
e.initEvent("click", true, true)
mount(root, {
view : function() {
return m("div", {
oninit : oninit,
onupdate : onupdate,
onclick : onclick,
})
}
})
root.firstChild.dispatchEvent(e)
o(oninit.callCount).equals(1)
o(onupdate.callCount).equals(0)
o(onclick.callCount).equals(1)
o(onclick.this).equals(root.firstChild)
o(onclick.args[0].type).equals("click")
o(onclick.args[0].target).equals(root.firstChild)
// Wrapped to give time for the rate-limited redraw to fire
setTimeout(function() {
o(onupdate.callCount).equals(1)
done()
}, FRAME_BUDGET)
})
o("event handlers can skip redraw", function(done) {
var onupdate = o.spy()
var oninit = o.spy()
var e = $window.document.createEvent("MouseEvents")
e.initEvent("click", true, true)
mount(root, {
view: function() {
return m("div", {
oninit: oninit,
onupdate: onupdate,
onclick: function(e) {
e.redraw = false
}
})
}
})
root.firstChild.dispatchEvent(e)
o(oninit.callCount).equals(1)
// Wrapped to ensure no redraw fired
setTimeout(function() {
o(onupdate.callCount).equals(0)
done()
}, FRAME_BUDGET)
})
o("redraws when the render function is run", function(done) {
var onupdate = o.spy()
var oninit = o.spy()
mount(root, {
view : function() {
return m("div", {
oninit : oninit,
onupdate : onupdate
})
}
})
o(oninit.callCount).equals(1)
o(onupdate.callCount).equals(0)
redraw.publish()
// Wrapped to give time for the rate-limited redraw to fire
setTimeout(function() {
o(onupdate.callCount).equals(1)
done()
}, FRAME_BUDGET)
})
})