gecko-dev/testing/marionette/test_dom.js

279 строки
7.2 KiB
JavaScript
Исходник Обычный вид История

const {utils: Cu} = Components;
const {
ContentEventObserverService,
WebElementEventTarget,
} = Cu.import("chrome://marionette/content/dom.js", {});
class MessageSender {
constructor() {
this.listeners = {};
this.sent = [];
}
addMessageListener(name, listener) {
this.listeners[name] = listener;
}
sendAsyncMessage(name, data, objects) {
this.sent.push({name, data, objects});
}
}
class Window {
constructor() {
this.events = [];
}
addEventListener(type, listener) {
this.events.push(type);
}
removeEventListener(type, listener) {
for (let i = 0; i < this.events.length; ++i) {
if (this.events[i] === type) {
this.events.splice(i, 1);
return;
}
}
}
}
add_test(function test_WebElementEventTarget_addEventListener_init() {
let ipc = new MessageSender();
let eventTarget = new WebElementEventTarget(ipc);
equal(Object.keys(eventTarget.listeners).length, 0);
equal(Object.keys(ipc.listeners).length, 1);
run_next_test();
});
add_test(function test_addEventListener() {
let ipc = new MessageSender();
let eventTarget = new WebElementEventTarget(ipc);
let listener = () => {};
eventTarget.addEventListener("click", listener);
// click listener was appended
equal(Object.keys(eventTarget.listeners).length, 1);
ok("click" in eventTarget.listeners);
equal(eventTarget.listeners["click"].length, 1);
equal(eventTarget.listeners["click"][0], listener);
// should have sent a registration message
deepEqual(
ipc.sent[0], {
name: "Marionette:DOM:AddEventListener",
data: {type: "click"},
objects: undefined,
});
run_next_test();
});
add_test(function test_addEventListener_sameReference() {
let ipc = new MessageSender();
let eventTarget = new WebElementEventTarget(ipc);
let listener = () => {};
eventTarget.addEventListener("click", listener);
eventTarget.addEventListener("click", listener);
equal(eventTarget.listeners["click"].length, 1);
run_next_test();
});
add_test(function test_WebElementEventTarget_addEventListener_once() {
let ipc = new MessageSender();
let eventTarget = new WebElementEventTarget(ipc);
eventTarget.addEventListener("click", () => {}, {once: true});
equal(eventTarget.listeners["click"][0].once, true);
eventTarget.dispatchEvent({type: "click"});
equal(eventTarget.listeners["click"].length, 0);
deepEqual(
ipc.sent[1], {
name: "Marionette:DOM:RemoveEventListener",
data: {type: "click"},
objects: undefined,
});
run_next_test();
});
add_test(function test_WebElementEventTarget_removeEventListener() {
let ipc = new MessageSender();
let eventTarget = new WebElementEventTarget(ipc);
equal(Object.keys(eventTarget.listeners).length, 0);
eventTarget.removeEventListener("click", () => {});
equal(Object.keys(eventTarget.listeners).length, 0);
let firstListener = () => {};
eventTarget.addEventListener("click", firstListener);
equal(eventTarget.listeners["click"].length, 1);
ok(eventTarget.listeners["click"][0] === firstListener);
let secondListener = () => {};
eventTarget.addEventListener("click", secondListener);
equal(eventTarget.listeners["click"].length, 2);
ok(eventTarget.listeners["click"][1] === secondListener);
ok(eventTarget.listeners["click"][0] !== eventTarget.listeners["click"][1]);
eventTarget.removeEventListener("click", secondListener);
equal(eventTarget.listeners["click"].length, 1);
ok(eventTarget.listeners["click"][0] === firstListener);
// event should not have been unregistered
// because there still exists another click event
equal(ipc.sent[ipc.sent.length - 1].name, "Marionette:DOM:AddEventListener");
eventTarget.removeEventListener("click", firstListener);
equal(eventTarget.listeners["click"].length, 0);
deepEqual(
ipc.sent[ipc.sent.length - 1],
{
name: "Marionette:DOM:RemoveEventListener",
data: {type: "click"},
objects: undefined,
});
run_next_test();
});
add_test(function test_WebElementEventTarget_dispatchEvent() {
let ipc = new MessageSender();
let eventTarget = new WebElementEventTarget(ipc);
let listenerCalled = false;
let listener = () => listenerCalled = true;
eventTarget.addEventListener("click", listener);
eventTarget.dispatchEvent({type: "click"});
ok(listenerCalled);
run_next_test();
});
add_test(function test_WebElementEventTarget_dispatchEvent_multipleListeners() {
let ipc = new MessageSender();
let eventTarget = new WebElementEventTarget(ipc);
let clicksA = 0;
let clicksB = 0;
let listenerA = () => ++clicksA;
let listenerB = () => ++clicksB;
// the same listener should only be added, and consequently fire, once
eventTarget.addEventListener("click", listenerA);
eventTarget.addEventListener("click", listenerA);
eventTarget.addEventListener("click", listenerB);
eventTarget.dispatchEvent({type: "click"});
equal(clicksA, 1);
equal(clicksB, 1);
run_next_test();
});
add_test(function test_ContentEventObserverService_add() {
let ipc = new MessageSender();
let win = new Window();
let obs = new ContentEventObserverService(
win, ipc.sendAsyncMessage.bind(ipc));
equal(obs.events.size, 0);
equal(win.events.length, 0);
obs.add("foo");
equal(obs.events.size, 1);
equal(win.events.length, 1);
equal(obs.events.values().next().value, "foo");
equal(win.events[0], "foo");
obs.add("foo");
equal(obs.events.size, 1);
equal(win.events.length, 1);
run_next_test();
});
add_test(function test_ContentEventObserverService_remove() {
let ipc = new MessageSender();
let win = new Window();
let obs = new ContentEventObserverService(
win, ipc.sendAsyncMessage.bind(ipc));
obs.remove("foo");
equal(obs.events.size, 0);
equal(win.events.length, 0);
obs.add("bar");
equal(obs.events.size, 1);
equal(win.events.length, 1);
obs.remove("bar");
equal(obs.events.size, 0);
equal(win.events.length, 0);
obs.add("baz");
obs.add("baz");
equal(obs.events.size, 1);
equal(win.events.length, 1);
obs.add("bah");
equal(obs.events.size, 2);
equal(win.events.length, 2);
obs.remove("baz");
equal(obs.events.size, 1);
equal(win.events.length, 1);
obs.remove("bah");
equal(obs.events.size, 0);
equal(win.events.length, 0);
run_next_test();
});
add_test(function test_ContentEventObserverService_clear() {
let ipc = new MessageSender();
let win = new Window();
let obs = new ContentEventObserverService(
win, ipc.sendAsyncMessage.bind(ipc));
obs.clear();
equal(obs.events.size, 0);
equal(win.events.length, 0);
obs.add("foo");
obs.add("foo");
obs.add("bar");
equal(obs.events.size, 2);
equal(win.events.length, 2);
obs.clear();
equal(obs.events.size, 0);
equal(win.events.length, 0);
run_next_test();
});
add_test(function test_ContentEventObserverService_handleEvent() {
let ipc = new MessageSender();
let win = new Window();
let obs = new ContentEventObserverService(
win, ipc.sendAsyncMessage.bind(ipc));
obs.handleEvent({type: "click", target: win});
deepEqual(
ipc.sent[0], {
name: "Marionette:DOM:OnEvent",
data: {type: "click"},
objects: {"target": win},
});
run_next_test();
});