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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/**
* Test for nested notifications of Places events.
* In this test, we check behavior of listeners of Places event upon firing nested
* notification from inside of listener that received notifications.
*/
add_task(async function() {
// We prepare 6 listeners for the test.
// 1. Listener that added before root notification.
const addRoot = new Observer();
// 2. Listener that added before root notification
// but removed before first nest notification.
const addRootRemoveFirst = new Observer();
// 3. Listener that added before root notification
// but removed before second nest notification.
const addRootRemoveSecond = new Observer();
// 4. Listener that added before first nest notification.
const addFirst = new Observer();
// 5. Listener that added before first nest notification
// but removed before second nest notification.
const addFirstRemoveSecond = new Observer();
// 6. Listener that added before second nest notification.
const addSecond = new Observer();
// This is a listener listened the root notification
// and do what we have to do for test in the first nest.
const firstNestOperator = () => {
info("Start to operate at first nest");
// Remove itself to avoid listening more.
removePlacesListener(firstNestOperator);
info("Add/Remove test listeners at first nest");
removePlacesListener(addRootRemoveFirst.handle);
addPlacesListener(addFirst.handle);
addPlacesListener(addFirstRemoveSecond.handle);
// Add second nest operator.
addPlacesListener(secondNestOperator);
info("Send notification at first nest");
notifyPlacesEvent("first");
};
// This is a listener listened the first nest notification
// and do what we have to do for test in the second nest.
const secondNestOperator = () => {
info("Start to operate at second nest");
// Remove itself to avoid listening more.
removePlacesListener(secondNestOperator);
info("Add/Remove test listeners at second nest");
removePlacesListener(addRootRemoveSecond.handle);
removePlacesListener(addFirstRemoveSecond.handle);
addPlacesListener(addSecond.handle);
info("Send notification at second nest");
notifyPlacesEvent("second");
};
info("Add test listeners that handle notification sent at root");
addPlacesListener(addRoot.handle);
addPlacesListener(addRootRemoveFirst.handle);
addPlacesListener(addRootRemoveSecond.handle);
// Add first nest operator.
addPlacesListener(firstNestOperator);
info("Send notification at root");
notifyPlacesEvent("root");
info("Check whether or not test listeners could get expected notifications");
assertNotifications(addRoot.notifications, [
[{ guid: "root" }],
[{ guid: "first" }],
[{ guid: "second" }],
]);
assertNotifications(addRootRemoveFirst.notifications, [[{ guid: "root" }]]);
assertNotifications(addRootRemoveSecond.notifications, [
[{ guid: "root" }],
[{ guid: "first" }],
]);
assertNotifications(addFirst.notifications, [
[{ guid: "first" }],
[{ guid: "second" }],
]);
assertNotifications(addFirstRemoveSecond.notifications, [
[{ guid: "first" }],
]);
assertNotifications(addSecond.notifications, [[{ guid: "second" }]]);
});
function addPlacesListener(listener) {
PlacesObservers.addListener(["bookmark-added"], listener);
}
function removePlacesListener(listener) {
PlacesObservers.removeListener(["bookmark-added"], listener);
}
function notifyPlacesEvent(guid) {
PlacesObservers.notifyListeners([
new PlacesBookmarkAddition({
dateAdded: 0,
guid,
id: -1,
index: 0,
isTagging: false,
itemType: 1,
parentGuid: "fake",
parentId: -2,
source: 0,
title: guid,
url: `http://example.com/${guid}`,
}),
]);
}
class Observer {
constructor() {
this.notifications = [];
this.handle = this.handle.bind(this);
}
handle(events) {
this.notifications.push(events);
}
}
/**
* Assert notifications the observer received.
*
* @param Array - notifications
* @param Array - expectedNotifications
*/
function assertNotifications(notifications, expectedNotifications) {
Assert.equal(
notifications.length,
expectedNotifications.length,
"Number of notifications is correct"
);
for (let i = 0; i < notifications.length; i++) {
info(`Check notifications[${i}]`);
const placesEvents = notifications[i];
const expectedPlacesEvents = expectedNotifications[i];
assertPlacesEvents(placesEvents, expectedPlacesEvents);
}
}
/**
* Assert Places events.
* This function checks given expected event field only.
*
* @param Array - events
* @param Array - expectedEvents
*/
function assertPlacesEvents(events, expectedEvents) {
Assert.equal(
events.length,
expectedEvents.length,
"Number of Places events is correct"
);
for (let i = 0; i < events.length; i++) {
info(`Check Places events[${i}]`);
const event = events[i];
const expectedEvent = expectedEvents[i];
for (let field in expectedEvent) {
Assert.equal(event[field], expectedEvent[field], `${field} is correct`);
}
}
}
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