gecko/addon-sdk/source/test/test-observer-service.js

80 lines
2.8 KiB
JavaScript

/* 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/. */
const observers = require("sdk/deprecated/observer-service");
const { Cc, Ci } = require("chrome");
const { LoaderWithHookedConsole2 } = require("sdk/test/loader");
exports.testUnloadAndErrorLogging = function(assert) {
let { loader, messages } = LoaderWithHookedConsole2(module);
var sbobsvc = loader.require("sdk/deprecated/observer-service");
var timesCalled = 0;
var cb = function(subject, data) {
timesCalled++;
};
var badCb = function(subject, data) {
throw new Error("foo");
};
sbobsvc.add("blarg", cb);
observers.notify("blarg", "yo yo");
assert.equal(timesCalled, 1);
sbobsvc.add("narg", badCb);
observers.notify("narg", "yo yo");
assert.equal(messages[0], "console.error: " + require("sdk/self").name + ": \n");
var lines = messages[1].split("\n");
assert.equal(lines[0], " Message: Error: foo");
assert.equal(lines[1], " Stack:");
// Keep in mind to update "18" to the line of "throw new Error("foo")"
assert.ok(lines[2].indexOf(module.uri + ":18") != -1);
loader.unload();
observers.notify("blarg", "yo yo");
assert.equal(timesCalled, 1);
};
exports.testObserverService = function(assert) {
var ios = Cc['@mozilla.org/network/io-service;1']
.getService(Ci.nsIIOService);
var service = Cc["@mozilla.org/observer-service;1"].
getService(Ci.nsIObserverService);
var uri = ios.newURI("http://www.foo.com", null, null);
var timesCalled = 0;
var lastSubject = null;
var lastData = null;
var cb = function(subject, data) {
timesCalled++;
lastSubject = subject;
lastData = data;
};
observers.add("blarg", cb);
service.notifyObservers(uri, "blarg", "some data");
assert.equal(timesCalled, 1,
"observer-service.add() should call callback");
assert.equal(lastSubject, uri,
"observer-service.add() should pass subject");
assert.equal(lastData, "some data",
"observer-service.add() should pass data");
function customSubject() {}
function customData() {}
observers.notify("blarg", customSubject, customData);
assert.equal(timesCalled, 2,
"observer-service.notify() should work");
assert.equal(lastSubject, customSubject,
"observer-service.notify() should pass+wrap subject");
assert.equal(lastData, customData,
"observer-service.notify() should pass data");
observers.remove("blarg", cb);
service.notifyObservers(null, "blarg", "some data");
assert.equal(timesCalled, 2,
"observer-service.remove() should work");
};
require('sdk/test').run(exports);