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Test Info: Warnings
- This test runs only with pattern: os != 'android'
- Manifest: browser/components/urlbar/tests/unit/xpcshell.toml
/* Any copyright is dedicated to the Public Domain.
/**
* These tests unit test the listener registration and notification dispatch of
* UrlbarChildController.
*/
"use strict";
let sandbox;
let controller;
add_setup(function () {
sandbox = sinon.createSandbox();
controller = UrlbarTestUtils.newMockController();
});
add_task(function test_add_and_remove_listeners() {
Assert.throws(
() => controller.addListener(null),
/Expected listener to be an object/,
"Should throw for a null listener"
);
Assert.throws(
() => controller.addListener(123),
/Expected listener to be an object/,
"Should throw for a non-object listener"
);
const listener = { onFake: sandbox.stub() };
controller.addListener(listener);
controller.notify("onFake");
Assert.equal(
listener.onFake.callCount,
1,
"Should have notified the added listener."
);
// Adding a non-existent listener shouldn't throw.
controller.removeListener(123);
controller.removeListener(listener);
controller.notify("onFake");
Assert.equal(
listener.onFake.callCount,
1,
"Should not have notified the removed listener."
);
sandbox.resetHistory();
});
add_task(function test__notify() {
const listener1 = {
onFake: sandbox.stub().callsFake(() => {
throw new Error("fake error");
}),
};
const listener2 = {
onFake: sandbox.stub(),
};
controller.addListener(listener1);
controller.addListener(listener2);
const param = "1234";
controller.notify("onFake", param);
Assert.equal(
listener1.onFake.callCount,
1,
"Should have called the first listener method."
);
Assert.deepEqual(
listener1.onFake.args[0],
[param],
"Should have called the first listener with the correct argument"
);
Assert.equal(
listener2.onFake.callCount,
1,
"Should have called the second listener method."
);
Assert.deepEqual(
listener2.onFake.args[0],
[param],
"Should have called the first listener with the correct argument"
);
controller.removeListener(listener2);
controller.removeListener(listener1);
// This should succeed without errors.
controller.notify("onNewFake");
sandbox.resetHistory();
});