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webextension-polyfill
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fix: added inline comments to special runtime.onMessage wrapper tests.

This commit is contained in:
Luca Greco 2016-10-11 14:34:39 +02:00
parent f28858961f
commit a1469d6f17
1 changed files with 10 additions and 0 deletions
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10
test/test-runtime-onMessage.js
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@ -23,15 +23,23 @@ describe("browser-polyfill", () => {
return setupTestDOMWindow(fakeChrome).then(window => {
fakeChrome.runtime.onMessage.hasListener
// Fake the hasListener result for "listener not yet registered".
.onFirstCall().returns(false)
// Fake the hasListener result for "listener registered".
.onSecondCall().returns(true)
// Fake the hasListener result for "listener unregistered".
.onThirdCall().returns(false);
assert.equal(window.browser.runtime.onMessage.hasListener(messageListener),
false, "Got hasListener==false before the listener has been added");
window.browser.runtime.onMessage.addListener(messageListener);
assert.equal(window.browser.runtime.onMessage.hasListener(messageListener),
true, "Got hasListener==true once the listener has been added");
// Add the same listener again to test that it will be called with the
// same wrapped listener.
window.browser.runtime.onMessage.addListener(messageListener);
assert.ok(fakeChrome.runtime.onMessage.addListener.calledTwice,
@ -40,10 +48,12 @@ describe("browser-polyfill", () => {
fakeChrome.runtime.onMessage.addListener.firstCall.args[0],
"both the addListener calls received the same wrapped listener");
// Retrieve the wrapped listener and execute it to fake a received message.
const wrappedListener = fakeChrome.runtime.onMessage.addListener.firstCall.args[0];
wrappedListener("msg", {name: "sender"}, function sendResponse() {});
assert.ok(messageListener.calledOnce, "The listener has been called once");
// Remove the listener.
window.browser.runtime.onMessage.removeListener(messageListener);
assert.ok(fakeChrome.runtime.onMessage.removeListener.calledOnce,
"removeListener has been called once");