<!DOCTYPE html>
<meta charset="utf-8">
<title>service worker: activation</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="resources/test-helpers.sub.js"></script>
<script>
// Registers, waits for activation, then unregisters on a dummy scope.
//
// This helper can be used in tests that assert that activation doesn't happen.
// It would not be sufficient to check the .waiting/.active properties once,
// since activation could be scheduled and just hasn't happened yet. Since this
// helper shows that activation of another registration completed, we can be
// sure that activation really will not happen.
function wait_for_activation_on_dummy_scope(t) {
var dummy_scope = 'resources/there/is/no/there/there';
var registration;
return navigator.serviceWorker.register('resources/empty-worker.js',
{ scope: dummy_scope })
.then(r => {
registration = r;
return wait_for_state(t, registration.installing, 'activated');
})
.then(() => registration.unregister());
}
// Returns {registration, iframe}, where |registration| has an active and
// waiting worker. The active worker controls |iframe| and has an inflight
// message event that can be finished by calling
// |registration.active.postMessage('go')|.
function setup_activation_test(t, scope, worker_url) {
var registration;
var iframe;
return navigator.serviceWorker.getRegistration(scope)
.then(r => {
if (r)
return r.unregister();
})
.then(() => {
// Create an in-scope iframe. Do this prior to registration to avoid
// racing between an update triggered by navigation and the update()
// call below.
return with_iframe(scope);
})
.then(f => {
iframe = f;
// Create an active worker.
return navigator.serviceWorker.register(worker_url, { scope: scope });
})
.then(r => {
registration = r;
add_result_callback(() => registration.unregister());
return wait_for_state(t, r.installing, 'activated');
})
.then(() => {
// Check that the frame was claimed.
assert_not_equals(
iframe.contentWindow.navigator.serviceWorker.controller, null);
// Create an in-flight request.
registration.active.postMessage('wait');
// Now there is both a controllee and an in-flight request.
// Initiate an update.
return registration.update();
})
.then(() => {
// Wait for a waiting worker.
return wait_for_state(t, registration.installing, 'installed');
})
.then(() => {
return wait_for_activation_on_dummy_scope(t);
})
.then(() => {
assert_not_equals(registration.waiting, null);
assert_not_equals(registration.active, null);
return Promise.resolve({registration: registration, iframe: iframe});
});
}
promise_test(t => {
var scope = 'resources/no-controllee';
var worker_url = 'resources/mint-new-worker.py';
var registration;
var iframe;
var new_worker;
return setup_activation_test(t, scope, worker_url)
.then(result => {
registration = result.registration;
iframe = result.iframe;
// Finish the in-flight request.
registration.active.postMessage('go');
return wait_for_activation_on_dummy_scope(t);
})
.then(() => {
// The new worker is still waiting. Remove the frame and it should
// activate.
new_worker = registration.waiting;
assert_equals(new_worker.state, 'installed');
var reached_active = wait_for_state(t, new_worker, 'activating');
iframe.remove();
return reached_active;
})
.then(() => {
assert_equals(new_worker, registration.active);
});
}, 'loss of controllees triggers activation');
promise_test(t => {
var scope = 'resources/no-request';
var worker_url = 'resources/mint-new-worker.py';
var registration;
var iframe;
var new_worker;
return setup_activation_test(t, scope, worker_url)
.then(result => {
registration = result.registration;
iframe = result.iframe;
// Remove the iframe.
iframe.remove();
return new Promise(resolve => setTimeout(resolve, 0));
})
.then(() => {
// Finish the request.
new_worker = registration.waiting;
var reached_active = wait_for_state(t, new_worker, 'activating');
registration.active.postMessage('go');
return reached_active;
})
.then(() => {
assert_equals(registration.active, new_worker);
});
}, 'finishing a request triggers activation');
promise_test(t => {
var scope = 'resources/skip-waiting';
var worker_url = 'resources/mint-new-worker.py?skip-waiting';
var registration;
var new_worker;
return setup_activation_test(t, scope, worker_url)
.then(result => {
registration = result.registration;
// Finish the request. The iframe does not need to be removed because
// skipWaiting() was called.
new_worker = registration.waiting;
var reached_active = wait_for_state(t, new_worker, 'activating');
registration.active.postMessage('go');
return reached_active;
})
.then(() => {
assert_equals(registration.active, new_worker);
});
}, 'skipWaiting bypasses no controllee requirement');
// This test is not really about activation, but otherwise is very
// similar to the other tests here.
promise_test(t => {
var scope = 'resources/unregister';
var worker_url = 'resources/mint-new-worker.py';
var registration;
var iframe;
var new_worker;
return setup_activation_test(t, scope, worker_url)
.then(result => {
registration = result.registration;
iframe = result.iframe;
// Remove the iframe.
iframe.remove();
return registration.unregister();
})
.then(() => {
// The unregister operation should wait for the active worker to
// finish processing its events before clearing the registration.
new_worker = registration.waiting;
var reached_redundant = wait_for_state(t, new_worker, 'redundant');
registration.active.postMessage('go');
return reached_redundant;
})
.then(() => {
assert_equals(registration.installing, null);
assert_equals(registration.waiting, null);
assert_equals(registration.active, null);
});
}, 'finishing a request triggers unregister');
</script>