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<!DOCTYPE html>
<title>ServiceWorkerGlobalScope: postMessage</title>
<script src='/resources/testharness.js'></script>
<script src='/resources/testharnessreport.js'></script>
<script src='../resources/test-helpers.sub.js'></script>
<script>
promise_test(function(t) {
var script = 'resources/postmessage-loopback-worker.js';
var scope = 'resources/scope/postmessage-loopback';
var registration;
return service_worker_unregister_and_register(t, script, scope)
.then(function(r) {
t.add_cleanup(function() {
return service_worker_unregister(t, scope);
});
registration = r;
return wait_for_state(t, registration.installing, 'activated');
})
.then(function() {
var channel = new MessageChannel();
var saw_message = new Promise(function(resolve) {
channel.port1.onmessage = function(event) {
resolve(event.data);
};
});
registration.active.postMessage({port: channel.port2},
[channel.port2]);
return saw_message;
})
.then(function(result) {
assert_equals(result, 'OK');
});
}, 'Post loopback messages');
promise_test(function(t) {
var script1 = 'resources/postmessage-ping-worker.js';
var script2 = 'resources/postmessage-pong-worker.js';
var scope = 'resources/scope/postmessage-pingpong';
var registration;
var frame;
return service_worker_unregister_and_register(t, script1, scope)
.then(function(r) {
t.add_cleanup(function() {
return service_worker_unregister(t, scope);
});
registration = r;
return wait_for_state(t, registration.installing, 'activated');
})
.then(function() {
// A controlled frame is necessary for keeping a waiting worker.
return with_iframe(scope);
})
.then(function(f) {
frame = f;
return navigator.serviceWorker.register(script2, {scope: scope});
})
.then(function(r) {
return wait_for_state(t, r.installing, 'installed');
})
.then(function() {
var channel = new MessageChannel();
var saw_message = new Promise(function(resolve) {
channel.port1.onmessage = function(event) {
resolve(event.data);
};
});
registration.active.postMessage({port: channel.port2},
[channel.port2]);
return saw_message;
})
.then(function(result) {
assert_equals(result, 'OK');
frame.remove();
});
}, 'Post messages among service workers');
</script>
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