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Test Info: Warnings
- This test has a WPT meta file that expects 1 subtest issues.
- This WPT test may be referenced by the following Test IDs:
- /workers/WorkerGlobalScope-close.html - WPT Dashboard Interop Dashboard
<!DOCTYPE html>
<title>Test WorkerGlobalScope.close functionality.</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
setup({ allow_uncaught_exception: true });
async_test(function(t) {
var worker = new Worker('support/WorkerGlobalScope-close.js');
worker.postMessage("typeofClose");
worker.onmessage = t.step_func_done(function(evt) {
assert_equals(evt.data, "typeof close: function");
});
}, 'Test type of close function.');
async_test(function(t) {
var worker = new Worker('support/WorkerGlobalScope-close.js');
worker.postMessage("ping");
worker.onmessage = t.step_func(function(evt) {
assert_equals(evt.data, "pong");
// Tell the worker to close, then send a followup message.
worker.postMessage("close");
// The worker may or may not be closing/closed by this call. If it is, the
// message won't be enqueued on the worker's event loop. If it isn't, the
// message will be enqueued but shouldn't be handled by the worker because
// the prior postMessage will cause the worker to close. In either case,
// the worker shouldn't postMessage back "pong".
//
// This also means that at this point we can't confidently test
// postMessage-ing a worker that will close nor a worker that is already
// closing/closed.
worker.postMessage("ping");
worker.onmessage = t.step_func(function(evt) {
assert_not_equals(evt.data, "pong");
// The worker should definitely be closed by now, so we can confidently
// test postMessage-ing a closed worker. This postMessage shouldn't throw
// or cause the worker to postMessage back "pong" (it shouldn't receive
// any events after closing).
worker.postMessage("ping");
t.step_timeout(function() { t.done(); }, 500);
});
});
}, 'Test sending a message after closing.');
async_test(function(t) {
var worker = new Worker('support/WorkerGlobalScope-close.js');
worker.postMessage("closeWithError");
worker.onerror = function(event) {
t.done()
};
}, 'Test errors are delivered after close.');
async_test(function(t) {
var worker = new Worker('support/WorkerGlobalScope-close.js');
worker.postMessage("closeWithPendingEvents");
worker.onmessage = t.step_func(function(evt) {
assert_unreached("Pending events should not fire: " + evt.data);
});
worker.onerror = t.step_func(function(evt) {
assert_unreached("Pending events should not fire:" + evt.message);
});
t.step_timeout(function() { t.done(); }, 500);
}, 'Test workers do not deliver pending events.');
async_test(function(t) {
var worker = new Worker('support/WorkerGlobalScope-close.js');
worker.postMessage("close");
worker.onmessage = function(evt) {
assert_equals(evt.data, "Should be delivered");
// Give worker a chance to close first, then terminate it.
t.step_timeout(function() {
worker.terminate();
t.done();
}, 500);
};
}, 'Test terminating a worker after close.');
</script>