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<script>
function ok(a, msg) {
parent.postMessage({ type: "check", status: !!a, message: msg }, "*");
}
function is(a, b, msg) {
ok(a === b, msg);
}
function testWebIDL() {
ok("FetchController" in self, "We have a FetchController prototype");
ok("FetchSignal" in self, "We have a FetchSignal prototype");
var fc = new FetchController();
ok(!!fc, "FetchController can be created");
ok(fc instanceof FetchController, "FetchController is a FetchController");
ok(!!fc.signal, "FetchController has a signal");
ok(fc.signal instanceof FetchSignal, "fetchSignal is a FetchSignal");
is(fc.signal.aborted, false, "By default FetchSignal.aborted is false");
next();
}
function testUpdateData() {
var fc = new FetchController();
is(fc.signal.aborted, false, "By default FetchSignal.aborted is false");
fc.abort();
is(fc.signal.aborted, true, "Signal is aborted");
next();
}
function testFollowingOurself() {
// Let's follow ourself
var fc = new FetchController();
fc.follow(fc.signal);
fc.abort();
is(fc.signal.aborted, true, "Signal is aborted");
next();
}
function testFollowingOther() {
// Let's follow another one
var fc1 = new FetchController();
var fc2 = new FetchController();
fc1.follow(fc2.signal);
fc2.abort();
is(fc1.signal.aborted, true, "Signal is aborted");
is(fc2.signal.aborted, true, "Signal is aborted");
next();
}
function testFollowingLoop() {
// fc1 -> fc2 -> fc3 -> fc1
var fc1 = new FetchController();
var fc2 = new FetchController();
var fc3 = new FetchController();
fc1.follow(fc2.signal);
fc2.follow(fc3.signal);
fc3.follow(fc1.signal);
fc3.abort();
is(fc1.signal.aborted, true, "Signal is aborted");
is(fc2.signal.aborted, true, "Signal is aborted");
is(fc3.signal.aborted, true, "Signal is aborted");
next();
}
function testAbortEvent() {
var fc = new FetchController();
fc.signal.onabort = function(e) {
is(e.type, "abort", "Abort received");
next();
}
fc.abort();
}
function testAbortedFetch() {
var fc = new FetchController();
fc.abort();
fetch('slow.sjs', { signal: fc.signal }).then(() => {
ok(false, "Fetch should not return a resolved promise");
}, e => {
is(e.name, "AbortError", "We have an abort error");
}).then(next);
}
function testFetchAndAbort() {
var fc = new FetchController();
var p = fetch('slow.sjs', { signal: fc.signal });
fc.abort();
p.then(() => {
ok(false, "Fetch should not return a resolved promise");
}, e => {
is(e.name, "AbortError", "We have an abort error");
}).then(next);
}
function testWorkerAbortedFetch() {
var w = new Worker('worker_fetch_controller.js');
w.onmessage = function(e) {
ok(e.data, "Abort + Fetch works in workers");
next();
}
w.postMessage('testWorkerAbortedFetch');
}
function testWorkerFetchAndAbort() {
var w = new Worker('worker_fetch_controller.js');
w.onmessage = function(e) {
ok(e.data, "Abort + Fetch works in workers");
next();
}
w.postMessage('testWorkerFetchAndAbort');
}
var steps = [
// Simple stuff
testWebIDL,
testUpdateData,
// Following algorithm
testFollowingOurself,
testFollowingOther,
testFollowingLoop,
// Event propagation
testAbortEvent,
// fetch + signaling
testAbortedFetch,
testFetchAndAbort,
testWorkerAbortedFetch,
testWorkerFetchAndAbort,
];
function next() {
if (!steps.length) {
parent.postMessage({ type: "finish" }, "*");
return;
}
var step = steps.shift();
step();
}
next();
</script>
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