// META: title=FileAPI Test: filereader_abort | |
test(function() { | |
var readerNoRead = new FileReader(); | |
readerNoRead.abort(); | |
assert_equals(readerNoRead.readyState, readerNoRead.EMPTY); | |
assert_equals(readerNoRead.result, null); | |
}, "Aborting before read"); | |
promise_test(t => { | |
var blob = new Blob(["TEST THE ABORT METHOD"]); | |
var readerAbort = new FileReader(); | |
var eventWatcher = new EventWatcher(t, readerAbort, | |
['abort', 'loadstart', 'loadend', 'error', 'load']); | |
// EventWatcher doesn't let us inspect the state after the abort event, | |
// so add an extra event handler for that. | |
readerAbort.addEventListener('abort', t.step_func(e => { | |
assert_equals(readerAbort.readyState, readerAbort.DONE); | |
})); | |
readerAbort.readAsText(blob); | |
return eventWatcher.wait_for('loadstart') | |
.then(() => { | |
assert_equals(readerAbort.readyState, readerAbort.LOADING); | |
// 'abort' and 'loadend' events are dispatched synchronously, so | |
// call wait_for before calling abort. | |
var nextEvent = eventWatcher.wait_for(['abort', 'loadend']); | |
readerAbort.abort(); | |
return nextEvent; | |
}) | |
.then(() => { | |
// https://www.w3.org/Bugs/Public/show_bug.cgi?id=24401 | |
assert_equals(readerAbort.result, null); | |
assert_equals(readerAbort.readyState, readerAbort.DONE); | |
}); | |
}, "Aborting after read"); |