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// SPDX-License-Identifier: MIT OR LGPL-2.0-or-later
// SPDX-FileCopyrightText: 2021 Evan Welsh <contact@evanwelsh.com>
import GLib from 'gi://GLib';
import GObject from 'gi://GObject';
const PRIORITIES = [
'PRIORITY_LOW',
'PRIORITY_HIGH',
'PRIORITY_DEFAULT',
'PRIORITY_HIGH_IDLE',
'PRIORITY_DEFAULT_IDLE',
];
describe('Async microtasks resolves before', function () {
// Generate test suites with different types of Sources
const tests = [
{
description: 'idle task with',
createSource: () => GLib.idle_source_new(),
},
{
description: '0-second timeout task with',
// A timeout of 0 tests if microtasks (promises) run before
// non-idle tasks which would normally execute "next" in the loop
createSource: () => GLib.timeout_source_new(0),
},
];
for (const {description, createSource} of tests) {
describe(description, function () {
const CORRECT_TASKS = [
'async 1',
'async 2',
'source task',
];
for (const priority of PRIORITIES) {
it(`priority set to GLib.${priority}`, function (done) {
const tasks = [];
const source = createSource();
source.set_priority(GLib[priority]);
GObject.source_set_closure(source, () => {
tasks.push('source task');
expect(tasks).toEqual(jasmine.arrayWithExactContents(CORRECT_TASKS));
done();
source.destroy();
return GLib.SOURCE_REMOVE;
});
source.attach(null);
(async () => {
// Without an await async functions execute
// synchronously
tasks.push(await 'async 1');
})().then(() => {
tasks.push('async 2');
});
});
}
});
}
});
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