it('should paste when clicked', async () => {
const button = ToolbarItems.createPasteButton(panel);
const count = panel.content.widgets.length;
Widget.attach(button, document.body);
await framePromise();
NotebookActions.copy(panel.content);
(button.node.firstChild as HTMLElement).click();
await sleep();
expect(panel.content.widgets.length).to.equal(count + 1);
button.dispose();
});
it('should emit a tick identical to the poll state', async () => {
poll = new Poll<void, void>({
factory: () => Promise.resolve(),
frequency: { interval: 100, backoff: false },
name: '@jupyterlab/test-coreutils:Poll#ticked-3'
});
poll.ticked.connect((_, tick) => {
expect(tick).to.equal(poll.state);
});
await sleep(250);
});
it('should emit when the poll ticks after `when` resolves', async () => {
const expected = 'when-resolved resolved';
const ticker: IPoll.Phase[] = [];
poll = new Poll<void, void>({
factory: () => Promise.resolve(),
frequency: { interval: 2000, backoff: false },
name: '@jupyterlab/test-coreutils:Poll#ticked-1'
});
poll.ticked.connect(() => {
ticker.push(poll.state.phase);
});
await sleep(200); // Sleep for less than the interval.
expect(ticker.join(' ')).to.equal(expected);
});
it('should resolve after a tick', async () => {
poll = new Poll({
factory: () => Promise.resolve(),
frequency: { interval: 2000, backoff: false },
name: '@jupyterlab/test-coreutils:Poll#tick-1'
});
const expected = 'when-resolved resolved';
const ticker: IPoll.Phase[] = [];
const tock = (poll: IPoll) => {
ticker.push(poll.state.phase);
poll.tick.then(tock).catch(() => undefined);
};
void poll.tick.then(tock);
await sleep(200); // Sleep for less than the interval.
expect(ticker.join(' ')).to.equal(expected);
});
it('should resolve after the reveal and context ready promises', async () => {
const x = Object.create(null);
const reveal = sleep(300, x);
const contextReady = Promise.all([context.ready, x]);
const widget = new DocumentWidget({ context, content, reveal });
expect(widget.isRevealed).to.equal(false);
// Our promise should resolve before the widget reveal promise.
expect(await Promise.race([widget.revealed, reveal])).to.equal(x);
// The context ready promise should also resolve first.
context.initialize(true);
expect(
await Promise.race([widget.revealed, contextReady])
).to.deep.equal([undefined, x]);
// The widget.revealed promise should finally resolve.
expect(await widget.revealed).to.be.undefined;
});
it('should resolve after `ticked` emits in lock step', async () => {
poll = new Poll({
factory: () =>
Math.random() > 0.5 ? Promise.resolve() : Promise.reject(),
frequency: { interval: 0, backoff: false },
name: '@jupyterlab/test-coreutils:Poll#tick-2'
});
const ticker: IPoll.Phase[] = [];
const tocker: IPoll.Phase[] = [];
poll.ticked.connect(async (_, state) => {
ticker.push(state.phase);
expect(ticker.length).to.equal(tocker.length + 1);
});
const tock = async (poll: IPoll) => {
tocker.push(poll.state.phase);
expect(ticker.join(' ')).to.equal(tocker.join(' '));
poll.tick.then(tock).catch(() => undefined);
};
// Kick off the promise listener, but void its settlement to verify that
// the poll's internal sync of the promise and the signal is correct.
void poll.tick.then(tock);
await poll.stop();
await poll.start();
await poll.tick;
await poll.refresh();
await poll.tick;
await poll.refresh();
await poll.tick;
await poll.refresh();
await poll.tick;
await poll.stop();
await poll.start();
await poll.tick;
await sleep(100);
await poll.tick;
expect(ticker.join(' ')).to.equal(tocker.join(' '));
});