Mirror: 🎩 A tiny but capable push & pull stream library for TypeScript and Flow
Add missing Close signal to takeUntil operator (#128)
authored by
Phil Pluckthun
and committed by
GitHub
2578f76c
cc88647f
+53
+52
src/__tests__/operators.test.ts
+52
src/__tests__/operators.test.ts
···
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expect(fnB).toHaveBeenCalledWith([0]);
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expect(fnA.mock.calls[0][0]).toBe(fnB.mock.calls[0][0]);
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});
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it('completes the source when no more sink is listening', () => {
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let onPush = () => {};
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const talkback = vi.fn();
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const source: Source<any> = operators.share(sink => {
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sink(start(talkback));
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onPush = () => {
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sink(push([0]));
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sink(push([1]));
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sink(SignalKind.End);
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};
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});
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const fnA = vi.fn();
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const fnB = vi.fn();
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sinks.forEach(fnA)(operators.take(1)(source));
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sinks.forEach(fnB)(operators.take(1)(source));
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onPush();
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expect(fnA).toHaveBeenCalledWith([0]);
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expect(fnB).toHaveBeenCalledWith([0]);
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expect(fnA.mock.calls[0][0]).toBe(fnB.mock.calls[0][0]);
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expect(talkback).toHaveBeenCalledWith(TalkbackKind.Close);
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});
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});
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describe('skip', () => {
···
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notify(null);
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expect(fn).toHaveBeenCalledTimes(3);
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expect(fn.mock.calls[2][0]).toEqual(SignalKind.End);
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});
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it('emits values until a notifier emits', () => {
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const { source: input$, next } = sources.makeSubject<number>();
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const fn = vi.fn();
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let hasClosed = false;
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operators.takeUntil(sink => {
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sink(
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start(talkback => {
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if (talkback === TalkbackKind.Close) {
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hasClosed = true;
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} else if (talkback === TalkbackKind.Pull && !hasClosed) {
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sink(push(1));
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}
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})
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);
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})(input$)(fn);
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next(1);
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expect(fn).toHaveBeenCalledTimes(2);
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expect(fn.mock.calls).toEqual([[0], [start(expect.any(Function))]]);
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expect(hasClosed).toBe(true);
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});
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});
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