vitest-marbles
Version:
Marble testing helpers library for RxJs and Jest
56 lines • 2.08 kB
JavaScript
import { ColdObservable } from './src/rxjs/cold-observable';
import { HotObservable } from './src/rxjs/hot-observable';
import { Scheduler } from './src/rxjs/scheduler';
import { stripAlignmentChars } from './src/rxjs/strip-alignment-chars';
export { Scheduler } from './src/rxjs/scheduler';
export function hot(marbles, values, error) {
return new HotObservable(stripAlignmentChars(marbles), values, error);
}
export function cold(marbles, values, error) {
return new ColdObservable(stripAlignmentChars(marbles), values, error);
}
export function time(marbles) {
return Scheduler.get().createTime(stripAlignmentChars(marbles));
}
const dummyResult = {
message: () => '',
pass: true
};
expect.extend({
toHaveSubscriptions(actual, marbles) {
const sanitizedMarbles = Array.isArray(marbles) ? marbles.map(stripAlignmentChars) : stripAlignmentChars(marbles);
Scheduler.get().expectSubscriptions(actual.getSubscriptions()).toBe(sanitizedMarbles);
return dummyResult;
},
toHaveNoSubscriptions(actual) {
Scheduler.get().expectSubscriptions(actual.getSubscriptions()).toBe([]);
return dummyResult;
},
toBeObservable(actual, expected) {
Scheduler.get().expectObservable(actual).toBe(expected.marbles, expected.values, expected.error);
return dummyResult;
},
toBeMarble(actual, marbles) {
Scheduler.get().expectObservable(actual).toBe(stripAlignmentChars(marbles));
return dummyResult;
},
toSatisfyOnFlush(actual, func) {
Scheduler.get().expectObservable(actual);
// tslint:disable:no-string-literal
const flushTests = Scheduler.get()['flushTests'];
flushTests[flushTests.length - 1].ready = true;
onFlush.push(func);
return dummyResult;
}
});
let onFlush = [];
beforeEach(() => { Scheduler.init(); onFlush = []; });
afterEach(() => {
Scheduler.get().flush();
while (onFlush.length > 0) {
// @ts-ignore
onFlush.shift()();
}
Scheduler.reset();
});
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