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cartant merged 1 commit into from
Nov 11, 2020
Merged

chore: update auditTime tests #5892

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153 changes: 89 additions & 64 deletions spec/operators/auditTime-spec.ts
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Original file line number Diff line number Diff line change
@@ -1,166 +1,191 @@
/** @prettier */
import { expect } from 'chai';
import { of, concat, timer } from 'rxjs';
import { auditTime, take, map, mergeMap } from 'rxjs/operators';
import { of } from 'rxjs';
import { auditTime, mergeMap } from 'rxjs/operators';
import { TestScheduler } from 'rxjs/testing';
import { observableMatcher } from '../helpers/observableMatcher';

/** @test {auditTime} */
describe('auditTime operator', () => {
describe('auditTime', () => {
let testScheduler: TestScheduler;

beforeEach(() => {
testScheduler = new TestScheduler(observableMatcher);
});

it('should emit the last value in each time window', () => {
testScheduler.run(({ hot, expectObservable, expectSubscriptions }) => {
testScheduler.run(({ hot, time, expectObservable, expectSubscriptions }) => {
const e1 = hot(' -a-x-y----b---x-cx---|');
const subs = ' ^--------------------!';
const e1subs = ' ^--------------------!';
const t = time(' -----| ');
// -----|
// -----|
const expected = '------y--------x-----(x|)';

const result = e1.pipe(auditTime(5, testScheduler));
const result = e1.pipe(auditTime(t));

expectObservable(result).toBe(expected);
expectSubscriptions(e1.subscriptions).toBe(subs);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
});
});

it('should auditTime events by 5 time units', (done: MochaDone) => {
const expected = 3;
of(1, 2, 3).pipe(
auditTime(5)
).subscribe((x: number) => {
of(1, 2, 3)
.pipe(auditTime(5))
.subscribe((x: number) => {
expect(x).to.equal(expected);
done();
});
});

it('should auditTime events multiple times', () => {
testScheduler.run(({ hot, expectObservable, expectSubscriptions }) => {
testScheduler.run(({ hot, time, expectObservable, expectSubscriptions }) => {
const e1 = hot(' -012-----01234---|');
const subs = ' ^----------------!';
const e1subs = ' ^----------------!';
const t = time(' -----| ');
// -----|
const expected = '------2-------4--|';

expectObservable(e1.pipe(auditTime(5, testScheduler))).toBe(expected);
expectSubscriptions(e1.subscriptions).toBe(subs);
expectObservable(e1.pipe(auditTime(t))).toBe(expected);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
});
});

it('should delay the source if values are not emitted often enough', () => {
testScheduler.run(({ hot, expectObservable, expectSubscriptions }) => {
testScheduler.run(({ hot, time, expectObservable, expectSubscriptions }) => {
const e1 = hot(' -a--------b-----c----|');
const subs = ' ^--------------------!';
const e1subs = ' ^--------------------!';
const t = time(' -----| ');
// -----|
// -----|
const expected = '------a--------b-----(c|)';

expectObservable(e1.pipe(auditTime(5, testScheduler))).toBe(expected);
expectSubscriptions(e1.subscriptions).toBe(subs);
expectObservable(e1.pipe(auditTime(t))).toBe(expected);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
});
});

it('should handle a busy producer emitting a regular repeating sequence', () => {
testScheduler.run(({ hot, expectObservable, expectSubscriptions }) => {
testScheduler.run(({ hot, time, expectObservable, expectSubscriptions }) => {
const e1 = hot(' abcdefabcdefabcdefabcdefa|');
const subs = ' ^------------------------!';
const e1subs = ' ^------------------------!';
const t = time(' -----| ');
// -----|
// -----|
// -----|
// -----|
const expected = '-----f-----f-----f-----f-----(a|)';

expectObservable(e1.pipe(auditTime(5, testScheduler))).toBe(expected);
expectSubscriptions(e1.subscriptions).toBe(subs);
expectObservable(e1.pipe(auditTime(t))).toBe(expected);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
});
});

it('should complete when source does not emit', () => {
testScheduler.run(({ hot, expectObservable, expectSubscriptions }) => {
testScheduler.run(({ hot, time, expectObservable, expectSubscriptions }) => {
const e1 = hot(' -----|');
const subs = ' ^----!';
const e1subs = ' ^----!';
const t = time(' --| ');
const expected = '-----|';

expectObservable(e1.pipe(auditTime(5, testScheduler))).toBe(expected);
expectSubscriptions(e1.subscriptions).toBe(subs);
expectObservable(e1.pipe(auditTime(t))).toBe(expected);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
});
});

it('should raise error when source does not emit and raises error', () => {
testScheduler.run(({ hot, expectObservable, expectSubscriptions }) => {
testScheduler.run(({ hot, time, expectObservable, expectSubscriptions }) => {
const e1 = hot(' -----#');
const subs = ' ^----!';
const e1subs = ' ^----!';
const t = time(' --| ');
const expected = '-----#';

expectObservable(e1.pipe(auditTime(1, testScheduler))).toBe(expected);
expectSubscriptions(e1.subscriptions).toBe(subs);
expectObservable(e1.pipe(auditTime(t))).toBe(expected);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
});
});

it('should handle an empty source', () => {
testScheduler.run(({ cold, expectObservable, expectSubscriptions }) => {
const e1 = cold(' |');
const subs = ' (^!)';
const expected = '|';

expectObservable(e1.pipe(auditTime(3, testScheduler))).toBe(expected);
expectSubscriptions(e1.subscriptions).toBe(subs);
testScheduler.run(({ cold, time, expectObservable, expectSubscriptions }) => {
const e1 = cold(' | ');
const e1subs = ' (^!)';
const t = time(' ---|');
const expected = '| ';

expectObservable(e1.pipe(auditTime(t))).toBe(expected);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
});
});

it('should handle a never source', () => {
testScheduler.run(({ cold, expectObservable, expectSubscriptions }) => {
const e1 = cold(' -');
const subs = ' ^';
const expected = '-';

expectObservable(e1.pipe(auditTime(3, testScheduler))).toBe(expected);
expectSubscriptions(e1.subscriptions).toBe(subs);
testScheduler.run(({ cold, time, expectObservable, expectSubscriptions }) => {
const e1 = cold(' - ');
const e1subs = ' ^ ';
const t = time(' --|');
const expected = '- ';

expectObservable(e1.pipe(auditTime(t))).toBe(expected);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
});
});

it('should handle a throw source', () => {
testScheduler.run(({ cold, expectObservable, expectSubscriptions }) => {
const e1 = cold(' #');
const subs = ' (^!)';
const expected = '#';

expectObservable(e1.pipe(auditTime(3, testScheduler))).toBe(expected);
expectSubscriptions(e1.subscriptions).toBe(subs);
testScheduler.run(({ cold, time, expectObservable, expectSubscriptions }) => {
const e1 = cold(' # ');
const e1subs = ' (^!)';
const t = time(' ---|');
const expected = '# ';

expectObservable(e1.pipe(auditTime(t))).toBe(expected);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
});
});

it('should not complete when source does not complete', () => {
testScheduler.run(({ hot, expectObservable, expectSubscriptions }) => {
testScheduler.run(({ hot, time, expectObservable, expectSubscriptions }) => {
const e1 = hot(' -a--(bc)-------d----------------');
const unsub = ' -------------------------------!';
const subs = ' ^------------------------------!';
const e1subs = ' ^------------------------------!';
const t = time(' -----| ');
// -----|
const expected = '------c-------------d-----------';
const unsub = ' -------------------------------!';

expectObservable(e1.pipe(auditTime(5, testScheduler)), unsub).toBe(expected);
expectSubscriptions(e1.subscriptions).toBe(subs);
expectObservable(e1.pipe(auditTime(t)), unsub).toBe(expected);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
});
});

it('should not break unsubscription chains when result is unsubscribed explicitly', () => {
testScheduler.run(({ hot, expectObservable, expectSubscriptions }) => {
testScheduler.run(({ hot, time, expectObservable, expectSubscriptions }) => {
const e1 = hot(' -a--(bc)-------d----------------');
const subs = ' ^------------------------------!';
const e1subs = ' ^------------------------------!';
const t = time(' -----| ');
// -----|
const expected = '------c-------------d-----------';
const unsub = ' -------------------------------!';

const result = e1.pipe(
mergeMap((x: string) => of(x)),
auditTime(5, testScheduler),
auditTime(t),
mergeMap((x: string) => of(x))
);

expectObservable(result, unsub).toBe(expected);
expectSubscriptions(e1.subscriptions).toBe(subs);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
});
});

it('should auditTime values until source raises error', () => {
testScheduler.run(({ hot, expectObservable, expectSubscriptions }) => {
testScheduler.run(({ hot, time, expectObservable, expectSubscriptions }) => {
const e1 = hot(' -a--(bc)-------d---------------#');
const subs = ' ^------------------------------!';
const e1subs = ' ^------------------------------!';
const t = time(' -----| ');
// -----|
const expected = '------c-------------d----------#';

expectObservable(e1.pipe(auditTime(5, testScheduler))).toBe(expected);
expectSubscriptions(e1.subscriptions).toBe(subs);
expectObservable(e1.pipe(auditTime(t))).toBe(expected);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
});
});
});