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chore: update ignoreElements tests to run mode #5952

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merged 1 commit into from Jan 16, 2021
Merged

chore: update ignoreElements tests to run mode #5952

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128 changes: 75 additions & 53 deletions spec/operators/ignoreElements-spec.ts
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@@ -1,79 +1,101 @@
/** @prettier */
import { ignoreElements, mergeMap } from 'rxjs/operators';
import { hot, cold, expectObservable, expectSubscriptions } from '../helpers/marble-testing';
import { TestScheduler } from 'rxjs/testing';
import { of } from 'rxjs';
import { observableMatcher } from '../helpers/observableMatcher';

/** @test {ignoreElements} */
describe('ignoreElements operator', () => {
it('should ignore all the elements of the source', () => {
const source = hot('--a--b--c--d--|');
const subs = '^ !';
const expected = '--------------|';
describe('ignoreElements', () => {
let testScheduler: TestScheduler;

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

expectObservable(source.pipe(ignoreElements())).toBe(expected);
expectSubscriptions(source.subscriptions).toBe(subs);
it('should ignore all the elements of the source', () => {
testScheduler.run(({ hot, expectObservable, expectSubscriptions }) => {
const e1 = hot(' --a--b--c--d--|');
const e1subs = ' ^-------------!';
const expected = '--------------|';

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

it('should allow unsubscribing early and explicitly', () => {
const source = hot('--a--b--c--d--|');
const subs = '^ ! ';
const expected = '-------- ';
const unsub = ' ! ';
testScheduler.run(({ hot, expectObservable, expectSubscriptions }) => {
const e1 = hot(' --a--b--c--d--|');
const e1subs = ' ^------! ';
const expected = '-------- ';
const unsub = ' -------! ';

const result = source.pipe(ignoreElements());
const result = e1.pipe(ignoreElements());

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

it('should allow unsubscribing early and explicitly', () => {
const source = hot('--a--b--c--d--|');
const subs = '^ ! ';
const expected = '-------- ';
const unsub = ' ! ';

const result = source.pipe(
mergeMap((x: string) => of(x)),
ignoreElements(),
mergeMap((x: string) => of(x))
);

expectObservable(result, unsub).toBe(expected);
expectSubscriptions(source.subscriptions).toBe(subs);
it('should allow unsubscribing early and explicitly with higher order', () => {
testScheduler.run(({ hot, expectObservable, expectSubscriptions }) => {
const e1 = hot(' --a--b--c--d--|');
const e1subs = ' ^------! ';
const expected = '-------- ';
const unsub = ' -------! ';

const result = e1.pipe(
mergeMap((x) => of(x)),
ignoreElements(),
mergeMap((x) => of(x))
);

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

it('should propagate errors from the source', () => {
const source = hot('--a--#');
const subs = '^ !';
const expected = '-----#';

expectObservable(source.pipe(ignoreElements())).toBe(expected);
expectSubscriptions(source.subscriptions).toBe(subs);
testScheduler.run(({ hot, expectObservable, expectSubscriptions }) => {
const e1 = hot(' --a--#');
const e1subs = ' ^----!';
const expected = '-----#';

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

it('should support Observable.empty', () => {
const source = cold('|');
const subs = '(^!)';
const expected = '|';
it('should handle empty', () => {
testScheduler.run(({ cold, expectObservable, expectSubscriptions }) => {
const e1 = cold(' | ');
const e1subs = ' (^!)';
const expected = '| ';

expectObservable(source.pipe(ignoreElements())).toBe(expected);
expectSubscriptions(source.subscriptions).toBe(subs);
expectObservable(e1.pipe(ignoreElements())).toBe(expected);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
});
});

it('should support Observable.never', () => {
const source = cold('-');
const subs = '^';
const expected = '-';
it('should handle never', () => {
testScheduler.run(({ cold, expectObservable, expectSubscriptions }) => {
const e1 = cold(' -');
const e1subs = ' ^';
const expected = '-';

expectObservable(source.pipe(ignoreElements())).toBe(expected);
expectSubscriptions(source.subscriptions).toBe(subs);
expectObservable(e1.pipe(ignoreElements())).toBe(expected);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
});
});

it('should support Observable.throw', () => {
const source = cold('#');
const subs = '(^!)';
const expected = '#';
it('should handle throw', () => {
testScheduler.run(({ cold, expectObservable, expectSubscriptions }) => {
const e1 = cold(' # ');
const e1subs = ' (^!)';
const expected = '# ';

expectObservable(source.pipe(ignoreElements())).toBe(expected);
expectSubscriptions(source.subscriptions).toBe(subs);
expectObservable(e1.pipe(ignoreElements())).toBe(expected);
expectSubscriptions(e1.subscriptions).toBe(e1subs);
});
});
});