70 lines
2.2 KiB
TypeScript
70 lines
2.2 KiB
TypeScript
import { of, throwError } from 'rxjs';
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import { mergeMap, tap } from 'rxjs/operators';
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import { docRegionDefault } from './retry-on-error';
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describe('retry-on-error', () => {
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let mockConsole;
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beforeEach(() => mockConsole = { log: jasmine.createSpy('log') });
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it('should return the response object', () => {
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const ajax = () => of({ response: { foo: 'bar' } });
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docRegionDefault(mockConsole, ajax);
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expect(mockConsole.log.calls.allArgs()).toEqual([
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['data: ', { foo: 'bar' }],
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]);
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});
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it('should return an empty array after 3 retries + 1 initial request', () => {
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const ajax = () => {
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return of({ noresponse: true }).pipe(tap(() => mockConsole.log('Subscribed to AJAX')));
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};
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docRegionDefault(mockConsole, ajax);
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expect(mockConsole.log.calls.allArgs()).toEqual([
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['Subscribed to AJAX'],
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['Error occurred.'],
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['Subscribed to AJAX'],
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['Error occurred.'],
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['Subscribed to AJAX'],
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['Error occurred.'],
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['Subscribed to AJAX'],
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['Error occurred.'],
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['data: ', []],
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]);
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});
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it('should return the response if the request succeeds upon retrying', () => {
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// Fail on the first two requests, but succeed from the 3rd onwards.
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let failCount = 2;
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const ajax = () => of(null).pipe(
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tap(() => mockConsole.log('Subscribed to AJAX')),
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// Fail on the first 2 requests, but succeed from the 3rd onwards.
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mergeMap(() => {
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if (failCount > 0) {
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failCount--;
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return throwError('Test error');
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}
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return of({ response: { foo: 'bar' } });
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}),
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);
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docRegionDefault(mockConsole, ajax);
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expect(mockConsole.log.calls.allArgs()).toEqual([
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['Subscribed to AJAX'], // Initial request | 1st attempt overall
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['Subscribed to AJAX'], // 1st retry attempt | 2nd attempt overall
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['Subscribed to AJAX'], // 2nd retry attempt | 3rd attempt overall
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['data: ', { foo: 'bar' }],
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]);
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});
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it('should return an empty array when the ajax observable throws an error', () => {
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const ajax = () => throwError('Test Error');
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docRegionDefault(mockConsole, ajax);
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expect(mockConsole.log.calls.allArgs()).toEqual([
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['data: ', []],
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]);
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});
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});
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