@dasch-swiss/dsp-js/src/api/operators/retryOnError.spec.js

JavaScript library that handles API requests to Knora

import { of } from "rxjs";
import { switchMap } from "rxjs";
import { TestScheduler } from "rxjs/testing";
import { retryOnError } from "./retryOnError";
describe("RetryOnError Operator", function () {
    var scheduler;
    // https://stackoverflow.com/questions/57406445/rxjs-marble-testing-retrywhen
    var createRetryableStream = function () {
        var _a;
        var obs$ = [];
        for (var _i = 0; _i < arguments.length; _i++) {
            obs$[_i] = arguments[_i];
        }
        var http = jasmine.createSpy("http");
        (_a = http.and).returnValues.apply(_a, obs$);
        return of(undefined).pipe(switchMap(function () { return http(); }));
    };
    beforeEach(function () {
        scheduler = new TestScheduler(function (actual, expected) {
            expect(actual).toEqual(expected);
        });
    });
    it("should get a completed response", function () {
        scheduler.run(function (_a) {
            var cold = _a.cold, expectObservable = _a.expectObservable;
            var values = { a: 20 };
            var source$ = createRetryableStream(cold("a|", values));
            var expectedMarble = "a|";
            var expectedValues = { a: 20 };
            var result$ = source$.pipe(retryOnError(1, 1, [0], true));
            expectObservable(result$).toBe(expectedMarble, expectedValues);
        });
    });
    it("should get a completed response after 1 unsuccessful request", function () {
        scheduler.run(function (_a) {
            var cold = _a.cold, expectObservable = _a.expectObservable;
            var values = { a: 20 };
            var ajaxError = { status: 0 };
            var source$ = createRetryableStream(cold("#", undefined, ajaxError), cold("a|", values));
            var expectedMarble = "-a|";
            var expectedValues = { a: 20 };
            var result$ = source$.pipe(retryOnError(1, 1, [0], true));
            expectObservable(result$).toBe(expectedMarble, expectedValues);
        });
    });
    it("should get an error after 2 unsuccessful requests", function () {
        scheduler.run(function (_a) {
            var cold = _a.cold, expectObservable = _a.expectObservable;
            var values = { a: 20 };
            var ajaxError = { status: 0 };
            var source$ = createRetryableStream(cold("#", undefined, ajaxError), cold("#", undefined, ajaxError), cold("a|", values));
            var expectedMarble = "-#";
            var result$ = source$.pipe(retryOnError(1, 1, [0], true));
            expectObservable(result$).toBe(expectedMarble, undefined, ajaxError);
        });
    });
    it("should not retry on certain error status", function () {
        scheduler.run(function (_a) {
            var cold = _a.cold, expectObservable = _a.expectObservable;
            var ajaxError = { status: 400 };
            var source$ = createRetryableStream(cold("#", undefined, ajaxError), cold("#", undefined, ajaxError));
            var expectedMarble = "#";
            var result$ = source$.pipe(retryOnError(1, 1, [0], true));
            expectObservable(result$).toBe(expectedMarble, undefined, ajaxError);
        });
    });
});
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