redioactive/dist/__tests__/errors.spec.js

Reactive streams for chaining overlapping promises.

"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
const redio_1 = __importStar(require("../redio"));
describe('Testing the flow or errors', () => {
    function genny(reject) {
        let counter = 0;
        return async () => {
            if (counter++ < 4) {
                // console.log('Bang', counter)
                // return Promise.reject('Should go bang')
                if (reject) {
                    return Promise.reject(`Bang reject ${counter}!`);
                }
                throw new Error(`Bang throw ${counter}!`);
            }
            else {
                return redio_1.end;
            }
        };
    }
    test('Throw and extract errors', async () => {
        const errors = jest.fn();
        await expect((0, redio_1.default)(genny(false))
            .errors((e) => {
            errors(e);
        })
            .toArray()).resolves.toEqual([]);
        expect(errors).toHaveBeenCalledTimes(4);
        expect(errors).toHaveBeenNthCalledWith(1, expect.objectContaining({ message: expect.stringContaining('Bang throw') }));
    });
    test('Reject and extract errors', async () => {
        const errors = jest.fn();
        await expect((0, redio_1.default)(genny(true))
            .errors((e) => {
            errors(e);
        })
            .toArray()).resolves.toEqual([]);
        expect(errors).toHaveBeenCalledTimes(4);
        expect(errors).toHaveBeenNthCalledWith(1, expect.objectContaining({ message: expect.stringContaining('Bang reject') }));
    });
    test('No errors does not call errors', async () => {
        const errors = jest.fn();
        await expect((0, redio_1.default)([1, 2, 3]).errors(errors).toArray()).resolves.toEqual([1, 2, 3]);
        expect(errors).not.toHaveBeenCalled();
    });
    test('Convert errors into values', async () => {
        const errors = (e) => e.message;
        await expect((0, redio_1.default)(genny(false)).errors(errors).toArray()).resolves.toEqual([
            'Bang throw 1!',
            'Bang throw 2!',
            'Bang throw 3!',
            'Bang throw 4!'
        ]);
    });
    test('Transform error with throw', async () => {
        const errors = (e) => new Error(`MORE ${e.message}`);
        await expect((0, redio_1.default)(genny(false)).errors(errors).toArray()).rejects.toThrow(/MORE Bang throw/);
    });
    test('Transform error with reject', async () => {
        const errors = (e) => new Error(`MORE ${e.message}`);
        await expect((0, redio_1.default)(genny(true)).errors(errors).toArray()).rejects.toThrow(/MORE Bang reject/);
    });
    test.skip('Catch errors downstream', async () => {
        const eachFn = jest.fn();
        const catchFn = jest.fn();
        await expect((0, redio_1.default)(genny(false)).errors(console.log).each(console.log).catch(catchFn).toPromise()).rejects.toBeTruthy();
        expect(eachFn).not.toHaveBeenCalled();
        expect(catchFn).toHaveBeenCalledTimes(4);
    });
});