parallel-es/test/common/parallel/parallel-options.specs.ts

Simple parallelization for EcmaScript

import {validateOptions} from "../../../src/common/parallel/parallel-options";
describe("validateOptions", function () {
    it("does not throw for valid options", function () {
        validateOptions({
            maxDegreeOfParallelism: 1,
            maxValuesPerTask: 4,
            minValuesPerTask: 2
        });
    });

    it("throws if minValuesPerTask is less than maxValuesPerTask", function () {
        expect(() => validateOptions({
            maxValuesPerTask: 2,
            minValuesPerTask: 4
        })).toThrowError("Illegal parallel options: minValuesPerTask (4) must be equal or less than maxValuesPerTask (2).");
    });

    for (const option of ["maxDegreeOfParallelism", "maxValuesPerTask", "minValuesPerTask"]) {
        it(`throws if ${option} is not a number`, function () {
            expect(() => validateOptions({
                [option]: "2"
            })).toThrowError(`Illegal parallel options: ${option} (2) has to be an integer greater than zero`);
        });

        it(`throws if ${option} is not an integer`, function () {
            expect(() => validateOptions({
                [option]: 0.4
            })).toThrowError(`Illegal parallel options: ${option} (0.4) has to be an integer greater than zero`);
        });

        it(`throws if ${option} is zero`, function () {
            expect(() => validateOptions({
                [option]: 0
            })).toThrowError(`Illegal parallel options: ${option} (0) has to be an integer greater than zero`);
        });

        it(`throws if ${option} is negative`, function () {
            expect(() => validateOptions({
                [option]: -3
            })).toThrowError(`Illegal parallel options: ${option} (-3) has to be an integer greater than zero`);
        });
    }
});