parallel-es/test/common/parallel/stream/resolved-parallel-stream.specs.ts

Simple parallelization for EcmaScript

import {ResolvedParallelStream} from "../../../../src/common/parallel/stream/resolved-parallel-stream";
describe("ResolvedParallelStream", function () {

    describe("subscribe", function () {
        it("invokes the complete handler with the value passed in the constructor", function (done) {
            // arrange
            const stream = new ResolvedParallelStream<string, string>("abcd");

            // act
            stream.subscribe(() => undefined, done.fail, result => {
                expect(result).toEqual("abcd");
                done();
            });
        });
    });

    describe("then", function () {
        it("invokes the then handler and not the rejected handler", function (done) {
            // arrange
            const stream = new ResolvedParallelStream<string, string>("abcd");

            // act
            stream.then(done).catch(() => done.fail("a resolved stream can never fail"));
        });
    });

    describe("catch", function () {
        it("does not invoke the catch handler", function (done) {
            // arrange
            const stream = new ResolvedParallelStream<string, string>("abcd");

            // act
            stream.catch(() => done.fail("a resolved stream can never fail"));
            stream.then(done);
        });
    });
});