29 lines
926 B
TypeScript
29 lines
926 B
TypeScript
import { AsyncResult } from "@fabric/core";
|
|
import { describe, expect, test } from "@fabric/testing";
|
|
import { UnexpectedError } from "../error/unexpected-error.ts";
|
|
import { Run } from "./run.ts";
|
|
|
|
describe("Run", () => {
|
|
describe("In Sequence", () => {
|
|
test("should pipe the results of multiple async functions", async () => {
|
|
const result = Run.seq(
|
|
() => AsyncResult.succeedWith(1),
|
|
(x) => AsyncResult.succeedWith(x + 1),
|
|
(x) => AsyncResult.succeedWith(x * 2),
|
|
);
|
|
|
|
expect(await result.unwrapOrThrow()).toEqual(4);
|
|
});
|
|
|
|
test("should return the first error if one of the functions fails", async () => {
|
|
const result = await Run.seq(
|
|
() => AsyncResult.succeedWith(1),
|
|
() => AsyncResult.failWith(new UnexpectedError()),
|
|
(x) => AsyncResult.succeedWith(x * 2),
|
|
).promise();
|
|
|
|
expect(result.isError()).toBe(true);
|
|
});
|
|
});
|
|
});
|