ulthar-framework/packages/fabric/core/run/run.test.ts

29 lines
836 B
TypeScript

import { Effect } 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 = await Run.seq(
() => Effect.ok(1),
(x) => Effect.ok(x + 1),
(x) => Effect.ok(x * 2),
);
expect(result.unwrapOrThrow()).toEqual(4);
});
test("should return the first error if one of the functions fails", async () => {
const result = await Run.seq(
() => Effect.ok(1),
() => Effect.failWith(new UnexpectedError()),
(x) => Effect.ok(x * 2),
);
expect(result.isError()).toBe(true);
});
});
});