rsxjs/__tests__/integration/channel/test-close.js

Resilience Extensions for JS.

/**
 * @file tests/channel/test-close.js
 * @copyright 2018-present Karim Alibhai. All rights reserved.
 */

import { test } from "../../helpers";

import { makeChan } from "../../../";

test("should not be able to read/write on a closed channel", async (t) => {
  const c = makeChan();
  c.close();

  t.deepEqual(await c.put(0), { ok: false });
  t.deepEqual(await c.take(), { ok: false });
});

test("should be able to read off a closed channel with an unflushed buffer", async (t) => {
  const c = makeChan({ bufferSize: 2 });
  t.deepEqual(await c.put("a"), { ok: true });
  t.deepEqual(await c.put("b"), { ok: true });
  c.close();

  t.deepEqual(await c.take(), { ok: true, value: "a" });
  t.deepEqual(await c.take(), { ok: true, value: "b" });

  t.deepEqual(await c.put(0), { ok: false });
  t.deepEqual(await c.take(), { ok: false });
});