rsxjs/__tests__/unit/test-lists.js

Resilience Extensions for JS.

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

import { v4 as uuid } from "uuid";

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

test("should be able to act as a queue (LTR)", async (t) => {
  const store = new MemoryStore();
  const listName = `testList:${uuid()}`;

  await store.lpush(listName, "a");
  await store.lpush(listName, "b");
  await store.lpush(listName, "c");
  await store.lpush(listName, "d");

  t.is(await store.rpop(listName), "a");
  t.is(await store.rpop(listName), "b");
  t.is(await store.rpop(listName), "c");
  t.is(await store.rpop(listName), "d");

  await store.del(listName);
});

test("should be able to act as a queue (RTL)", async (t) => {
  const store = new MemoryStore();
  const listName = `testList:${uuid()}`;

  await store.rpush(listName, "a");
  await store.rpush(listName, "b");
  await store.rpush(listName, "c");
  await store.rpush(listName, "d");

  t.is(await store.lpop(listName), "a");
  t.is(await store.lpop(listName), "b");
  t.is(await store.lpop(listName), "c");
  t.is(await store.lpop(listName), "d");

  await store.del(listName);
});

test("should be able to act as a stack (LTL)", async (t) => {
  const store = new MemoryStore();
  const listName = `testList:${uuid()}`;

  await store.lpush(listName, "a");
  await store.lpush(listName, "b");
  await store.lpush(listName, "c");
  await store.lpush(listName, "d");

  t.is(await store.lpop(listName), "d");
  t.is(await store.lpop(listName), "c");
  t.is(await store.lpop(listName), "b");
  t.is(await store.lpop(listName), "a");

  await store.del(listName);
});

test("should be able to act as a stack (RTR)", async (t) => {
  const store = new MemoryStore();
  const listName = `testList:${uuid()}`;

  await store.rpush(listName, "a");
  await store.rpush(listName, "b");
  await store.rpush(listName, "c");
  await store.rpush(listName, "d");

  t.is(await store.rpop(listName), "d");
  t.is(await store.rpop(listName), "c");
  t.is(await store.rpop(listName), "b");
  t.is(await store.rpop(listName), "a");

  await store.del(listName);
});