Retry outbound reactions for up to a day

ts/test-node/jobs/helpers/InMemoryQueues_test.ts

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+// Copyright 2021 Signal Messenger, LLC
+// SPDX-License-Identifier: AGPL-3.0-only
+
+import { assert } from 'chai';
+
+import { InMemoryQueues } from '../../../jobs/helpers/InMemoryQueues';
+
+describe('InMemoryQueues', () => {
+  describe('get', () => {
+    it('returns a new PQueue for each key', () => {
+      const queues = new InMemoryQueues();
+
+      assert.strictEqual(queues.get('a'), queues.get('a'));
+      assert.notStrictEqual(queues.get('a'), queues.get('b'));
+      assert.notStrictEqual(queues.get('b'), queues.get('c'));
+    });
+
+    it('returns a queue that only executes one thing at a time', () => {
+      const queue = new InMemoryQueues().get('foo');
+
+      assert.strictEqual(queue.concurrency, 1);
+    });
+
+    it('cleans up the queues when all tasks have run', async () => {
+      const queues = new InMemoryQueues();
+
+      const originalQueue = queues.get('foo');
+
+      originalQueue.pause();
+      const tasksPromise = originalQueue.addAll([
+        async () => {
+          assert.strictEqual(queues.get('foo'), originalQueue);
+        },
+        async () => {
+          assert.strictEqual(queues.get('foo'), originalQueue);
+        },
+      ]);
+      originalQueue.start();
+      await tasksPromise;
+
+      assert.notStrictEqual(queues.get('foo'), originalQueue);
+    });
+  });
+});