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60 lines
2.5 KiB
TypeScript
60 lines
2.5 KiB
TypeScript
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/*
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Copyright 2023 The Matrix.org Foundation C.I.C.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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import { WorkerManager } from "../src/WorkerManager";
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describe("WorkerManager", () => {
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it("should generate consecutive sequence numbers for each call", () => {
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const postMessage = jest.fn();
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const manager = new WorkerManager(jest.fn(() => ({ postMessage } as unknown as Worker)));
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manager.call({ data: "One" });
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manager.call({ data: "Two" });
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manager.call({ data: "Three" });
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const one = postMessage.mock.calls.find((c) => c[0].data === "One")!;
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const two = postMessage.mock.calls.find((c) => c[0].data === "Two")!;
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const three = postMessage.mock.calls.find((c) => c[0].data === "Three")!;
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expect(one[0].seq).toBe(0);
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expect(two[0].seq).toBe(1);
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expect(three[0].seq).toBe(2);
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});
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it("should support resolving out of order", async () => {
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const postMessage = jest.fn();
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const worker = { postMessage } as unknown as Worker;
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const manager = new WorkerManager(jest.fn(() => worker));
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const oneProm = manager.call({ data: "One" });
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const twoProm = manager.call({ data: "Two" });
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const threeProm = manager.call({ data: "Three" });
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const one = postMessage.mock.calls.find((c) => c[0].data === "One")![0].seq;
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const two = postMessage.mock.calls.find((c) => c[0].data === "Two")![0].seq;
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const three = postMessage.mock.calls.find((c) => c[0].data === "Three")![0].seq;
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worker.onmessage!({ data: { seq: one, data: 1 } } as MessageEvent);
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await expect(oneProm).resolves.toEqual(expect.objectContaining({ data: 1 }));
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worker.onmessage!({ data: { seq: three, data: 3 } } as MessageEvent);
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await expect(threeProm).resolves.toEqual(expect.objectContaining({ data: 3 }));
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worker.onmessage!({ data: { seq: two, data: 2 } } as MessageEvent);
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await expect(twoProm).resolves.toEqual(expect.objectContaining({ data: 2 }));
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});
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});
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