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import { deepStrictEqual } from "assert";import { Encoder, Decoder, decode } from "@msgpack/msgpack";
const createStream = async function* (...args: any) {  for (const item of args) {    yield item;  }};
const N = 10;
describe("shared instances", () => {  context("encode() and decodeSync()", () => {    it("runs multiple times", () => {      const encoder = new Encoder();      const decoder = new Decoder();
      const object = {        nil: null,        integer: 1,        float: Math.PI,        string: "Hello, world!",        binary: Uint8Array.from([1, 2, 3]),        array: [10, 20, 30],        map: { foo: "bar" },        timestampExt: new Date(),      };
      for (let i = 0; i < N; i++) {        const encoded: Uint8Array = encoder.encode(object);        deepStrictEqual(decoder.decode(encoded), object, `#${i}`);      }    });  });
  context("encode() and decodeAsync()", () => {    it("runs multiple times", async () => {      const encoder = new Encoder();      const decoder = new Decoder();
      const object = {        nil: null,        integer: 1,        float: Math.PI,        string: "Hello, world!",        binary: Uint8Array.from([1, 2, 3]),        array: [10, 20, 30],        map: { foo: "bar" },        timestampExt: new Date(),      };
      for (let i = 0; i < N; i++) {        const encoded: Uint8Array = encoder.encode(object);        deepStrictEqual(await decoder.decodeAsync(createStream(encoded)), object, `#${i}`);      }    });  });
  context("encode() and decodeStream()", () => {    it("runs multiple times", async () => {      const encoder = new Encoder();      const decoder = new Decoder();
      const object = {        nil: null,        integer: 1,        float: Math.PI,        string: "Hello, world!",        binary: Uint8Array.from([1, 2, 3]),        array: [10, 20, 30],        map: { foo: "bar" },        timestampExt: new Date(),      };
      for (let i = 0; i < N; i++) {        const encoded: Uint8Array = encoder.encode(object);        const a: Array<any> = [];        for await (const item of decoder.decodeStream(createStream(encoded))) {          a.push(item);        }        deepStrictEqual(a, [object], `#${i}`);      }    });  });
  context("encode() and decodeArrayStream()", () => {    it("runs multiple times", async () => {      const encoder = new Encoder();      const decoder = new Decoder();
      const object = {        nil: null,        integer: 1,        float: Math.PI,        string: "Hello, world!",        binary: Uint8Array.from([1, 2, 3]),        array: [10, 20, 30],        map: { foo: "bar" },        timestampExt: new Date(),      };
      for (let i = 0; i < N; i++) {        const encoded: Uint8Array = encoder.encode([object]);        const a: Array<any> = [];        for await (const item of decoder.decodeStream(createStream(encoded))) {          a.push(item);        }        deepStrictEqual(a, [[object]], `#${i}`);      }    });
    context("regression #212", () => {      it("runs multiple times", () => {        const encoder = new Encoder();        const decoder = new Decoder();
        const data1 = {          isCommunication: false,          isWarning: false,          alarmId: "619f65a2774abf00568b7210",          intervalStart: "2022-05-20T12:00:00.000Z",          intervalStop: "2022-05-20T13:00:00.000Z",          triggeredAt: "2022-05-20T13:00:00.000Z",          component: "someComponent",          _id: "6287920245a582301475627d",        };
        const data2 = {          foo: "bar",        };
        const arr = [data1, data2];        const enc = arr.map((x) => [x, encoder.encode(x)] as const);
        enc.forEach(([orig, acc]) => {          const des = decoder.decode(acc);          deepStrictEqual(des, orig);        });      });    });
    context("Encoder#encodeSharedRef()", () => {      it("returns the shared reference", () => {        const encoder = new Encoder();
        const a = encoder.encodeSharedRef(true);        const b = encoder.encodeSharedRef(false);
        deepStrictEqual(decode(a), decode(b)); // yes, this is the expected behavior        deepStrictEqual(a.buffer, b.buffer);      });    });  });});