socket.io/test/buffer.js

const { PacketType } = require("..");
const helpers = require("./helpers.js");

describe("parser", () => {
  it("encodes a Buffer", (done) => {
    helpers.test_bin(
      {
        type: PacketType.BINARY_EVENT,
        data: ["a", Buffer.from("abc", "utf8")],
        id: 23,
        nsp: "/cool",
      },
      done
    );
  });

  it("encodes a binary ack with Buffer", (done) => {
    helpers.test_bin(
      {
        type: PacketType.BINARY_ACK,
        data: ["a", Buffer.from("xxx", "utf8"), {}],
        id: 127,
        nsp: "/back",
      },
      done
    );
  });
});