Function createMockClient

test/client/socket-helper.test.js:13–25

* Build a fresh mock WebSocketClient class. Each `new MockClient(url)` * registers the instance and arguments on the static `.mock` so tests can * assert on them. * @returns {new (url: string) => unknown} mock client constructor

()

 * @returns {new (url: string) => unknown} mock client constructor
 */
function createMockClient() {
  class MockClient {
    constructor(url) {
      MockClient.mock.instances.push(this);
      MockClient.mock.calls.push([url]);
      this.onOpen = fn();
      this.onClose = fn();
      this.onMessage = fn();
    }
  }
  MockClient.mock = { instances: [], calls: [] };
  return MockClient;
}

describe("socket", () => {
  beforeEach(() => {