I am new to this unit testing. I am getting an error in jet unit testing. Below is my code.

index.ts:

export const getData = async (): Promise<any> => {
  const url = `/dataHistory`;
  return new Promise((resolve, reject) => {
    axios({
      method: "get",
      url: url
    })
      ?.then((res) => {
        resolve(res?.data);
      })
      ?.catch((err) => {
        reject(err?.response?.data?.message);
      });
  });
};

index.test.ts:

import { getData } from "./index";
const axios = require('axios');
jest.mock('axios');

describe("getData Services", () => {
  it("should call getData",async () => {
    let errMsg = new Error();
    axios.mockImplementationOnce(() => Promise.reject(errMsg));
    const result =  await getData(mockRequest);
    expect(result).rejects.toThrow(errMsg);
  });
});

Not able to crack what I am missing in this syntax. Can you help me in resolving this?