Como mockar usando jest e type auxiliar

mock-type-with-jest.ts

export type MockType<T> = {
  [P in keyof T]?: jest.Mock<unknown>;
};

const mockKnexConnection : () => MockType<Knex<any, unknown>> 
= jest.fn(() => ({
  destroy: jest.fn(() => { console.log }),
  raw: jest.fn((query) => { 
    return new Promise<any>( (res) => {
      res(query)
    })
  })
}))