describe("ServiceApiImpl") {
  it("get name") {
    val serviceApi = new ServiceApiImpl
    val serviceApiSpy = spy(serviceApi)

    when(serviceApiSpy.getUser(101))
      .thenReturn(EitherT.rightT[Future, String](ExternalUser(101, "John")))

    assertResult(EitherT.rightT[Future, String](User(John))) {
      serviceApiSpy.getName(101)
    }
  }

}

Expected EitherT(Future(Success(Right(User("John"))))), but got EitherT(Future(Success(Right(User("John")))))