package fetchuser

import (
    "testing"

    gomock "go.uber.org/mock/gomock")

func TestProcessUser_Mockgen(t *testing.T) {
    ctrl := gomock.NewController(t)
    defer ctrl.Finish()

	user := User{ID: 1, Name: "Alice"}

	mockFetcher := NewMockAPIFetcher(ctrl)
    mockFetcher.EXPECT().FetchData(1).Return(user, nil)

	result, err := ProcessUser(mockFetcher, 1)
    if err != nil {
       t.Errorf("unexpected error: %v", err)
    }

    if result != user {
       t.Errorf("expected user: %v, got: %v", user, result)
    }
}