package service

import (
 "github.com/stretchr/testify/assert"
 "github.com/micnncim/clean-arch-test/repository"
)

// type UserRepository interface {
//   GetByID(id int) (*User, error)
//   GetByName(name string) (*User, error)
// }

// type UserService interface {
//   GetByID(id int) (*User, error)
//   GetByName(name string) (*User, error)
// }

// type userService struct {
//   r repository.UserRepository
// }

type fakeUserRepository struct {
}

func (r *fakeUserRepository) GetByID(id int) (*User, error) {
  return &User{
    ID: 1,
    Name: "Alice",
  }, nil
}

func (r *fakeUserRepository) GetByName(name string) (*User, error) {
  ...
}

func TestGetByID(t *testing.T) {
  patterns := []struct{
    in int
    expected *User
  }{
    {
      in: 1,
      expected: &User{
        ID: 1,
        Name: "Alice",
      },
    },
  }

  s := &UserService{r: &fakeUserRepository{}}

  for _, p := range patterns {
    actual, err := s.GetByID(p.in)
    assert.NoError(t, err, "expect no error")
    assert.Equal(t, p.expected, actual, "expect expected == actual")
  }
}