package nomino

import (
	"errors"
	"testing"

	"github.com/google/uuid"
	"github.com/stretchr/testify/assert"
)

func TestWithUUID(t *testing.T) {
	var c config
	WithUUID()(&c)
	st, err := c.generator()
	assert.NoError(t, err)
	_, parseErr := uuid.Parse(st)
	assert.NoError(t, parseErr)
}

type badRead struct{}

func (badRead) Read([]byte) (int, error) {
	return 0, errors.New("sorry")
}

func TestWithUUIDFail(t *testing.T) {
	var c config
	uuid.SetRand(badRead{})
	defer uuid.SetRand(nil)
	WithUUID()(&c)
	_, err := c.generator()
	assert.Equal(t, errors.New("sorry"), err)
}