You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: cache_test.go
    path of file: ./repos/Artalk/internal/dao
    
    the code of the file until where you have to start completion: package dao_test

import (
	"fmt"
	"reflect"
	"strings"
	"testing"

	"github.com/ArtalkJS/Artalk/internal/dao"
	"github.com/ArtalkJS/Artalk/internal/entity"
	"github.com/stretchr/testify/assert"
	"gorm.io/gorm"
)

func newTestDaoCache(t *testing.T) *dao.DaoCache {
	cache := newTestCache(t)
	return dao.NewCacheAdaptor(cache)
}

func TestNewCacheAdaptor(t *testing.T) {
	cache := newTestDaoCache(t)
	defer cache.Close()

	assert.NotNil(t, cache)
}

func TestCache(t *testing.T) {
	user := entity.User{
		Model: gorm.Model{
			ID: 233,
		},
		Name:     "Artalk",
		Email:    "artalkjs@gmail.com",
		Password: "12345",
	}

	site
    
func TestCache(t *testing.T) {
	user := entity.User{
		Model: gorm.Model{
			ID: 233,
		},
		Name:     "Artalk",
		Email:    "artalkjs@gmail.com",
		Password: "12345",
	}

	site := entity.Site{
		Model: gorm.Model{
			ID: 123,
		},
		Name: "2333",
	}

	page := entity.Page{
		Model: gorm.Model{
			ID: 343,
		},
		Key:      "/links.html",
		Title:    "Hello World",
		SiteName: site.Name,
	}

	comment := entity.Comment{
		Model: gorm.Model{
			ID: 2321,
		},
		Content:  "abcdefg",
		Rid:      0,
		UserID:   user.ID,
		PageKey:  page.Key,
		SiteName: page.SiteName,
	}

	childComment := entity.Comment{
		Model: gorm.Model{
			ID: 777,
		},
		Content:  "233",
		Rid:      comment.ID,
		UserID:   user.ID,
		PageKey:  page.Key,
		SiteName: page.SiteName,
	}

	tests := []struct {
		name     string
		data     any
		saveFunc func(cache *dao.DaoCache) error
		keys     []string
		delFunc  func(cache *dao.DaoCache) error
	}{
		// User Cache Test
		{
			data: &user,
			saveFunc: func(cache *dao.DaoCache) error {
				return cache.UserCacheSave(&user)
			},
			keys: []string{
				fmt.Sprintf(dao.UserByIDKey, user.ID),
				fmt.Sprintf(dao.UserByNameEmailKey, strings.ToLower(user.Name), strings.ToLower(user.Email)),
			},
			delFunc: func(cache *dao.DaoCache) error {
				cache.UserCacheDel(&user)
				return nil
			},
		},

		// Site Cache Test
		{
			data: &site,
			saveFunc: func(cache *dao.DaoCache) error {
				return cache.SiteCacheSave(&site)
			},
			keys: []string{
				fmt.Sprintf(dao.SiteByIDKey, site.ID),
				fmt.Sprintf(dao.SiteByNameKey, site.Name),
			},
			delFunc: func(cache *dao.DaoCache) error {
				cache.SiteCacheDel(&site)
				return nil
			},
		},

		// Page Cache Test
		{
			data: &page,
			saveFunc: func(cache *dao.DaoCache) error {
				return cache.PageCacheSave(&page)
			},
			keys: []string{
				fmt.Sprintf(dao.PageByIDKey, page.ID),
			},
			delFunc: func(cache *dao.DaoCache) error {
				cache.PageCacheDel(&page)
				return nil
			},
		},

		// Comment Cache Test
		{
			data: &comment,
			saveFunc: func(cache *dao.DaoCache) error {
				return cache.CommentCacheSave(&comment)
			},
			keys: []string{
				fmt.Sprintf(dao.CommentByIDKey, comment.ID),
			},
			delFunc: func(cache *dao.DaoCache) error {
				cache.CommentCacheDel(&comment)
				return nil
			},
		},

		// Child Comment Cache Test
		{
			data: &childComment,
			saveFunc: func(cache *dao.DaoCache) error {
				return cache.CommentCacheSave(&childComment)
			},
			keys: []string{
				fmt.Sprintf(dao.CommentByIDKey, childComment.ID),
			},
			delFunc: func(cache *dao.DaoCache) error {
				cache.CommentCacheDel(&childComment)
				return nil
			},
		},
	}

	for _, tt := range tests {
		for _, key := range tt.keys {
			t.Run(fmt.Sprintf("%T", tt.data)+"/Key="+key, func(t *testing.T) {
				// run test for each key
				cache := newTestDaoCache(t)
				defer cache.Close()

				// func to let Marshaller know the type of the `tt.data`,
				// rather than use `var data any`
				createEmptyTypedData := func() any {
					p := reflect.ValueOf(tt.data).Elem()
					return reflect.New(p.Type()).Interface()
				}

				// Check if key exists before save
				t.Run("FindBeforeSave", func(t *testing.T) {
					var data any
					err := cache.FindCache(key, &data)
					assert.Error(t, err) // Key should not exist before save
					assert.Empty(t, data)
				})

				// save cache
				t.Run("Save", func(t *testing.T) {
					err := tt.saveFunc(cache)
					assert.NoError(t, err)
				})

				// Check if key exists after save
				t.Run("FindAfterSave", func(t *testing.T) {
					data := createEmptyTypedData()

					err := cache.FindCache(key, &data)
					if assert.NoError(t, err) {
						assert.EqualValues(t, tt.data, data) // data should equal after cache save
					}
				})

				// Check if key exists after delete
				t.Run("DeleteAfterSave", func(t *testing.T) {
					err := tt.delFunc(cache)
					assert.NoError(t, err)
				})

				t.Run("FindAfterDelete", func(t *testing.T) {
					var data any
					err := cache.FindCache(key, &data)
					assert.Error(t, err)
					assert.Empty(t, data)
				})
			})
		}
	}
}