package mock import (	"context"	"errors" 	redis "github.com/redis/go-redis/v9") // InMemoryMockRedis is a very primitive in-memory redis-like feature. The main// purpose of this struct is to give some backend to mocked unit tests.type InMemoryMockRedis struct {	queues map[string][][]byte} func NewInMemoryMockRedis() InMemoryMockRedis {	return InMemoryMockRedis{		queues: map[string][][]byte{},	}} func (r *InMemoryMockRedis) LLen(ctx context.Context, key string) *redis.IntCmd {	cmd := redis.NewIntCmd(ctx)	cmd.SetVal(int64(len(r.queues[key])))	return cmd} func (r *InMemoryMockRedis) SAdd(ctx context.Context, key string, content []byte) *redis.IntCmd {	cmd := redis.NewIntCmd(ctx) 	for _, value := range r.queues[key] {		if string(value) == string(content) {			cmd.SetVal(0) 			return cmd		}	} 	r.queues[key] = append(r.queues[key], content) 	cmd.SetVal(1) 	return cmd} func (r *InMemoryMockRedis) RPush(ctx context.Context, key string, content []byte) *redis.IntCmd {	cmd := redis.NewIntCmd(ctx) 	r.queues[key] = append(r.queues[key], content) 	cmd.SetVal(1) 	return cmd} func (r *InMemoryMockRedis) LPop(ctx context.Context, key string) *redis.StringCmd {	cmd := redis.NewStringCmd(ctx) 	queue, found := r.queues[key]	if !found {		cmd.SetErr(errors.New("queue not found")) 		return cmd	} 	if len(queue) < 1 {		cmd.SetErr(errors.New("queue is empty")) 		return cmd	} 	value, rest := queue[0], queue[1:] 	r.queues[key] = rest 	cmd.SetVal(string(value)) 	return cmd} func (r *InMemoryMockRedis) SRem(ctx context.Context, key string, content []byte) *redis.IntCmd {	cmd := redis.NewIntCmd(ctx) 	queue, found := r.queues[key]	if !found {		cmd.SetErr(errors.New("queue not found")) 		return cmd	} 	if len(queue) < 1 {		cmd.SetErr(errors.New("queue is empty")) 		return cmd	} 	newList := [][]byte{} 	for _, value := range queue {		if string(value) != string(content) {			newList = append(newList, value)		}	} 	r.queues[key] = newList 	cmd.SetVal(1) 	return cmd} func (r *InMemoryMockRedis) SIsMember(ctx context.Context, key string, content []byte) *redis.BoolCmd {	cmd := redis.NewBoolCmd(ctx) 	queue, found := r.queues[key]	if !found {		cmd.SetErr(errors.New("queue not found")) 		return cmd	} 	for _, value := range queue {		if string(value) == string(content) {			cmd.SetVal(true) 			return cmd		}	} 	cmd.SetVal(false) 	return cmd}