redismock

https://github.com/go-redis/redismock
db, mock := redismock.NewClientMock()
mock.ExpectGet(key).RedisNil()

https://golangrepo.com/repo/go-redis-redismock

还有其他实现
https://github.com/elliotchance/redismock
https://github.com/alicebob/miniredis
https://stackoverflow.com/questions/58016501/returning-a-mock-from-a-package-function

https://medium.com/easyread/unit-test-redis-in-golang-c22b5589ea37

// newTestRedis returns a redis.Cmdable.
func newTestRedis() *redismock.ClientMock {
mr, err := miniredis.Run()
if err != nil {
panic(err)
}
client := redis.NewClient(&redis.Options{
Addr: mr.Addr(),
})
return redismock.NewNiceMock(client)
}
https://elliotchance.medium.com/mocking-redis-in-unit-tests-in-go-28aff285b98