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MockRedisBackend

Struct MockRedisBackend 

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pub struct MockRedisBackend { /* private fields */ }
Expand description

Mock Redis 后端(用 HashMap 模拟 Redis 行为)

用于测试和开发环境,不需要真实 Redis 服务器。

§模拟行为

  • KV 存储:HashMap<String, (Vec<u8>, Option<Instant>)> — value + expires_at
  • Set 存储:HashMap<String, HashSet<String>>
  • TTL 过期:get/exists/incr_by/decr_by 时检查过期
  • INCRBY:key 不存在时初始化为 0,非数字时返回错误(对齐 Redis 行为)

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impl MockRedisBackend

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pub fn new() -> Self

创建新的 Mock Redis 后端

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impl Default for MockRedisBackend

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl RedisBackend for MockRedisBackend

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fn get(&self, key: &str) -> Result<Option<Vec<u8>>, CacheError>

GET 命令
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fn set(&self, key: &str, value: Vec<u8>) -> Result<(), CacheError>

SET 命令(无 TTL)
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fn set_ex( &self, key: &str, value: Vec<u8>, ttl: Duration, ) -> Result<(), CacheError>

SETEX 命令(带 TTL)
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fn del(&self, key: &str) -> Result<i64, CacheError>

DEL 命令(单个 key),返回删除数量
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fn del_many(&self, keys: &[&str]) -> Result<i64, CacheError>

DEL 命令(批量),返回删除数量
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fn exists(&self, key: &str) -> Result<bool, CacheError>

EXISTS 命令
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fn incr_by(&self, key: &str, step: i64) -> Result<i64, CacheError>

INCRBY 命令(key 不存在时 Redis 初始化为 0 再 INCRBY)
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fn decr_by(&self, key: &str, step: i64) -> Result<i64, CacheError>

DECRBY 命令
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fn flush_db(&self) -> Result<(), CacheError>

FLUSHDB 命令(清空当前 db)
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fn sadd(&self, key: &str, member: &str) -> Result<i64, CacheError>

SADD 命令(向 Set 添加成员)
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fn smembers(&self, key: &str) -> Result<Vec<String>, CacheError>

SMEMBERS 命令(返回 Set 全部成员)

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