Support injected clock

[oharaandrew314]

It would be nice to be able to inject a clock into the fake server so we can test expiry operations.

[inponomarev]

Thanks for the suggestion, you are right, that would be a great addition to the mock. Will include this feature into the plan for the autumn term

[inponomarev]

Clock injection is implemented in version 1.1.3

See README for details

[oharaandrew314]

Does the server need to have the clock updated each time I wish to change the time? Or will the server be reactive to the clock being mutated? For example:

var time = Instant.EPOCH

server.setClock(object: Clock {
  override fun instant() = time
  ...
})

jedis.setex("key1", 20, "v1");
time += Duration.ofSeconds(30)
jedis.exists("key1") shouldBe false

[inponomarev]

Both approaches are possible, but please mark shared mutable time variable as @Volatile, as it will be read in a separate thread.

[oharaandrew314]

Oh, I see. Thanks!