this feels a bit weird to me ``` f can sync val clock = mock kotlinlang #mockk

"f:can sync" {
  val clock = mockk<Clock>()
  every { clock.instant() } returns YESTERDAY andThen NOW
}

"f:can delete" {
  val clock = mockk<Clock>()
  every { clock.instant() } returns YESTERDAY andThen NOW andThen NOW
}

the first one logs:

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10:33:28.099 [kotest-engine-0 @coroutine#2] DEBUG io.mockk.impl.instantiation.AbstractMockFactory - Creating mockk for Clock name=#1
10:33:29.228 [kotest-engine-0 @coroutine#2] DEBUG io.mockk.impl.instantiation.AbstractMockFactory - Creating mockk for Instant name=child of #1#2

the second one

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10:33:29.245 [kotest-engine-0 @coroutine#3] DEBUG io.mockk.impl.instantiation.AbstractMockFactory - Creating mockk for Clock name=#3
10:33:29.247 [kotest-engine-0 @coroutine#3] DEBUG io.mockk.impl.instantiation.AbstractMockFactory - Creating mockk for Instant name=child of #3#4

how comes in the first test it takes one second to create a mock?

Clock

is a

java.time.Clock

LeoColman

06/23/2020, 3:04 PM

Probably due to reflection initialization

The first time you use reflection it takes a lot of time

Try to invert both tests and see if it changes

thanksforallthefish

06/28/2020, 4:47 AM

@LeoColman Sorry, I missed your reply somehow. that is the first thing I tried and indeed inverting the order inverts the slowness. what strucks me as weird is that unit test are supposed to be fast, if it takes >1s for reflection initialization we are the realm of slow tests. weirdly enough I did not realize this problem with other interfaces, clock seems to be the one

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