[doc] Test hanging when try doc demo for zipWithLatest #4331
Description
According to doc here, I adjust a little as following:
import zio.Queue
import zio.duration._
import zio.test.Assertion.equalTo
import zio.test._
import zio.test.environment.TestClock
import zio.stream._
import zio.test.Eql.eqlReflexive
object ClockSpec extends DefaultRunnableSpec {
def spec = suite("ClockSpec")(
testM("zipWithLatest") {
println("test start")
val s1 = Stream.iterate(0)(_ + 1).fixed(100.milliseconds)
val s2 = Stream.iterate(0)(_ + 1).fixed(70.milliseconds)
val s3 = s1.zipWithLatest(s2)((_, _))
for {
q <- Queue.unbounded[(Int, Int)]
_ <- s3.foreach(q.offer).fork
a <- q.take
_ <- TestClock.setTime(70.milliseconds)
b <- q.take
_ <- TestClock.setTime(100.milliseconds)
c <- q.take
_ <- TestClock.setTime(140.milliseconds)
d <- q.take
// it doesn't work too
// _ <- TestClock.adjust(1.minute)
} yield
assert(a)(equalTo(0 -> 0)) &&
assert(b)(equalTo(0 -> 1)) &&
assert(c)(equalTo(1 -> 1)) &&
assert(d)(equalTo(1 -> 2))
}
)
}and then run sbt testOnly ClockSpec
testOnly ClockSpec
[info] done compiling
test start
Warning: A test is using time, but is not advancing the test clock, which may result in the test hanging. Use TestClock.adjust to manually advance the time.
In Suite "ClockSpec", test "zipWithLatest" has taken more than 1 m to execute. If this is not expected, consider using TestAspect.timeout to timeout runaway tests for faster diagnostics.
I tried add TestClock.adjust in for expressions, but it didn't work.
How could I run the test correctly?