Peter Perhac PeterPerhac

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Likes: coding, walking, reading, photography, people with a kind face and broad smile. Dislikes: pseudoscience

PeterPerhac / OptionTSequencing.scala

Last active June 29, 2017 10:50

Traversing OptionTs - how to get from List[OptionT[F,T]] to F[List[T]] by discarding None's

	import cats.data.OptionT

	import scala.concurrent.ExecutionContext.Implicits.global
	import scala.concurrent.duration.Duration
	import scala.concurrent.{Await, Future}

	object CollectingOptionTs {

	def main(args: Array[String]): Unit = {
	import cats.instances.future._

PeterPerhac / FutureAssertions.scala

Last active February 20, 2021 20:44

Making assertions about Scala Futures and cats OptionT[Future, T] and EitherT[Future, L, R]

	import cats.data.{EitherT, OptionT}
	import org.scalatest.{Assertion, TestSuite}

	import scala.concurrent.Future

	trait FutureAssertions {
	self: TestSuite =>

	import org.scalatest.MustMatchers._
	import org.scalatest.concurrent.ScalaFutures._

PeterPerhac / SequentialAndParallelFutures.scala

Created May 28, 2017 22:10

	import scala.concurrent.duration.Duration.Inf
	import scala.concurrent.{Await, Future}
	import scala.concurrent.ExecutionContext.Implicits.global

	object App{

	def main(args:Array[String]):Unit = {
	import cats.syntax.cartesian._
	import cats.instances.future._
	val program = for {