From d170dd305d865c87d577f6f09a239f0780429433 Mon Sep 17 00:00:00 2001 From: Quang Le Date: Sun, 4 Oct 2020 15:29:14 +0700 Subject: [PATCH] Add scala code highlight test --- .../Scala/ConcurrentEffectLaws.scala | 98 ++++++++++ .../source/Scala/ConcurrentEffectLaws.scala | 98 ++++++++++ tests/syntax-tests/source/Scala/LICENSE.md | 177 ++++++++++++++++++ 3 files changed, 373 insertions(+) create mode 100644 tests/syntax-tests/highlighted/Scala/ConcurrentEffectLaws.scala create mode 100644 tests/syntax-tests/source/Scala/ConcurrentEffectLaws.scala create mode 100644 tests/syntax-tests/source/Scala/LICENSE.md diff --git a/tests/syntax-tests/highlighted/Scala/ConcurrentEffectLaws.scala b/tests/syntax-tests/highlighted/Scala/ConcurrentEffectLaws.scala new file mode 100644 index 00000000..58d571f2 --- /dev/null +++ b/tests/syntax-tests/highlighted/Scala/ConcurrentEffectLaws.scala @@ -0,0 +1,98 @@ +/* + * Copyright (c) 2017-2019 The Typelevel Cats-effect Project Developers + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package cats +package effect +package laws + +import cats.effect.concurrent.Deferred +import cats.syntax.all._ +import cats.laws._ + +import scala.concurrent.Promise + +trait ConcurrentEffectLaws[F[_]] extends ConcurrentLaws[F] with EffectLaws[F] { + implicit def F: ConcurrentEffect[F] + + def runAsyncRunCancelableCoherence[A](fa: F[A]) = { + val fa1 = IO.async[A] { cb => + F.runAsync(fa)(r => IO(cb(r))).unsafeRunSync() + } + val fa2 = IO.cancelable[A] { cb => + F.toIO(F.runCancelable(fa)(r => IO(cb(r))).unsafeRunSync()) + } + fa1 <-> fa2 + } + + def runCancelableIsSynchronous[A] = { + val lh = Deferred.uncancelable[F, Unit].flatMap { latch => + val spawned = Promise[Unit]() + // Never ending task + val ff = F.cancelable[A] { _ => + spawned.success(()); latch.complete(()) + } + // Execute, then cancel + val token = F.delay(F.runCancelable(ff)(_ => IO.unit).unsafeRunSync()).flatMap { cancel => + // Waiting for the task to start before cancelling it + Async.fromFuture(F.pure(spawned.future)) >> cancel + } + F.liftIO(F.runAsync(token)(_ => IO.unit).toIO) *> latch.get + } + lh <-> F.unit + } + + def runCancelableStartCancelCoherence[A](a: A) = { + // Cancellation via runCancelable + val f1: F[A] = for { + effect1 <- Deferred.uncancelable[F, A] + latch <- F.delay(Promise[Unit]()) + never = F.cancelable[A] { _ => + latch.success(()); effect1.complete(a) + } + cancel <- F.liftIO(F.runCancelable(never)(_ => IO.unit).toIO) + // Waiting for the task to start before cancelling it + _ <- Async.fromFuture(F.pure(latch.future)) // TODO get rid of this, IO, and Future here + _ <- cancel + result <- effect1.get + } yield result + + // Cancellation via start.flatMap(_.cancel) + val f2: F[A] = for { + effect2 <- Deferred.uncancelable[F, A] + // Using a latch to ensure that the task started + latch <- Deferred.uncancelable[F, Unit] + never = F.bracket(latch.complete(()))(_ => F.never[Unit])(_ => effect2.complete(a)) + fiber <- F.start(never) + // Waiting for the task to start before cancelling it + _ <- latch.get + _ <- F.start(fiber.cancel) + result <- effect2.get + } yield result + + f1 <-> f2 + } + + def toIORunCancelableConsistency[A](fa: F[A]) = + ConcurrentEffect.toIOFromRunCancelable(fa) <-> F.toIO(fa) +} + +object ConcurrentEffectLaws { + def apply[F[_]](implicit F0: ConcurrentEffect[F], contextShift0: ContextShift[F]): ConcurrentEffectLaws[F] = + new ConcurrentEffectLaws[F] { + val F = F0 + val contextShift = contextShift0 + } +} diff --git a/tests/syntax-tests/source/Scala/ConcurrentEffectLaws.scala b/tests/syntax-tests/source/Scala/ConcurrentEffectLaws.scala new file mode 100644 index 00000000..7483dfb6 --- /dev/null +++ b/tests/syntax-tests/source/Scala/ConcurrentEffectLaws.scala @@ -0,0 +1,98 @@ +/* + * Copyright (c) 2017-2019 The Typelevel Cats-effect Project Developers + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package cats +package effect +package laws + +import cats.effect.concurrent.Deferred +import cats.syntax.all._ +import cats.laws._ + +import scala.concurrent.Promise + +trait ConcurrentEffectLaws[F[_]] extends ConcurrentLaws[F] with EffectLaws[F] { + implicit def F: ConcurrentEffect[F] + + def runAsyncRunCancelableCoherence[A](fa: F[A]) = { + val fa1 = IO.async[A] { cb => + F.runAsync(fa)(r => IO(cb(r))).unsafeRunSync() + } + val fa2 = IO.cancelable[A] { cb => + F.toIO(F.runCancelable(fa)(r => IO(cb(r))).unsafeRunSync()) + } + fa1 <-> fa2 + } + + def runCancelableIsSynchronous[A] = { + val lh = Deferred.uncancelable[F, Unit].flatMap { latch => + val spawned = Promise[Unit]() + // Never ending task + val ff = F.cancelable[A] { _ => + spawned.success(()); latch.complete(()) + } + // Execute, then cancel + val token = F.delay(F.runCancelable(ff)(_ => IO.unit).unsafeRunSync()).flatMap { cancel => + // Waiting for the task to start before cancelling it + Async.fromFuture(F.pure(spawned.future)) >> cancel + } + F.liftIO(F.runAsync(token)(_ => IO.unit).toIO) *> latch.get + } + lh <-> F.unit + } + + def runCancelableStartCancelCoherence[A](a: A) = { + // Cancellation via runCancelable + val f1: F[A] = for { + effect1 <- Deferred.uncancelable[F, A] + latch <- F.delay(Promise[Unit]()) + never = F.cancelable[A] { _ => + latch.success(()); effect1.complete(a) + } + cancel <- F.liftIO(F.runCancelable(never)(_ => IO.unit).toIO) + // Waiting for the task to start before cancelling it + _ <- Async.fromFuture(F.pure(latch.future)) // TODO get rid of this, IO, and Future here + _ <- cancel + result <- effect1.get + } yield result + + // Cancellation via start.flatMap(_.cancel) + val f2: F[A] = for { + effect2 <- Deferred.uncancelable[F, A] + // Using a latch to ensure that the task started + latch <- Deferred.uncancelable[F, Unit] + never = F.bracket(latch.complete(()))(_ => F.never[Unit])(_ => effect2.complete(a)) + fiber <- F.start(never) + // Waiting for the task to start before cancelling it + _ <- latch.get + _ <- F.start(fiber.cancel) + result <- effect2.get + } yield result + + f1 <-> f2 + } + + def toIORunCancelableConsistency[A](fa: F[A]) = + ConcurrentEffect.toIOFromRunCancelable(fa) <-> F.toIO(fa) +} + +object ConcurrentEffectLaws { + def apply[F[_]](implicit F0: ConcurrentEffect[F], contextShift0: ContextShift[F]): ConcurrentEffectLaws[F] = + new ConcurrentEffectLaws[F] { + val F = F0 + val contextShift = contextShift0 + } +} diff --git a/tests/syntax-tests/source/Scala/LICENSE.md b/tests/syntax-tests/source/Scala/LICENSE.md new file mode 100644 index 00000000..66a27ec5 --- /dev/null +++ b/tests/syntax-tests/source/Scala/LICENSE.md @@ -0,0 +1,177 @@ + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. 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