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LocalJVMSuite.scala
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LocalJVMSuite.scala
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/*
* Copyright (c) 2014-2019 by The Monix Project Developers.
* See the project homepage at: https://monix.io
*
* 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 monix.execution.misc
import minitest.SimpleTestSuite
import monix.execution.{Cancelable, CancelableFuture, Scheduler}
import monix.execution.exceptions.DummyException
import monix.execution.schedulers.TracingScheduler
import scala.concurrent.Future
object LocalJVMSuite extends SimpleTestSuite {
testAsync("Local.isolate should properly isolate during async boundaries") {
implicit val s = TracingScheduler(Scheduler.singleThread("local-test"))
val local = Local(0)
val f = for {
_ <- Future { local := 50 }
_ <- Local.isolate {
Future {
local := 100
}
}
v <- Future { local() }
} yield v
for (v <- f) yield assertEquals(v, 50)
}
testAsync("Local.isolate(CancelableFuture) should properly isolate during async boundaries") {
implicit val s = TracingScheduler(Scheduler.singleThread("local-test"))
val local = Local(0)
val f = for {
_ <- CancelableFuture(Future { local := 50 }, Cancelable())
_ <- Local.isolate {
CancelableFuture(Future {
local := 100
}, Cancelable())
}
v <- CancelableFuture(Future { local() }, Cancelable())
} yield v
for (v <- f) yield assertEquals(v, 50)
}
testAsync("Local.isolate should properly isolate during async boundaries on error") {
implicit val s = TracingScheduler(Scheduler.singleThread("local-test"))
val local = Local(0)
val f = for {
_ <- Future { local := 50 }
_ <- Local.isolate {
Future {
local := 100
}.flatMap(_ => Future.failed(DummyException("boom")))
}.recoverWith { case _ => Future.successful(()) }
v <- Future { local() }
} yield v
for (v <- f) yield assertEquals(v, 50)
}
testAsync("Local.bindCurrentIf(CancelableFuture) should properly restore context during async boundaries") {
implicit val s = TracingScheduler(Scheduler.singleThread("local-test"))
val local = Local(0)
val f = for {
_ <- Future { local := 50 }
_ <- Local.bindCurrentIf(true)(CancelableFuture(Future {
local := 100
}, Cancelable.empty))
v <- Future { local() }
} yield v
for (v <- f) yield assertEquals(v, 50)
}
testAsync("Local.bind(Local.defaultContext()) should restore context during async boundaries") {
implicit val s = TracingScheduler(Scheduler.singleThread("local-test"))
val local = Local(0)
val f = for {
_ <- Future { local := 50 }
_ <- Local.bind(Local.newContext()) { Future { local := 100 } }
v <- Future { local() }
} yield v
for (v <- f) yield assertEquals(v, 50)
}
testAsync("Local.bindClear should restore context during async boundaries") {
implicit val s = TracingScheduler(Scheduler.singleThread("local-test"))
val local = Local(0)
val f = for {
_ <- Future { local := 50 }
_ <- Local.bindClear { Future { local := 100 } }
v <- Future { local() }
} yield v
for (v <- f) yield assertEquals(v, 50)
}
testAsync("local.bind should properly restore context during async boundaries") {
implicit val s = TracingScheduler(Scheduler.singleThread("local-test"))
val local = Local(0)
val f = for {
_ <- Future { local := 50 }
_ <- local.bind(100)(Future { () })
v <- Future { local() }
} yield v
for (v <- f) yield assertEquals(v, 50)
}
testAsync("local.bindClear should properly restore context during async boundaries") {
implicit val s = TracingScheduler(Scheduler.singleThread("local-test"))
val local = Local(0)
val f = for {
_ <- Future { local := 50 }
_ <- local.bindClear(Future { () })
v <- Future { local() }
} yield v
for (v <- f) yield assertEquals(v, 50)
}
}