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/*
* Copyright 2019-2022 John A. De Goes and the ZIO Contributors
*
* 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 zio.test
import zio._
trait TimeoutVariants {
/**
* A test aspect that prints a warning to the console when a test takes longer
* than the specified duration.
*/
def timeoutWarning(
duration: Duration
): TestAspectAtLeastR[Live] =
new TestAspect[Nothing, Live, Nothing, Any] {
def some[R <: Live, E](
spec: Spec[R, E]
)(implicit trace: Trace): Spec[R, E] = {
def loop(labels: List[String], spec: Spec[R, E]): Spec[R with Live, E] =
spec.caseValue match {
case Spec.ExecCase(exec, spec) => Spec.exec(exec, loop(labels, spec))
case Spec.LabeledCase(label, spec) => Spec.labeled(label, loop(label :: labels, spec))
case Spec.ScopedCase(scoped) => Spec.scoped[R](scoped.map(loop(labels, _)))
case Spec.MultipleCase(specs) =>
Spec.multiple(specs.map(loop(labels, _)))
case Spec.TestCase(test, annotations) =>
Spec.test(warn(labels, test, duration), annotations)
}
loop(Nil, spec)
}
}
private def warn[R, E](
labels: List[String],
test: ZTest[R, E],
duration: Duration
): ZTest[R with Live, E] =
test.raceWith(Live.withLive(showWarning(labels, duration))(_.delay(duration)))(
(result, fiber) => fiber.interrupt *> ZIO.done(result),
(_, fiber) => fiber.join
)
private def showWarning(
labels: List[String],
duration: Duration
): URIO[Live, Unit] =
Live.live(Console.printLine(renderWarning(labels, duration)).orDie)
private def renderWarning(labels: List[String], duration: Duration): String =
"Test " + labels.reverse.mkString(" - ") + " has taken more than " + duration.render +
" to execute. If this is not expected, consider using TestAspect.timeout to timeout runaway tests for faster diagnostics."
}
