/
ReactiveStreamsTck.java
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/
ReactiveStreamsTck.java
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/*******************************************************************************
* Copyright (c) 2018 Contributors to the Eclipse Foundation
*
* See the NOTICE file(s) distributed with this work for additional
* information regarding copyright ownership.
*
* 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 org.eclipse.microprofile.reactive.streams.tck;
import org.eclipse.microprofile.reactive.streams.spi.ReactiveStreamsEngine;
import org.reactivestreams.tck.TestEnvironment;
import org.testng.annotations.AfterSuite;
import org.testng.annotations.Factory;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.function.Function;
/**
* The Reactive Streams TCK.
* <p>
* A concrete class that extends this class is all that is needed to verify a {@link ReactiveStreamsEngine} against
* this TCK.
* <p>
* It produces a number of TestNG test classes via the TestNG {@link Factory} annotated {@link #allTests()} method.
*
* @param <E> The type of the Reactive Streams engine.
*/
public abstract class ReactiveStreamsTck<E extends ReactiveStreamsEngine> {
private final TestEnvironment testEnvironment;
public ReactiveStreamsTck(TestEnvironment testEnvironment) {
this.testEnvironment = testEnvironment;
}
/**
* Override to provide the reactive streams engine.
*/
protected abstract E createEngine();
/**
* Override to implement custom shutdown logic for the Reactive Streams engine.
*/
protected void shutdownEngine(E engine) {
// By default, do nothing.
}
/**
* Override this to disable/enable tests, useful for debugging one test at a time.
*/
protected boolean isEnabled(Object test) {
return true;
}
private E engine;
private ScheduledExecutorService executorService;
@AfterSuite(alwaysRun = true)
public void shutdownEngine() {
if (engine != null) {
shutdownEngine(engine);
}
}
@Factory
public Object[] allTests() {
engine = createEngine();
executorService = Executors.newScheduledThreadPool(4);
List<Function<VerificationDeps, AbstractStageVerification>> stageVerifications = Arrays.asList(
OfStageVerification::new,
MapStageVerification::new,
FlatMapStageVerification::new,
FilterStageVerification::new,
FindFirstStageVerification::new,
CollectStageVerification::new,
TakeWhileStageVerification::new,
FlatMapPublisherStageVerification::new,
FlatMapCompletionStageVerification::new,
FlatMapIterableStageVerification::new,
ConcatStageVerification::new,
EmptyProcessorVerification::new,
CancelStageVerification::new,
SubscriberStageVerification::new,
PeekStageVerification::new,
DistinctStageVerification::new,
OnStagesVerification::new
);
List<Object> allTests = new ArrayList<>();
VerificationDeps deps = new VerificationDeps();
for (Function<VerificationDeps, AbstractStageVerification> creator : stageVerifications) {
AbstractStageVerification stageVerification = creator.apply(deps);
allTests.add(stageVerification);
allTests.addAll(stageVerification.reactiveStreamsTckVerifiers());
}
return allTests.stream().filter(this::isEnabled).toArray();
}
class VerificationDeps {
ReactiveStreamsEngine engine() {
return engine;
}
TestEnvironment testEnvironment() {
return testEnvironment;
}
ScheduledExecutorService executorService() {
return executorService;
}
}
}