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/**

* Copyright 2014 Netflix, Inc.

*

* 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 rx.test;

import rx.Scheduler;

/**

* Common utility functions for testing operator implementations.

*/

public final class OperatorTester {

/*

* This is purposefully package-only so it does not leak into the public API outside of this package.

*

* This package is implementation details and not part of the Javadocs and thus can change without breaking backwards compatibility.

*

* benjchristensen => I'm procrastinating the decision of where and how these types of classes (see rx.subjects.UnsubscribeTester) should exist.

* If they are only for internal implementations then I don't want them as part of the API.

* If they are truly useful for everyone to use then an "rx.testing" package may make sense.

*/

private OperatorTester() {

}

/**

* Used for mocking of Schedulers since many Scheduler implementations are static/final.

*

* @param underlying the actual scheduler

* @return the wrapping Scheduler instance

*/

public static Scheduler forwardingScheduler(Scheduler underlying) {

return new ForwardingScheduler(underlying);

}

public static class ForwardingScheduler extends Scheduler {

private final Scheduler underlying;

public ForwardingScheduler(Scheduler underlying) {

this.underlying = underlying;

}

@Override

public Worker createWorker() {

return underlying.createWorker();

}

}

}