/*
 * Copyright (c) 2019, 2020 Oracle and/or its affiliates.
 *
 * 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 io.helidon.microprofile.grpc.server;

import io.grpc.stub.StreamObserver;
import io.reactivex.Observer;
import io.reactivex.observers.TestObserver;

/**
 * A test {@link io.grpc.stub.StreamObserver} that is based on the
 * RxJava {@link io.reactivex.observers.TestObserver} that allows tests
 * to easily assert state of the observer.
 */
public class TestStreamObserver<T>
        extends TestObserver<T>
        implements StreamObserver<T> {

    public TestStreamObserver() {
        onSubscribe(new TestObserver<>());
    }

    public TestStreamObserver(Observer<? super T> actual) {
        super(actual);
        onSubscribe(new TestObserver<>());
    }

    @Override
    public void onCompleted() {
        onComplete();
    }
}
