/*
 * Copyright (c)  2020 Oracle and/or its affiliates. All rights reserved.
 *
 * 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.common.reactive;

import org.reactivestreams.tck.TestEnvironment;
import org.reactivestreams.tck.flow.FlowPublisherVerification;
import org.testng.annotations.Test;

import java.util.concurrent.Flow;
import java.util.stream.IntStream;

@Test
public class ConcatPublisher2TckTest extends FlowPublisherVerification<Integer> {

    public ConcatPublisher2TckTest() {
        super(new TestEnvironment(200));
    }

    @Override
    public Flow.Publisher<Integer> createFlowPublisher(long n) {
        int firstHalf = (int)Math.min(n, 1); // trigger the switch to the 2nd source early
        return ConcatPublisher.create(
                Multi.create(() -> IntStream.range(0, firstHalf).boxed().iterator()),
                Multi.create(() -> IntStream.range(firstHalf, (int)n).boxed().iterator())
        );
    }

    @Override
    public Flow.Publisher<Integer> createFailedFlowPublisher() {
        return null;
    }

    @Override
    public long maxElementsFromPublisher() {
        return 10;
    }
}
