/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to you 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.apache.stormcrawler.metrics;

import static org.junit.jupiter.api.Assertions.assertEquals;

import java.util.ArrayList;
import java.util.List;
import org.junit.jupiter.api.Test;

class DualReducedMetricTest {

    @Test
    void scopeDelegatesToBothReducedMetrics() {
        List<Object> v1Values = new ArrayList<>();
        List<Object> v2Values = new ArrayList<>();

        ScopedReducedMetric v1 = scopeName -> v1Values::add;
        ScopedReducedMetric v2 = scopeName -> v2Values::add;

        DualReducedMetric dual = new DualReducedMetric(v1, v2);
        ScopedReducedMetric.ReduceHandle handle = dual.scope("test");

        handle.update(42);
        handle.update(100);

        assertEquals(List.of(42, 100), v1Values);
        assertEquals(List.of(42, 100), v2Values);
    }
}
