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path: root/components/datalake-handler/feeder/src/test/java/org/onap/datalake/feeder/service/PullServiceTest.java
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/*
 * ============LICENSE_START=======================================================
 * ONAP : DATALAKE
 * ================================================================================
 * Copyright 2019 China Mobile
 * Copyright (C) 2022 Wipro Limited
 *=================================================================================
 * 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.
 * ============LICENSE_END=========================================================
 */

package org.onap.datalake.feeder.service;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.InjectMocks;
import org.mockito.Mock;
import org.mockito.junit.MockitoJUnitRunner;
import org.onap.datalake.feeder.config.ApplicationConfiguration;
import org.springframework.context.ApplicationContext;
import java.lang.reflect.Field;
import java.util.List;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.locks.ReentrantReadWriteLock;
import static org.junit.Assert.assertFalse;
import static org.mockito.Mockito.when;

@RunWith(MockitoJUnitRunner.class)
public class PullServiceTest {

    @InjectMocks
    private PullService pullService;

    @Mock
    private ApplicationContext context;

    @Mock
    private ApplicationConfiguration config;

    @Mock
    private ExecutorService executorService;

    @Mock
    private List < Puller > consumers;

    @Test
    public void isRunning() {
        assertFalse(pullService.isRunning());
    }

    @Test(expected = NullPointerException.class)
    public void start() {
        setRunning(false);
        pullService.start();
        setRunning(true);
        pullService.start();
    }

    @Test
    public void shutdown() {
        when(config.getShutdownLock()).thenReturn(new ReentrantReadWriteLock());
        setRunning(false);
        pullService.shutdown();
        setRunning(true);
        pullService.shutdown();
    }

    private void setRunning(boolean running) {
        Field configField;
        try {
            configField = PullService.class.getDeclaredField("isRunning");
            configField.setAccessible(true);
            configField.set(pullService, running);
        } catch (IllegalArgumentException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IllegalAccessException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();

        } catch (NoSuchFieldException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (SecurityException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
}