/*
 * Copyright 2012-2017 Red Hat, Inc.
 *
 * This file is part of Thermostat.
 *
 * Thermostat is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published
 * by the Free Software Foundation; either version 2, or (at your
 * option) any later version.
 *
 * Thermostat is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Thermostat; see the file COPYING.  If not see
 * <http://www.gnu.org/licenses/>.
 *
 * Linking this code with other modules is making a combined work
 * based on this code.  Thus, the terms and conditions of the GNU
 * General Public License cover the whole combination.
 *
 * As a special exception, the copyright holders of this code give
 * you permission to link this code with independent modules to
 * produce an executable, regardless of the license terms of these
 * independent modules, and to copy and distribute the resulting
 * executable under terms of your choice, provided that you also
 * meet, for each linked independent module, the terms and conditions
 * of the license of that module.  An independent module is a module
 * which is not derived from or based on this code.  If you modify
 * this code, you may extend this exception to your version of the
 * library, but you are not obligated to do so.  If you do not wish
 * to do so, delete this exception statement from your version.
 */

package com.redhat.thermostat.vm.heap.analysis.client.core.internal;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotSame;
import static org.junit.Assert.assertTrue;
import static org.mockito.Mockito.mock;

import org.junit.Test;

import com.redhat.thermostat.client.core.InformationService;
import com.redhat.thermostat.client.core.progress.ProgressNotifier;
import com.redhat.thermostat.common.ApplicationService;
import com.redhat.thermostat.storage.dao.VmInfoDAO;
import com.redhat.thermostat.testutils.StubBundleContext;
import com.redhat.thermostat.vm.heap.analysis.client.core.HeapDumpDetailsViewProvider;
import com.redhat.thermostat.vm.heap.analysis.client.core.HeapDumpListViewProvider;
import com.redhat.thermostat.vm.heap.analysis.client.core.HeapHistogramViewProvider;
import com.redhat.thermostat.vm.heap.analysis.client.core.HeapTreeMapViewProvider;
import com.redhat.thermostat.vm.heap.analysis.client.core.HeapViewProvider;
import com.redhat.thermostat.vm.heap.analysis.client.core.ObjectDetailsViewProvider;
import com.redhat.thermostat.vm.heap.analysis.client.core.ObjectRootsViewProvider;
import com.redhat.thermostat.vm.heap.analysis.common.HeapDAO;
import com.redhat.thermostat.vm.memory.common.VmMemoryStatDAO;

public class ActivatorTest {
    
    @Test
    public void verifyActivatorDoesNotRegisterServiceOnMissingDeps() throws Exception {
        StubBundleContext context = new StubBundleContext();

        Activator activator = new Activator();

        activator.start(context);

        assertEquals(0, context.getAllServices().size());
        assertNotSame(1, context.getServiceListeners().size());

        activator.stop(context);

        assertEquals(0, context.getServiceListeners().size());
    }

    @Test
    public void verifyActivatorRegistersServices() throws Exception {
        StubBundleContext context = new StubBundleContext();
        VmInfoDAO vmInfoDao = mock(VmInfoDAO.class);
        VmMemoryStatDAO vmMemoryStatDAO = mock(VmMemoryStatDAO.class);
        HeapDAO heapDAO = mock(HeapDAO.class);
        ApplicationService appSvc = mock(ApplicationService.class);
        
        HeapViewProvider viewProvider = mock(HeapViewProvider.class);
        HeapDumpDetailsViewProvider detailsViewProvider = mock(HeapDumpDetailsViewProvider.class);
        HeapHistogramViewProvider histogramViewProvider = mock(HeapHistogramViewProvider.class);
        HeapTreeMapViewProvider treeMapViewProvider = mock(HeapTreeMapViewProvider.class);
        ObjectDetailsViewProvider objectDetailsViewProvider = mock(ObjectDetailsViewProvider.class);
        ObjectRootsViewProvider objectRootsViewProvider = mock(ObjectRootsViewProvider.class);
        HeapDumpListViewProvider heapDumpListViewProvider = mock(HeapDumpListViewProvider.class);
        ProgressNotifier progressNotifier = mock(ProgressNotifier.class);

        context.registerService(VmInfoDAO.class, vmInfoDao, null);
        context.registerService(VmMemoryStatDAO.class, vmMemoryStatDAO, null);
        context.registerService(HeapDAO.class, heapDAO, null);
        context.registerService(ApplicationService.class, appSvc, null);
        
        context.registerService(HeapViewProvider.class, viewProvider, null);
        context.registerService(HeapDumpDetailsViewProvider.class, detailsViewProvider, null);
        context.registerService(HeapHistogramViewProvider.class, histogramViewProvider, null);
        context.registerService(HeapTreeMapViewProvider.class, treeMapViewProvider, null);
        context.registerService(ObjectDetailsViewProvider.class, objectDetailsViewProvider, null);
        context.registerService(ObjectRootsViewProvider.class, objectRootsViewProvider, null);
        context.registerService(HeapDumpListViewProvider.class, heapDumpListViewProvider, null);
        context.registerService(ProgressNotifier.class, progressNotifier, null);

        Activator activator = new Activator();

        activator.start(context);

        assertTrue(context.isServiceRegistered(InformationService.class.getName(), HeapDumperServiceImpl.class));

        activator.stop(context);

        assertEquals(0, context.getServiceListeners().size());
        assertEquals(12, context.getAllServices().size());
    }

}