/*
 * 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.memory.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.common.ApplicationService;
import com.redhat.thermostat.gc.remote.common.GCRequest;
import com.redhat.thermostat.storage.dao.AgentInfoDAO;
import com.redhat.thermostat.storage.dao.VmInfoDAO;
import com.redhat.thermostat.testutils.StubBundleContext;
import com.redhat.thermostat.vm.memory.client.core.MemoryStatsViewProvider;
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);
        ApplicationService appSvc = mock(ApplicationService.class);
        GCRequest gcRequest = mock(GCRequest.class);
        AgentInfoDAO agentInfoDAO = mock(AgentInfoDAO.class);
        MemoryStatsViewProvider viewProvider = mock(MemoryStatsViewProvider.class);

        context.registerService(VmInfoDAO.class, vmInfoDAO, null);
        context.registerService(VmMemoryStatDAO.class, vmMemoryStatDAO, null);
        context.registerService(ApplicationService.class, appSvc, null);
        context.registerService(GCRequest.class, gcRequest, null);
        context.registerService(AgentInfoDAO.class, agentInfoDAO, null);
        context.registerService(MemoryStatsViewProvider.class, viewProvider, null);

        Activator activator = new Activator();

        activator.start(context);

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

        activator.stop(context);

        assertEquals(0, context.getServiceListeners().size());
        assertEquals(6, context.getAllServices().size());
    }

}