view vm-cpu/common/src/test/java/com/redhat/thermostat/vm/cpu/common/internal/VmCpuStatDAOTest.java @ 935:186115da601f

Make common-core not depend on storage-core. Reviewed-by: vanaltj, omajid, ebaron Review-thread: http://icedtea.classpath.org/pipermail/thermostat/2013-January/005042.html
author Severin Gehwolf <sgehwolf@redhat.com>
date Wed, 16 Jan 2013 18:58:59 +0100
parents ccac9bcabaa0
children
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/*
 * Copyright 2012, 2013 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.cpu.common.internal;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import static org.mockito.Matchers.any;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.verifyNoMoreInteractions;
import static org.mockito.Mockito.when;

import java.util.Collection;
import java.util.List;

import org.junit.Before;
import org.junit.Test;

import com.redhat.thermostat.storage.core.Add;
import com.redhat.thermostat.storage.core.Category;
import com.redhat.thermostat.storage.core.HostRef;
import com.redhat.thermostat.storage.core.VmRef;
import com.redhat.thermostat.storage.core.Cursor;
import com.redhat.thermostat.storage.core.Key;
import com.redhat.thermostat.storage.core.Query;
import com.redhat.thermostat.storage.core.Query.Criteria;
import com.redhat.thermostat.storage.core.Storage;
import com.redhat.thermostat.storage.model.VmCpuStat;
import com.redhat.thermostat.vm.cpu.common.VmCpuStatDAO;

public class VmCpuStatDAOTest {

    private static final Long TIMESTAMP = 1234L;
    private static final Integer VM_ID = 321;
    private static final Double CPU_LOAD = 9.9;

    private VmCpuStat cpuStat;

    @Before
    public void setUp() {
        cpuStat = new VmCpuStat(TIMESTAMP, VM_ID, CPU_LOAD);
    }

    @Test
    public void testCategory() {
        assertEquals("vm-cpu-stats", VmCpuStatDAO.vmCpuStatCategory.getName());
        Collection<Key<?>> keys = VmCpuStatDAO.vmCpuStatCategory.getKeys();
        assertTrue(keys.contains(new Key<>("agentId", true)));
        assertTrue(keys.contains(new Key<Long>("timeStamp", false)));
        assertTrue(keys.contains(new Key<Integer>("vmId", true)));
        assertTrue(keys.contains(new Key<Integer>("cpuLoad", false)));
        assertEquals(4, keys.size());
    }

    @Test
    public void testGetLatestCpuStatsBasic() {

        @SuppressWarnings("unchecked")
        Cursor<VmCpuStat> cursor = mock(Cursor.class);
        when(cursor.hasNext()).thenReturn(true).thenReturn(false);
        when(cursor.next()).thenReturn(cpuStat);

        Storage storage = mock(Storage.class);
        Query query = mock(Query.class);
        when(storage.createQuery(any(Category.class))).thenReturn(query);
        when(query.execute()).thenReturn(cursor);

        HostRef hostRef = mock(HostRef.class);
        when(hostRef.getAgentId()).thenReturn("system");

        VmRef vmRef = mock(VmRef.class);
        when(vmRef.getAgent()).thenReturn(hostRef);
        when(vmRef.getId()).thenReturn(VM_ID);


        VmCpuStatDAO dao = new VmCpuStatDAOImpl(storage);
        List<VmCpuStat> vmCpuStats = dao.getLatestVmCpuStats(vmRef, Long.MIN_VALUE);

        verify(storage).createQuery(VmCpuStatDAO.vmCpuStatCategory);
        verify(query).where(Key.TIMESTAMP, Criteria.GREATER_THAN, Long.MIN_VALUE);
        verify(query).where(Key.AGENT_ID, Criteria.EQUALS, vmRef.getAgent().getAgentId());
        verify(query).where(Key.VM_ID, Criteria.EQUALS, vmRef.getId());
        verify(query).sort(Key.TIMESTAMP, Query.SortDirection.DESCENDING);
        verify(query).execute();
        verifyNoMoreInteractions(query);

        assertEquals(1, vmCpuStats.size());
        VmCpuStat stat = vmCpuStats.get(0);
        assertEquals(TIMESTAMP, (Long) stat.getTimeStamp());
        assertEquals(CPU_LOAD, stat.getCpuLoad(), 0.001);
        assertEquals(VM_ID, (Integer) stat.getVmId());
    }

    @Test
    public void testPutVmCpuStat() {
        Storage storage = mock(Storage.class);
        Add add = mock(Add.class);
        when(storage.createAdd(any(Category.class))).thenReturn(add);
        
        VmCpuStat stat = new VmCpuStat(TIMESTAMP, VM_ID, CPU_LOAD);
        VmCpuStatDAO dao = new VmCpuStatDAOImpl(storage);
        dao.putVmCpuStat(stat);

        verify(storage).createAdd(VmCpuStatDAO.vmCpuStatCategory);
        verify(add).setPojo(stat);
        verify(add).apply();

    }
}