Mercurial > hg > release > thermostat-0.5
view vm-memory/agent/src/test/java/com/redhat/thermostat/vm/memory/agent/internal/VmMemoryBackendTest.java @ 925:259c60624174
Update all Backends to use new API for Vm start/stop
Reviewed-by: ebaron
Review-thread: http://icedtea.classpath.org/pipermail/thermostat/2013-January/005252.html
PR 1258
author | Omair Majid <omajid@redhat.com> |
---|---|
date | Mon, 21 Jan 2013 13:48:50 -0500 |
parents | 0ba74f790a8a |
children | ccac9bcabaa0 |
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/* * Copyright 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.memory.agent.internal; import static org.junit.Assert.assertFalse; import static org.junit.Assert.assertTrue; import static org.mockito.Matchers.isA; import static org.mockito.Mockito.doThrow; 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.net.URISyntaxException; import org.junit.Before; import org.junit.Test; import org.mockito.ArgumentCaptor; import org.mockito.invocation.InvocationOnMock; import org.mockito.stubbing.Answer; import sun.jvmstat.monitor.HostIdentifier; import sun.jvmstat.monitor.MonitorException; import sun.jvmstat.monitor.MonitoredHost; import sun.jvmstat.monitor.MonitoredVm; import sun.jvmstat.monitor.VmIdentifier; import sun.jvmstat.monitor.event.VmListener; import com.redhat.thermostat.agent.VmStatusListener.Status; import com.redhat.thermostat.agent.VmStatusListenerRegistrar; import com.redhat.thermostat.common.Ordered; import com.redhat.thermostat.common.Version; import com.redhat.thermostat.vm.memory.common.VmMemoryStatDAO; public class VmMemoryBackendTest { private VmMemoryBackend backend; private MonitoredHost host; private VmStatusListenerRegistrar registrar; private VmMemoryStatDAO vmMemoryStatDao; @Before public void setup() throws MonitorException, URISyntaxException { vmMemoryStatDao = mock(VmMemoryStatDAO.class); Version version = mock(Version.class); when(version.getVersionNumber()).thenReturn("0.0.0"); registrar = mock(VmStatusListenerRegistrar.class); backend = new VmMemoryBackend(vmMemoryStatDao, version, registrar); HostIdentifier hostIdentifier = mock(HostIdentifier.class); when(hostIdentifier.resolve(isA(VmIdentifier.class))).then(new Answer<VmIdentifier>() { @Override public VmIdentifier answer(InvocationOnMock invocation) throws Throwable { return (VmIdentifier) invocation.getArguments()[0]; } }); host = mock(MonitoredHost.class); when(host.getHostIdentifier()).thenReturn(hostIdentifier); backend.setHost(host); } @Test public void testActivate() { assertTrue(backend.activate()); verify(registrar).register(backend); assertTrue(backend.isActive()); } @Test public void testActivateTwice() { assertTrue(backend.activate()); assertTrue(backend.isActive()); assertTrue(backend.activate()); assertTrue(backend.isActive()); verify(registrar).register(backend); } @Test public void testActivateFailsIfHostIsNull() { backend.setHost(null); assertFalse(backend.activate()); } @Test public void testDeactivate() { backend.activate(); backend.deactivate(); verify(registrar).unregister(backend); assertFalse(backend.isActive()); } @Test public void testDeactiveTwice() { assertTrue(backend.activate()); assertTrue(backend.deactivate()); assertFalse(backend.isActive()); assertTrue(backend.deactivate()); assertFalse(backend.isActive()); verify(registrar).unregister(backend); } @Test public void testNewVmStarted() throws URISyntaxException, MonitorException { int VM_PID = 10; VmIdentifier VM_ID = new VmIdentifier(String.valueOf(VM_PID)); MonitoredVm monitoredVm = mock(MonitoredVm.class); when(host.getMonitoredVm(VM_ID)).thenReturn(monitoredVm); backend.vmStatusChanged(Status.VM_STARTED, VM_PID); verify(monitoredVm).addVmListener(isA(VmMemoryVmListener.class)); } @Test public void testErrorInAttachingToNewVm() throws MonitorException, URISyntaxException { int VM_PID = 10; VmIdentifier VM_ID = new VmIdentifier(String.valueOf(VM_PID)); when(host.getMonitoredVm(VM_ID)).thenThrow(new MonitorException()); backend.vmStatusChanged(Status.VM_STARTED, VM_PID); } @Test public void testVmStopped() throws URISyntaxException, MonitorException { int VM_PID = 10; VmIdentifier VM_ID = new VmIdentifier(String.valueOf(VM_PID)); MonitoredVm monitoredVm = mock(MonitoredVm.class); when(host.getMonitoredVm(VM_ID)).thenReturn(monitoredVm); backend.vmStatusChanged(Status.VM_STARTED, VM_PID); ArgumentCaptor<VmListener> listenerCaptor = ArgumentCaptor.forClass(VmListener.class); verify(monitoredVm).addVmListener(listenerCaptor.capture()); backend.vmStatusChanged(Status.VM_STOPPED, VM_PID); verify(monitoredVm).removeVmListener(listenerCaptor.getValue()); verify(monitoredVm).detach(); } @Test public void testUnknownVmStoppedIsIgnored() { int VM_PID = 10; backend.vmStatusChanged(Status.VM_STOPPED, VM_PID); verifyNoMoreInteractions(host, vmMemoryStatDao); } @Test public void testStoppedVmIsDetachedEvenInPresenceOfErrors() throws URISyntaxException, MonitorException { int VM_PID = 10; VmIdentifier VM_ID = new VmIdentifier(String.valueOf(VM_PID)); MonitoredVm monitoredVm = mock(MonitoredVm.class); when(host.getMonitoredVm(VM_ID)).thenReturn(monitoredVm); backend.vmStatusChanged(Status.VM_STARTED, VM_PID); ArgumentCaptor<VmListener> listenerCaptor = ArgumentCaptor.forClass(VmListener.class); verify(monitoredVm).addVmListener(listenerCaptor.capture()); VmListener vmListener = listenerCaptor.getValue(); doThrow(new MonitorException("test")).when(monitoredVm).removeVmListener(vmListener); backend.vmStatusChanged(Status.VM_STOPPED, VM_PID); verify(monitoredVm).detach(); } @Test public void testOrderValue() { int orderValue = backend.getOrderValue(); assertTrue(orderValue > Ordered.ORDER_MEMORY_GROUP); assertTrue(orderValue < Ordered.ORDER_NETWORK_GROUP); } }