unit test for KVMFencer

A few cases covered with unit tests.

Signed-off-by: Laszlo Hornyak <laszlo.hornyak@gmail.com>

server/test/com/cloud/ha/KVMFencerTest.java

@@ -0,0 +1,175 @@
+package com.cloud.ha;
+
+import java.util.Arrays;
+import java.util.Collections;
+
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.Mockito;
+import org.mockito.runners.MockitoJUnitRunner;
+
+import com.cloud.agent.AgentManager;
+import com.cloud.agent.api.FenceAnswer;
+import com.cloud.agent.api.FenceCommand;
+import com.cloud.exception.AgentUnavailableException;
+import com.cloud.exception.OperationTimedoutException;
+import com.cloud.host.HostVO;
+import com.cloud.host.Status;
+import com.cloud.host.dao.HostDao;
+import com.cloud.hypervisor.Hypervisor.HypervisorType;
+import com.cloud.resource.ResourceManager;
+import com.cloud.vm.VirtualMachine;
+
+@RunWith(MockitoJUnitRunner.class)
+public class KVMFencerTest {
+
+    @Mock
+    HostDao hostDao;
+    @Mock
+    AgentManager agentManager;
+    @Mock
+    ResourceManager resourceManager;
+
+    KVMFencer fencer;
+
+    @Before
+    public void setup() {
+        fencer = new KVMFencer();
+        fencer._agentMgr = agentManager;
+        fencer._hostDao = hostDao;
+        fencer._resourceMgr = resourceManager;
+    }
+
+    @Test
+    public void testWithSingleHost() {
+        HostVO host = Mockito.mock(HostVO.class);
+        Mockito.when(host.getClusterId()).thenReturn(1l);
+        Mockito.when(host.getHypervisorType()).thenReturn(HypervisorType.KVM);
+        Mockito.when(host.getStatus()).thenReturn(Status.Up);
+        Mockito.when(host.getId()).thenReturn(1l);
+        VirtualMachine virtualMachine = Mockito.mock(VirtualMachine.class);
+
+        Mockito.when(resourceManager.listAllHostsInCluster(1l)).thenReturn(
+                Collections.singletonList(host));
+        Assert.assertFalse(fencer.fenceOff(virtualMachine, host));
+    }
+
+    @Test
+    public void testWithSingleHostDown() {
+        HostVO host = Mockito.mock(HostVO.class);
+        Mockito.when(host.getClusterId()).thenReturn(1l);
+        Mockito.when(host.getHypervisorType()).thenReturn(HypervisorType.KVM);
+        Mockito.when(host.getStatus()).thenReturn(Status.Down);
+        Mockito.when(host.getId()).thenReturn(1l);
+        VirtualMachine virtualMachine = Mockito.mock(VirtualMachine.class);
+
+        Mockito.when(resourceManager.listAllHostsInCluster(1l)).thenReturn(
+                Collections.singletonList(host));
+        Assert.assertFalse(fencer.fenceOff(virtualMachine, host));
+    }
+
+    @Test
+    public void testWithHosts() throws AgentUnavailableException,
+            OperationTimedoutException {
+        HostVO host = Mockito.mock(HostVO.class);
+        Mockito.when(host.getClusterId()).thenReturn(1l);
+        Mockito.when(host.getHypervisorType()).thenReturn(HypervisorType.KVM);
+        Mockito.when(host.getStatus()).thenReturn(Status.Up);
+        Mockito.when(host.getId()).thenReturn(1l);
+
+        HostVO secondHost = Mockito.mock(HostVO.class);
+        Mockito.when(secondHost.getClusterId()).thenReturn(1l);
+        Mockito.when(secondHost.getHypervisorType()).thenReturn(
+                HypervisorType.KVM);
+        Mockito.when(secondHost.getStatus()).thenReturn(Status.Up);
+        Mockito.when(host.getId()).thenReturn(2l);
+
+        VirtualMachine virtualMachine = Mockito.mock(VirtualMachine.class);
+
+        Mockito.when(resourceManager.listAllHostsInCluster(1l)).thenReturn(
+                Arrays.asList(host, secondHost));
+
+        FenceAnswer answer = new FenceAnswer(null, true, "ok");
+        Mockito.when(
+                agentManager.send(Mockito.anyLong(),
+                        Mockito.any(FenceCommand.class))).thenReturn(answer);
+
+        Assert.assertTrue(fencer.fenceOff(virtualMachine, host));
+    }
+
+    @Test
+    public void testWithFailingFence() throws AgentUnavailableException,
+            OperationTimedoutException {
+        HostVO host = Mockito.mock(HostVO.class);
+        Mockito.when(host.getClusterId()).thenReturn(1l);
+        Mockito.when(host.getHypervisorType()).thenReturn(HypervisorType.KVM);
+        Mockito.when(host.getStatus()).thenReturn(Status.Up);
+        Mockito.when(host.getId()).thenReturn(1l);
+
+        HostVO secondHost = Mockito.mock(HostVO.class);
+        Mockito.when(secondHost.getClusterId()).thenReturn(1l);
+        Mockito.when(secondHost.getHypervisorType()).thenReturn(
+                HypervisorType.KVM);
+        Mockito.when(secondHost.getStatus()).thenReturn(Status.Up);
+        Mockito.when(host.getId()).thenReturn(2l);
+
+        VirtualMachine virtualMachine = Mockito.mock(VirtualMachine.class);
+
+        Mockito.when(resourceManager.listAllHostsInCluster(1l)).thenReturn(
+                Arrays.asList(host, secondHost));
+
+        Mockito.when(
+                agentManager.send(Mockito.anyLong(),
+                        Mockito.any(FenceCommand.class))).thenThrow(
+                new AgentUnavailableException(2l));
+
+        Assert.assertFalse(fencer.fenceOff(virtualMachine, host));
+    }
+
+    @Test
+    public void testWithTimeoutingFence() throws AgentUnavailableException,
+            OperationTimedoutException {
+        HostVO host = Mockito.mock(HostVO.class);
+        Mockito.when(host.getClusterId()).thenReturn(1l);
+        Mockito.when(host.getHypervisorType()).thenReturn(HypervisorType.KVM);
+        Mockito.when(host.getStatus()).thenReturn(Status.Up);
+        Mockito.when(host.getId()).thenReturn(1l);
+
+        HostVO secondHost = Mockito.mock(HostVO.class);
+        Mockito.when(secondHost.getClusterId()).thenReturn(1l);
+        Mockito.when(secondHost.getHypervisorType()).thenReturn(
+                HypervisorType.KVM);
+        Mockito.when(secondHost.getStatus()).thenReturn(Status.Up);
+        Mockito.when(host.getId()).thenReturn(2l);
+
+        VirtualMachine virtualMachine = Mockito.mock(VirtualMachine.class);
+
+        Mockito.when(resourceManager.listAllHostsInCluster(1l)).thenReturn(
+                Arrays.asList(host, secondHost));
+
+        Mockito.when(
+                agentManager.send(Mockito.anyLong(),
+                        Mockito.any(FenceCommand.class))).thenThrow(
+                new OperationTimedoutException(null, 2l, 0l, 0, false));
+
+        Assert.assertFalse(fencer.fenceOff(virtualMachine, host));
+    }
+
+    @Test
+    public void testWithSingleNotKVM() {
+        HostVO host = Mockito.mock(HostVO.class);
+        Mockito.when(host.getClusterId()).thenReturn(1l);
+        Mockito.when(host.getHypervisorType()).thenReturn(HypervisorType.Any);
+        Mockito.when(host.getStatus()).thenReturn(Status.Down);
+        Mockito.when(host.getId()).thenReturn(1l);
+        VirtualMachine virtualMachine = Mockito.mock(VirtualMachine.class);
+
+        Mockito.when(resourceManager.listAllHostsInCluster(1l)).thenReturn(
+                Collections.singletonList(host));
+        Assert.assertNull(fencer.fenceOff(virtualMachine, host));
+    }
+
+}