add new unit tests for plugin

This commit adds a few unit tests for the gearman-plugin.
A few things were refactored from creating the tests.
1. move methods from GearmanPluginUtil to GearmanPluginConfig
2. removed a few unused methods.

Change-Id: I8ccd0000ff528867c66958294192818f35d83383

src/test/java/hudson/plugins/gearman/AbstractWorkerThreadTest.java

@@ -0,0 +1,77 @@
+/*
+ *
+ * Copyright 2013 Hewlett-Packard Development Company, L.P.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+package hudson.plugins.gearman;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+import static org.mockito.Mockito.doNothing;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
+import org.gearman.common.GearmanNIOJobServerConnection;
+import org.gearman.worker.GearmanWorker;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.powermock.core.classloader.annotations.PrepareForTest;
+
+/**
+ * Test for the {@link AbstractWorkerThread} class.
+ *
+ * @author Khai Do
+ */
+@PrepareForTest(GearmanWorker.class)
+public class AbstractWorkerThreadTest {
+
+    /**
+   */
+    @Before
+    public void setUp() {
+        GearmanWorker gearmanWorker = mock(GearmanWorker.class);
+        GearmanNIOJobServerConnection conn = new GearmanNIOJobServerConnection("localhost", 4730);
+        doNothing().when(gearmanWorker).work();
+        when(gearmanWorker.addServer(conn)).thenReturn(true);
+    }
+
+    @After
+    public void tearDown() throws Exception {
+    }
+
+    @Test
+    public void testAnonymousThread() {
+        AbstractWorkerThread fakeWorker = new FakeWorkerThread("GearmanServer", 4730);
+        assertEquals("anonymous", fakeWorker.getName());
+    }
+
+    @Test
+    public void testNamedThread() {
+        AbstractWorkerThread fakeWorker = new FakeWorkerThread("GearmanServer", 4730, "faker");
+        assertEquals("faker", fakeWorker.getName());
+    }
+
+    @Test
+    public void testStartStopThread() {
+        AbstractWorkerThread fakeWorker = new FakeWorkerThread("GearmanServer", 4730);
+        fakeWorker.start();
+        assertTrue(fakeWorker.isAlive());
+        fakeWorker.stop();
+        assertFalse(fakeWorker.isAlive());
+    }
+}

src/test/java/hudson/plugins/gearman/FakeWorkerThread.java

@@ -0,0 +1,61 @@
+/*
+ *
+ * Copyright 2013 Hewlett-Packard Development Company, L.P.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+package hudson.plugins.gearman;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+
+/*
+ * This a fake worker which is only used for testing
+ *
+ * @author Khai Do
+ *
+ */
+public class FakeWorkerThread extends AbstractWorkerThread{
+
+    private static final Logger logger = LoggerFactory
+            .getLogger(Constants.PLUGIN_LOGGER_NAME);
+
+    // constructor
+    public FakeWorkerThread(String host, int port) {
+        super(host, port);
+    }
+
+    public FakeWorkerThread(String host, int port, String name) {
+        super(host, port, name);
+    }
+
+    /**
+     * Fake registerJobs
+     */
+    @Override
+    public void registerJobs() {
+
+    }
+
+    /**
+     * Fake run
+     */
+    @Override
+    public void run() {
+
+    }
+
+}

src/test/java/hudson/plugins/gearman/GearmanPluginConfigTest.java

@@ -0,0 +1,77 @@
+/*
+ *
+ * Copyright 2013 Hewlett-Packard Development Company, L.P.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+package hudson.plugins.gearman;
+
+import static org.junit.Assert.assertEquals;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+import jenkins.model.Jenkins;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.rules.TemporaryFolder;
+import org.junit.runner.RunWith;
+import org.powermock.api.mockito.PowerMockito;
+import org.powermock.core.classloader.annotations.PrepareForTest;
+import org.powermock.modules.junit4.PowerMockRunner;
+
+/**
+ * Test for the {@link GearmanPluginConfig} class.
+ *
+ * @author Khai Do
+ */
+@RunWith(PowerMockRunner.class)
+@PrepareForTest(Jenkins.class)
+public class GearmanPluginConfigTest {
+
+    private GearmanPluginConfig gpc;
+
+    /**
+   */
+    @Before
+    public void setUp() {
+        TemporaryFolder folder = new TemporaryFolder();
+        Jenkins jenkins = mock(Jenkins.class);
+        PowerMockito.mockStatic(Jenkins.class);
+        when(Jenkins.getInstance()).thenReturn(jenkins);
+
+        gpc = new GearmanPluginConfig();
+    }
+
+    @After
+    public void tearDown() throws Exception {
+    }
+
+    @Test
+    public void testDefaultGearmanHost() {
+        assertEquals(Constants.GEARMAN_DEFAULT_TCP_HOST, gpc.getHost());
+    }
+
+    @Test
+    public void testDefaultGearmanPort() {
+        assertEquals(Constants.GEARMAN_DEFAULT_TCP_PORT, gpc.getPort());
+    }
+
+    @Test
+    public void testDefaultLaunchWorker() {
+        assertEquals(Constants.GEARMAN_DEFAULT_LAUNCH_WORKER,
+                gpc.launchWorker());
+    }
+}

src/test/java/hudson/plugins/gearman/ManagementWorkerThreadTest.java

@@ -0,0 +1,64 @@
+/*
+ *
+ * Copyright 2013 Hewlett-Packard Development Company, L.P.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+package hudson.plugins.gearman;
+
+import static org.junit.Assert.assertEquals;
+import static org.mockito.Mockito.doNothing;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
+import java.util.Set;
+
+import org.gearman.common.GearmanNIOJobServerConnection;
+import org.gearman.worker.GearmanWorker;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.powermock.core.classloader.annotations.PrepareForTest;
+
+/**
+ * Test for the {@link ManagementWorkerThread} class.
+ *
+ * @author Khai Do
+ */
+@PrepareForTest(GearmanWorker.class)
+public class ManagementWorkerThreadTest {
+
+    /**
+   */
+    @Before
+    public void setUp() {
+        GearmanWorker gearmanWorker = mock(GearmanWorker.class);
+        GearmanNIOJobServerConnection conn = new GearmanNIOJobServerConnection("localhost", 4730);
+        doNothing().when(gearmanWorker).work();
+        when(gearmanWorker.addServer(conn)).thenReturn(true);
+    }
+
+    @After
+    public void tearDown() throws Exception {
+    }
+
+    @Test
+    public void testRegisterJobs() {
+        AbstractWorkerThread manager = new ManagementWorkerThread("GearmanServer", 4730, "MyWorker" );
+        manager.registerJobs();
+        Set<String> functions = manager.worker.getRegisteredFunctions();
+        assertEquals("stop:GearmanServer", functions.toArray()[0]);
+    }
+}