Clean up the tests

pf4j/src/test/java/ro/fortsoft/pf4j/DefaultExtensionFactoryTest.java

@@ -28,17 +28,6 @@ import static org.junit.Assert.*;
  */
 public class DefaultExtensionFactoryTest {
 
-    public DefaultExtensionFactoryTest() {
-    }
-
-    @Before
-    public void setUp() {
-    }
-
-    @After
-    public void tearDown() {
-    }
-
     /**
      * Test of create method, of class DefaultExtensionFactory.
      */

pf4j/src/test/java/ro/fortsoft/pf4j/DefaultPluginFactoryTest.java

@@ -35,17 +35,6 @@ import static org.mockito.Mockito.when;
  */
 public class DefaultPluginFactoryTest {
 
-    public DefaultPluginFactoryTest() {
-    }
-
-    @Before
-    public void setUp() {
-    }
-
-    @After
-    public void tearDown() {
-    }
-
     /**
      * Test of create method, of class DefaultPluginFactory.
      */

pf4j/src/test/java/ro/fortsoft/pf4j/DefaultPluginRepositoryTest.java

@@ -39,9 +39,6 @@ public class DefaultPluginRepositoryTest {
     @Rule
     public TemporaryFolder testFolder = new TemporaryFolder();
 
-    public DefaultPluginRepositoryTest() {
-    }
-
     @Before
     public void setUp() throws IOException {
         testFolder.newFile("plugin-1.zip");
@@ -49,10 +46,6 @@ public class DefaultPluginRepositoryTest {
         testFolder.newFile("plugin-3.zi_");
     }
 
-    @After
-    public void tearDown() {
-    }
-
     /**
      * Test of getPluginArchives method, of class DefaultPluginRepository.
      */

pf4j/src/test/java/ro/fortsoft/pf4j/DefaultPluginStatusProviderTest.java

@@ -27,7 +27,6 @@ import org.junit.Rule;
 import org.junit.Test;
 import org.junit.rules.TemporaryFolder;
 
-import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertTrue;
 
@@ -41,9 +40,6 @@ public class DefaultPluginStatusProviderTest {
     @Rule
     public TemporaryFolder testFolder = new TemporaryFolder();
 
-    public DefaultPluginStatusProviderTest() {
-    }
-
     @Before
     public void setUp() throws IOException {
         File file = testFolder.newFile("disabled.txt");
@@ -62,10 +58,6 @@ public class DefaultPluginStatusProviderTest {
         }
     }
 
-    @After
-    public void tearDown() {
-    }
-
     /**
      * Test of isPluginDisabled method, of class DefaultPluginStatusProvider.
      */

pf4j/src/test/java/ro/fortsoft/pf4j/plugin/TestExtension.java

@@ -15,10 +15,12 @@
  */
 package ro.fortsoft.pf4j.plugin;
 
+import ro.fortsoft.pf4j.ExtensionPoint;
+
 /**
  *
  * @author Mario Franco
  */
-public class TestExtension {
+public class TestExtension implements ExtensionPoint {
 
 }