Used jMock so extended test class with BriarTestCase.

test/net/sf/briar/plugins/email/GmailPluginTester.java

@@ -11,6 +11,7 @@ import java.util.Set;
 import java.util.Map.Entry;
 import java.util.concurrent.Executors;
 
+import net.sf.briar.BriarTestCase;
 import net.sf.briar.api.ContactId;
 import net.sf.briar.api.TransportConfig;
 import net.sf.briar.api.TransportProperties;
@@ -27,7 +28,7 @@ import org.junit.Test;
  * and CONTACT1_EMAIL - (as recipient email address)
  */
 
-public class GmailPluginTester {
+public class GmailPluginTester extends BriarTestCase {
 
 SimplexPluginCallback callback;	
 TransportProperties local, props1;
@@ -124,9 +125,11 @@ Map<ContactId,TransportProperties> map = new HashMap<ContactId, TransportPropert
 	@Test
 	public void testGmailSMTP()
 	{
+		Mockery context = new Mockery();
 		GmailPlugin pluginTest = new GmailPlugin(Executors.newSingleThreadExecutor(), callback);
 		assertEquals(true, pluginTest.connectSMTP(test1));
 		assertEquals(false, pluginTest.connectSMTP(new ContactId(7)));
+		context.assertIsSatisfied();
 	}
 
 }