[github-tests] Fix the Project leak: cleanup components on tearDown

plugins/git4idea/testFramework/git4idea/remote/GitHttpAuthTestService.java

@@ -28,7 +28,7 @@ import org.jetbrains.annotations.Nullable;
  */
 public class GitHttpAuthTestService extends GitHttpAuthService {
 
-  @NotNull private GitHttpAuthenticator myAuthenticator = new GitHttpAuthenticator() {
+  public static final GitHttpAuthenticator STUB_AUTHENTICATOR = new GitHttpAuthenticator() {
     @NotNull
     @Override
     public String askPassword(@NotNull String url) {
@@ -52,6 +52,8 @@ public class GitHttpAuthTestService extends GitHttpAuthService {
     }
   };
 
+  @NotNull private GitHttpAuthenticator myAuthenticator = STUB_AUTHENTICATOR;
+
   @NotNull
   @Override
   public GitHttpAuthenticator createAuthenticator(@NotNull Project project, @Nullable ModalityState state, @NotNull GitCommand command,
@@ -63,4 +65,8 @@ public class GitHttpAuthTestService extends GitHttpAuthService {
     myAuthenticator = authenticator;
   }
 
+  public void cleanup() {
+    myAuthenticator = STUB_AUTHENTICATOR;
+  }
+
 }

plugins/git4idea/testFramework/git4idea/test/TestDialogManager.java

@@ -53,4 +53,8 @@ public class TestDialogManager extends DialogManager {
     myHandlers.put(dialogClass, handler);
   }
 
+  public void cleanup() {
+    myHandlers.clear();
+  }
+
 }

plugins/git4idea/testFramework/git4idea/test/TestNotificator.java

@@ -78,4 +78,7 @@ public class TestNotificator extends Notificator {
     myLastNotification = createNotification(notificationGroup, title, message, type, listener);
   }
 
+  public void cleanup() {
+    myLastNotification = null;
+  }
 }

plugins/github/test/org/jetbrains/plugins/github/test/GithubTest.java

@@ -37,7 +37,6 @@ import git4idea.test.TestDialogManager;
 import git4idea.test.TestNotificator;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
-import org.jetbrains.plugins.github.GithubAuthData;
 import org.jetbrains.plugins.github.GithubSettings;
 
 import static org.junit.Assume.assumeNotNull;
@@ -63,6 +62,7 @@ public abstract class GithubTest extends UsefulTestCase {
   @NotNull protected VirtualFile myProjectRoot;
   @NotNull protected GitVcsSettings myGitSettings;
   @NotNull protected GithubSettings myGitHubSettings;
+  @NotNull private GitHttpAuthTestService myHttpAuthService;
 
   @NotNull protected TestDialogManager myDialogManager;
   @NotNull protected TestNotificator myNotificator;
@@ -163,10 +163,15 @@ public abstract class GithubTest extends UsefulTestCase {
 
     myDialogManager = (TestDialogManager)ServiceManager.getService(DialogManager.class);
     myNotificator = (TestNotificator)ServiceManager.getService(myProject, Notificator.class);
+    myHttpAuthService = (GitHttpAuthTestService)ServiceManager.getService(GitHttpAuthService.class);
   }
 
   @Override
   protected void tearDown() throws Exception {
+    myHttpAuthService.cleanup();
+    myDialogManager.cleanup();
+    myNotificator.cleanup();
+
     myProjectFixture.tearDown();
     super.tearDown();
   }