be test friendly

platform/vcs-impl/src/com/intellij/openapi/vcs/ZipperUpdater.java

@@ -41,6 +41,7 @@ public class ZipperUpdater {
 
   public void queue(final Runnable runnable, final boolean urgent) {
     synchronized (myLock) {
+      if (myAlarm.isDisposed()) return;
       final boolean wasRaised = myRaised;
       myRaised = true;
       if (! wasRaised) {

platform/vcs-impl/src/com/intellij/openapi/vcs/changes/ui/CommitChangeListDialog.java

@@ -155,7 +155,12 @@ public class CommitChangeListDialog extends DialogWrapper implements CheckinProj
     CommitChangeListDialog dialog =
       new CommitChangeListDialog(project, changes, initialSelection, executors, showVcsCommit, defaultList, changeLists, null, false,
                                  comment);
-    dialog.show();
+    if (!ApplicationManager.getApplication().isUnitTestMode()) {
+      dialog.show();
+    }
+    else {
+      dialog.doOKAction();
+    }
     return dialog.isOK();
   }
 
@@ -193,7 +198,7 @@ public class CommitChangeListDialog extends DialogWrapper implements CheckinProj
 
   public static boolean commitChanges(final Project project, final Collection<Change> changes, final LocalChangeList initialSelection,
                                    final List<CommitExecutor> executors, final boolean showVcsCommit, final String comment) {
-    if (changes.isEmpty()) {
+    if (changes.isEmpty() && !ApplicationManager.getApplication().isUnitTestMode()) {
       Messages.showInfoMessage(project, VcsBundle.message("commit.dialog.no.changes.detected.text") ,
                                  VcsBundle.message("commit.dialog.no.changes.detected.title"));
       return false;

platform/vcs-impl/src/com/intellij/openapi/vcs/impl/ProjectLevelVcsManagerImpl.java

@@ -581,8 +581,8 @@ public void addMessageToConsoleWindow(final String message, final TextAttributes
   }
 
   public void stopBackgroundVcsOperation() {
-    // in fact, the condition is "should not be called under ApplicationManager.invokeLater() and similiar"
-    assert ! ApplicationManager.getApplication().isDispatchThread();
+    // in fact, the condition is "should not be called under ApplicationManager.invokeLater() and similar"
+    assert !ApplicationManager.getApplication().isDispatchThread() || ApplicationManager.getApplication().isUnitTestMode();
     LOG.assertTrue(myBackgroundOperationCounter > 0, "myBackgroundOperationCounter > 0");
     myBackgroundOperationCounter--;
   }