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 package edu.rice.cs.drjava.model.repl;

 import edu.rice.cs.drjava.DrJavaTestCase;

 import edu.rice.cs.drjava.model.GlobalModel;

 import edu.rice.cs.drjava.ui.MainFrame;

 import edu.rice.cs.util.text.EditDocumentException;

 import edu.rice.cs.util.swing.Utilities;

 import java.io.File;

 /** Tests the functionality of the InteractionsDJDocument. */

 public final class InteractionsDJDocumentTest extends DrJavaTestCase {

   protected InteractionsDJDocument _adapter;

   protected InteractionsModel _model;

   protected InteractionsDocument _doc;

   protected MainFrame mf;

   /** Initialize fields for each test. */

   protected void setUp() throws Exception {

     super.setUp();

     // MainFrame creation must run in event thread because event thread is already running

     Utilities.invokeAndWait(new Runnable() {

       public void run() {

         mf = new MainFrame();

         GlobalModel gm = mf.getModel();

         _model = gm.getInteractionsModel();

         _adapter = gm.getSwingInteractionsDocument();

         _doc = gm.getInteractionsDocument();

         assert _model._pane != null;  // MainFrame creates an interactions controller which creates the pane.

       }

     });

   }

   private boolean _interpreterRestarted = false;

   public void test1() {

     try { helpTestStylesListContentAndReset(); }

     catch(Throwable t) { t.printStackTrace(); }

   }

   /** Tests that the styles list is updated and reset properly */

   public void helpTestStylesListContentAndReset() throws EditDocumentException, InterruptedException {

 //    System.err.println("testStylesList started");

     /* The banner and the prompt are inserted in the styles list when the document is constructed; the corresponding

        offsets are computed in the tests below. 

      */

     final Object _restartLock = new Object();

     assertEquals("StylesList before insert should contain 2 pairs", 2, _adapter.getStyles().length);

 //    System.err.println("Styles:\n" + Arrays.toString(_adapter.getStyles()));

     int blen = _model.getStartUpBanner().length();

 //    System.err.println("StartUpBanner:\n'" + _model.getStartUpBanner() + "'");

 //    System.err.println("length = " +  _model.getStartUpBanner().length());

 //    System.err.println("Banner:\n'" + _model.getBanner() + "'");

 //    System.err.println("length = " +  _model.getBanner().length());                   

     /** Elt1, Elt2 are first two elements pushed on the StylesList stack */

     String styleElt1 = "((0, " + blen + "), object.return.style)";

     String styleElt2 = "((" + blen + ", " + (blen + 2) + "), default)";

     assertEquals("The first element pushed on StylesList before insertion should be", styleElt1,

                  _adapter.getStyles()[1].toString());

     assertEquals("The second element pushed on StylesList before insertion should be", styleElt2,

                  _adapter.getStyles()[0].toString());

     // Insert some text

     _doc.append("5", InteractionsDocument.NUMBER_RETURN_STYLE);

     /* Third element pushed StylesList stack before reset */

     String styleElt3 = "((" + (blen + 2) + ", " + (blen + 3) + "), number.return.style)";

     assertEquals("StylesList before reset should contain 3 pairs", 3, _adapter.getStyles().length);

     assertEquals("The first element pushed on StylesList before reset should be", styleElt1,

                  _adapter.getStyles()[2].toString());

     assertEquals("The second element pushed on StylesList before reset should be", styleElt2,

                  _adapter.getStyles()[1].toString());

     assertEquals("The last element pushed on StylesList before reset should be", styleElt3,

                  _adapter.getStyles()[0].toString());

 //    System.err.println("Doc text: " + _adapter.getText());

 //    System.err.println("The styles list is: " + _adapter.getStylesList());

 //    System.err.println("The length of the startUp banner is: " + InteractionsModel.getStartUpBanner().length());

     /* Reset interactions and wait until it completes */

 //    System.err.println("reset interactions test reached");

     InteractionsListener restartCommand = new DummyInteractionsListener() {

       public void interpreterReady(File wd) {

         synchronized(_restartLock) {

           _interpreterRestarted = true;

           _restartLock.notify();

         }

       }};

     _model.addListener(restartCommand);

     // Reset should clear

     _model.setWaitingForFirstInterpreter(false);

     synchronized(_restartLock) { _interpreterRestarted = false; }

     // Reset the interactions pane, restarting the interpreter

     File f = _model.getWorkingDirectory();

     _model.resetInterpreter(f, true);

 //    System.err.println("Interpreter reset");

     // Wait until interpreter has restarted

     synchronized(_restartLock) { while (! _interpreterRestarted) _restartLock.wait(); }

     _model.removeListener(restartCommand);

 //    System.err.println("Doc text: " + _adapter.getText());

 //    System.err.println("Text length: " + _adapter.getLength());

 //    System.err.println("The styles list is: " + _adapter.getStylesList());

     Utilities.clearEventQueue();  // assures that pending updates to _pane have been performed

     assertEquals("StylesList after reset should contain 2 pairs", 2, _adapter.getStyles().length);

     assertEquals("The first element pushed on StylesList after reset should be", styleElt1,

                  _adapter.getStyles()[1].toString());

     assertEquals("The second element pushed on StylesList after reset should be", styleElt2,

                  _adapter.getStyles()[0].toString());

 //    System.err.println("testStylesList complete");

   }

   public void test2() {

     try { helpTestCannotAddNullStyleToList(); }

     catch(Throwable t) { t.printStackTrace(); }

   }

   /** Tests that a null style is not added to the list. Fix for bug #995719. */

   public void helpTestCannotAddNullStyleToList() throws EditDocumentException {

 //    System.err.println("testCannotAddNull started");

     // the banner and the prompt are inserted in the styles list when the document is constructed

     assertEquals("StylesList before insert should contain 2 pairs", 2, _adapter.getStyles().length);

     // Insert some text

     _doc.append("5", InteractionsDocument.NUMBER_RETURN_STYLE);

     Utilities.clearEventQueue();

     assertEquals("StylesList should contain 3 pairs", 3, _adapter.getStyles().length);

     // Insert some text with a null style

     _doc.append("6", null);

      Utilities.clearEventQueue();

     assertEquals("StylesList should still contain 3 pairs - null string should not have been inserted",

                  3, _adapter.getStyles().length);

   }

 }