public void testDocumentBeGarbageCollectedWhenNotModifiedButOpened () throws Exception {

        content = "Ahoj\nMyDoc";

        javax.swing.text.Document doc = support.openDocument ();

        assertNotNull (doc);

        java.lang.ref.WeakReference ref = new java.lang.ref.WeakReference (doc);

        doc = null;

        assertGC ("Document can dissapear", ref);

        assertFalse ("Document is not loaded", support.isDocumentLoaded ());

        assertTrue ("Can be closed without problems", support.close ());

    }

    public void testDocumentIsNotGCedIfModified () throws Exception {

        content = "Ahoj\nMyDoc";

        javax.swing.text.Document doc = support.openDocument ();

        assertNotNull (doc);

        doc.insertString (0, "Zmena", null);

        assertTrue ("Is modified", support.isModified ());

        java.lang.ref.WeakReference ref = new java.lang.ref.WeakReference (doc);

        doc = null;

        boolean ok;

        try {

            assertGC ("Should fail", ref);

            ok = false;

        } catch (AssertionFailedError expected) {

            ok = true;

        }

        if (!ok) {

            fail ("Document should not disappear, as it is modified");

        }

        assertTrue ("Document remains loaded", support.isDocumentLoaded ());

    }