Draft: Introduce base classes for Draft tests

To avoid code duplication.

src/Mod/Draft/drafttests/test_base.py

@@ -0,0 +1,56 @@
+# SPDX-License-Identifier: LGPL-2.1-or-later
+# ***************************************************************************
+# *                                                                         *
+# *   Copyright (c) 2025 FreeCAD Project Association                        *
+# *                                                                         *
+# *   This file is part of FreeCAD.                                         *
+# *                                                                         *
+# *   FreeCAD is free software: you can redistribute it and/or modify it    *
+# *   under the terms of the GNU Lesser General Public License as           *
+# *   published by the Free Software Foundation, either version 2.1 of the  *
+# *   License, or (at your option) any later version.                       *
+# *                                                                         *
+# *   FreeCAD is distributed in the hope that it will be useful, but        *
+# *   WITHOUT ANY WARRANTY; without even the implied warranty of            *
+# *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU      *
+# *   Lesser General Public License for more details.                       *
+# *                                                                         *
+# *   You should have received a copy of the GNU Lesser General Public      *
+# *   License along with FreeCAD. If not, see                               *
+# *   <https://www.gnu.org/licenses/>.                                      *
+# *                                                                         *
+# ***************************************************************************
+
+import unittest
+
+import FreeCAD as App
+from drafttests import auxiliary as aux
+from draftutils.messages import _msg
+from draftutils.todo import ToDo
+
+
+class DraftTestCaseDoc(unittest.TestCase):
+    """Base class for Draft tests that require a document."""
+
+    def setUp(self):
+        """Set up a new document for each test."""
+        aux.draw_header()
+        # name = self.__class__.__name__
+        name = "___".join(self.id().split(".")[2:])  # unique name for each test
+        if not name in App.listDocuments():
+            App.newDocument(name)
+        App.setActiveDocument(name)
+        self.doc = App.ActiveDocument
+        _msg("  Temporary document '{}'".format(self.doc.Name))
+
+    def tearDown(self):
+        """Close the document after each test."""
+        App.closeDocument(self.doc.Name)
+
+
+class DraftTestCaseNoDoc(unittest.TestCase):
+    """Base class for Draft tests that do not require a document."""
+
+    def setUp(self):
+        """Draw the header."""
+        aux.draw_header()