feat: add basic support for execute upgrades, download stdout/stderr

upgrade progress is still not being shown yet

tests/util.py

@@ -6,11 +6,12 @@ from unittest.mock import MagicMock
 from pyramid import testing
 
 from wuttjamaican.conf import WuttaConfig
+from wuttjamaican.testing import FileConfigTestCase
 from wuttaweb import subscribers
 from wuttaweb.menus import MenuHandler
 
 
-class DataTestCase(TestCase):
+class DataTestCase(FileConfigTestCase):
     """
     Base class for test suites requiring a full (typical) database.
     """
@@ -19,6 +20,7 @@ class DataTestCase(TestCase):
         self.setup_db()
 
     def setup_db(self):
+        self.setup_files()
         self.config = WuttaConfig(defaults={
             'wutta.db.default.url': 'sqlite://',
         })
@@ -33,7 +35,7 @@ class DataTestCase(TestCase):
         self.teardown_db()
 
     def teardown_db(self):
-        pass
+        self.teardown_files()
 
 
 class WebTestCase(DataTestCase):