feat: add concept of (non-)default importers for handler

i.e. when telling handler to "import all" which should be included
vs. excluded by default?

tests/cli/test_base.py

@@ -3,7 +3,7 @@
 import inspect
 import sys
 from unittest import TestCase
-from unittest.mock import patch, Mock
+from unittest.mock import patch, Mock, call
 
 from wuttasync.cli import base as mod
 from wuttjamaican.testing import DataTestCase
@@ -169,22 +169,60 @@ class TestImportCommandHandler(DataTestCase):
                     params={},
                 ),
             )
-            # self.assertRaises(FileNotFoundError, handler.run, ctx)
             handler.run(ctx)
             exit_.assert_not_called()
 
     def test_list_models(self):
+
+        # CSV -> Wutta (all importers are default)
         handler = self.make_handler(
             import_handler="wuttasync.importing.csv:FromCsvToWutta"
         )
-
         with patch.object(mod, "sys") as sys:
             handler.list_models({})
-            # just test a few random things we expect to see
-            self.assertTrue(sys.stdout.write.has_call("ALL MODELS:\n"))
-            self.assertTrue(sys.stdout.write.has_call("Person"))
-            self.assertTrue(sys.stdout.write.has_call("User"))
-            self.assertTrue(sys.stdout.write.has_call("Upgrade"))
+            sys.stdout.write.assert_has_calls(
+                [
+                    call("==============================\n"),
+                    call(" EXTRA MODELS:\n"),
+                    call("==============================\n"),
+                    call("(none)\n"),
+                    call("==============================\n"),
+                ]
+            )
+
+        # Wutta -> Wutta (only Person importer is default)
+        handler = self.make_handler(
+            import_handler="wuttasync.importing.wutta:FromWuttaToWuttaImport"
+        )
+        with patch.object(mod, "sys") as sys:
+            handler.list_models({})
+            sys.stdout.write.assert_has_calls(
+                [
+                    call("==============================\n"),
+                    call(" DEFAULT MODELS:\n"),
+                    call("==============================\n"),
+                    call("Person\n"),
+                    call("==============================\n"),
+                    call(" EXTRA MODELS:\n"),
+                    call("==============================\n"),
+                ]
+            )
+
+        # again, but pretend there are no default importers
+        with patch.object(handler.import_handler, "is_default", return_value=False):
+            with patch.object(mod, "sys") as sys:
+                handler.list_models({})
+                sys.stdout.write.assert_has_calls(
+                    [
+                        call("==============================\n"),
+                        call(" DEFAULT MODELS:\n"),
+                        call("==============================\n"),
+                        call("(none)\n"),
+                        call("==============================\n"),
+                        call(" EXTRA MODELS:\n"),
+                        call("==============================\n"),
+                    ]
+                )
 
 
 class TestImporterCommand(TestCase):

tests/importing/test_handlers.py

@@ -7,6 +7,7 @@ from uuid import UUID
 from wuttjamaican.testing import DataTestCase
 
 from wuttasync.importing import handlers as mod, Importer, ToSqlalchemy
+from wuttasync.importing.wutta import FromWuttaToWuttaImport
 
 
 class FromFooToBar(mod.ImportHandler):
@@ -253,6 +254,25 @@ class TestImportHandler(DataTestCase):
             KeyError, handler.get_importer, "BunchOfNonsense", model_class=model.Setting
         )
 
+    def test_is_default(self):
+        handler = self.make_handler()
+        # nb. anything is considered default, by default
+        self.assertTrue(handler.is_default("there_is_no_way_this_is_valid"))
+
+    def test_get_default_importer_keys(self):
+
+        # use handler which already has some non/default keys
+        handler = FromWuttaToWuttaImport(self.config)
+
+        # it supports many importers
+        self.assertIn("Person", handler.importers)
+        self.assertIn("User", handler.importers)
+        self.assertIn("Setting", handler.importers)
+
+        # but only Person is default
+        keys = handler.get_default_importer_keys()
+        self.assertEqual(keys, ["Person"])
+
     def test_get_warnings_email_key(self):
         handler = FromFooToBar(self.config)
 

tests/test_emails.py

@@ -85,6 +85,9 @@ class TestEmailSettings(ImportExportWarningTestCase):
 
         return config
 
+    def test_export_to_wutta_from_wutta_warning(self):
+        self.do_test_preview("export_to_wutta_from_wutta_warning")
+
     def test_import_to_versions_from_wutta_warning(self):
         self.do_test_preview("import_to_versions_from_wutta_warning")