feat: add MasterView registry/discovery mechanism

and show related MasterView link buttons when viewing App Table

also show some more info about model class when viewing table

tests/test_conf.py

@@ -0,0 +1,61 @@
+# -*- coding: utf-8; -*-
+
+from wuttjamaican.db.model import User
+from wuttjamaican.testing import ConfigTestCase
+
+from wuttaweb import conf as mod
+from wuttaweb.testing import WebTestCase
+from wuttaweb.views import MasterView
+
+
+class TestWuttaWebConfigExtension(ConfigTestCase):
+
+    def test_basic(self):
+
+        # continuum plugin not set yet (b/c config was not extended)
+        self.assertIsNone(self.config.get("wutta_continuum.wutta_plugin_spec"))
+
+        # so let's extend it
+        extension = mod.WuttaWebConfigExtension()
+        extension.configure(self.config)
+        self.assertEqual(
+            self.config.get("wutta_continuum.wutta_plugin_spec"),
+            "wuttaweb.db.continuum:WuttaWebContinuumPlugin",
+        )
+
+
+class MasterWithClass(MasterView):
+    model_class = User
+
+
+class MasterWithName(MasterView):
+    model_class = "Widget"
+
+
+class TestAddMasterView(WebTestCase):
+
+    def test_master_with_class(self):
+        model = self.app.model
+
+        # nb. due to minimal test bootstrapping, no master views are
+        # registered by default at this point
+        self.assertNotIn("wuttaweb_master_views", self.request.registry.settings)
+
+        self.pyramid_config.add_wutta_master_view(MasterWithClass)
+        self.assertIn("wuttaweb_master_views", self.request.registry.settings)
+        master_views = self.request.registry.settings["wuttaweb_master_views"]
+        self.assertIn(model.User, master_views)
+        self.assertEqual(master_views[model.User], [MasterWithClass])
+
+    def test_master_with_name(self):
+        model = self.app.model
+
+        # nb. due to minimal test bootstrapping, no master views are
+        # registered by default at this point
+        self.assertNotIn("wuttaweb_master_views", self.request.registry.settings)
+
+        self.pyramid_config.add_wutta_master_view(MasterWithName)
+        self.assertIn("wuttaweb_master_views", self.request.registry.settings)
+        master_views = self.request.registry.settings["wuttaweb_master_views"]
+        self.assertIn("Widget", master_views)
+        self.assertEqual(master_views["Widget"], [MasterWithName])