fix: add WuttaDateWidget and associated logic

tests/forms/test_widgets.py

@@ -87,6 +87,46 @@ class TestObjectRefWidget(WebTestCase):
             self.assertNotIn('url', values)
 
 
+class TestWuttaDateWidget(WebTestCase):
+
+    def make_field(self, node, **kwargs):
+        # TODO: not sure why default renderer is in use even though
+        # pyramid_deform was included in setup?  but this works..
+        kwargs.setdefault('renderer', deform.Form.default_renderer)
+        return deform.Field(node, **kwargs)
+
+    def make_widget(self, **kwargs):
+        return mod.WuttaDateWidget(self.request, **kwargs)
+
+    def test_serialize(self):
+        node = colander.SchemaNode(colander.Date())
+        field = self.make_field(node)
+
+        # first try normal date
+        widget = self.make_widget()
+        dt = datetime.date(2025, 1, 15)
+
+        # editable widget has normal picker html
+        result = widget.serialize(field, str(dt))
+        self.assertIn('<wutta-datepicker', result)
+
+        # readonly is rendered per app convention
+        result = widget.serialize(field, str(dt), readonly=True)
+        self.assertEqual(result, '2025-01-15')
+
+        # now try again with datetime
+        widget = self.make_widget()
+        dt = datetime.datetime(2025, 1, 15, 8, 35)
+
+        # editable widget has normal picker html
+        result = widget.serialize(field, str(dt))
+        self.assertIn('<wutta-datepicker', result)
+
+        # readonly is rendered per app convention
+        result = widget.serialize(field, str(dt), readonly=True)
+        self.assertEqual(result, '2025-01-15')
+
+
 class TestWuttaDateTimeWidget(WebTestCase):
 
     def make_field(self, node, **kwargs):