fix: misc. improvements for display of grids, form errors

tests/views/test_master.py

@@ -1,5 +1,6 @@
 # -*- coding: utf-8; -*-
 
+import decimal
 import functools
 from unittest import TestCase
 from unittest.mock import MagicMock, patch
@@ -558,6 +559,44 @@ class TestMasterView(WebTestCase):
             view.configure_grid(grid)
             self.assertNotIn('uuid', grid.columns)
 
+    def test_grid_render_bool(self):
+        model = self.app.model
+        view = self.make_view()
+        user = model.User(username='barney', active=None)
+
+        # null
+        value = view.grid_render_bool(user, 'active', None)
+        self.assertIsNone(value)
+
+        # true
+        user.active = True
+        value = view.grid_render_bool(user, 'active', True)
+        self.assertEqual(value, "Yes")
+
+        # false
+        user.active = False
+        value = view.grid_render_bool(user, 'active', False)
+        self.assertEqual(value, "No")
+
+    def test_grid_render_currency(self):
+        model = self.app.model
+        view = self.make_view()
+        obj = {'amount': None}
+
+        # null
+        value = view.grid_render_currency(obj, 'amount', None)
+        self.assertIsNone(value)
+
+        # normal amount
+        obj['amount'] = decimal.Decimal('100.42')
+        value = view.grid_render_currency(obj, 'amount', '100.42')
+        self.assertEqual(value, "$100.42")
+
+        # negative amount
+        obj['amount'] = decimal.Decimal('-100.42')
+        value = view.grid_render_currency(obj, 'amount', '-100.42')
+        self.assertEqual(value, "($100.42)")
+
     def test_grid_render_notes(self):
         model = self.app.model
         view = self.make_view()