add sorting

tests/book.py

@@ -48,6 +48,25 @@ class CbInvTestCase(object):
             self.assertEqual(book.quantity_digits, 4)
             self.assertEqual(book.show_performance, True)
 
+            # run sorter
+            books = Book.search(
+                [],
+                order=[
+                    ('current_value', 'ASC'),
+                    ('purchase_amount', 'ASC'),
+                    ('diff_amount', 'ASC'),
+                    ('yield_balance', 'ASC'),
+                    ('diff_percent', 'ASC'),
+                    ('quantity', 'ASC'),
+                    ('quantity_all', 'ASC'),
+                    ('yield_sales', 'ASC'),
+                    ('yield_sales_12m', 'ASC'),
+                    ('yield_dividend_total', 'ASC'),
+                    ('yield_dividend_12m', 'ASC'),
+                    ('yield_fee_total', 'ASC'),
+                    ('yield_fee_12m', 'ASC'),
+                    ])
+
     @with_transaction()
     def test_assetbook_aggregated_values(self):
         """ create cashbooks with hierarchy, add lines,