float field was not rounding values when precision = 0

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@24566 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5Form/FormulatorPatch.py

@@ -1325,7 +1325,7 @@ class FloatWidget(TextWidget):
               return value
           try :
             float_value = float(value)
-            if precision:
+            if precision not in (None, ''):
               float_value = round(float_value, precision)
             value = str(float_value)
           except ValueError:

product/ERP5Form/tests/testFields.py

@@ -105,6 +105,8 @@ class TestFloatField(unittest.TestCase):
   def test_format_precision(self):
     self.field.values['precision'] = 0
     self.assertEquals('12', self.widget.format_value(self.field, 12.34))
+    # value is rounded
+    self.assertEquals('13', self.widget.format_value(self.field, 12.9))
 
     purgeFieldValueCache() # call this before changing internal field values.
     self.field.values['precision'] = 2