line: counterpart-values for split-lines + tests

line.py

@@ -144,15 +144,25 @@ class Line(SecondUomMixin, metaclass=PoolMeta):
         return result
 
     @classmethod
-    def get_counterpart_values(cls, line, values={}):
+    def get_counterpart_values(cls, line, splitline=None, values={}):
         """ add quantity to counterpart
         """
-        result = super(Line, cls).get_counterpart_values(line, values)
+        result = super(Line, cls).get_counterpart_values(
+                line,
+                splitline = splitline,
+                values = values
+            )
 
         line_uom = getattr(line.quantity_uom, 'id', None)
         booktransf_uom = getattr(getattr(line.booktransf, 'quantity_uom', {}), 'id', None)
 
-        if booktransf_uom is None:
+        if getattr(splitline, 'quantity', None) is not None:
+            # we add values to the counterpart of a splitbooking-line
+            result.update({
+                'quantity': splitline.quantity,
+                'quantity_2nd_uom': None,
+                })
+        elif booktransf_uom is None:
             # counterpart-cashbook has no uom -> no quantity
             result.update({
                 'quantity': None,