Add a new Params section to factories.

This handles parameters that alter the declarations of a factory.

A few technical notes:
- A parameter's outcome may alter other parameters
- In order to fix that, we perform a (simple) cyclic definition
  detection at class declaration time.
- Parameters may only be either naked values or ComplexParameter
  subclasses
- Parameters are never passed to the underlying class

1 files changed, 9 insertions, 0 deletions

diff --git a/tests/test_using.py b/tests/test_using.py
index 3ef5403..67db3bc 100644
--- a/tests/test_using.py
+++ b/tests/test_using.py
@@ -40,6 +40,15 @@ class TestObject(object):
         self.four = four
         self.five = five
 
+    def as_dict(self):
+        return dict(
+            one=self.one,
+            two=self.two,
+            three=self.three,
+            four=self.four,
+            five=self.five,
+        )
+
 
 class FakeModel(object):
     @classmethod