basic tests with new factories

cookbook/models.py

@@ -67,6 +67,9 @@ class TreeManager(MP_NodeManager):
         except self.model.DoesNotExist:
             with scopes_disabled():
                 try:
+                    defaults = kwargs.pop('defaults', None)
+                    if defaults:
+                        kwargs = {**kwargs, **defaults}
                     # ManyToMany fields can't be set this way, so pop them out to save for later
                     fields = [field.name for field in self.model._meta.get_fields() if issubclass(type(field), ManyToManyField)]
                     many_to_many = {field: kwargs.pop(field) for field in list(kwargs) if field in fields}