diff -r 058bb3dc685f -r 0b59724cb3f2 cubicweb/web/test/data/views.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cubicweb/web/test/data/views.py	Sat Jan 16 13:48:51 2016 +0100
@@ -0,0 +1,57 @@
+# copyright 2003-2012 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
+# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr
+#
+# This file is part of CubicWeb.
+#
+# CubicWeb is free software: you can redistribute it and/or modify it under the
+# terms of the GNU Lesser General Public License as published by the Free
+# Software Foundation, either version 2.1 of the License, or (at your option)
+# any later version.
+#
+# CubicWeb is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+# FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
+# details.
+#
+# You should have received a copy of the GNU Lesser General Public License along
+# with CubicWeb.  If not, see <http://www.gnu.org/licenses/>.
+
+from cubicweb.predicates import has_related_entities
+from cubicweb.web.views.ajaxcontroller import ajaxfunc
+from cubicweb.web.views.ibreadcrumbs import IBreadCrumbsAdapter
+
+def _recursive_replace_stream_by_content(tree):
+    """ Search for streams (i.e. object that have a 'read' method) in a tree
+    (which branches are lists or tuples), and substitute them by their content,
+    leaving other leafs identical. A copy of the tree with only lists as
+    branches is returned.
+    """
+    if not isinstance(tree, (list, tuple)):
+        if hasattr(tree, 'read'):
+            return tree.read()
+        return tree
+    else:
+        return [_recursive_replace_stream_by_content(value)
+                for value in tree]            
+
+
+@ajaxfunc(output_type='json')
+def fileupload(self):
+    """ Return a json copy of the web request formin which uploaded files
+    are read and their content substitute the received streams.
+    """
+    try:
+        result_dict = {}
+        for key, value in self._cw.form.items():
+            result_dict[key] = _recursive_replace_stream_by_content(value)
+        return result_dict
+    except Exception as ex:
+        import traceback as tb
+        tb.print_exc(ex)
+
+
+class FolderIBreadCrumbsAdapter(IBreadCrumbsAdapter):
+    __select__ = IBreadCrumbsAdapter.__select__ & has_related_entities('filed_under')
+
+    def parent_entity(self):
+        return self.entity.filed_under[0]