204 no content http status for content action

tracim/tests/functional/test_workspaces.py

         res = self.testapp.put_json(
             '/api/v2/workspaces/2/contents/8/move',
             params=params,
-            status=200
+            status=204
         )
         new_folder1_contents = self.testapp.get('/api/v2/workspaces/2/contents', params=params_folder1, status=200).json_body  # nopep8
         new_folder2_contents = self.testapp.get('/api/v2/workspaces/2/contents', params=params_folder2, status=200).json_body  # nopep8
         res = self.testapp.put_json(
             # INFO - G.M - 2018-06-163 - delete Apple_Pie
             '/api/v2/workspaces/2/contents/8/delete',
-            status=200
+            status=204
         )
         new_active_contents = self.testapp.get('/api/v2/workspaces/2/contents', params=params_active, status=200).json_body  # nopep8
         new_deleted_contents = self.testapp.get('/api/v2/workspaces/2/contents', params=params_deleted, status=200).json_body  # nopep8
         assert not [content for content in archived_contents if content['content_id'] == 8]  # nopep8
         res = self.testapp.put_json(
             '/api/v2/workspaces/2/contents/8/archive',
-            status=200
+            status=204
         )
         new_active_contents = self.testapp.get('/api/v2/workspaces/2/contents', params=params_active, status=200).json_body  # nopep8
         new_archived_contents = self.testapp.get('/api/v2/workspaces/2/contents', params=params_archived, status=200).json_body  # nopep8
         assert [content for content in deleted_contents if content['content_id'] == 14]  # nopep8
         res = self.testapp.put_json(
             '/api/v2/workspaces/2/contents/14/undelete',
-            status=200
+            status=204
         )
         new_active_contents = self.testapp.get('/api/v2/workspaces/2/contents', params=params_active, status=200).json_body  # nopep8
         new_deleted_contents = self.testapp.get('/api/v2/workspaces/2/contents', params=params_deleted, status=200).json_body  # nopep8
         assert [content for content in archived_contents if content['content_id'] == 13]  # nopep8
         res = self.testapp.put_json(
             '/api/v2/workspaces/2/contents/13/unarchive',
-            status=200
+            status=204
         )
         new_active_contents = self.testapp.get('/api/v2/workspaces/2/contents', params=params_active, status=200).json_body  # nopep8
         new_archived_contents = self.testapp.get('/api/v2/workspaces/2/contents', params=params_archived, status=200).json_body  # nopep8

tracim/views/core_api/workspace_controller.py

     @require_workspace_role(UserRoleInWorkspace.CONTRIBUTOR)
     @hapic.input_path(WorkspaceAndContentIdPathSchema())
     @hapic.input_body(ContentMoveSchema())
-    @hapic.output_body(NoContentSchema())
+    @hapic.output_body(NoContentSchema(), default_http_code=HTTPStatus.NO_CONTENT)  # nopep8
     def move_content(
             self,
             context,
     @hapic.handle_exception(WorkspaceNotFound, HTTPStatus.FORBIDDEN)
     @require_workspace_role(UserRoleInWorkspace.CONTRIBUTOR)
     @hapic.input_path(WorkspaceAndContentIdPathSchema())
-    @hapic.output_body(NoContentSchema())
+    @hapic.output_body(NoContentSchema(), default_http_code=HTTPStatus.NO_CONTENT)  # nopep8
     def delete_content(
             self,
             context,
     @hapic.handle_exception(WorkspaceNotFound, HTTPStatus.FORBIDDEN)
     @require_workspace_role(UserRoleInWorkspace.CONTRIBUTOR)
     @hapic.input_path(WorkspaceAndContentIdPathSchema())
-    @hapic.output_body(NoContentSchema())
+    @hapic.output_body(NoContentSchema(), default_http_code=HTTPStatus.NO_CONTENT)  # nopep8
     def undelete_content(
             self,
             context,
     @hapic.handle_exception(WorkspaceNotFound, HTTPStatus.FORBIDDEN)
     @require_workspace_role(UserRoleInWorkspace.CONTRIBUTOR)
     @hapic.input_path(WorkspaceAndContentIdPathSchema())
-    @hapic.output_body(NoContentSchema())
+    @hapic.output_body(NoContentSchema(), default_http_code=HTTPStatus.NO_CONTENT)  # nopep8
     def archive_content(
             self,
             context,
     @hapic.handle_exception(WorkspaceNotFound, HTTPStatus.FORBIDDEN)
     @require_workspace_role(UserRoleInWorkspace.CONTRIBUTOR)
     @hapic.input_path(WorkspaceAndContentIdPathSchema())
-    @hapic.output_body(NoContentSchema())
+    @hapic.output_body(NoContentSchema(), default_http_code=HTTPStatus.NO_CONTENT)  # nopep8
     def unarchive_content(
             self,
             context,