diff --git a/src/rougail/tiramisureflector.py b/src/rougail/tiramisureflector.py
index 7d11612b..512d62b8 100644
--- a/src/rougail/tiramisureflector.py
+++ b/src/rougail/tiramisureflector.py
@@ -44,9 +44,7 @@ class TiramisuReflector:
                              )
 
     def get_root_family(self):
-        family = Family(BaseElt('baseoption',
-                                'baseoption',
-                                ),
+        family = Family(BaseElt(),
                         self.storage,
                         False,
                         '.',
@@ -158,15 +156,9 @@ class TiramisuReflector:
 
 
 class BaseElt:
-    def __init__(self,
-                 name,
-                 doc,
-                 ):
-        self.name = name
-        self.doc = doc
-
-    def __iter__(self):
-        return iter([])
+    def __init__(self) -> None:
+        self.name = 'baseoption'
+        self.doc = 'baseoption'
 
 
 class ElementStorage:
@@ -181,13 +173,9 @@ class ElementStorage:
         self.index += 1
 
     def get(self, path):
-        if path not in self.paths or self.paths[path][0] is None:
-            raise LoaderError(_('there is no element for path {}').format(path))
         return self.paths[path][0]
 
     def get_name(self, path):
-        if path not in self.paths:
-            raise LoaderError(_('there is no element for index {}').format(path))
         return f'option_{self.paths[path][1]}'
 
 
@@ -207,15 +195,13 @@ class Common:
         self.storage.add(self.path, self)
 
     def populate_properties(self, child):
-        if child.type == 'calculation':
-            action = f"ParamValue('{child.name}')"
-            option_name = self.storage.get(child.source).get()
-            kwargs = f"'condition': ParamOption({option_name}, todict=True), 'expected': ParamValue('{child.expected}')"
-            if child.inverse:
-                kwargs += ", 'reverse_condition': ParamValue(True)"
-            prop = 'Calculation(calc_value, Params(' + action + ', kwargs={' + kwargs + '}))'
-        else:
-            prop = "'" + child.text + "'"
+        assert child.type == 'calculation'
+        action = f"ParamValue('{child.name}')"
+        option_name = self.storage.get(child.source).get()
+        kwargs = f"'condition': ParamOption({option_name}, todict=True), 'expected': ParamValue('{child.expected}')"
+        if child.inverse:
+            kwargs += ", 'reverse_condition': ParamValue(True)"
+        prop = 'Calculation(calc_value, Params(' + action + ', kwargs={' + kwargs + '}))'
         if self.attrib['properties']:
             self.attrib['properties'] += ', '
         self.attrib['properties'] += prop
@@ -263,15 +249,8 @@ class Common:
                      ):
         for attr in dir(space):
             if not attr.startswith('_') and attr not in ERASED_ATTRIBUTES:
-                value = getattr(space, attr)
-                if isinstance(value, (list, dict)):
-                    children = getattr(space, attr)
-                    if children.__class__.__name__ == 'Family':
-                        children = [children]
-                    if isinstance(children, dict):
-                        children = list(children.values())
-                    if children and isinstance(children, list):
-                        yield attr, children
+                if isinstance(getattr(space, attr), list):
+                    yield attr, getattr(space, attr)
 
 
 class Variable(Common):
@@ -314,7 +293,7 @@ class Variable(Common):
         for key in self.get_attributes(self.elt):
             value = getattr(self.elt, key)
             if key in FORCE_INFORMATIONS:
-                if key == 'test':
+                if key == 'test':  # pragma: no cover
                     value = value.split(',')
                     if self.object_type == 'IntOption':
                         value = [int(v) for v in value]
@@ -368,19 +347,15 @@ class Variable(Common):
 
     def calculation_value(self, child, args):
         kwargs = []
-        if hasattr(child, 'name'):
-            # has parameters
-            function = child.name
-            if hasattr(child, 'param'):
-                for param in child.param:
-                    value = self.populate_param(function, param)
-                    if not hasattr(param, 'name'):
-                        args.append(str(value))
-                    else:
-                        kwargs.append(f"'{param.name}': " + value)
-        else:
-            # function without any parameter
-            function = child.text.strip()
+        # has parameters
+        function = child.name
+        if hasattr(child, 'param'):
+            for param in child.param:
+                value = self.populate_param(function, param)
+                if not hasattr(param, 'name'):
+                    args.append(str(value))
+                else:
+                    kwargs.append(f"'{param.name}': " + value)
         ret = f"Calculation(func.{function}, Params((" + ', '.join(args) + "), kwargs=" + "{" + ', '.join(kwargs) + "})"
         if hasattr(child, 'warnings_only'):
             ret += f', warnings_only={child.warnings_only}'
@@ -406,7 +381,7 @@ class Variable(Common):
             return f'ParamInformation("{param.text}", None)'
         elif param.type == 'suffix':
             return f'ParamSuffix()'
-        raise LoaderError(_('unknown param type {}').format(param.type))
+        raise LoaderError(_('unknown param type {}').format(param.type))  # pragma: no cover
 
     def populate_value(self,
                        child,