diff --git a/src/rougail/user_data_environment/data.py b/src/rougail/user_data_environment/data.py
index a1a9406..8347b13 100644
--- a/src/rougail/user_data_environment/data.py
+++ b/src/rougail/user_data_environment/data.py
@@ -67,7 +67,7 @@ class RougailUserDataEnvironment:
             if option.isoptiondescription():
                 self.parse(option)
             else:
-                # FIXME gerer les erreurs
+                # FIXME handle exceptions
                 # try except
                 # ValueError suivant le type
                 # PropertyError -> hidden ou frozen...
@@ -76,6 +76,7 @@ class RougailUserDataEnvironment:
                 self.load_environment(option)
 #                except Exception as exc:
 #                    print(exc)
+
     def load_environment(self, option):
         option_name = option.path()
         # the bash variable are in upper case
@@ -94,7 +95,7 @@ class RougailUserDataEnvironment:
         option_bash_value = self.rougail_environment_vars.pop(option_name)
         if ismulti:
             # here we expect the bash option value of a multi to be coma separated:
-            option_bash_value = [opt.strip() for opt in option_bash_value.split(",")] 
+            option_bash_value = [opt.strip() for opt in option_bash_value.split(",")]
             if type_obj:
                 option_bash_value = [type_obj(opt) for opt in option_bash_value]
         elif type_obj:
@@ -103,4 +104,4 @@ class RougailUserDataEnvironment:
             option.value.set(option_bash_value)
         except Exception as exc:
             print(exc)
-        
+
diff --git a/tests/custom.py b/tests/custom.py
new file mode 100644
index 0000000..eb0e07f
--- /dev/null
+++ b/tests/custom.py
@@ -0,0 +1,7 @@
+from os import environ
+environ['TIRAMISU_LOCALE'] = 'en'
+from tiramisu import StrOption
+
+
+class CustomOption(StrOption):
+    pass
diff --git a/tests/envvars/00_10_env_var/env b/tests/envvars/00_10_env_var/env
new file mode 100644
index 0000000..5444afb
--- /dev/null
+++ b/tests/envvars/00_10_env_var/env
@@ -0,0 +1,8 @@
+ROUGAIL_VARNAME2="tata"
+ROUGAIL_VARNAME1="titi"
+ROUGAIL_VARNAME23="  18,  25  "
+ROUGAIL_VARINT="5"
+ROUGAIL_VARNAME34="   58,    22  "
+ROUGAIL_IDONTEXIST="blah"
+ROUGAIL_IDONTEXIST2="hum"
+ROUGAIL_myfamily.varname3='spam'
diff --git a/tests/test_load.py b/tests/test_load.py
index f826f8a..9321e05 100644
--- a/tests/test_load.py
+++ b/tests/test_load.py
@@ -1,24 +1,20 @@
 from .custom import CustomOption
 
 from pathlib import Path
+import os
 
 from pytest import fixture  # , raises
 from ruamel.yaml import YAML
+from dotenv import load_dotenv
 
 from rougail import RougailConfig, Rougail
 #from tiramisu import Config
-
-#from rougail.output_doc import RougailOutputDoc
+from rougail.user_data_environment.data import RougailUserDataEnvironment
 
 
 dico_dirs = Path('../rougail/tests/dictionaries')
 #test_ok = set()
 
-#excludes = set([
-#    '60_5family_dynamic_unknown_suffix',
-#    '60_5family_dynamic_variable_outside_sub_suffix',
-#])
-
 #for test in dico_dirs.iterdir():
 #    if (test / 'tiramisu').is_dir() and test.name not in excludes:
 #        test_ok.add(test)
@@ -26,7 +22,7 @@ dico_dirs = Path('../rougail/tests/dictionaries')
 #test_ok = list(test_ok)
 #test_ok.sort()
 
-test_ok = [dico_dirs / '60_0family_dynamic_variable_suffix']
+test_ok = [dico_dirs / '00_10_env_var']
 
 
 @fixture(scope="module", params=test_ok)
@@ -36,46 +32,39 @@ def test_dir(request):
 
 def _test_dictionaries(test_dir):
     rougailconfig = RougailConfig.copy()
-#    rougailconfig['step.output'] = 'environment'
+    rougailconfig['step.user_data'] = ['environment']
+    rougailconfig['main_namespace'] = None
     dirs = [str(test_dir / 'dictionaries' / 'rougail')]
     rougailconfig['custom_types']['custom'] = CustomOption
     rougailconfig['main_dictionaries'] = dirs
     return rougailconfig
-    
-#def option_value(parent, key_is_option=False):
-#    for option, value in parent.items():
-#        if option.isoptiondescription():
-#            if not key_is_option and option.isleadership():
-#                ret = []
-#                for idx, datas in enumerate(option_value(value, key_is_option=True)):
-#                    sub_option, sub_value = datas
-#                    if not idx:
-#                        sub_option = sub_option.path()
-#                        key = sub_option
-#                        for val in sub_value:
-#                            ret.append({sub_option: val})
-#                    else:
-#                        index = sub_option.index()
-#                        sub_option = sub_option.path()
-#                        ret[index][sub_option] = sub_value
-#                yield key, ret
-#            else:
-#                yield from option_value(value, key_is_option)
-#        elif key_is_option:
-#            yield option, value
-#        else:
-#            yield option.path(), value
 
 
 def test_dictionaries_warning(test_dir):
     rougailconfig = _test_dictionaries(test_dir)
     # loads the config in the tiramisu's meaning
     config = Rougail(rougailconfig).run() #Config(optiondescription["option_0"])
-    print(type(config))
-#    config_dict = dict(option_value(config.value.get()))
-#    print(config_dict)
+    config_dict = dict(config.value.get())
+    #print(config_dict)
+    user_datas = {'errors': [],
+                   'warnings': [],
+                   }
 
+    # loading the env file
+    envfile = Path('tests') / 'envvars' / '00_10_env_var' / 'env'
+    load_dotenv(envfile)
 
+    environment = RougailUserDataEnvironment(config,
+                                              rougailconfig=rougailconfig,
+                                              user_datas=user_datas,
+                                              )
+    environment.run()
+    new_config = environment.config
+    #print(user_datas)
+    #print(os.getenv("ROUGAIL_VARNAME23"))
+    new_config_dict = dict(new_config.value.get())
+    # print(new_config_dict)
+    assert str(new_config_dict) == """{<TiramisuOption path="varname23">: ['18', '25'], <TiramisuOption path="varname34">: [58, 22], <TiramisuOption path="varname1">: 'titi', <TiramisuOption path="varint">: 2, <TiramisuOption path="varname2">: 'tata', <TiramisuOption path="myfamily">: {<TiramisuOption path="myfamily.varname3">: 'egg'}}"""
 
 #def test_dictionaries_asciidoc(test_dir):
 #    _test_dictionaries(test_dir, 'asciidoc', True)