diff --git a/README.fr.md b/README.fr.md
new file mode 100644
index 0000000..473a0f4
diff --git a/tests/results/test_namespace/60_0family_dynamic_variable/errors/all.json b/tests/results/test_namespace/60_0family_dynamic_variable/errors/all.json
new file mode 100644
index 0000000..acba74c
--- /dev/null
+++ b/tests/results/test_namespace/60_0family_dynamic_variable/errors/all.json
@@ -0,0 +1,4 @@
+{
+    "errors": [],
+    "warnings": []
+}
\ No newline at end of file
diff --git a/tests/results/test_namespace/60_0family_dynamic_variable/errors/mandatories.json b/tests/results/test_namespace/60_0family_dynamic_variable/errors/mandatories.json
new file mode 100644
index 0000000..acba74c
--- /dev/null
+++ b/tests/results/test_namespace/60_0family_dynamic_variable/errors/mandatories.json
@@ -0,0 +1,4 @@
+{
+    "errors": [],
+    "warnings": []
+}
\ No newline at end of file
diff --git a/tests/results/test_namespace/60_0family_dynamic_variable/file/all.cmdline_opts b/tests/results/test_namespace/60_0family_dynamic_variable/file/all.cmdline_opts
new file mode 100644
index 0000000..1f306d5
--- /dev/null
+++ b/tests/results/test_namespace/60_0family_dynamic_variable/file/all.cmdline_opts
@@ -0,0 +1,9 @@
+[
+    "--rougail.var",
+    "val1",
+    "val2",
+    "--rougail.dynval1.variable",
+    "string1",
+    "--rougail.dynval2.variable",
+    "string1"
+]
\ No newline at end of file
diff --git a/tests/results/test_namespace/60_0family_dynamic_variable/file/mandatories.cmdline_opts b/tests/results/test_namespace/60_0family_dynamic_variable/file/mandatories.cmdline_opts
new file mode 100644
index 0000000..e92ac6a
--- /dev/null
+++ b/tests/results/test_namespace/60_0family_dynamic_variable/file/mandatories.cmdline_opts
@@ -0,0 +1,6 @@
+[
+    "--rougail.dynval1.variable",
+    "string1",
+    "--rougail.dynval2.variable",
+    "string1"
+]
\ No newline at end of file
diff --git a/tests/results/test_namespace/60_0family_dynamic_variable/makedict/all.json b/tests/results/test_namespace/60_0family_dynamic_variable/makedict/all.json
new file mode 100644
index 0000000..8adc880
--- /dev/null
+++ b/tests/results/test_namespace/60_0family_dynamic_variable/makedict/all.json
@@ -0,0 +1,8 @@
+{
+    "rougail.var": [
+        "val1",
+        "val2"
+    ],
+    "rougail.dynval1.variable": "string1",
+    "rougail.dynval2.variable": "string1"
+}
diff --git a/tests/results/test_namespace/60_0family_dynamic_variable/makedict/mandatories.json b/tests/results/test_namespace/60_0family_dynamic_variable/makedict/mandatories.json
new file mode 100644
index 0000000..8adc880
--- /dev/null
+++ b/tests/results/test_namespace/60_0family_dynamic_variable/makedict/mandatories.json
@@ -0,0 +1,8 @@
+{
+    "rougail.var": [
+        "val1",
+        "val2"
+    ],
+    "rougail.dynval1.variable": "string1",
+    "rougail.dynval2.variable": "string1"
+}
diff --git a/tests/structures/rougail/00-main.yml b/tests/structures/rougail/00-main.yml
new file mode 100644
index 0000000..721155f
--- /dev/null
+++ b/tests/structures/rougail/00-main.yml
@@ -0,0 +1,6 @@
+%YAML 1.2
+---
+version: 1.1
+
+my_variable:  # My variable
+...
diff --git a/tests/test_others.py b/tests/test_others.py
new file mode 100644
index 0000000..77acf80
--- /dev/null
+++ b/tests/test_others.py
@@ -0,0 +1,48 @@
+from pathlib import Path
+
+from rougail import Rougail
+from rougail.user_data_commandline import RougailUserDataCommandline as RougailUserData
+
+from rougail_tests.utils import get_rougail_config, config_to_dict
+
+
+def test_error():
+    rougailconfig = get_rougail_config(Path('tests/structures/'), True)
+    ##################################
+    rougailconfig['step.user_data'] = ['commandline']
+    ##################################
+    rougail = Rougail(rougailconfig)
+    config = rougail.run()
+    arguments = ['--rougail.unknown', 'an other value']
+    generated_user_data = RougailUserData(config, rougailconfig=rougailconfig, arguments=arguments).run()
+    err_warn = rougail.user_data(generated_user_data)
+    assert err_warn == {'errors': ['unrecognized arguments: --rougail.unknown an other value'], 'warnings': []}
+    assert dict(config_to_dict(config.value.get())) == {'rougail.my_variable': None}
+
+
+def test_allow_unknown_error():
+    rougailconfig = get_rougail_config(Path('tests/structures/'), True)
+    ##################################
+    rougailconfig['step.user_data'] = ['commandline']
+    ##################################
+    rougail = Rougail(rougailconfig)
+    config = rougail.run()
+    arguments = ['--rougail.my_variable', 'a value', '--rougail.unknown', 'an other value']
+    generated_user_data = RougailUserData(config, rougailconfig=rougailconfig, arguments=arguments).run()
+    err_warn = rougail.user_data(generated_user_data)
+    assert err_warn == {'errors': ['unrecognized arguments: --rougail.unknown an other value'], 'warnings': []}
+    assert dict(config_to_dict(config.value.get())) == {'rougail.my_variable': 'a value'}
+
+
+def test_allow_unknown():
+    rougailconfig = get_rougail_config(Path('tests/structures/'), True)
+    ##################################
+    rougailconfig['step.user_data'] = ['commandline']
+    ##################################
+    rougail = Rougail(rougailconfig)
+    config = rougail.run()
+    arguments = ['--rougail.my_variable', 'a value', '--rougail.unknown', 'an other value']
+    generated_user_data = RougailUserData(config, rougailconfig=rougailconfig, arguments=arguments, allow_unknown=True).run()
+    err_warn = rougail.user_data(generated_user_data)
+    assert err_warn == {'errors': [], 'warnings': []}
+    assert dict(config_to_dict(config.value.get())) == {'rougail.my_variable': 'a value'}