help with modified argument

test/test_readme.py

@@ -109,7 +109,7 @@ root:
     assert f.getvalue() == output
 
 
-def test_readme_help_modif():
+def test_readme_help_modif_positional():
     output = """usage: prog.py str [-h] [-v] --str STR
 
 optional arguments:
@@ -129,6 +129,44 @@ optional arguments:
     assert f.getvalue() == output
 
 
+def test_readme_help_modif():
+    output = """usage: prog.py str --str toto [-h] [-v]
+
+optional arguments:
+  -h, --help       show this help message and exit
+  -v, --verbosity  increase output verbosity
+"""
+    parser = TiramisuCmdlineParser(get_config(), 'prog.py')
+    f = StringIO()
+    with redirect_stdout(f):
+        try:
+            parser.parse_args(['str', '--str', 'toto', '--help'])
+        except SystemExit as err:
+            assert str(err) == "0"
+        else:
+            raise Exception('must raises')
+    assert f.getvalue() == output
+
+
+def test_readme_help_modif_short():
+    output = """usage: prog.py str --verbosity [-h] --str STR
+
+optional arguments:
+  -h, --help  show this help message and exit
+  --str STR   string option
+"""
+    parser = TiramisuCmdlineParser(get_config(), 'prog.py')
+    f = StringIO()
+    with redirect_stdout(f):
+        try:
+            parser.parse_args(['str', '-v', '--help'])
+        except SystemExit as err:
+            assert str(err) == "0"
+        else:
+            raise Exception('must raises')
+    assert f.getvalue() == output
+
+
 def test_readme_positional_mandatory():
     output = """usage: prog.py [-h] [-v] {str,list,int,none}
 prog.py: error: the following arguments are required: cmd