1 files changed, 22 insertions, 2 deletions
diff --git a/tst/test_help.py b/tst/test_help.py
index 3e5ce87..2a6c06a 100644
--- a/tst/test_help.py
+++ b/tst/test_help.py
@@ -22,7 +22,7 @@ from io import StringIO
 from hypothesis import example, given
 from pytest import fixture, mark, raises
 
-from scadere import NetLoc
+from scadere import EXAMPLE_PREFIX, EXAMPLE_DESCRIPTION_PREFIX, NetLoc
 from scadere.check import main as check
 from scadere.listen import main as listen
 
@@ -31,7 +31,7 @@ from scadere.listen import main as listen
 def help_string(request):
     string = StringIO()
     with suppress(SystemExit), redirect_stdout(string):
-        request.param(['--help'])
+        request.param(arguments=['--help'])
     return string.getvalue()
 
 
@@ -57,6 +57,26 @@ def test_long_option(help_string, short, long, metavar):
     assert f'{short} {metavar}, {long}={metavar}' in help_string
 
 
+@mark.parametrize('help_string', [check, listen], indirect=True)
+def test_examples(help_string):
+    index = help_string.find('\n\nExamples:\n')
+    assert index >= 0
+    lines = help_string[index:].removeprefix('\n\nExamples:\n').splitlines()
+
+    assert EXAMPLE_DESCRIPTION_PREFIX.startswith(EXAMPLE_PREFIX)
+    assert not lines[0].startswith(EXAMPLE_DESCRIPTION_PREFIX)
+    assert lines[-1].startswith(EXAMPLE_DESCRIPTION_PREFIX)
+
+    must_be_desc = False
+    for line in lines:
+        if must_be_desc:
+            assert line.startswith(EXAMPLE_DESCRIPTION_PREFIX)
+            must_be_desc = False
+        else:
+            assert line.startswith(EXAMPLE_PREFIX)
+            must_be_desc = not line.startswith(EXAMPLE_DESCRIPTION_PREFIX)
+
+
 @example('a.example:b', None)  # string is unlikely to match .*:\D+
 @example('a.example:98', None)  # string is unlikely to match .*:\d+
 @given(...)