X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/570509ab4d2ef93d870fd2b1f2eab178afb1bad9..fee8873d0c5eeec1bd838161357679de1a3fe0cb:/services/fuse/tests/test_command_args.py

diff --git a/services/fuse/tests/test_command_args.py b/services/fuse/tests/test_command_args.py
index e8488d7ff9..57b4a37826 100644
--- a/services/fuse/tests/test_command_args.py
+++ b/services/fuse/tests/test_command_args.py
@@ -3,6 +3,7 @@ import arvados_fuse
 import arvados_fuse.command
 import contextlib
 import functools
+import io
 import json
 import llfuse
 import logging
@@ -48,6 +49,14 @@ class MountArgsTest(unittest.TestCase):
             ent = ent[p]
         return ent
 
+    @contextlib.contextmanager
+    def stderrMatches(self, stderr):
+        orig, sys.stderr = sys.stderr, stderr
+        try:
+            yield
+        finally:
+            sys.stderr = orig
+
     def check_ent_type(self, cls, *path):
         ent = self.lookup(self.mnt, *path)
         self.assertEqual(ent.__class__, cls)
@@ -170,6 +179,13 @@ class MountArgsTest(unittest.TestCase):
                          run_test_server.fixture('users')['active']['uuid'])
         self.assertEqual(True, self.mnt.listen_for_events)
 
+    def test_version_argument(self):
+        orig, sys.stderr = sys.stderr, io.BytesIO()
+        with self.assertRaises(SystemExit):
+            args = arvados_fuse.command.ArgumentParser().parse_args(['--version'])
+        self.assertRegexpMatches(sys.stderr.getvalue(), "[0-9]+\.[0-9]+\.[0-9]+")
+        sys.stderr = orig
+
     @noexit
     @mock.patch('arvados.events.subscribe')
     def test_disable_event_listening(self, mock_subscribe):