Pass '*posargs' to py.test when running system tests. (googleapis#4099)

tseaver · web-flow · commit 8e297bdc7946 · 2017-10-02T16:05:03.000-04:00
diff --git a/storage/nox.py b/storage/nox.py
@@ -74,7 +74,7 @@ def system_tests(session, python_version):
     session.install('.')
 
     # Run py.test against the system tests.
-    session.run('py.test', '--quiet', 'tests/system.py')
+    session.run('py.test', '--quiet', 'tests/system.py', *session.posargs)
 
 
 @nox.session
