- returncode, out, err = self.run_arv_normalize(['--version'])
- self.assertEqual(b'', out)
- self.assertNotEqual(b'', err)
- self.assertRegexpMatches(err.decode(), "^bin/arv-normalize [0-9]+\.[0-9]+\.[0-9]+$")
+ with tutil.redirected_streams(
+ stdout=tutil.StringIO, stderr=tutil.StringIO) as (out, err):
+ returncode = self.run_arv_normalize(['--version'])
+ self.assertVersionOutput(out, err)