def test_get_stream_file_raises_devnull(self): with self.assertRaises(ValueError): shell._get_stream_file(shell.DEVNULL)
def test_get_stream_file(self): self.assertEqual(shell._get_stream_file(shell.PIPE), sys.stdout) self.assertEqual(shell._get_stream_file(shell.STDOUT), sys.stdout) self.assertEqual(shell._get_stream_file(sys.stdout), sys.stdout) self.assertEqual(shell._get_stream_file(sys.stderr), sys.stderr)