Fix test_ftp_parse to pass in 2018 (#114)

because the embedded UNIX epoch values assumed that tm_year is 2017

Author: bmwiedemann

tests/test_ftp_parse.py

@@ -1,21 +1,25 @@
 from __future__ import unicode_literals
 
 from datetime import datetime
+import mock
 import time
 import unittest
 
 from fs import _ftp_parse as ftp_parse
 
+time2017 = time.struct_time([2017, 11, 28, 1, 1, 1, 1, 332, 0])
+
 
 class TestFTPParse(unittest.TestCase):
 
- def test_parse_time(self):
+ @mock.patch("time.localtime")
+ def test_parse_time(self, mock_localtime):
  self.assertEqual(
  ftp_parse._parse_time('JUL 05 1974'),
  142214400.0
  )
 
- year = time.localtime().tm_year
+ mock_localtime.return_value = time2017
  self.assertEqual(
  ftp_parse._parse_time('JUL 05 02:00'),
  1499220000.0
@@ -32,7 +36,9 @@ def test_parse(self):
  def test_parse_line(self):
  self.assertIs(ftp_parse.parse_line('not a dir'), None)
 
- def test_decode_linux(self):
+ @mock.patch("time.localtime")
+ def test_decode_linux(self, mock_localtime):
+ mock_localtime.return_value = time2017
  directory = """\
 lrwxrwxrwx 1 0 0 19 Jan 18 2006 debian -> ./pub/mirror/debian
 drwxr-xr-x 10 0 0 4096 Aug 03 09:21 debian-archive