Use testtools as test base class.

On the path to testr migration, we need to replace the unittest base classes
with testtools.
Replace tearDown with addCleanup, addCleanup is more resilient than tearDown.
The fixtures library has excellent support for managing and cleaning
tempfiles. Use it.
Replace skip_ with testtools.skipTest

Part of blueprint grizzly-testtools.

Change-Id: I45e11bbb1ff9b31f3278d3b016737dcb7850cd98

1 files changed, 6 insertions, 11 deletions

diff --git a/tests/unit/test_pastedeploy.py b/tests/unit/test_pastedeploy.py
index 9746fe5..817eb47 100644
--- a/tests/unit/test_pastedeploy.py
+++ b/tests/unit/test_pastedeploy.py
@@ -16,7 +16,9 @@
 
 import os
 import tempfile
-import unittest
+
+import fixtures
+import testtools
 
 from openstack.common import pastedeploy
 
@@ -41,27 +43,20 @@ class Filter(object):
         self.data = data
 
 
-class PasteTestCase(unittest.TestCase):
+class PasteTestCase(testtools.TestCase):
 
     def setUp(self):
-        self.tempfiles = []
-
-    def tearDown(self):
-        self.remove_tempfiles()
+        super(PasteTestCase, self).setUp()
+        self.useFixture(fixtures.NestedTempfile())
 
     def create_tempfile(self, contents):
         (fd, path) = tempfile.mkstemp()
-        self.tempfiles.append(path)
         try:
             os.write(fd, contents)
         finally:
             os.close(fd)
         return path
 
-    def remove_tempfiles(self):
-        for p in self.tempfiles:
-            os.remove(p)
-
     def test_app_factory(self):
         data = 'test_app_factory'