temporary suppress httpretty warnings

httpretty throws:
- a PendingDeprecationWarning : httpretty/core.py:438: PendingDeprecationWarning: isAlive() is deprecated, use is_alive() instead if t.isAlive():
- a ResourceWarning : httpretty/core.py:485: ResourceWarning: unclosed file <_io.BufferedRandom name=7> self.fd = FakeSockFile()

There already are issues and PRs to fix these:
- gabrielfalcao/HTTPretty#368
- gabrielfalcao/HTTPretty#377

Until they are fixed I'm suppressing them

Author: damdo

pusher_tests/test_requests_adapter.py

@@ -5,10 +5,20 @@
 from pusher import Pusher
 import unittest
 import httpretty
+import sys
 
 class TestRequestsBackend(unittest.TestCase):
 
   def setUp(self):
+
+    # temporary ignoring warnings until these are sorted:
+    # https://github.com/gabrielfalcao/HTTPretty/issues/368
+    # https://github.com/gabrielfalcao/HTTPretty/pull/377
+    if sys.version_info[0] >= 3:
+        import warnings
+        warnings.filterwarnings("ignore", category=ResourceWarning, message="unclosed file <_io.BufferedRandom name*")
+        warnings.filterwarnings("ignore", category=PendingDeprecationWarning, message="isAlive*")
+
     self.pusher = Pusher.from_url(u'http://key:secret@api.pusherapp.com/apps/4')
 
   @httpretty.activate