run python 3.5 on travis, adopt timeouts

Also
- Report the five slowest tests to watch for risk of timeout
- Double timeouts.
  Maybe that helps pypy on travis to finish successfully.

.travis.yml

@@ -16,6 +16,6 @@ install:
   - pip install coveralls
   #- pip install pytest  # installed by Travis by default already
 script:
-  - RUN_SLOW_TESTS_TOO=1 py.test --cov rq
+  - RUN_SLOW_TESTS_TOO=1 py.test --cov rq --durations=5
 after_success:
   - coveralls

tests/test_worker.py

@@ -578,13 +578,15 @@ def kill_worker(pid, double_kill):
 class TestWorkerShutdown(RQTestCase):
     def setUp(self):
         # we want tests to fail if signal are ignored and the work remain
-        # running, so set a signal to kill them after 5 seconds
+        # running, so set a signal to kill them after X seconds
+        self.killtimeout = 10
         signal.signal(signal.SIGALRM, self._timeout)
-        signal.alarm(5)
+        signal.alarm(self.killtimeout)
 
     def _timeout(self, signal, frame):
-        raise AssertionError("test still running after 5 seconds, "
-                             "likely the worker wasn't shutdown correctly")
+        raise AssertionError(
+            "test still running after %i seconds, likely the worker wasn't shutdown correctly" % self.killtimeout
+        )
 
     @slow
     def test_idle_worker_warm_shutdown(self):

tox.ini

@@ -2,7 +2,7 @@
 envlist=py26,py27,py33,py34,py35,pypy,flake8
 
 [testenv]
-commands=py.test --cov rq {posargs}
+commands=py.test --cov rq --durations=5 {posargs}
 deps=
     pytest
     pytest-cov