tests: don't use SignalMixin

It seems like we no longer need it, and it screws up something internal in
trial which causes trial's TestCase.mktemp() method to exhibit wrong behavior
(always using a certain test method name instead of using the current test
method name), and I wish to use TestCase.mktemp().

Of course, it is possible that the buildbot is about to tell me that we do
still require SignalMixin on some of our platforms...

diff --git a/src/allmydata/test/common.py b/src/allmydata/test/common.py
index 9f737273c6e8be7cef8c4ce633a133ca88f1db76..1f6a91d6d264d47d5bfba3742fd0593e4e3155a2 100644 (file)
--- a/src/allmydata/test/common.py
+++ b/src/allmydata/test/common.py
@@ -194,8 +194,7 @@ class LoggingServiceParent(service.MultiService):
         return log.msg(*args, **kwargs)
 
 
-class SystemTestMixin(testutil.SignalMixin, testutil.PollMixin,
-                      testutil.StallMixin):
+class SystemTestMixin(testutil.PollMixin, testutil.StallMixin):
 
     def setUp(self):
         self.sparent = service.MultiService()