diff --git a/newsfragments/3637.minor b/newsfragments/3637.minor
new file mode 100644
index 000000000..e69de29bb
diff --git a/src/allmydata/test/common.py b/src/allmydata/test/common.py
index 533cc4fc6..94a59f5c9 100644
--- a/src/allmydata/test/common.py
+++ b/src/allmydata/test/common.py
@@ -323,7 +323,7 @@ class AdoptedServerPort(object):
     """
     prefix = "adopt-socket"
 
-    def parseStreamServer(self, reactor, fd):
+    def parseStreamServer(self, reactor, fd): # type: ignore # https://twistedmatrix.com/trac/ticket/10134
         log.msg("Adopting {}".format(fd))
         # AdoptedStreamServerEndpoint wants to own the file descriptor.  It
         # will duplicate it and then close the one we pass in.  This means it
@@ -425,6 +425,9 @@ class DummyProducer(object):
     def resumeProducing(self):
         pass
 
+    def stopProducing(self):
+        pass
+
 @implementer(IImmutableFileNode)
 class FakeCHKFileNode(object):  # type: ignore # incomplete implementation
     """I provide IImmutableFileNode, but all of my data is stored in a
diff --git a/src/allmydata/test/test_multi_introducers.py b/src/allmydata/test/test_multi_introducers.py
index 520a5a69a..bb22d551f 100644
--- a/src/allmydata/test/test_multi_introducers.py
+++ b/src/allmydata/test/test_multi_introducers.py
@@ -175,6 +175,3 @@ class NoDefault(unittest.TestCase):
         self.yaml_path.setContent(yamlutil.safe_dump(connections))
         myclient = yield create_client(self.basedir)
         self.assertEquals(len(myclient.introducer_clients), 0)
-
-if __name__ == "__main__":
-    unittest.main()
diff --git a/src/allmydata/test/test_repairer.py b/src/allmydata/test/test_repairer.py
index 63a54a505..88696000c 100644
--- a/src/allmydata/test/test_repairer.py
+++ b/src/allmydata/test/test_repairer.py
@@ -30,9 +30,6 @@ MAX_DELTA_READS = 10 * READ_LEEWAY # N = 10
 timeout=240 # François's ARM box timed out after 120 seconds of Verifier.test_corrupt_crypttext_hashtree
 
 class RepairTestMixin(object):
-    def failUnlessIsInstance(self, x, xtype):
-        self.failUnless(isinstance(x, xtype), x)
-
     def _count_reads(self):
         sum_of_read_counts = 0
         for (i, ss, storedir) in self.iterate_servers():
diff --git a/src/allmydata/test/web/test_web.py b/src/allmydata/test/web/test_web.py
index 803aba34e..6b25305c6 100644
--- a/src/allmydata/test/web/test_web.py
+++ b/src/allmydata/test/web/test_web.py
@@ -108,7 +108,7 @@ class FakeNodeMaker(NodeMaker):
         return n.create(contents, version=version)
 
 class FakeUploader(service.Service):
-    name = "uploader"
+    name = "uploader" # type: ignore # https://twistedmatrix.com/trac/ticket/10135
     helper_furl = None
     helper_connected = False
 
@@ -254,7 +254,7 @@ class FakeLeaseChecker(object):
                 "remaining-wait-time": 0}
 
 class FakeStorageServer(service.MultiService):
-    name = 'storage'
+    name = 'storage' # type: ignore # https://twistedmatrix.com/trac/ticket/10135
     def __init__(self, nodeid, nickname):
         service.MultiService.__init__(self)
         self.my_nodeid = nodeid