Fix many deprecation/resource warnings, and bump up test verbosity on travis

Some of the tests are being killed because we don't produce any output
when running parallel tests in a layer with -v1.

The amount of warnings made it hard to see real failures.

Also use more recent PyPy, and test on Py 3.6 (which produces the
'async' warnings we'll use to fix #104)

.travis.yml

@@ -5,11 +5,13 @@ matrix:
         - os: linux
           python: 2.7
         - os: linux
-          python: pypy-5.6.0
+          python: pypy
         - os: linux
           python: 3.4
         - os: linux
           python: 3.5
+        - os: linux
+          python: 3.6
         - os: linux
           python: 3.4
           env: ZEO_MTACCEPTOR=1
@@ -35,6 +37,6 @@ cache:
   directories:
     - eggs
 script:
-    - bin/test -v1j99
+    - bin/test -vv -j99
 notifications:
     email: false

src/ZEO/asyncio/client.py

@@ -122,7 +122,7 @@ class Protocol(base.Protocol):
             cr = self.loop.create_unix_connection(
                 self.protocol_factory, self.addr, ssl=self.ssl)
 
-        self._connecting = cr = asyncio.async(cr, loop=self.loop)
+        self._connecting = cr = asyncio.ensure_future(cr, loop=self.loop)
 
         @cr.add_done_callback
         def done_connecting(future):

src/ZEO/asyncio/mtacceptor.py

@@ -191,7 +191,7 @@ class Acceptor(asyncore.dispatcher):
                             server_hostname=''
                             )
 
-                asyncio.async(cr, loop=loop)
+                asyncio.ensure_future(cr, loop=loop)
                 loop.run_forever()
                 loop.close()
 

src/ZEO/asyncio/server.py

@@ -152,7 +152,7 @@ assert best_protocol_version in ServerProtocol.protocols
 def new_connection(loop, addr, socket, zeo_storage, msgpack):
     protocol = ServerProtocol(loop, addr, zeo_storage, msgpack)
     cr = loop.create_connection((lambda : protocol), sock=socket)
-    asyncio.async(cr, loop=loop)
+    asyncio.ensure_future(cr, loop=loop)
 
 class Delay(object):
     """Used to delay response to client for synchronous calls.
@@ -231,7 +231,7 @@ class Acceptor(object):
         else:
             cr = loop.create_unix_server(self.factory, addr, ssl=ssl)
 
-        f = asyncio.async(cr, loop=loop)
+        f = asyncio.ensure_future(cr, loop=loop)
         server = loop.run_until_complete(f)
 
         self.server = server
@@ -271,7 +271,7 @@ class Acceptor(object):
 
         self.server.close()
 
-        f = asyncio.async(self.server.wait_closed(), loop=loop)
+        f = asyncio.ensure_future(self.server.wait_closed(), loop=loop)
         @f.add_done_callback
         def server_closed(f):
             # stop the loop when the server closes:

src/ZEO/asyncio/tests.py

@@ -180,7 +180,7 @@ class ClientTests(Base, setupstack.TestCase, ClientRunner):
 
         # Now we're connected, the cache was initialized, and the
         # queued message has been sent:
-        self.assert_(client.connected.done())
+        self.assertTrue(client.connected.done())
         self.assertEqual(cache.getLastTid(), 'a'*8)
         self.assertEqual(self.pop(), (4, False, 'foo', (1, 2)))
 
@@ -192,7 +192,7 @@ class ClientTests(Base, setupstack.TestCase, ClientRunner):
 
         # Now we can make async calls:
         f2 = self.async('bar', 3, 4)
-        self.assert_(f2.done() and f2.exception() is None)
+        self.assertTrue(f2.done() and f2.exception() is None)
         self.assertEqual(self.pop(), (0, True, 'bar', (3, 4)))
 
         # Loading objects gets special handling to leverage the cache.
@@ -289,8 +289,8 @@ class ClientTests(Base, setupstack.TestCase, ClientRunner):
         self.assertEqual(f1.exception().args, (exc,))
 
         # Because we reconnected, a new protocol and transport were created:
-        self.assert_(protocol is not loop.protocol)
-        self.assert_(transport is not loop.transport)
+        self.assertTrue(protocol is not loop.protocol)
+        self.assertTrue(transport is not loop.transport)
         protocol = loop.protocol
         transport = loop.transport
 
@@ -313,7 +313,7 @@ class ClientTests(Base, setupstack.TestCase, ClientRunner):
 
         # Because the server tid matches the cache tid, we're done connecting
         wrapper.notify_connected.assert_called_with(client, {'length': 42})
-        self.assert_(client.connected.done() and not transport.data)
+        self.assertTrue(client.connected.done() and not transport.data)
         self.assertEqual(cache.getLastTid(), b'e'*8)
 
         # Because we were able to update the cache, we didn't have to
@@ -322,7 +322,7 @@ class ClientTests(Base, setupstack.TestCase, ClientRunner):
 
         # The close method closes the connection and cache:
         client.close()
-        self.assert_(transport.closed and cache.closed)
+        self.assertTrue(transport.closed and cache.closed)
 
         # The client doesn't reconnect
         self.assertEqual(loop.protocol, protocol)
@@ -351,7 +351,7 @@ class ClientTests(Base, setupstack.TestCase, ClientRunner):
         self.respond(4, dict(length=42))
 
         # Now that verification is done, we're done connecting
-        self.assert_(client.connected.done() and not transport.data)
+        self.assertTrue(client.connected.done() and not transport.data)
         self.assertEqual(cache.getLastTid(), b'e'*8)
 
         # And the cache has been updated:
@@ -388,7 +388,7 @@ class ClientTests(Base, setupstack.TestCase, ClientRunner):
         self.respond(4, dict(length=42))
 
         # Now that verification is done, we're done connecting
-        self.assert_(client.connected.done() and not transport.data)
+        self.assertTrue(client.connected.done() and not transport.data)
         self.assertEqual(cache.getLastTid(), b'e'*8)
 
         # But the cache is now empty and we invalidated the database cache
@@ -402,7 +402,7 @@ class ClientTests(Base, setupstack.TestCase, ClientRunner):
             addrs, ())
 
         # We haven't connected yet
-        self.assert_(protocol is None and transport is None)
+        self.assertTrue(protocol is None and transport is None)
 
         # There are 2 connection attempts outstanding:
         self.assertEqual(sorted(loop.connecting), addrs)
@@ -413,7 +413,7 @@ class ClientTests(Base, setupstack.TestCase, ClientRunner):
 
         # The failed connection is attempted in the future:
         delay, func, args, _ = loop.later.pop(0)
-        self.assert_(1 <= delay <= 2)
+        self.assertTrue(1 <= delay <= 2)
         func(*args)
         self.assertEqual(sorted(loop.connecting), addrs)
 
@@ -447,7 +447,7 @@ class ClientTests(Base, setupstack.TestCase, ClientRunner):
         self.pop()
         self.assertFalse(client.connected.done() or transport.data)
         delay, func, args, _ = loop.later.pop(1) # first in later is heartbeat
-        self.assert_(8 < delay < 10)
+        self.assertTrue(8 < delay < 10)
         self.assertEqual(len(loop.later), 1) # first in later is heartbeat
         func(*args) # connect again
         self.assertFalse(protocol is loop.protocol)
@@ -461,8 +461,8 @@ class ClientTests(Base, setupstack.TestCase, ClientRunner):
         self.pop(4)
         self.assertEqual(self.pop(), (3, False, 'get_info', ()))
         self.respond(3, dict(length=42))
-        self.assert_(client.connected.done() and not transport.data)
-        self.assert_(client.ready)
+        self.assertTrue(client.connected.done() and not transport.data)
+        self.assertTrue(client.ready)
 
     def test_readonly_fallback(self):
         addrs = [('1.2.3.4', 8200), ('2.2.3.4', 8200)]
@@ -493,7 +493,7 @@ class ClientTests(Base, setupstack.TestCase, ClientRunner):
 
         # At this point, the client is ready and using the protocol,
         # and the protocol is read-only:
-        self.assert_(client.ready)
+        self.assertTrue(client.ready)
         self.assertEqual(client.protocol, protocol)
         self.assertEqual(protocol.read_only, True)
         connected = client.connected
@@ -502,7 +502,7 @@ class ClientTests(Base, setupstack.TestCase, ClientRunner):
         self.assertEqual(self.pop(), (4, False, 'get_info', ()))
         self.respond(4, dict(length=42))
 
-        self.assert_(connected.done())
+        self.assertTrue(connected.done())
 
         # We connect the second address:
         loop.connect_connecting(addrs[1])
@@ -527,7 +527,7 @@ class ClientTests(Base, setupstack.TestCase, ClientRunner):
         self.assertFalse(client.protocol is protocol)
         self.assertEqual(client.protocol, loop.protocol)
         self.assertEqual(protocol.closed, True)
-        self.assert_(client.connected is not connected)
+        self.assertTrue(client.connected is not connected)
         self.assertFalse(client.connected.done())
         protocol, transport = loop.protocol, loop.transport
         self.assertEqual(protocol.read_only, False)
@@ -535,8 +535,8 @@ class ClientTests(Base, setupstack.TestCase, ClientRunner):
         # Now, we finish verification
         self.respond(2, 'b'*8)
         self.respond(3, dict(length=42))
-        self.assert_(client.ready)
-        self.assert_(client.connected.done())
+        self.assertTrue(client.ready)
+        self.assertTrue(client.connected.done())
 
     def test_invalidations_while_verifying(self):
         # While we're verifying, invalidations are ignored
@@ -553,8 +553,8 @@ class ClientTests(Base, setupstack.TestCase, ClientRunner):
 
         # We'll disconnect:
         protocol.connection_lost(Exception("lost"))
-        self.assert_(protocol is not loop.protocol)
-        self.assert_(transport is not loop.transport)
+        self.assertTrue(protocol is not loop.protocol)
+        self.assertTrue(transport is not loop.transport)
         protocol = loop.protocol
         transport = loop.transport
 
@@ -606,7 +606,7 @@ class ClientTests(Base, setupstack.TestCase, ClientRunner):
         with mock.patch("ZEO.asyncio.client.logger.error") as error:
             self.assertFalse(error.called)
             protocol.data_received(sized(self.enc + b'200'))
-            self.assert_(isinstance(error.call_args[0][1], ProtocolError))
+            self.assertTrue(isinstance(error.call_args[0][1], ProtocolError))
 
 
     def test_get_peername(self):

src/ZEO/tests/ConnectionTests.py

@@ -266,7 +266,7 @@ class ConnectionTests(CommonSetupTearDown):
         self.startServer(create=0, index=0, ro_svr=1)
         # Start a read-only-fallback client
         self._storage = self.openClientStorage(read_only_fallback=1)
-        self.assert_(self._storage.isReadOnly())
+        self.assertTrue(self._storage.isReadOnly())
         # Stores should fail here
         self.assertRaises(ReadOnlyError, self._dostore)
         self._storage.close()
@@ -493,7 +493,7 @@ class ConnectionTests(CommonSetupTearDown):
             # Wait for all threads to finish
             for t in threads:
                 t.join(60)
-                self.failIf(t.isAlive(), "%s didn't die" % t.getName())
+                self.assertFalse(t.isAlive(), "%s didn't die" % t.getName())
         finally:
             for t in threads:
                 t.closeclients()
@@ -949,7 +949,7 @@ class ReconnectionTests(CommonSetupTearDown):
                 break
             except ClientDisconnected:
                 time.sleep(0.5)
-        self.assert_(did_a_store)
+        self.assertTrue(did_a_store)
         self._storage.close()
 
 class TimeoutTests(CommonSetupTearDown):
@@ -971,7 +971,7 @@ class TimeoutTests(CommonSetupTearDown):
                 ):
                 break
         else:
-            self.assert_(False, 'bad logging')
+            self.assertTrue(False, 'bad logging')
 
         storage.close()
 
@@ -993,7 +993,7 @@ class TimeoutTests(CommonSetupTearDown):
     def checkTimeoutAfterVote(self):
         self._storage = storage = self.openClientStorage()
         # Assert that the zeo cache is empty
-        self.assert_(not list(storage._cache.contents()))
+        self.assertTrue(not list(storage._cache.contents()))
         # Create the object
         oid = storage.new_oid()
         obj = MinPO(7)
@@ -1005,17 +1005,17 @@ class TimeoutTests(CommonSetupTearDown):
         storage.tpc_vote(t)
         # Now sleep long enough for the storage to time out
         time.sleep(3)
-        self.assert_(
+        self.assertTrue(
             (not storage.is_connected())
             or
             (storage.connection_count_for_tests > old_connection_count)
             )
         storage._wait()
-        self.assert_(storage.is_connected())
+        self.assertTrue(storage.is_connected())
         # We expect finish to fail
         self.assertRaises(ClientDisconnected, storage.tpc_finish, t)
         # The cache should still be empty
-        self.assert_(not list(storage._cache.contents()))
+        self.assertTrue(not list(storage._cache.contents()))
         # Load should fail since the object should not be in either the cache
         # or the server.
         self.assertRaises(KeyError, storage.load, oid, '')
@@ -1079,10 +1079,10 @@ class MSTThread(threading.Thread):
             for c in clients:
                 # Check that we got serials for all oids
                 for oid in c.__oids:
-                    testcase.failUnless(oid in c.__serials)
+                    testcase.assertIn(oid, c.__serials)
                 # Check that we got serials for no other oids
                 for oid in c.__serials.keys():
-                    testcase.failUnless(oid in c.__oids)
+                    testcase.assertIn(oid, c.__oids)
 
     def closeclients(self):
         # Close clients opened by run()
@@ -1102,7 +1102,8 @@ def short_timeout(self):
 
 # Run IPv6 tests if V6 sockets are supported
 try:
-    socket.socket(socket.AF_INET6, socket.SOCK_STREAM)
+    with socket.socket(socket.AF_INET6, socket.SOCK_STREAM) as s:
+        pass
 except (socket.error, AttributeError):
     pass
 else:

src/ZEO/tests/IterationTests.py

@@ -33,7 +33,7 @@ class IterationTests(object):
         # make sure there's no race conditions cleaning out the weak refs
         gc.disable()
         try:
-            self.assertEquals(0, len(self._storage._iterator_ids))
+            self.assertEqual(0, len(self._storage._iterator_ids))
         except AssertionError:
             # Ok, we have ids. That should also mean that the
             # weak dictionary has the same length.
@@ -50,7 +50,7 @@ class IterationTests(object):
 
             self.assertEqual(len(self._storage._iterators),
                              len(self._storage._iterator_ids))
-            self.assertEquals(0, len(self._storage._iterator_ids))
+            self.assertEqual(0, len(self._storage._iterator_ids))
         finally:
             if gc_enabled:
                 gc.enable()
@@ -63,7 +63,7 @@ class IterationTests(object):
 
         iid = server.iterator_start(None, None)
         # None signals the end of iteration.
-        self.assertEquals(None, server.iterator_next(iid))
+        self.assertEqual(None, server.iterator_next(iid))
         # The server has disposed the iterator already.
         self.assertRaises(KeyError, server.iterator_next, iid)
 
@@ -80,10 +80,10 @@ class IterationTests(object):
         # At this point, a wrapping iterator might not have called the CS
         # iterator yet. We'll consume one item to make sure this happens.
         six.advance_iterator(iterator)
-        self.assertEquals(1, len(self._storage._iterator_ids))
+        self.assertEqual(1, len(self._storage._iterator_ids))
         iid = list(self._storage._iterator_ids)[0]
-        self.assertEquals([], list(iterator))
-        self.assertEquals(0, len(self._storage._iterator_ids))
+        self.assertEqual([], list(iterator))
+        self.assertEqual(0, len(self._storage._iterator_ids))
 
         # The iterator has run through, so the server has already disposed it.
         self.assertRaises(KeyError, self._storage._call, 'iterator_next', iid)
@@ -98,7 +98,7 @@ class IterationTests(object):
         # don't see the transaction we just wrote being picked up, because
         # iterators only see the state from the point in time when they were
         # created.)
-        self.assert_(list(iterator))
+        self.assertTrue(list(iterator))
 
     def checkIteratorGCStorageCommitting(self):
         # We want the iterator to be garbage-collected, so we don't keep any
@@ -111,7 +111,7 @@ class IterationTests(object):
         self._dostore()
         six.advance_iterator(self._storage.iterator())
 
-        self.assertEquals(1, len(self._storage._iterator_ids))
+        self.assertEqual(1, len(self._storage._iterator_ids))
         iid = list(self._storage._iterator_ids)[0]
 
         # GC happens at the transaction boundary. After that, both the storage
@@ -154,7 +154,7 @@ class IterationTests(object):
         # as well. I'm calling this directly to avoid accidentally
         # calling tpc_abort implicitly.
         self._storage.notify_disconnected()
-        self.assertEquals(0, len(self._storage._iterator_ids))
+        self.assertEqual(0, len(self._storage._iterator_ids))
 
     def checkIteratorParallel(self):
         self._dostore()
@@ -163,10 +163,10 @@ class IterationTests(object):
         iter2 = self._storage.iterator()
         txn_info1 = six.advance_iterator(iter1)
         txn_info2 = six.advance_iterator(iter2)
-        self.assertEquals(txn_info1.tid, txn_info2.tid)
+        self.assertEqual(txn_info1.tid, txn_info2.tid)
         txn_info1 = six.advance_iterator(iter1)
         txn_info2 = six.advance_iterator(iter2)
-        self.assertEquals(txn_info1.tid, txn_info2.tid)
+        self.assertEqual(txn_info1.tid, txn_info2.tid)
         self.assertRaises(StopIteration, next, iter1)
         self.assertRaises(StopIteration, next, iter2)
 

src/ZEO/tests/ThreadTests.py

@@ -119,7 +119,7 @@ class ThreadTests(object):
         for t in threads:
             t.join(30)
         for i in threads:
-            self.failUnless(not t.isAlive())
+            self.assertFalse(t.isAlive())
 
     # Helper for checkMTStores
     def mtstorehelper(self):

src/ZEO/tests/testConversionSupport.py

@@ -122,6 +122,9 @@ First, fake out the connection manager so we can make a connection:
     ...            next = None
     ...
     ...        return oid, oid*8, 'data ' + oid, next
+    ...
+    ...    def close(self):
+    ...        pass
 
     >>> client = ZEO.client(
     ...     '', wait=False, _client_factory=Client)
@@ -138,6 +141,7 @@ Now we'll have our way with it's private _server attr:
     2
     3
     4
+    >>> client.close()
 
 """
 

src/ZEO/tests/testTransactionBuffer.py

@@ -51,6 +51,7 @@ class TransBufTests(unittest.TestCase):
         for i, (oid, d, resolved) in enumerate(tbuf):
             self.assertEqual((oid, d), data[i][0])
             self.assertEqual(resolved, data[i][1])
+        tbuf.close()
 
 def test_suite():
     return unittest.makeSuite(TransBufTests, 'check')

src/ZEO/tests/testZEO.py

@@ -221,15 +221,15 @@ class MiscZEOTests(object):
         # available right after successful connection, this is required now.
         addr = self._storage._addr
         storage2 = ClientStorage(addr, **self._client_options())
-        self.assert_(storage2.is_connected())
-        self.assertEquals(ZODB.utils.z64, storage2.lastTransaction())
+        self.assertTrue(storage2.is_connected())
+        self.assertEqual(ZODB.utils.z64, storage2.lastTransaction())
         storage2.close()
 
         self._dostore()
         storage3 = ClientStorage(addr, **self._client_options())
-        self.assert_(storage3.is_connected())
-        self.assertEquals(8, len(storage3.lastTransaction()))
-        self.assertNotEquals(ZODB.utils.z64, storage3.lastTransaction())
+        self.assertTrue(storage3.is_connected())
+        self.assertEqual(8, len(storage3.lastTransaction()))
+        self.assertNotEqual(ZODB.utils.z64, storage3.lastTransaction())
         storage3.close()
 
 class GenericTestBase(
@@ -422,12 +422,12 @@ class FileStorageTests(FullGenericTests):
         # ClientStorage itself doesn't implement IStorageIteration, but the
         # FileStorage on the other end does, and thus the ClientStorage
         # instance that is connected to it reflects this.
-        self.failIf(ZODB.interfaces.IStorageIteration.implementedBy(
+        self.assertFalse(ZODB.interfaces.IStorageIteration.implementedBy(
             ZEO.ClientStorage.ClientStorage))
-        self.failUnless(ZODB.interfaces.IStorageIteration.providedBy(
+        self.assertTrue(ZODB.interfaces.IStorageIteration.providedBy(
             self._storage))
         # This is communicated using ClientStorage's _info object:
-        self.assertEquals(self._expected_interfaces,
+        self.assertEqual(self._expected_interfaces,
             self._storage._info['interfaces']
             )
 
@@ -552,7 +552,7 @@ class ZRPCConnectionTests(ZEO.tests.ConnectionTests.CommonSetupTearDown):
 
         log = str(handler)
         handler.uninstall()
-        self.assert_("Client loop stopped unexpectedly" in log)
+        self.assertTrue("Client loop stopped unexpectedly" in log)
 
     def checkExceptionLogsAtError(self):
         # Test the exceptions are logged at error
@@ -570,7 +570,7 @@ class ZRPCConnectionTests(ZEO.tests.ConnectionTests.CommonSetupTearDown):
         self.assertRaises(ZODB.POSException.POSKeyError,
                           self._storage.history, None, None)
         handler.uninstall()
-        self.assertEquals(str(handler), '')
+        self.assertEqual(str(handler), '')
 
     def checkConnectionInvalidationOnReconnect(self):
 
@@ -639,7 +639,7 @@ class CommonBlobTests(object):
         tfname = bd_fh.name
         oid = self._storage.new_oid()
         data = zodb_pickle(blob)
-        self.assert_(os.path.exists(tfname))
+        self.assertTrue(os.path.exists(tfname))
 
         t = TransactionMetaData()
         try:
@@ -650,9 +650,9 @@ class CommonBlobTests(object):
         except:
             self._storage.tpc_abort(t)
             raise
-        self.assert_(not os.path.exists(tfname))
+        self.assertTrue(not os.path.exists(tfname))
         filename = self._storage.fshelper.getBlobFilename(oid, revid)
-        self.assert_(os.path.exists(filename))
+        self.assertTrue(os.path.exists(filename))
         with open(filename, 'rb') as f:
             self.assertEqual(somedata, f.read())
 
@@ -693,11 +693,11 @@ class CommonBlobTests(object):
         filename = self._storage.loadBlob(oid, serial)
         with open(filename, 'rb') as f:
             self.assertEqual(somedata, f.read())
-        self.assert_(not(os.stat(filename).st_mode & stat.S_IWRITE))
-        self.assert_((os.stat(filename).st_mode & stat.S_IREAD))
+        self.assertTrue(not(os.stat(filename).st_mode & stat.S_IWRITE))
+        self.assertTrue((os.stat(filename).st_mode & stat.S_IREAD))
 
     def checkTemporaryDirectory(self):
-        self.assertEquals(os.path.join(self.blob_cache_dir, 'tmp'),
+        self.assertEqual(os.path.join(self.blob_cache_dir, 'tmp'),
                           self._storage.temporaryDirectory())
 
     def checkTransactionBufferCleanup(self):
@@ -726,14 +726,14 @@ class BlobAdaptedFileStorageTests(FullGenericTests, CommonBlobTests):
                 somedata.write(("%s\n" % i).encode('ascii'))
 
             def check_data(path):
-                self.assert_(os.path.exists(path))
-                f = open(path, 'rb')
+                self.assertTrue(os.path.exists(path))
                 somedata.seek(0)
                 d1 = d2 = 1
-                while d1 or d2:
-                    d1 = f.read(8096)
-                    d2 = somedata.read(8096)
-                    self.assertEqual(d1, d2)
+                with open(path, 'rb') as f:
+                    while d1 or d2:
+                        d1 = f.read(8096)
+                        d2 = somedata.read(8096)
+                        self.assertEqual(d1, d2)
             somedata.seek(0)
 
             blob = Blob()
@@ -743,7 +743,7 @@ class BlobAdaptedFileStorageTests(FullGenericTests, CommonBlobTests):
                 tfname = bd_fh.name
             oid = self._storage.new_oid()
             data = zodb_pickle(blob)
-            self.assert_(os.path.exists(tfname))
+            self.assertTrue(os.path.exists(tfname))
 
             t = TransactionMetaData()
             try:
@@ -756,7 +756,7 @@ class BlobAdaptedFileStorageTests(FullGenericTests, CommonBlobTests):
                 raise
 
             # The uncommitted data file should have been removed
-            self.assert_(not os.path.exists(tfname))
+            self.assertTrue(not os.path.exists(tfname))
 
             # The file should be in the cache ...
             filename = self._storage.fshelper.getBlobFilename(oid, revid)
@@ -768,7 +768,7 @@ class BlobAdaptedFileStorageTests(FullGenericTests, CommonBlobTests):
                 ZODB.blob.BushyLayout().getBlobFilePath(oid, revid),
                 )
 
-            self.assert_(server_filename.startswith(self.blobdir))
+            self.assertTrue(server_filename.startswith(self.blobdir))
             check_data(server_filename)
 
             # If we remove it from the cache and call loadBlob, it should
@@ -1203,7 +1203,7 @@ def runzeo_without_configfile():
     ... ''' % sys.path)
 
     >>> import subprocess, re
-    >>> print(re.sub(b'\d\d+|[:]', b'', subprocess.Popen(
+    >>> print(re.sub(br'\d\d+|[:]', b'', subprocess.Popen(
     ...     [sys.executable, 'runzeo', '-a:0', '-ft', '--test'],
     ...     stdout=subprocess.PIPE, stderr=subprocess.STDOUT,
     ...     ).stdout.read()).decode('ascii'))

src/ZEO/tests/testZEO2.py

@@ -149,6 +149,7 @@ We can start another client and get the storage lock.
     >>> zs1.tpc_finish('1').set_sender(0, zs1.connection)
 
     >>> fs.close()
+    >>> server.close()
     """
 
 def errors_in_vote_should_clear_lock():
@@ -408,6 +409,7 @@ If clients disconnect while waiting, they will be dequeued:
 
     >>> logging.getLogger('ZEO').setLevel(logging.NOTSET)
     >>> logging.getLogger('ZEO').removeHandler(handler)
+    >>> server.close()
     """
 
 def lock_sanity_check():
@@ -489,6 +491,8 @@ ZEOStorage as closed and see if trying to get a lock cleans it up:
 
     >>> logging.getLogger('ZEO').setLevel(logging.NOTSET)
     >>> logging.getLogger('ZEO').removeHandler(handler)
+
+    >>> server.close()
     """
 
 def test_suite():
@@ -507,4 +511,3 @@ def test_suite():
 
 if __name__ == '__main__':
     unittest.main(defaultTest='test_suite')
-

src/ZEO/tests/test_cache.py

@@ -141,12 +141,12 @@ class CacheTests(ZODB.tests.util.TestCase):
         for i in range(50):
             n = p64(i)
             cache.store(n, n, None, data[i])
-            self.assertEquals(len(cache), i + 1)
+            self.assertEqual(len(cache), i + 1)
         # The cache is now almost full.  The next insert
         # should delete some objects.
         n = p64(50)
         cache.store(n, n, None, data[51])
-        self.assert_(len(cache) < 51)
+        self.assertTrue(len(cache) < 51)
 
         # TODO:  Need to make sure eviction of non-current data
         # are handled correctly.
@@ -174,41 +174,44 @@ class CacheTests(ZODB.tests.util.TestCase):
         eq(dict([(k, dict(v)) for (k, v) in copy.noncurrent.items()]),
            dict([(k, dict(v)) for (k, v) in self.cache.noncurrent.items()]),
            )
+        copy.close()
 
     def testCurrentObjectLargerThanCache(self):
         if self.cache.path:
             os.remove(self.cache.path)
+        self.cache.close()
         self.cache = ZEO.cache.ClientCache(size=50)
 
         # We store an object that is a bit larger than the cache can handle.
         self.cache.store(n1, n2, None, "x"*64)
         # We can see that it was not stored.
-        self.assertEquals(None, self.cache.load(n1))
+        self.assertEqual(None, self.cache.load(n1))
         # If an object cannot be stored in the cache, it must not be
         # recorded as current.
-        self.assert_(n1 not in self.cache.current)
+        self.assertTrue(n1 not in self.cache.current)
         # Regression test: invalidation must still work.
         self.cache.invalidate(n1, n2)
 
     def testOldObjectLargerThanCache(self):
         if self.cache.path:
             os.remove(self.cache.path)
+        self.cache.close()
         cache = ZEO.cache.ClientCache(size=50)
 
         # We store an object that is a bit larger than the cache can handle.
         cache.store(n1, n2, n3, "x"*64)
         # We can see that it was not stored.
-        self.assertEquals(None, cache.load(n1))
+        self.assertEqual(None, cache.load(n1))
         # If an object cannot be stored in the cache, it must not be
         # recorded as non-current.
-        self.assert_(1 not in cache.noncurrent)
+        self.assertTrue(1 not in cache.noncurrent)
 
     def testVeryLargeCaches(self):
         cache = ZEO.cache.ClientCache('cache', size=(1<<32)+(1<<20))
         cache.store(n1, n2, None, b"x")
         cache.close()
         cache = ZEO.cache.ClientCache('cache', size=(1<<33)+(1<<20))
-        self.assertEquals(cache.load(n1), (b'x', n2))
+        self.assertEqual(cache.load(n1), (b'x', n2))
         cache.close()
 
     def testConversionOfLargeFreeBlocks(self):
@@ -225,8 +228,8 @@ class CacheTests(ZODB.tests.util.TestCase):
         cache.close()
         with open('cache', 'rb') as f:
             f.seek(12)
-            self.assertEquals(f.read(1), b'f')
-            self.assertEquals(struct.unpack(">I", f.read(4))[0],
+            self.assertEqual(f.read(1), b'f')
+            self.assertEqual(struct.unpack(">I", f.read(4))[0],
                             ZEO.cache.max_block_size)
 
     if not sys.platform.startswith('linux'):
@@ -261,8 +264,8 @@ class CacheTests(ZODB.tests.util.TestCase):
                 'cache', size=ZEO.cache.ZEC_HEADER_SIZE+100*recsize+extra)
             for i in range(100):
                 cache.store(p64(i), n1, None, data)
-            self.assertEquals(len(cache), 100)
-            self.assertEquals(os.path.getsize(
+            self.assertEqual(len(cache), 100)
+            self.assertEqual(os.path.getsize(
                 'cache'), ZEO.cache.ZEC_HEADER_SIZE+100*recsize+extra)
 
             # Now make it smaller
@@ -270,10 +273,10 @@ class CacheTests(ZODB.tests.util.TestCase):
             small = 50
             cache = ZEO.cache.ClientCache(
                 'cache', size=ZEO.cache.ZEC_HEADER_SIZE+small*recsize+extra)
-            self.assertEquals(len(cache), small)
-            self.assertEquals(os.path.getsize(
+            self.assertEqual(len(cache), small)
+            self.assertEqual(os.path.getsize(
                 'cache'), ZEO.cache.ZEC_HEADER_SIZE+small*recsize+extra)
-            self.assertEquals(set(u64(oid) for (oid, tid) in cache.contents()),
+            self.assertEqual(set(u64(oid) for (oid, tid) in cache.contents()),
                               set(range(small)))
             for i in range(100, 110):
                 cache.store(p64(i), n1, None, data)
@@ -282,9 +285,9 @@ class CacheTests(ZODB.tests.util.TestCase):
             # evicted because of the optimization to assure that we
             # always get a free block after a new allocated block.
             expected_len = small - 1
-            self.assertEquals(len(cache), expected_len)
+            self.assertEqual(len(cache), expected_len)
             expected_oids = set(list(range(11, 50))+list(range(100, 110)))
-            self.assertEquals(
+            self.assertEqual(
                 set(u64(oid) for (oid, tid) in cache.contents()),
                 expected_oids)
 
@@ -292,8 +295,8 @@ class CacheTests(ZODB.tests.util.TestCase):
             cache.close()
             cache = ZEO.cache.ClientCache(
                 'cache', size=ZEO.cache.ZEC_HEADER_SIZE+small*recsize+extra)
-            self.assertEquals(len(cache), expected_len)
-            self.assertEquals(set(u64(oid) for (oid, tid) in cache.contents()),
+            self.assertEqual(len(cache), expected_len)
+            self.assertEqual(set(u64(oid) for (oid, tid) in cache.contents()),
                               expected_oids)
 
             # Now make it bigger
@@ -301,10 +304,10 @@ class CacheTests(ZODB.tests.util.TestCase):
             large = 150
             cache = ZEO.cache.ClientCache(
                 'cache', size=ZEO.cache.ZEC_HEADER_SIZE+large*recsize+extra)
-            self.assertEquals(len(cache), expected_len)
-            self.assertEquals(os.path.getsize(
+            self.assertEqual(len(cache), expected_len)
+            self.assertEqual(os.path.getsize(
                 'cache'), ZEO.cache.ZEC_HEADER_SIZE+large*recsize+extra)
-            self.assertEquals(set(u64(oid) for (oid, tid) in cache.contents()),
+            self.assertEqual(set(u64(oid) for (oid, tid) in cache.contents()),
                               expected_oids)
 
 
@@ -313,19 +316,19 @@ class CacheTests(ZODB.tests.util.TestCase):
 
             # We use large-2 for the same reason we used small-1 above.
             expected_len = large-2
-            self.assertEquals(len(cache), expected_len)
+            self.assertEqual(len(cache), expected_len)
             expected_oids = set(list(range(11, 50)) +
                                 list(range(106, 110)) +
                                 list(range(200, 305)))
-            self.assertEquals(set(u64(oid) for (oid, tid) in cache.contents()),
+            self.assertEqual(set(u64(oid) for (oid, tid) in cache.contents()),
                               expected_oids)
 
             # Make sure we can reopen with same size
             cache.close()
             cache = ZEO.cache.ClientCache(
                 'cache', size=ZEO.cache.ZEC_HEADER_SIZE+large*recsize+extra)
-            self.assertEquals(len(cache), expected_len)
-            self.assertEquals(set(u64(oid) for (oid, tid) in cache.contents()),
+            self.assertEqual(len(cache), expected_len)
+            self.assertEqual(set(u64(oid) for (oid, tid) in cache.contents()),
                               expected_oids)
 
             # Cleanup

src/ZEO/tests/testssl.py

@@ -118,7 +118,7 @@ class SSLConfigTest(ZEOConfigTestBase):
         stop()
 
 @unittest.skipIf(forker.ZEO4_SERVER, "ZEO4 servers don't support SSL")
-@mock.patch(('asyncio' if PY3 else 'trollius') + '.async')
+@mock.patch(('asyncio' if PY3 else 'trollius') + '.ensure_future')
 @mock.patch(('asyncio' if PY3 else 'trollius') + '.set_event_loop')
 @mock.patch(('asyncio' if PY3 else 'trollius') + '.new_event_loop')
 @mock.patch('ZEO.asyncio.client.new_event_loop')