Allow skipping the slow testmanylinux

It's not so much about tests being slow: some just get stuck and timeout
travis.

Skipped all tests taking about more than 0.2s to run on my laptop.
Fast testing takes about 8s instead of 24.

1 files changed, 3 insertions, 1 deletions

diff --git a/tests/test_transaction.py b/tests/test_transaction.py
index 2dc44ec..36947de 100755
--- a/tests/test_transaction.py
+++ b/tests/test_transaction.py
@@ -23,7 +23,7 @@
 # License for more details.
 
 import threading
-from testutils import unittest, ConnectingTestCase, skip_before_postgres
+from testutils import unittest, ConnectingTestCase, skip_before_postgres, slow
 
 import psycopg2
 from psycopg2.extensions import (
@@ -131,6 +131,7 @@ class DeadlockSerializationTests(ConnectingTestCase):
 
         ConnectingTestCase.tearDown(self)
 
+    @slow
     def test_deadlock(self):
         self.thread1_error = self.thread2_error = None
         step1 = threading.Event()
@@ -178,6 +179,7 @@ class DeadlockSerializationTests(ConnectingTestCase):
         self.assertTrue(isinstance(
             error, psycopg2.extensions.TransactionRollbackError))
 
+    @slow
     def test_serialisation_failure(self):
         self.thread1_error = self.thread2_error = None
         step1 = threading.Event()