diff --git a/run-tests.sh b/run-tests.sh
new file mode 100755
index 00000000..6e448460
--- /dev/null
+++ b/run-tests.sh
@@ -0,0 +1,8 @@
+#!/bin/sh
+set -e
+set -x
+
+for d in $TOOZ_TEST_URLS
+do
+    TOOZ_TEST_URL=$d $*
+done
diff --git a/tooz/tests/__init__.py b/tooz/tests/__init__.py
index e9491033..c9a0bf70 100644
--- a/tooz/tests/__init__.py
+++ b/tooz/tests/__init__.py
@@ -56,7 +56,7 @@ class TestWithCoordinator(testcase.TestCase):
     def setUp(self):
         super(TestWithCoordinator, self).setUp()
         if self.url is None:
-            self.skipTest("No URL set for this driver")
+            raise RuntimeError("No URL set for this driver")
         self.useFixture(fixtures.NestedTempfile())
         self.group_id = get_random_uuid()
         self.member_id = get_random_uuid()
diff --git a/tooz/tests/test_coordination.py b/tooz/tests/test_coordination.py
index c177100a..611aa89c 100644
--- a/tooz/tests/test_coordination.py
+++ b/tooz/tests/test_coordination.py
@@ -978,18 +978,6 @@ class TestAPI(tests.TestWithCoordinator):
         self.assertTrue(lock.release())
 
 
-class ZakeTestAPI(TestAPI):
-    url = "zake://"
-
-
-class IPCTestAPI(TestAPI):
-    url = "ipc://"
-
-
-class FileTestAPI(TestAPI):
-    url = "file:///tmp"
-
-
 class TestHook(testcase.TestCase):
     def setUp(self):
         super(TestHook, self).setUp()
diff --git a/tox.ini b/tox.ini
index f98080a0..40c0c981 100644
--- a/tox.ini
+++ b/tox.ini
@@ -14,18 +14,18 @@ deps = .[test,zake,ipc,memcached,mysql,etcd]
     mysql: .[mysql]
     etcd: .[etcd]
     consul: .[consul]
+setenv =
+    TOOZ_TEST_URLS = file:///tmp zake:// ipc://
 # NOTE(tonyb): This project has chosen to *NOT* consume upper-constraints.txt
-commands = {toxinidir}/tools/pretty_tox.sh "{posargs}"
+commands =
+    {toxinidir}/run-tests.sh {toxinidir}/tools/pretty_tox.sh "{posargs}"
+    {toxinidir}/run-examples.sh
 
 [testenv:venv]
 # This target is used by the gate go run Sphinx to build the doc
 deps = .[doc]
 commands = {posargs}
 
-[testenv:py27]
-commands = {toxinidir}/tools/pretty_tox.sh "{posargs}"
-    {toxinidir}/run-examples.sh
-
 [testenv:py27-zookeeper]
 commands = pifpaf -e TOOZ_TEST run zookeeper -- {toxinidir}/tools/pretty_tox.sh "{posargs}"