diff --git a/plum/tests/service_collection_test.py b/plum/tests/service_collection_test.py
index 88641c0a9..1715c2999 100644
--- a/plum/tests/service_collection_test.py
+++ b/plum/tests/service_collection_test.py
@@ -1,9 +1,9 @@
 from plum.service import Service
 from plum.service_collection import ServiceCollection
-from unittest import TestCase
+from .testcases import ServiceTestCase
 
 
-class ServiceCollectionTest(TestCase):
+class ServiceCollectionTest(ServiceTestCase):
     def test_from_dict(self):
         collection = ServiceCollection.from_dicts(None, [
             {
@@ -38,7 +38,3 @@ class ServiceCollectionTest(TestCase):
         
         self.assertEqual(collection[0].name, 'db')
         self.assertEqual(collection[1].name, 'web')
-
-
-
-
diff --git a/plum/tests/service_test.py b/plum/tests/service_test.py
index 992852337..49c4d5854 100644
--- a/plum/tests/service_test.py
+++ b/plum/tests/service_test.py
@@ -1,29 +1,5 @@
-from unittest import TestCase
-from docker import Client
 from plum import Service
-import os
-
-
-if os.environ.get('DOCKER_URL'):
-    client = Client(os.environ['DOCKER_URL'])
-else:
-    client = Client()
-client.pull('ubuntu')
-
-
-class ServiceTestCase(TestCase):
-    def setUp(self):
-        for c in client.containers(all=True):
-            client.kill(c['Id'])
-            client.remove_container(c['Id'])
-
-    def create_service(self, name):
-        return Service(
-            name=name,
-            client=client,
-            image="ubuntu",
-            command=["/bin/sleep", "300"],
-        )
+from .testcases import ServiceTestCase
 
 
 class NameTestCase(ServiceTestCase):
diff --git a/plum/tests/testcases.py b/plum/tests/testcases.py
new file mode 100644
index 000000000..7be5b99be
--- /dev/null
+++ b/plum/tests/testcases.py
@@ -0,0 +1,30 @@
+from docker import Client
+from plum.service import Service
+import os
+from unittest import TestCase
+
+
+class ServiceTestCase(TestCase):
+    @classmethod
+    def setUpClass(cls):
+        if os.environ.get('DOCKER_URL'):
+            cls.client = Client(os.environ['DOCKER_URL'])
+        else:
+            cls.client = Client()
+        cls.client.pull('ubuntu')
+
+    def setUp(self):
+        for c in self.client.containers(all=True):
+            self.client.kill(c['Id'])
+            self.client.remove_container(c['Id'])
+
+    def create_service(self, name):
+        return Service(
+            name=name,
+            client=self.client,
+            image="ubuntu",
+            command=["/bin/sleep", "300"],
+        )
+
+
+