diff --git a/ovirtlago/testlib.py b/ovirtlago/testlib.py
index 14b3ae1e..54a479a6 100644
--- a/ovirtlago/testlib.py
+++ b/ovirtlago/testlib.py
@@ -70,6 +70,19 @@ def wrapper(prefix, *args, **kwargs):
     return wrapper
 
 
+def with_ovirt_api4(func):
+    @functools.wraps(func)
+    @with_ovirt_prefix
+    def wrapper(prefix, *args, **kwargs):
+        return func(
+            prefix.virt_env.engine_vm().get_api(api_ver=4),
+            *args,
+            **kwargs
+        )
+
+    return wrapper
+
+
 def continue_on_failure(func):
     func.continue_on_failure = True
     return func
@@ -132,8 +145,9 @@ def wrapped_test():
                     failure_occured[0] = True
                 raise
 
-        wrapped_test.description = test.__name__
-        yield wrapped_test
+        if test is not None:
+            wrapped_test.description = test.__name__
+            yield wrapped_test
 
 
 class LogCollectorPlugin(nose.plugins.Plugin):
diff --git a/ovirtlago/virt.py b/ovirtlago/virt.py
index ca992c61..b65e5a33 100644
--- a/ovirtlago/virt.py
+++ b/ovirtlago/virt.py
@@ -25,6 +25,11 @@
 import lago.vm
 import ovirtsdk.api
 from ovirtsdk.infrastructure.errors import (RequestError, ConnectionError)
+try:
+    import ovirtsdk4 as sdk4
+    API_V4 = True
+except ImportError:
+    API_V4 = False
 
 from . import (constants, testlib, )
 
@@ -118,34 +123,51 @@ def wait_for_ssh(self):
 class EngineVM(lago.vm.DefaultVM):
     def __init__(self, *args, **kwargs):
         super(EngineVM, self).__init__(*args, **kwargs)
-        self._api = None
+        self._api_v3 = None
+        self._api_v4 = None
 
     def stop(self):
         super(EngineVM, self).stop()
-        self._api = None
+        self._api_v3 = None
 
     def _artifact_paths(self):
         inherited_artifacts = super(EngineVM, self)._artifact_paths()
         return set(inherited_artifacts + ['/var/log/ovirt-engine', ])
 
-    def _create_api(self):
+    def _create_api(self, api_ver):
         url = 'https://%s/ovirt-engine/api' % self.ip()
-        return ovirtsdk.api.API(
-            url=url,
-            username=constants.ENGINE_USER,
-            password=str(self.metadata['ovirt-engine-password']),
-            validate_cert_chain=False,
-            insecure=True,
-        )
+        if api_ver == 3:
+            return ovirtsdk.api.API(
+                url=url,
+                username=constants.ENGINE_USER,
+                password=str(self.metadata['ovirt-engine-password']),
+                validate_cert_chain=False,
+                insecure=True,
+            )
+        if api_ver == 4:
+            if not API_V4:
+                raise RuntimeError('oVirt Python SDK v4 not found.')
+            return sdk4.Connection(
+                url=url,
+                username=constants.ENGINE_USER,
+                password=str(self.metadata['ovirt-engine-password']),
+                insecure=True,
+                debug=True,
+            )
+        raise RuntimeError('Unknown API requested: %s' % api_ver)
 
-    def _get_api(self):
+    def _get_api(self, api_ver):
         try:
-            api = []
+            api_v3 = []
+            api_v4 = []
 
             def get():
-                instance = self._create_api()
+                instance = self._create_api(api_ver)
                 if instance:
-                    api.append(instance)
+                    if api_ver == 3:
+                        api_v3.append(instance)
+                    else:
+                        api_v4.append(instance)
                     return True
                 return False
 
@@ -156,12 +178,26 @@ def get():
         except AssertionError:
             raise RuntimeError('Failed to connect to the engine')
 
-        return api.pop()
-
-    def get_api(self):
-        if self._api is None or not self._api.test():
-            self._api = self._get_api()
-        return self._api
+        if api_ver == 3:
+            return api_v3.pop()
+        else:
+            return api_v4.pop()
+
+    def get_api(self, api_ver=3):
+        if api_ver == 3:
+            return self.get_api_v3()
+        if api_ver == 4:
+            return self.get_api_v4()
+
+    def get_api_v3(self):
+        if self._api_v3 is None or not self._api_v3.test():
+            self._api_v3 = self._get_api(api_ver=3)
+        return self._api_v3
+
+    def get_api_v4(self):
+        if self._api_v4 is None or not self._api_v4.test():
+            self._api_v4 = self._get_api(api_ver=4)
+        return self._api_v4
 
     def add_iso(self, path):
         iso_name = os.path.basename(path)