Update changelog for 0.4.0

[osm/N2VC.git] / tests / base.py

diff --git a/tests/base.py b/tests/base.py
index 35003cb..8ea5109 100644 (file)
--- a/tests/base.py
+++ b/tests/base.py
@@ -1,7 +1,12 @@
+import mock
 import subprocess
+import uuid
 
 import pytest
 
+from juju.controller import Controller
+from juju.client.connection import JujuData
+
 
 def is_bootstrapped():
     result = subprocess.run(['juju', 'switch'], stdout=subprocess.PIPE)
@@ -12,3 +17,48 @@ def is_bootstrapped():
 bootstrapped = pytest.mark.skipif(
     not is_bootstrapped(),
     reason='bootstrapped Juju environment required')
+
+
+class CleanController():
+    def __init__(self):
+        self.controller = None
+
+    async def __aenter__(self):
+        self.controller = Controller()
+        await self.controller.connect_current()
+        return self.controller
+
+    async def __aexit__(self, exc_type, exc, tb):
+        await self.controller.disconnect()
+
+
+class CleanModel():
+    def __init__(self):
+        self.controller = None
+        self.model = None
+
+    async def __aenter__(self):
+        self.controller = Controller()
+        await self.controller.connect_current()
+
+        model_name = 'model-{}'.format(uuid.uuid4())
+        self.model = await self.controller.add_model(model_name)
+
+        # Ensure that we connect to the new model by default.  This also
+        # prevents failures if test was started with no current model.
+        self._patch_cm = mock.patch.object(JujuData, 'current_model',
+                                           return_value=model_name)
+        self._patch_cm.start()
+
+        return self.model
+
+    async def __aexit__(self, exc_type, exc, tb):
+        self._patch_cm.stop()
+        await self.model.disconnect()
+        await self.controller.destroy_model(self.model.info.uuid)
+        await self.controller.disconnect()
+
+
+class AsyncMock(mock.MagicMock):
+    async def __call__(self, *args, **kwargs):
+        return super().__call__(*args, **kwargs)