Merge commit '19031b24b523c872c1ac367821dc60c950a09755' as 'modules/libjuju'

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

diff --git a/modules/libjuju/tests/base.py b/modules/libjuju/tests/base.py
new file mode 100644 (file)
index 0000000..e1ec452
--- /dev/null
+++ b/modules/libjuju/tests/base.py
@@ -0,0 +1,67 @@
+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)
+    return (
+        result.returncode == 0 and
+        len(result.stdout.decode().strip()) > 0)
+
+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)
+
+        # save the model UUID in case test closes model
+        self.model_uuid = self.model.info.uuid
+
+        # 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_uuid)
+        await self.controller.disconnect()
+
+
+class AsyncMock(mock.MagicMock):
+    async def __call__(self, *args, **kwargs):
+        return super().__call__(*args, **kwargs)