Add tox tests for osm charms in devops

[osm/devops.git] / installers / charm / pla / tests / test_charm.py

diff --git a/installers/charm/pla/tests/test_charm.py b/installers/charm/pla/tests/test_charm.py
new file mode 100644 (file)
index 0000000..dbc7be3
--- /dev/null
+++ b/installers/charm/pla/tests/test_charm.py
@@ -0,0 +1,46 @@
+#!/usr/bin/env python3
+# Copyright 2020 Canonical Ltd.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+#
+# For those usages not covered by the Apache License, Version 2.0 please
+# contact: legal@canonical.com
+#
+# To get in touch with the maintainers, please contact:
+# osm-charmers@lists.launchpad.net
+##
+
+from typing import NoReturn
+import unittest
+
+from ops.testing import Harness
+
+from charm import PLACharm
+
+
+class TestCharm(unittest.TestCase):
+    """PLA Charm unit tests."""
+
+    def setUp(self) -> NoReturn:
+        """Test setup"""
+        self.harness = Harness(PLACharm)
+        self.harness.set_leader(is_leader=True)
+        self.harness.begin()
+
+    def test_on_start_without_relations(self) -> NoReturn:
+        """Test installation without any relation."""
+        self.harness.charm.on.config_changed.emit()
+
+
+if __name__ == "__main__":
+    unittest.main()