CharmHub and new kafka and zookeeper charms

[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
index dbc7be3..d577e9f 100644 (file)
--- a/installers/charm/pla/tests/test_charm.py
+++ b/installers/charm/pla/tests/test_charm.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright 2020 Canonical Ltd.
+# Copyright 2021 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
@@ -20,27 +20,103 @@
 # osm-charmers@lists.launchpad.net
 ##
 
+import sys
 from typing import NoReturn
 import unittest
 
-from ops.testing import Harness
 
-from charm import PLACharm
+from charm import PlaCharm
+from ops.model import ActiveStatus, BlockedStatus
+from ops.testing import Harness
 
 
 class TestCharm(unittest.TestCase):
-    """PLA Charm unit tests."""
+    """Pla Charm unit tests."""
 
     def setUp(self) -> NoReturn:
         """Test setup"""
-        self.harness = Harness(PLACharm)
+        self.image_info = sys.modules["oci_image"].OCIImageResource().fetch()
+        self.harness = Harness(PlaCharm)
         self.harness.set_leader(is_leader=True)
         self.harness.begin()
+        self.config = {
+            "log_level": "INFO",
+            "mongodb_uri": "",
+        }
+        self.harness.update_config(self.config)
+
+    def test_config_changed_no_relations(
+        self,
+    ) -> NoReturn:
+        """Test ingress resources without HTTP."""
 
-    def test_on_start_without_relations(self) -> NoReturn:
-        """Test installation without any relation."""
         self.harness.charm.on.config_changed.emit()
 
+        # Assertions
+        self.assertIsInstance(self.harness.charm.unit.status, BlockedStatus)
+        self.assertTrue(
+            all(
+                relation in self.harness.charm.unit.status.message
+                for relation in ["mongodb", "kafka"]
+            )
+        )
+
+    def test_config_changed_non_leader(
+        self,
+    ) -> NoReturn:
+        """Test ingress resources without HTTP."""
+        self.harness.set_leader(is_leader=False)
+        self.harness.charm.on.config_changed.emit()
+
+        # Assertions
+        self.assertIsInstance(self.harness.charm.unit.status, ActiveStatus)
+
+    def test_with_relations_and_mongodb_config(
+        self,
+    ) -> NoReturn:
+        "Test with relations and mongodb config (internal)"
+        self.initialize_kafka_relation()
+        self.initialize_mongo_config()
+        # Verifying status
+        self.assertNotIsInstance(self.harness.charm.unit.status, BlockedStatus)
+
+    def test_with_relations(
+        self,
+    ) -> NoReturn:
+        "Test with relations (internal)"
+        self.initialize_kafka_relation()
+        self.initialize_mongo_relation()
+        # Verifying status
+        self.assertNotIsInstance(self.harness.charm.unit.status, BlockedStatus)
+
+    def test_exception_mongodb_relation_and_config(
+        self,
+    ) -> NoReturn:
+        "Test with relation and config for Mongodb. Test must fail"
+        self.initialize_mongo_relation()
+        self.initialize_mongo_config()
+        # Verifying status
+        self.assertIsInstance(self.harness.charm.unit.status, BlockedStatus)
+
+    def initialize_kafka_relation(self):
+        kafka_relation_id = self.harness.add_relation("kafka", "kafka")
+        self.harness.add_relation_unit(kafka_relation_id, "kafka/0")
+        self.harness.update_relation_data(
+            kafka_relation_id, "kafka", {"host": "kafka", "port": 9092}
+        )
+
+    def initialize_mongo_config(self):
+        self.harness.update_config({"mongodb_uri": "mongodb://mongo:27017"})
+
+    def initialize_mongo_relation(self):
+        mongodb_relation_id = self.harness.add_relation("mongodb", "mongodb")
+        self.harness.add_relation_unit(mongodb_relation_id, "mongodb/0")
+        self.harness.update_relation_data(
+            mongodb_relation_id,
+            "mongodb/0",
+            {"connection_string": "mongodb://mongo:27017"},
+        )
+
 
 if __name__ == "__main__":
     unittest.main()