Update test

src/relations/db.py

@@ -305,13 +305,6 @@ def _on_relation_changed(self, change_event: RelationChangedEvent):
             change_event.defer()
             return
 
-        dbs = self.charm.get_relation_databases()
-        if str(change_event.relation.id) not in dbs:
-            pass
-            logger.debug("relation not fully initialised - database mapping not yet set")
-            change_event.defer()
-            return
-
         self.charm.render_pgb_config(reload_pgbouncer=True)
         self.update_databags(
             change_event.relation,

tests/integration/relations/test_db_admin.py

@@ -12,6 +12,7 @@
     PG,
     PGB,
     deploy_postgres_bundle,
+    get_backend_user_pass,
 )
 from ..helpers.postgresql_helpers import (
     check_database_users_existence,
@@ -32,12 +33,13 @@
 @pytest.mark.group(1)
 async def test_landscape_scalable_bundle_db(ops_test: OpsTest, pgb_charm_jammy: str) -> None:
     """Deploy Landscape Scalable Bundle to test the 'db-admin' relation."""
-    await deploy_postgres_bundle(
+    backend_relation = await deploy_postgres_bundle(
         ops_test,
         pgb_charm_jammy,
         db_units=DATABASE_UNITS,
         pgb_series="jammy",
         pg_config={"profile": "testing", "plugin_plpython3u_enable": "True"},
+        pgb_config={"max_db_connections": "500"},
     )
 
     # Deploy and test the Landscape Scalable bundle (using this PostgreSQL charm).
@@ -49,6 +51,7 @@ async def test_landscape_scalable_bundle_db(ops_test: OpsTest, pgb_charm_jammy:
         relation_name=RELATION_NAME,
         timeout=3000,
     )
+    pgb_user, pgb_pass = await get_backend_user_pass(ops_test, backend_relation)
     await check_databases_creation(
         ops_test,
         [
@@ -59,12 +62,10 @@ async def test_landscape_scalable_bundle_db(ops_test: OpsTest, pgb_charm_jammy:
             "landscape-standalone-resource-1",
             "landscape-standalone-session",
         ],
+        pgb_user,
+        pgb_pass,
     )
 
-    landscape_users = [f"relation-{relation_id}"]
-
-    await check_database_users_existence(ops_test, landscape_users, [])
-
     # Create the admin user on Landscape through configs.
     await ops_test.model.applications["landscape-server"].set_config({
         "admin_email": "[email protected]",