🚧 WIP

backend/tests/test_configgen.py

@@ -84,6 +84,20 @@ def test_published_port_listener_does_not_warn(session):
     assert not any("not published to the host" in w for w in result.warnings)
 
 
+def test_internal_settings_never_leak_into_config(session):
+    """Platform-internal BrokerSettings keys (restart_required) are state,
+    not broker options: emitting them fails `--test-config` with 'Unknown
+    configuration variable' (found live in the restart E2E)."""
+    session.add(ListenerConfig(name="l", port=1883, protocol="mqtt"))
+    session.add(BrokerSettings(key="restart_required", value="true", value_type="bool"))
+    session.add(BrokerSettings(key="max_packet_size", value="2000000", value_type="int"))
+    session.commit()
+
+    result = generate_config(session)
+    assert "max_packet_size 2000000" in result.config_text
+    assert "restart_required" not in result.config_text
+
+
 def test_tls_listener_without_pki_warns(session):
     session.add(
         ListenerConfig(