[Test] Add settings id tests

test/functional/cases/108_settings.robot

@@ -63,6 +63,18 @@ ENABLE GROUP - NORMAL
   Should Not Contain  ${result.stdout}  SIMPLE_PRE
   Should Not Contain  ${result.stdout}  SIMPLE_POST
 
+SETTINGS ID - NORMAL
+  ${result} =  Scan Message With Rspamc  ${MESSAGE}  --header  Settings-Id=id_test
+  Check Rspamc  ${result}  SIMPLE_TEST
+  Should Not Contain  ${result.stdout}  SIMPLE_PRE
+  Should Not Contain  ${result.stdout}  SIMPLE_POST
+
+SETTINGS ID - PRE
+  ${result} =  Scan Message With Rspamc  ${MESSAGE}  --header  Settings-Id=id_pre
+  Check Rspamc  ${result}  SIMPLE_PRE
+  Should Not Contain  ${result.stdout}  SIMPLE_TEST
+  Should Not Contain  ${result.stdout}  SIMPLE_POST
+
 *** Keywords ***
 Settings Setup
   ${PLUGIN_CONFIG} =  Get File  ${TESTDIR}/configs/settings.conf

test/functional/configs/settings.conf

@@ -1,3 +1,16 @@
 lua = ${LUA_SCRIPT};
 
-settings { }
+settings {
+  id_test {
+    id = "id_test";
+    apply {
+      symbols_enabled = ["SIMPLE_TEST"];
+    }
+  }
+
+  id_pre { # implicit id
+    apply {
+      symbols_enabled = ["SIMPLE_PRE"];
+    }
+  }
+}