diff --git a/tests/Rules/Node/ValidConstantFunction/ValidConstantFunctionRuleTest.twig b/tests/Rules/Node/ValidConstantFunction/ValidConstantFunctionRuleTest.twig
index 2c2b5949..d8f394c9 100644
--- a/tests/Rules/Node/ValidConstantFunction/ValidConstantFunctionRuleTest.twig
+++ b/tests/Rules/Node/ValidConstantFunction/ValidConstantFunctionRuleTest.twig
@@ -7,4 +7,6 @@
     {{ constant('ThisDoesNotExist::SomeKey') }}
     {{ constant(someVar) }}
     {{ constant('ThisDoesNotExist::class') }}
+    {{ constant(1) }}
+    {{ notConstant('ThisDoesNotExist::class') }}
 {% endblock %}