date validity checks
diff --git a/src/test/java/CollectionQueryTreeTest.java b/src/test/java/CollectionQueryTreeTest.java
index acf09d7..ee7b554 100644
--- a/src/test/java/CollectionQueryTreeTest.java
+++ b/src/test/java/CollectionQueryTreeTest.java
@@ -108,6 +108,7 @@
assertEquals("2014", res.at("/collection/operands/1/value").asText());
assertEquals(true, res.at("/collection/operands/1/type").isMissingNode());
assertEquals("match:eq", res.at("/collection/operands/1/match").asText());
+ assertEquals("", res.at("/warnings/0/"));
}
@Test