adding tests

Author: RS2007

testing/values.test

@@ -60,4 +60,13 @@ do_execsql_test_on_specific_db {:memory:} values-between {
 do_execsql_test_in_memory_any_error values-illegal-column-ref {
   CREATE TABLE t0 (c0);
   INSERT INTO t0 VALUES (c0);
-}
+}
+
+# Unquoted identifiers in VALUES should produce a parse error
+do_execsql_test_in_memory_error_content values-unquoted-identifier-single {
+  values(asdf);
+} {Parse error: Unquoted identifier in VALUES clause: asdf}
+
+do_execsql_test_in_memory_error_content values-unquoted-identifier-mixed {
+  values(1, asdf);
+} {Parse error: Unquoted identifier in VALUES clause: asdf}