Add uncategorized functions to SQL query validator

Signed-off-by: Tomoyuki Morita <moritato@amazon.com>

Author: ykmr1224

async-query-core/src/test/java/org/opensearch/sql/spark/validator/SQLQueryValidatorTest.java

@@ -6,6 +6,7 @@
 package org.opensearch.sql.spark.validator;
 
 import static org.junit.jupiter.api.Assertions.assertDoesNotThrow;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertThrows;
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.Mockito.when;
@@ -192,15 +193,14 @@ private enum TestElement {
     // Generator Functions
     GENERATOR_FUNCTIONS("SELECT explode(array(1, 2, 3));"),
 
-    // UNCATEGORIZED functions
+    // Ucategorized functions
     NAMED_STRUCT("SELECT named_struct('a', 1);"),
-    PARSE_URL("SELECT parse_url(url) FROM my_table;");
+    PARSE_URL("SELECT parse_url(url) FROM my_table;"),
 
     // UDFs (User-Defined Functions)
     SCALAR_USER_DEFINED_FUNCTIONS("SELECT my_udf(name) FROM my_table;"),
     USER_DEFINED_AGGREGATE_FUNCTIONS("SELECT my_udaf(age) FROM my_table GROUP BY name;"),
-    INTEGRATION_WITH_HIVE_UDFS_UDAFS_UDTFS("SELECT my_hive_udf(name) FROM my_table;"),
-    ;
+    INTEGRATION_WITH_HIVE_UDFS_UDAFS_UDTFS("SELECT my_hive_udf(name) FROM my_table;");
 
     @Getter private final String[] queries;
 
@@ -328,14 +328,14 @@ void testDenyAllValidator() {
     // Generator Functions
     v.ng(TestElement.GENERATOR_FUNCTIONS);
 
+    // Uncategorized Functions
+    v.ng(TestElement.NAMED_STRUCT);
+    v.ng(TestElement.PARSE_URL);
+
     // UDFs
     v.ng(TestElement.SCALAR_USER_DEFINED_FUNCTIONS);
     v.ng(TestElement.USER_DEFINED_AGGREGATE_FUNCTIONS);
     v.ng(TestElement.INTEGRATION_WITH_HIVE_UDFS_UDAFS_UDTFS);
-
-    // UNSUPPORTED Functions
-    v.ng(TestElement.NAMED_STRUCT);
-    v.ng(TestElement.PARSE_URL);
   }
 
   @Test
@@ -450,8 +450,8 @@ void testS3glueQueries() {
     v.ok(TestElement.GENERATOR_FUNCTIONS);
 
     // Uncategorized Functions
-    v.ng(TestElement.NAMED_STRUCT);
-    v.ng(TestElement.PARSE_URL);
+    v.ok(TestElement.NAMED_STRUCT);
+    v.ok(TestElement.PARSE_URL);
 
     // UDFs
     v.ng(TestElement.SCALAR_USER_DEFINED_FUNCTIONS);
@@ -636,11 +636,10 @@ void testUnsupportedHiveNativeCommand() {
 
   @Test
   void testException() {
-    when(mockedProvider.getValidatorForDatasource(any()))
-        .thenReturn(new S3GlueSQLGrammarElementValidator());
+    when(mockedProvider.getValidatorForDatasource(any())).thenReturn(element -> false);
     VerifyValidator v = new VerifyValidator(sqlQueryValidator, DataSourceType.S3GLUE);
 
-    v.ng("SELECT named_struct('a', 1);", "Uncategorized function (named_struct) is not supported.");
+    v.ng("SELECT named_struct('a', 1);", "Uncategorized functions (named_struct) is not allowed.");
   }
 
   @AllArgsConstructor
@@ -668,10 +667,11 @@ public void ng(String query) {
     }
 
     public void ng(String query, String expectedMessage) {
-      Exception e = assertThrows(
-          IllegalArgumentException.class,
-          () -> runValidate(query),
-          "The query should throw: query=`" + query.toString() + "`");
+      Exception e =
+          assertThrows(
+              IllegalArgumentException.class,
+              () -> runValidate(query),
+              "The query should throw: query=`" + query.toString() + "`");
       assertEquals(expectedMessage, e.getMessage());
     }