Place regression tests beside related syntax cases

Author: LucaCappelletti94

tests/sqlparser_common.rs

@@ -3906,6 +3906,28 @@ fn parse_agg_with_order_by() {
     }
 }
 
+#[test]
+fn parse_aggregate_order_by_with_empty_args() {
+    let dialects = all_dialects_where(|d| d.supports_aggregate_order_by_with_empty_args());
+    dialects.verified_stmt("SELECT count(ORDER BY a) FROM t");
+    dialects.verified_stmt("SELECT count(ORDER BY a ASC, b DESC) FROM t");
+    dialects.verified_stmt("SELECT count(ALL ORDER BY a) FROM t");
+    assert_eq!(
+        dialects.parse_sql_statements("SELECT count(DISTINCT ORDER BY a) FROM t"),
+        Err(ParserError::ParserError(
+            "Expected: ), found: BY".to_string()
+        ))
+    );
+
+    assert_eq!(
+        all_dialects_where(|d| !d.supports_aggregate_order_by_with_empty_args())
+            .parse_sql_statements("SELECT count(ORDER BY a) FROM t"),
+        Err(ParserError::ParserError(
+            "Expected: ), found: BY".to_string()
+        ))
+    );
+}
+
 #[test]
 fn parse_window_rank_function() {
     let supported_dialects = TestedDialects::new(vec![
@@ -21254,25 +21276,3 @@ fn parse_qualified_literal_prefix_requires_adjacent_period() {
         dialects.tokenizes_to(sql, vec![token]);
     }
 }
-
-#[test]
-fn parse_aggregate_order_by_with_empty_args() {
-    let dialects = all_dialects_where(|d| d.supports_aggregate_order_by_with_empty_args());
-    dialects.verified_stmt("SELECT count(ORDER BY a) FROM t");
-    dialects.verified_stmt("SELECT count(ORDER BY a ASC, b DESC) FROM t");
-    dialects.verified_stmt("SELECT count(ALL ORDER BY a) FROM t");
-    assert_eq!(
-        dialects.parse_sql_statements("SELECT count(DISTINCT ORDER BY a) FROM t"),
-        Err(ParserError::ParserError(
-            "Expected: ), found: BY".to_string()
-        ))
-    );
-
-    assert_eq!(
-        all_dialects_where(|d| !d.supports_aggregate_order_by_with_empty_args())
-            .parse_sql_statements("SELECT count(ORDER BY a) FROM t"),
-        Err(ParserError::ParserError(
-            "Expected: ), found: BY".to_string()
-        ))
-    );
-}