[CONJ-1128] test addition: Setting Negative Fetch Size on ResultSet r…

…esults throwing Error

src/test/java/org/mariadb/jdbc/integration/StatementTest.java

@@ -470,6 +470,25 @@ public void getGeneratedKeysType() throws SQLException {
     }
   }
 
+  @Test
+  public void testNegativeFetchSize() throws SQLException {
+    try (Statement stmt = sharedConn.createStatement()) {
+      stmt.execute("DROP TABLE IF EXISTS testNegativeFetchSize");
+      stmt.execute(
+          "CREATE TABLE testNegativeFetchSize(id INT PRIMARY KEY AUTO_INCREMENT,value FLOAT)");
+      stmt.addBatch("INSERT INTO testNegativeFetchSize (value)  VALUES(0.05)");
+      stmt.addBatch("DELETE FROM testNegativeFetchSize WHERE id <= 2");
+      stmt.addBatch("INSERT INTO testNegativeFetchSize (value) VALUES(0.03)");
+      stmt.executeBatch();
+      try (ResultSet rs = stmt.getGeneratedKeys()) {
+        assertThrowsContains(
+            SQLSyntaxErrorException.class,
+            () -> rs.setFetchSize(-2),
+            "invalid fetch size -2");
+      }
+    }
+  }
+
   @Test
   public void largeMaxRows() throws SQLException {
     Statement stmt = sharedConn.createStatement();