/*
    * Licensed to the Apache Software Foundation (ASF) under one or more
    * contributor license agreements.  See the NOTICE file distributed with
    * this work for additional information regarding copyright ownership.
    * The ASF licenses this file to You under the Apache License, Version 2.0
    * (the "License"); you may not use this file except in compliance with
    * the License.  You may obtain a copy of the License at
    *
    *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package org.apache.commons.dbutils.handlers;
  
  import java.sql.SQLException;
  
  import org.apache.commons.dbutils.BaseTestCase;
  import org.apache.commons.dbutils.ResultSetHandler;
  
  public class ScalarHandlerTest extends BaseTestCase {
  
      public void testColumnIndexHandle() throws SQLException {
          final ResultSetHandler<String> h = new ScalarHandler<>(2);
          final Object results = h.handle(this.rs);
          assertNotNull(results);
          assertEquals("2", results);
      }
  
      public void testColumnNameHandle() throws SQLException {
          final ResultSetHandler<Integer> h = new ScalarHandler<>("intTest");
          final Object results = h.handle(this.rs);
          assertNotNull(results);
          assertEquals(Integer.valueOf(1), results);
      }
  
      public void testEmptyResultSetHandle() throws SQLException {
          final ResultSetHandler<String> h = new ScalarHandler<>();
          final Object results = h.handle(this.emptyResultSet);
          assertNull(results);
      }
  
      public void testHandle() throws SQLException {
          final ResultSetHandler<String> h = new ScalarHandler<>();
          final Object results = h.handle(this.rs);
          assertNotNull(results);
          assertEquals("1", results);
      }
  
  }