/*
    * $Id: NullStringCatenationTest.java 1180547 2011-10-09 05:44:18Z grobmeier $
    * 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.ognl.test;
  
  import java.util.ArrayList;
  import java.util.Collection;
  
  import org.apache.commons.ognl.test.objects.Root;
  import org.junit.Test;
  import org.junit.runner.RunWith;
  import org.junit.runners.Parameterized;
  import org.junit.runners.Parameterized.Parameters;
  
  @RunWith(value = Parameterized.class)
  public class NullStringCatenationTest
      extends OgnlTestCase
  {
  
      public static final String MESSAGE = "blarney";
  
      private static Root ROOT = new Root();
  
      private static Object[][] TESTS =
      {
          // Null string catenation
          { ROOT, "\"bar\" + null", "barnull" }, // Catenate null to a string
          { ROOT, "\"bar\" + nullObject", "barnull" }, // Catenate null to a string
          { ROOT, "20.56 + nullObject", NullPointerException.class }, // Catenate null to a number
          { ROOT, "(true ? 'tabHeader' : '') + (false ? 'tabHeader' : '')", "tabHeader" },
          { ROOT, "theInt == 0 ? '5%' : theInt + '%'", "6%" },
          { ROOT, "'width:' + width + ';'", "width:238px;" },
          { ROOT, "theLong + '_' + index", "4_1" },
          { ROOT, "'javascript:' + @org.apache.commons.ognl.test.NullStringCatenationTest@MESSAGE", "javascript:blarney" },
          { ROOT,  "printDelivery ? '' : 'javascript:deliverySelected(' + property.carrier + ',' + currentDeliveryId + ')'", "" }, 
          { ROOT, "bean2.id + '_' + theInt", "1_6" } 
      };
  
      
      /**
       * Setup parameters for this test which are used to call this class constructor
       * @return the collection of paramaters 
       */
      @Parameters
      public static Collection<Object[]> data()
      {
          Collection<Object[]> data = new ArrayList<Object[]>(TESTS.length);
          for ( int i = 0; i < TESTS.length; i++ )
          {
              Object[] tmp = new Object[4];
              tmp[0] = TESTS[i][1];
              tmp[1] = TESTS[i][0];
              tmp[2] = TESTS[i][1];
              tmp[3] = TESTS[i][2];
  
              data.add( tmp );
          }
          return data;
      }
  
      /**
       * Constructor: size of the Object[] returned by the @Parameter annotated method must match
       * the number of arguments in this constructor  
       */
      public NullStringCatenationTest( String name, Object root, String expressionString, Object expectedResult)
      {
          super( name, root, expressionString, expectedResult );
      }
  
      @Test
      @Override
      public void runTest() throws Exception
      {
          super.runTest();
      }
  }