/*
    * The Kuali Financial System, a comprehensive financial management system for higher education.
    * 
    * Copyright 2005-2014 The Kuali Foundation
    * 
    * This program is free software: you can redistribute it and/or modify
    * it under the terms of the GNU Affero General Public License as
    * published by the Free Software Foundation, either version 3 of the
    * License, or (at your option) any later version.
   * 
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU Affero General Public License for more details.
   * 
   * You should have received a copy of the GNU Affero General Public License
   * along with this program.  If not, see <http://www.gnu.org/licenses/>.
   */
  package org.kuali.kfs.sys.batch;
  
  import java.io.InputStream;
  import java.util.ArrayList;
  import java.util.List;
  
  import org.apache.commons.io.IOUtils;
  import org.kuali.kfs.fp.batch.ProcurementCardInputFileType;
  import org.kuali.kfs.fp.businessobject.ProcurementCardTransaction;
  import org.kuali.kfs.gl.batch.CollectorXmlInputFileType;
  import org.kuali.kfs.sys.ConfigureContext;
  import org.kuali.kfs.sys.batch.service.BatchInputFileService;
  import org.kuali.kfs.sys.businessobject.HeaderLine;
  import org.kuali.kfs.sys.context.KualiTestBase;
  import org.kuali.kfs.sys.context.SpringContext;
  import org.kuali.kfs.sys.exception.ParseException;
  
  /**
   * Tests the flatFileParser.
   * 
   * @see org.kuali.kfs.sys.batch.BatchInputFileType
   */
  @ConfigureContext
  public class FlatFileParserTest extends KualiTestBase {
      private static final String TEST_BATCH_XML_DIRECTORY = "org/kuali/kfs/sys/batch/fixture/";
      private BatchInputFileService batchInputFileService;
      private BatchInputFileType sampleBatchInputFileType;
      private byte[] sampleValidFileContents;
      private byte[] sampleInvalidPropertyFileContents;
      private byte[] sampleNoHeaderFileContents;
      
      /**
       * @see junit.framework.TestCase#setUp()
       */
      @Override
      protected void setUp() throws Exception {
          super.setUp();
          
          batchInputFileService = SpringContext.getBean(BatchInputFileService.class);
          sampleBatchInputFileType = SpringContext.getBean(BatchInputFileType.class,"sampleTestFlatFileInputFileType");
          
  
          InputStream validFileStream = FlatFileParserTest.class.getClassLoader().getResourceAsStream(TEST_BATCH_XML_DIRECTORY + "SampleValidFlatFile.txt");
          sampleValidFileContents = IOUtils.toByteArray(validFileStream);
          
          InputStream sampleInvalidPropertyFileStream = FlatFileParserTest.class.getClassLoader().getResourceAsStream(TEST_BATCH_XML_DIRECTORY + "SampleInValidPropertyFlatFile.txt");
          sampleInvalidPropertyFileContents = IOUtils.toByteArray(sampleInvalidPropertyFileStream);
          
          InputStream sampleNoHeaderFileStream = FlatFileParserTest.class.getClassLoader().getResourceAsStream(TEST_BATCH_XML_DIRECTORY + "SampleNoHeaderFlatFile.txt");
          sampleNoHeaderFileContents = IOUtils.toByteArray(sampleNoHeaderFileStream);
          
      }
      
      
      /**
       * Verifies the correct object graph is being built from the sample valid file contents 
       * 
       */
      public final void testParseSampleValidContents() throws Exception {
          Object parsedObject = batchInputFileService.parse(sampleBatchInputFileType, sampleValidFileContents);
  
          assertNotNull("parsed object was null", parsedObject);
          assertEquals("incorrect object type constructured from parse", java.util.ArrayList.class, parsedObject.getClass());
  
          List parsedList = (ArrayList) parsedObject;
          assertEquals("parsed object size was incorrect", 1, parsedList.size());
  
          for (int i = 0; i < parsedList.size(); i++) {
              Object parsedElement = parsedList.get(i);
              assertEquals("list object type was incorrect on index " + i, HeaderLine.class, parsedElement.getClass());
          }
      }
      
      /**
       * Verifies exception is thrown on parse method if invalid property found in the file contents .
       */
      public final void testParseInvalidPropertyFileContents() throws Exception {
      
          boolean failedAsExpected = false;
          String errorMessage = "";
          try {
             Object parsedObject =  batchInputFileService.parse(sampleBatchInputFileType, sampleInvalidPropertyFileContents);
         }
         catch (ParseException e) {
             errorMessage = e.getStackTrace().toString();
             failedAsExpected = true;
         }
         assertTrue("exception thrown for invalid property " , failedAsExpected);
        
     }
     
     /**
      * Verifies exception is thrown on parse method if invalid property found in the file contents .
      */
     public final void testNoHeaderFileContents() throws Exception {
     
         boolean failedAsExpected = false;
         try {
             batchInputFileService.parse(sampleBatchInputFileType, sampleNoHeaderFileContents);
         }
         catch (ParseException e) {
             failedAsExpected = true;
         }
         assertTrue("exception thrown for the file with no header " , failedAsExpected);
        
     }
     
     
 }