cvs commit: jakarta-commons/betwixt/src/test/org/apache/commons/betwixt/strategy TestObjectStringConverters.java

[rd...@apache.org]

rdonkin     2003/07/31 14:39:31

  Added:       betwixt/src/test/org/apache/commons/betwixt/strategy
                        TestObjectStringConverters.java
  Log:
  Test case for object <-> String strategies
  
  Revision  Changes    Path
  1.1                  jakarta-commons/betwixt/src/test/org/apache/commons/betwixt/strategy/TestObjectStringConverters.java
  
  Index: TestObjectStringConverters.java
  ===================================================================
  /*
   * $Header: /home/cvs/jakarta-commons/betwixt/src/test/org/apache/commons/betwixt/strategy/TestObjectStringConverters.java,v 1.1 2003/07/31 21:39:31 rdonkin Exp $
   * $Revision: 1.1 $
   * $Date: 2003/07/31 21:39:31 $
   *
   * ====================================================================
   *
   * The Apache Software License, Version 1.1
   *
   * Copyright (c) 1999-2002 The Apache Software Foundation.  All rights
   * reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
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   *
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   * 
   * $Id: TestObjectStringConverters.java,v 1.1 2003/07/31 21:39:31 rdonkin Exp $
   */
  package org.apache.commons.betwixt.strategy;
  
  import junit.framework.Test;
  import junit.framework.TestCase;
  import junit.framework.TestSuite;
  
  import org.apache.commons.beanutils.Converter;
  import org.apache.commons.beanutils.ConvertUtils;
  
  import org.apache.commons.betwixt.expression.Context;
  
  /**
   * Test harness for ObjectStringConverter implementations
   * 
   * @author <a href="mailto:rdonkin at apache.org">Robert Burrell Donkin</a>
   * @version $Id: TestObjectStringConverters.java,v 1.1 2003/07/31 21:39:31 rdonkin Exp $
   */
  public class TestObjectStringConverters extends TestCase
  {
  
      private Context dummyContext = new Context();
  
      public static Test suite() {
          return new TestSuite(TestObjectStringConverters.class);
      }
      
      public TestObjectStringConverters(String testName) {
          super(testName);
      }
      
      public void testBaseConverter() {
          Object test = new Object () {
              public String toString() {
                  return "funciporcini";
              }
          };
          
          ObjectStringConverter converter = new ObjectStringConverter();
          String stringFromObject = converter.objectToString( null, Object.class, "raspberry", dummyContext );
          assertEquals("Null should return empty string", "", stringFromObject);
          stringFromObject = converter.objectToString( test, Object.class, "raspberry", dummyContext );
          assertEquals("Object should return toString", "funciporcini", stringFromObject);       
          
          Object objectFromString = converter.stringToObject( "Mungo Jerry", Object.class, "strawberry", dummyContext );
          assertEquals("String should return itself", "Mungo Jerry", objectFromString);  
      }
      
      
      public void testConvertUtilsConverter() throws Exception {
          ObjectStringConverter converter = new ConvertUtilsObjectStringConverter();
          commonTestForConvertUtilsConverters( converter );
      }
      
      private void commonTestForConvertUtilsConverters(ObjectStringConverter objectStringConverter) {
          Converter converter = new Converter() {
              public Object convert(Class type, Object value) {
                  if ( type == SecurityManager.class) {
                      return "Life, The Universe And Everything";
                  }
                  return "The answer is " + value.toString();
              }
          };
          
          Long test = new Long(42);
          
          ConvertUtils.register( converter, Object.class );
          ConvertUtils.register( converter, String.class );
          ConvertUtils.register( converter, SecurityManager.class );
          
          String stringFromObject = objectStringConverter.objectToString( null, Object.class, "gooseberry", dummyContext );
          assertEquals("Null should return empty string", "", stringFromObject);
          stringFromObject = objectStringConverter.objectToString( test, Object.class, "logonberry", dummyContext );
          assertEquals("Normal object conversion (1)", "The answer is 42", stringFromObject); 
  
          
          Object objectFromString = objectStringConverter.stringToObject( 
                          "Forty Two", Object.class, "damsen", dummyContext );
          assertEquals("Normal object conversion (2)", "The answer is Forty Two", objectFromString); 
          objectFromString = objectStringConverter.stringToObject( 
                          "Trillian", SecurityManager.class, "cranberry", dummyContext );
          assertEquals("Special object conversion", "Life, The Universe And Everything", objectFromString); 
          
          ConvertUtils.deregister();
      }
      
      public void testDefaultOSConverter() {
          ObjectStringConverter converter = new DefaultObjectStringConverter();
          commonTestForConvertUtilsConverters( converter );
      }
      
      public void testDefaultOSConverterDates() {
          
      
          Converter converter = new Converter() {
              public Object convert(Class type, Object value) {
                  return "Arthur Dent";
              }
          };
          
          ConvertUtils.register( converter, java.sql.Date.class );
          
          converter = new Converter() {
              public Object convert(Class type, Object value) {
                  return "Ford Prefect";
              }
          };
          
          ConvertUtils.register( converter, String.class );
          
          converter = new Converter() {
              public Object convert(Class type, Object value) {
                  return "Marvin";
              }
          };
          
          ConvertUtils.register( converter, java.util.Date.class );
      
          java.util.Date utilNow = new java.util.Date();
          String nowAsString = utilNow.toString();
          java.sql.Date sqlNow = new java.sql.Date(System.currentTimeMillis());
          ObjectStringConverter objectStringConverter = new DefaultObjectStringConverter();
          
          String stringFromObject = objectStringConverter.objectToString( 
                                          utilNow, java.util.Date.class, "blackcurrent", dummyContext );
          assertEquals( "String output same as java.util.Date.toString() (1)", utilNow.toString(), stringFromObject );
  
          stringFromObject = objectStringConverter.objectToString( 
                                          sqlNow, java.util.Date.class, "redcurrent", dummyContext );      
          assertEquals( "String output same as java.util.Date.toString() (2)", utilNow.toString(), stringFromObject );
          
          stringFromObject = objectStringConverter.objectToString( 
                                          utilNow, java.sql.Date.class, "whitecurrent", dummyContext );      
          assertEquals( "Should use converter (2)", "Ford Prefect", stringFromObject ); 
          
          Object objectFromString = objectStringConverter.stringToObject( 
                                          nowAsString, java.sql.Date.class, "blackberry", dummyContext );      
          assertEquals( "Should use converter (3)", "Ford Prefect", stringFromObject ); 
          objectFromString = objectStringConverter.stringToObject( 
                                          nowAsString, java.util.Date.class, "tayberry", dummyContext );      
          assertTrue( "Date should be returned", objectFromString instanceof java.util.Date); 
          assertEquals( "Date returned should be the same", nowAsString,  objectFromString.toString()); 
          
          ConvertUtils.deregister();
      }
  }
  
  
  
  
  

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