ObjectUtilTest.java

/*
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 * Copyright 2006, The jCoderZ.org Project. All rights reserved.
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package org.jcoderz.commons.util;

import junit.framework.TestCase;

/**
 * JUnit test for {@link org.jcoderz.commons.util.ObjectUtil}.
 *
 * @author Michael Griffel
 */
public class ObjectUtilTest
      extends TestCase
{
   /**
    * Test the method {@link ObjectUtil#equals(Object, Object)}.
    */
   public void testEquals ()
   {
      final Object a = "Foo";
      final Object b = "Bar";
      assertTrue("Same instance should be equals", ObjectUtil.equals(a, a));
      assertFalse("Different instances should not be equal",
            ObjectUtil.equals(a, b));
      assertTrue("two null references should be equal",
            ObjectUtil.equals(null, null));
      assertFalse("Should not be equals, if one reference is null",
            ObjectUtil.equals(a, null));
      assertFalse("Should not be equals, if one reference is null",
            ObjectUtil.equals(null, a));
   }

   /** Tests the {@link ObjectUtil#toString(Object)} method. */
   public void testToString ()
   {
      assertNull("ObjectUtil.toString(null) should return null.",
            ObjectUtil.toString(null));
      assertEquals("ObjectUtil.toString(\"foo\") should return \"foo\".",
            "foo", ObjectUtil.toString("foo"));
   }

   /** Tests the {@link ObjectUtil#toStringOrEmpty(Object)} method. */
   public void testToStringOrEmpty ()
   {
      assertEquals("ObjectUtil.toStringOrEmpty(null) should return \"\".",
            "", ObjectUtil.toStringOrEmpty(null));
      assertEquals("ObjectUtil.toStringOrEmpty(\"foo\") should return \"foo\".",
            "foo", ObjectUtil.toStringOrEmpty("foo"));
   }
}