cvs commit: xml-xerces/java/tests/dom/DOMMemTest Assertion.java

[le...@locus.apache.org]

lehors      00/01/19 16:27:57

  Added:       java/tests/dom/DOMMemTest Assertion.java
  Log:
  quick hack (but nice ;-) to have basic assertion support
  
  Revision  Changes    Path
  1.1                  xml-xerces/java/tests/dom/DOMMemTest/Assertion.java
  
  Index: Assertion.java
  ===================================================================
  /* $Id: Assertion.java,v 1.1 2000/01/20 00:27:57 lehors Exp $ */
  /*
   * The Apache Software License, Version 1.1
   * 
   * Copyright (c) 1999 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
   * are met:
   * 
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer. 
   * 
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in
   *    the documentation and/or other materials provided with the
   *    distribution.
   * 
   * 3. The end-user documentation included with the redistribution,
   *    if any, must include the following acknowledgment:  
   *       "This product includes software developed by the
   *        Apache Software Foundation (http://www.apache.org/)."
   *    Alternately, this acknowledgment may appear in the software itself,
   *    if and wherever such third-party acknowledgments normally appear.
   * 
   * 4. The names "Xerces" and "Apache Software Foundation" must
   *    not be used to endorse or promote products derived from this
   *    software without prior written permission. For written 
   *    permission, please contact apache\@apache.org.
   * 
   * 5. Products derived from this software may not be called "Apache",
   *    nor may "Apache" appear in their name, without prior written
   *    permission of the Apache Software Foundation.
   * 
   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
   * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
   * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
   * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   * ====================================================================
   * 
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation, and was
   * originally based on software copyright (c) 1999, International
   * Business Machines, Inc., http://www.ibm.com .  For more information
   * on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   */
  
  /**
   * A simple Assertion class (a hack really ;-) to report the source line number
   * where an assertion fails.
   */
  
  
  package dom.DOMMemTest;
  
  import java.io.StringWriter;
  import java.io.PrintWriter;
  
  public class Assertion {
  
      public void assert(boolean result) {
  	if (!result) {
  	    RuntimeException ex = new RuntimeException("assertion failed");
  	    StringWriter writer = new StringWriter();
  	    PrintWriter printer = new PrintWriter(writer);
  	    ex.printStackTrace(printer);
  	    String buf = writer.toString();
  	    // extract the last line
  	    int index = buf.lastIndexOf('\n');
  	    index = buf.lastIndexOf('\n', index - 1);
  	    System.err.println("Assertion failed "
  			       + buf.substring(index + 1).trim());
  	}
      }
  
      public void equals(String s1, String s2) {
          boolean result = ((s1 != null && s1.equals(s2))
  			  || (s1 == null && s2 == null));
  	if (!result) {
  	    assert(result);
  	    System.err.println("  was: equals(" + s1 + ", \"" + s2 + "\")");
  	}
      }
  
      public Assertion() {
      }
  }