// Copyright 2006 The Apache Software Foundation

 //

 // Licensed 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.tapestry5.internal.test;

 import static org.easymock.EasyMock.reportMatcher;

 import org.easymock.IArgumentMatcher;

 /**

  * Special version of string equality used to compare two snippets of code. This is somewhat simpleminded (it certainly

  * doesn't understand about literal strings in quotes). It works by eliminating unecessary whitespace around curly

  * braces, then reducing all whitespace to a single space.

  */

 public class CodeEq implements IArgumentMatcher

 {

     private final String code;

     public CodeEq(String input)

     {

         code = strip(input);

     }

     public boolean matches(Object argument)

     {

         String string = (String) argument;

         String stripped = strip(string);

         return code.equals(stripped);

     }

     public void appendTo(StringBuffer buffer)

     {

         buffer.append("codeEq(");

         buffer.append(code);

         buffer.append(")");

     }

     public static String codeEq(String input)

     {

         reportMatcher(new CodeEq(input));

         return null;

     }

     static String strip(String input)

     {

         return input.trim().replaceAll("\\s*\\{\\s*", "{").replaceAll("\\s*\\}\\s*", "}")

                 .replaceAll("\\s+", " ");

     }

 }