package com.atlassian.plugin.webresource.transformer;
   
   import com.google.common.base.Function;
   
   import java.util.regex.Matcher;
   import java.util.regex.Pattern;
   
   import junit.framework.TestCase;
   
  public class TestSearchAndReplacer extends TestCase
  {
      public void testSimple()
      {
          final String input = "1 two 3 four 5";
  
          final Function<Matcher, CharSequence> function = new Function<Matcher, CharSequence>()
          {
              public CharSequence apply(final Matcher m)
              {
                  return new StringBuilder("$").append(m.group().toUpperCase()).append("\\");
              }
          };
          final SearchAndReplacer grep = new SearchAndReplacer(Pattern.compile("[a-zA-Z]+"), function);
          final String output = grep.replaceAll(input).toString();
  
          assertEquals("1 $TWO\\ 3 $FOUR\\ 5", output);
      }
  }