package com.atlassian.logging.log4j;
   
   import org.apache.log4j.Level;
   import org.apache.log4j.Logger;
   import org.apache.log4j.spi.LoggingEvent;
   import org.junit.Before;
   import org.junit.Test;
   
   import static org.hamcrest.CoreMatchers.equalTo;
  import static org.junit.Assert.assertThat;
  
  /**
   *
   */
  public class FilteredPatternLayoutTest
  {
      private static final Logger log = Logger.getLogger(FilteredPatternLayoutTest.class);
      private FilteredPatternLayout filteredPatternLayout;
  
      @Before
      public void setUp() throws Exception
      {
          filteredPatternLayout = new FilteredPatternLayout();
          filteredPatternLayout.activateOptions();
      }
  
  
      @Test
      public void test_that_collapsing_occurs() throws Exception
      {
          // assemble
          LoggingEvent loggingEvent = new LoggingEvent("x", log, Level.INFO, "Some message to be logged", null);
  
          filteredPatternLayout.setConversionPattern("%Q{3} %m%n");
  
          //act
          String actual = filteredPatternLayout.format(loggingEvent);
  
          // assert
          assertThat(actual, equalTo("c.a.l.l.FilteredPatternLayoutTest Some message to be logged\n"));
      }
  
      /**
       * Its not useful to have stack traces that are shortened because tools such as IDEA can interpret them magically
       */
      @Test
      public void test_that_collapsing_never_occurs_in_stacktraces() throws Exception
      {
          RuntimeException rte = new RuntimeException("RTE");
          // assemble
          LoggingEvent loggingEvent = new LoggingEvent("x", log, Level.INFO, "Some message to be logged", rte);
  
          filteredPatternLayout.setConversionPattern("%q{2} %m%n");
  
          String expected = "c.a.logging.log4j.FilteredPatternLayoutTest Some message to be logged\n"
                  + "java.lang.RuntimeException: RTE\n"
                  + "\tat com.atlassian.logging.log4j.FilteredPatternLayoutTest.";
  
  
          //act
          String actual = filteredPatternLayout.format(loggingEvent);
  
          // assert
          assertThat(actual.startsWith(expected), equalTo(true));
      }
  }