package com.atlassian.johnson.event;
   
   import org.junit.Test;
   
   import java.io.PrintStream;
   
   import static org.junit.Assert.assertNotNull;
   import static org.mockito.Mockito.mock;
   import static org.mockito.Mockito.verifyZeroInteractions;
  
  public class EventTest {
  
      @Test
      public void testToStringDoesNotWriteToSystemOut() throws Exception {
          PrintStream realOut = System.out;
  
          PrintStream mockOut = mock(PrintStream.class);
          System.setOut(mockOut);
          try {
              Event event = new Event(new EventType("foo", "bar"), "fubar");
              assertNotNull(event.toString());
          } finally {
              try {
                  verifyZeroInteractions(mockOut);
              } finally {
                  System.setOut(realOut);
              }
          }
      }
  }