package com.atlassian.johnson;
   
   import com.atlassian.johnson.event.Event;
   import com.atlassian.johnson.event.EventType;
   import org.junit.Test;
   
   import java.util.Collection;
   
   import static org.junit.Assert.*;
  
  public class DefaultJohnsonEventContainerTest
  {
      @Test
      public void testContainer()
      {
          // no events at the start!
          DefaultJohnsonEventContainer container = new DefaultJohnsonEventContainer();
          assertFalse(container.hasEvents());
  
          // add an event and check it exists
          Event event = new Event(new EventType("systemic", "Systemic Anomaly"), "There is an anomaly in the matrix");
          container.addEvent(event);
          assertTrue(container.hasEvents());
          Collection<Event> containerEvents = container.getEvents();
          assertEquals(1, containerEvents.size());
          assertTrue(containerEvents.contains(event));
  
          // now remove the event and check it's gone
          container.removeEvent(event);
          assertFalse(container.hasEvents());
          assertEquals(0, container.getEvents().size());
      }
  }