@Test
public void testTimestamp() {

  when(servletContext.getClassLoader()).thenReturn(this.getClass().getClassLoader());
  SessionConfiguration sessionConfiguration = new SessionConfiguration();
  sessionConfiguration.setSessionTracking("URL");
  sessionConfiguration.setTimestampSufix(true);
  SessionTracking tracking = SessionHelpers.getTracking(servletContext, sessionConfiguration);
  assertTrue(tracking.newId().indexOf("!") > 0);
  sessionConfiguration.setTimestampSufix(false);
  tracking = SessionHelpers.getTracking(servletContext, sessionConfiguration);
  assertTrue(tracking.newId().indexOf("!") < 0);
}