assertFalse("expected group 1 to be inactive", group1.isActivated());
assertFalse("expected group 2 to be inactive", group2.isActivated());
assertFalse("expected group 3 to be inactive", group3.isActivated());
group1.activate();
assertTrue("expected group 1 to be active", group1.isActivated());
assertFalse("expected group 2 to be inactive", group2.isActivated());
assertFalse("expected group 3 to be inactive", group3.isActivated());
Thread.sleep(500);