cs_instance = (CheckService) getContext().getService(cs_instance_ref);
assertTrue("Check service invocation", cs_instance.check());
assertFalse("Check Nullable - 3", ((Boolean) cs_instance.getProps().get("Nullable")).booleanValue());
assertTrue("Check service Binding - 3", ((Integer) cs_instance.getProps().get("Bind")).equals(new Integer(1)));
// change the value of the property toto
cs.check();
id = ((Architecture) getContext().getService(arch_ref)).getInstanceDescription();
assertTrue("Check instance validity - 3", id.getState() == ComponentInstance.VALID);
assertTrue("Check service Binding - 4", ((Integer) cs_instance.getProps().get("Bind")).equals(new Integer(0)));
assertTrue("Check Nullable - 4", ((Boolean) cs_instance.getProps().get("Nullable")).booleanValue());