assertEquals(1, payload.getInvocationPropertyNames().size());
assertEquals(2, payload.getOutboundPropertyNames().size());
assertEquals(0, payload.getInboundPropertyNames().size());
payload.clearProperties(PropertyScope.INVOCATION);
assertEquals(0, payload.getInvocationPropertyNames().size());
payload.clearProperties(PropertyScope.OUTBOUND);
assertEquals(0, payload.getOutboundPropertyNames().size());