| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| */ |
| package org.apache.mina.statemachine; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertSame; |
| |
| import org.apache.mina.statemachine.context.DefaultStateContext; |
| import org.apache.mina.statemachine.context.StateContext; |
| import org.apache.mina.statemachine.event.Event; |
| import org.apache.mina.statemachine.transition.AbstractSelfTransition; |
| import org.apache.mina.statemachine.transition.AbstractTransition; |
| import org.junit.Test; |
| |
| /** |
| * Tests {@link StateMachine}. |
| * |
| * @author <a href="http://mina.apache.org">Apache MINA Project</a> |
| */ |
| public class StateMachineTest { |
| |
| @Test |
| public void testBreakAndContinue() throws Exception { |
| State s1 = new State("s1"); |
| s1.addTransition(new BreakAndContinueTransition("foo")); |
| s1.addTransition(new SuccessTransition("foo")); |
| |
| StateContext context = new DefaultStateContext(); |
| StateMachine sm = new StateMachine(new State[] { s1 }, "s1"); |
| sm.handle(new Event("foo", context)); |
| assertEquals(true, context.getAttribute("success")); |
| } |
| |
| @Test |
| public void testBreakAndGotoNow() throws Exception { |
| State s1 = new State("s1"); |
| State s2 = new State("s2"); |
| s1.addTransition(new BreakAndGotoNowTransition("foo", "s2")); |
| s2.addTransition(new SuccessTransition("foo")); |
| |
| StateContext context = new DefaultStateContext(); |
| StateMachine sm = new StateMachine(new State[] { s1, s2 }, "s1"); |
| sm.handle(new Event("foo", context)); |
| assertEquals(true, context.getAttribute("success")); |
| } |
| |
| @Test |
| public void testBreakAndGotoNext() throws Exception { |
| State s1 = new State("s1"); |
| State s2 = new State("s2"); |
| s1.addTransition(new BreakAndGotoNextTransition("foo", "s2")); |
| s2.addTransition(new SuccessTransition("foo")); |
| |
| StateContext context = new DefaultStateContext(); |
| StateMachine sm = new StateMachine(new State[] { s1, s2 }, "s1"); |
| sm.handle(new Event("foo", context)); |
| assertSame(s2, context.getCurrentState()); |
| sm.handle(new Event("foo", context)); |
| assertEquals(true, context.getAttribute("success")); |
| } |
| |
| private static class SuccessTransition extends AbstractTransition { |
| public SuccessTransition(Object eventId) { |
| super(eventId); |
| } |
| |
| public SuccessTransition(Object eventId, State nextState) { |
| super(eventId, nextState); |
| } |
| |
| @Override |
| protected boolean doExecute(Event event) { |
| event.getContext().setAttribute("success", true); |
| |
| return true; |
| } |
| } |
| |
| private static class BreakAndContinueTransition extends AbstractTransition { |
| public BreakAndContinueTransition(Object eventId) { |
| super(eventId); |
| } |
| |
| public BreakAndContinueTransition(Object eventId, State nextState) { |
| super(eventId, nextState); |
| } |
| |
| @Override |
| protected boolean doExecute(Event event) { |
| StateControl.breakAndContinue(); |
| |
| return true; |
| } |
| } |
| |
| private static class BreakAndGotoNowTransition extends AbstractTransition { |
| private final String stateId; |
| |
| public BreakAndGotoNowTransition(Object eventId, String stateId) { |
| super(eventId); |
| this.stateId = stateId; |
| } |
| |
| public BreakAndGotoNowTransition(Object eventId, State nextState, String stateId) { |
| super(eventId, nextState); |
| this.stateId = stateId; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| protected boolean doExecute(Event event) { |
| StateControl.breakAndGotoNow(stateId); |
| |
| return true; |
| } |
| } |
| |
| private static class BreakAndGotoNextTransition extends AbstractTransition { |
| private final String stateId; |
| |
| public BreakAndGotoNextTransition(Object eventId, String stateId) { |
| super(eventId); |
| this.stateId = stateId; |
| } |
| |
| public BreakAndGotoNextTransition(Object eventId, State nextState, String stateId) { |
| super(eventId, nextState); |
| this.stateId = stateId; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| protected boolean doExecute(Event event) { |
| StateControl.breakAndGotoNext(stateId); |
| |
| return true; |
| } |
| } |
| |
| private static class SampleSelfTransition extends AbstractSelfTransition { |
| public SampleSelfTransition() { |
| super(); |
| } |
| |
| @Override |
| protected boolean doExecute(StateContext stateContext, State state) { |
| stateContext.setAttribute("SelfSuccess" + state.getId(), true); |
| return true; |
| } |
| |
| } |
| |
| @Test |
| public void testOnEntry() throws Exception { |
| State s1 = new State("s1"); |
| State s2 = new State("s2"); |
| |
| s1.addTransition(new SuccessTransition("foo", s2)); |
| s1.addOnExitSelfTransaction(new SampleSelfTransition()); |
| s2.addOnEntrySelfTransaction(new SampleSelfTransition()); |
| |
| StateContext context = new DefaultStateContext(); |
| StateMachine sm = new StateMachine(new State[] { s1, s2 }, "s1"); |
| sm.handle(new Event("foo", context)); |
| assertEquals(true, context.getAttribute("success")); |
| assertEquals(true, context.getAttribute("SelfSuccess" + s1.getId())); |
| assertEquals(true, context.getAttribute("SelfSuccess" + s2.getId())); |
| |
| } |
| |
| } |