/*
* Copyright 2015 the original author or authors.
*
* Licensed 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 demo.persist;
import static org.hamcrest.Matchers.contains;
import static org.hamcrest.Matchers.containsString;
import static org.hamcrest.Matchers.is;
import static org.junit.Assert.assertThat;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.statemachine.StateMachine;
import org.springframework.statemachine.listener.StateMachineListenerAdapter;
import org.springframework.statemachine.state.State;
import org.springframework.statemachine.transition.Transition;
import org.springframework.test.annotation.DirtiesContext;
import org.springframework.test.annotation.DirtiesContext.ClassMode;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import demo.CommonConfiguration;
@RunWith(SpringJUnit4ClassRunner.class)
@DirtiesContext(classMode=ClassMode.AFTER_EACH_TEST_METHOD)
@SpringBootTest(classes = { CommonConfiguration.class, Application.class, StateMachineCommands.class })
public class PersistTests {
@Autowired
private StateMachineCommands commands;
@Autowired
private StateMachine<String, String> machine;
@Autowired
private Persist persist;
@Test
public void testNotStarted() throws Exception {
assertThat(commands.state(), is("No state"));
}
@Test
public void testInitialState() throws Exception {
TestListener listener = new TestListener();
machine.addStateListener(listener);
machine.start();
assertThat(listener.stateChangedLatch.await(3, TimeUnit.SECONDS), is(true));
assertThat(listener.stateEnteredLatch.await(3, TimeUnit.SECONDS), is(true));
assertThat(machine.getState().getIds(), contains("PLACED"));
assertThat(listener.statesEntered.size(), is(1));
assertThat(listener.statesEntered.get(0).getId(), is("PLACED"));
assertThat(listener.statesExited.size(), is(0));
}
@Test
public void testInitialDbList() {
// dataOrder [id=1, state=PLACED]Order [id=2, state=PROCESSING]Order [id=3, state=SENT]Order [id=4, state=DELIVERED]
assertThat(persist.listDbEntries(), containsString("PLACED"));
}
@Test
public void testUpdate1() {
persist.change(1, "PROCESS");
assertThat(persist.listDbEntries(), containsString("id=1, state=PROCESSING"));
}
@Test
public void testUpdate2() {
persist.change(2, "SEND");
assertThat(persist.listDbEntries(), containsString("id=2, state=SENT"));
}
private static class TestListener extends StateMachineListenerAdapter<String, String> {
volatile CountDownLatch stateChangedLatch = new CountDownLatch(1);
volatile CountDownLatch stateEnteredLatch = new CountDownLatch(1);
volatile CountDownLatch stateExitedLatch = new CountDownLatch(0);
volatile CountDownLatch transitionLatch = new CountDownLatch(0);
volatile List<Transition<String, String>> transitions = new ArrayList<Transition<String, String>>();
List<State<String, String>> statesEntered = new ArrayList<State<String, String>>();
List<State<String, String>> statesExited = new ArrayList<State<String, String>>();
@Override
public void stateChanged(State<String, String> from, State<String, String> to) {
stateChangedLatch.countDown();
}
@Override
public void stateEntered(State<String, String> state) {
statesEntered.add(state);
stateEnteredLatch.countDown();
}
@Override
public void stateExited(State<String, String> state) {
statesExited.add(state);
stateExitedLatch.countDown();
}
@Override
public void transition(Transition<String, String> transition) {
transitions.add(transition);
transitionLatch.countDown();
}
}
}