| /* |
| * 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.commons.scxml2; |
| |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.io.FileOutputStream; |
| import java.io.ObjectInputStream; |
| import java.io.ObjectOutputStream; |
| import java.io.Reader; |
| import java.net.URL; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.List; |
| import java.util.Set; |
| |
| import org.apache.commons.scxml2.env.SimpleDispatcher; |
| import org.apache.commons.scxml2.env.Tracer; |
| import org.apache.commons.scxml2.io.SCXMLReader; |
| import org.apache.commons.scxml2.io.SCXMLReader.Configuration; |
| import org.apache.commons.scxml2.model.CustomAction; |
| import org.apache.commons.scxml2.model.EnterableState; |
| import org.apache.commons.scxml2.model.SCXML; |
| import org.apache.commons.scxml2.model.TransitionTarget; |
| import org.junit.jupiter.api.Assertions; |
| |
| /** |
| * Helper methods for running SCXML unit tests. |
| */ |
| public class SCXMLTestHelper { |
| |
| /** |
| * Serialized Commons SCXML object model temporary store. |
| * Assumes the default build artifacts are generated in the |
| * "target" directory (so it can be removed via a clean build). |
| */ |
| public static final String SERIALIZATION_DIR = "target/serialization"; |
| public static final String SERIALIZATION_FILE_PREFIX = SERIALIZATION_DIR + "/scxml"; |
| public static final String SERIALIZATION_FILE_SUFFIX = ".ser"; |
| |
| // Generate a unique sequence number for the serialization files |
| private static int sequence=0; |
| |
| private synchronized static String getSequenceNumber() { |
| return Integer.toString(++sequence); |
| } |
| |
| public static URL getResource(String name) { |
| return SCXMLTestHelper.class.getClassLoader().getResource(name); |
| } |
| |
| public static SCXML parse(final String scxmlResource) throws Exception { |
| Assertions.assertNotNull(scxmlResource); |
| return parse(getResource(scxmlResource), null); |
| } |
| |
| public static SCXML parse(final URL url) throws Exception { |
| return parse(url, null); |
| } |
| |
| public static SCXML parse(final String scxmlResource, final List<CustomAction> customActions) throws Exception { |
| Assertions.assertNotNull(scxmlResource); |
| return parse(getResource(scxmlResource), customActions); |
| } |
| |
| public static SCXML parse(final URL url, final List<CustomAction> customActions) throws Exception { |
| Assertions.assertNotNull(url); |
| Configuration configuration = new Configuration(null, null, customActions); |
| SCXML scxml = SCXMLReader.read(url, configuration); |
| Assertions.assertNotNull(scxml); |
| return testModelSerializability(scxml); |
| } |
| |
| public static SCXML parse(final Reader scxmlReader, final List<CustomAction> customActions) throws Exception { |
| Assertions.assertNotNull(scxmlReader); |
| Configuration configuration = new Configuration(null, null, customActions); |
| SCXML scxml = SCXMLReader.read(scxmlReader, configuration); |
| Assertions.assertNotNull(scxml); |
| return testModelSerializability(scxml); |
| } |
| |
| public static SCXMLExecutor getExecutor(final URL url) throws Exception { |
| return getExecutor(parse(url), null); |
| } |
| |
| public static SCXMLExecutor getExecutor(final String scxmlResource) throws Exception { |
| return getExecutor(parse(scxmlResource), null); |
| } |
| |
| public static SCXMLExecutor getExecutor(final SCXML scxml) throws Exception { |
| return getExecutor(scxml, null); |
| } |
| |
| public static SCXMLExecutor getExecutor(final URL url, final Evaluator evaluator) throws Exception { |
| return getExecutor(parse(url), evaluator); |
| } |
| |
| public static SCXMLExecutor getExecutor(final SCXML scxml, final Evaluator evaluator) throws Exception { |
| return getExecutor(scxml, evaluator, new SimpleDispatcher()); |
| } |
| |
| public static SCXMLExecutor getExecutor(final SCXML scxml, final Evaluator evaluator, final EventDispatcher eventDispatcher) throws Exception { |
| Tracer trc = new Tracer(); |
| SCXMLExecutor exec = new SCXMLExecutor(evaluator, eventDispatcher, trc); |
| exec.setStateMachine(scxml); |
| exec.addListener(scxml, trc); |
| return exec; |
| } |
| |
| public static TransitionTarget lookupTransitionTarget(SCXMLExecutor exec, String id) { |
| return exec.getStateMachine().getTargets().get(id); |
| } |
| |
| public static Context lookupContext(SCXMLExecutor exec, String id) { |
| TransitionTarget tt = lookupTransitionTarget(exec, id); |
| if (tt == null || !(tt instanceof EnterableState)) { |
| return null; |
| } |
| return exec.getSCInstance().lookupContext((EnterableState)tt); |
| } |
| |
| public static void assertState(SCXMLExecutor exec, String expectedStateId) { |
| Set<EnterableState> currentStates = exec.getStatus().getStates(); |
| Assertions.assertEquals(1, currentStates.size(), |
| "Expected 1 simple (leaf) state with id '" + expectedStateId + |
| "' but found " + currentStates.size() + " states instead."); |
| Assertions.assertEquals(expectedStateId, currentStates.iterator(). |
| next().getId()); |
| } |
| |
| public static Set<EnterableState> fireEvent(SCXMLExecutor exec, String name) throws Exception { |
| return fireEvent(exec, name, null); |
| } |
| |
| public static Set<EnterableState> fireEvent(SCXMLExecutor exec, String name, Object data) throws Exception { |
| TriggerEvent[] evts = {new EventBuilder(name, TriggerEvent.SIGNAL_EVENT).data(data).build()}; |
| exec.triggerEvents(evts); |
| return exec.getStatus().getStates(); |
| } |
| |
| public static Set<EnterableState> fireEvent(SCXMLExecutor exec, TriggerEvent te) throws Exception { |
| exec.triggerEvent(te); |
| return exec.getStatus().getStates(); |
| } |
| |
| public static Set<EnterableState> fireEvents(SCXMLExecutor exec, TriggerEvent[] evts) throws Exception { |
| exec.triggerEvents(evts); |
| return exec.getStatus().getStates(); |
| } |
| |
| public static void assertPostTriggerState(SCXMLExecutor exec, |
| String triggerEventName, String expectedStateId) throws Exception { |
| assertPostTriggerState(exec, triggerEventName, null, expectedStateId); |
| } |
| |
| public static void assertPostTriggerState(SCXMLExecutor exec, |
| String triggerEventName, Object data, String expectedStateId) throws Exception { |
| assertPostTriggerState(exec, new EventBuilder(triggerEventName, TriggerEvent.SIGNAL_EVENT) |
| .data(data).build(), expectedStateId); |
| } |
| |
| public static void assertPostTriggerStates(SCXMLExecutor exec, |
| String triggerEventName, String[] expectedStateIds) throws Exception { |
| assertPostTriggerStates(exec, triggerEventName, null, expectedStateIds); |
| } |
| |
| public static void assertPostTriggerStates(SCXMLExecutor exec, |
| String triggerEventName, Object data, String[] expectedStateIds) throws Exception { |
| assertPostTriggerStates(exec, new EventBuilder(triggerEventName, TriggerEvent.SIGNAL_EVENT) |
| .data(data).build(), expectedStateIds); |
| } |
| |
| public static void assertPostTriggerState(SCXMLExecutor exec, |
| TriggerEvent triggerEvent, String expectedStateId) throws Exception { |
| Set<EnterableState> currentStates = fireEvent(exec, triggerEvent); |
| Assertions.assertEquals(1, currentStates.size(), |
| "Expected 1 simple (leaf) state with id '" |
| + expectedStateId + "' on firing event " + triggerEvent |
| + " but found " + currentStates.size() + " states instead."); |
| Assertions.assertEquals(expectedStateId, currentStates.iterator(). |
| next().getId()); |
| } |
| |
| public static void assertPostTriggerStates(SCXMLExecutor exec, |
| TriggerEvent triggerEvent, String[] expectedStateIds) throws Exception { |
| if (expectedStateIds == null || expectedStateIds.length == 0) { |
| Assertions.fail("Must specify an array of one or more " |
| + "expected state IDs"); |
| } |
| Set<EnterableState> currentStates = fireEvent(exec, triggerEvent); |
| int n = expectedStateIds.length; |
| Assertions.assertEquals(n, currentStates.size(), |
| "Expected " + n + " simple (leaf) state(s) " |
| + " on firing event " + triggerEvent + " but found " |
| + currentStates.size() + " states instead."); |
| List<String> expectedStateIdList = new ArrayList<>(Arrays.asList(expectedStateIds)); |
| for (TransitionTarget tt : currentStates) { |
| String stateId = tt.getId(); |
| if(!expectedStateIdList.remove(stateId)) { |
| Assertions.fail("Expected state with id '" + stateId |
| + "' in current states on firing event " |
| + triggerEvent); |
| } |
| } |
| Assertions.assertEquals(0, expectedStateIdList.size(), |
| "More states in current configuration than those" |
| + "specified in the expected state ids '" + Arrays.toString(expectedStateIds) + "'"); |
| } |
| |
| public static SCXML testModelSerializability(final SCXML scxml) throws Exception { |
| File fileDir = new File(SERIALIZATION_DIR); |
| if (!fileDir.exists()) { |
| fileDir.mkdirs(); |
| } |
| String filename = SERIALIZATION_FILE_PREFIX |
| + getSequenceNumber() + SERIALIZATION_FILE_SUFFIX; |
| SCXML roundtrip; |
| ObjectOutputStream out = |
| new ObjectOutputStream(new FileOutputStream(filename)); |
| out.writeObject(scxml); |
| out.close(); |
| ObjectInputStream in = |
| new ObjectInputStream(new FileInputStream(filename)); |
| roundtrip = (SCXML) in.readObject(); |
| in.close(); |
| return roundtrip; |
| } |
| |
| public static SCXMLExecutor testInstanceSerializability(final SCXMLExecutor exec) throws Exception { |
| File fileDir = new File(SERIALIZATION_DIR); |
| if (!fileDir.exists()) { |
| fileDir.mkdirs(); |
| } |
| String filename = SERIALIZATION_FILE_PREFIX |
| + getSequenceNumber() + SERIALIZATION_FILE_SUFFIX; |
| ObjectOutputStream out = |
| new ObjectOutputStream(new FileOutputStream(filename)); |
| out.writeObject(exec.detachInstance()); |
| out.close(); |
| ObjectInputStream in = |
| new SCInstanceObjectInputStream(new FileInputStream(filename)); |
| exec.attachInstance((SCInstance) in.readObject()); |
| in.close(); |
| return exec; |
| } |
| |
| /** |
| * Discourage instantiation. |
| */ |
| private SCXMLTestHelper() { |
| } |
| } |