src/test/java/org/apache/commons/scxml2/SCInstanceTest.java

/*
 * 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
 *
 *     https://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.util.HashSet;
import java.util.Set;

import org.apache.commons.scxml2.env.SimpleContext;
import org.apache.commons.scxml2.env.jexl.JexlEvaluator;
import org.apache.commons.scxml2.model.EnterableState;
import org.apache.commons.scxml2.model.History;
import org.apache.commons.scxml2.model.State;
import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;

class SCInstanceTest {

    private SCXMLExecutor executor;
    private SCInstance instance;

    @BeforeEach
    public void setUp() {
        executor = new SCXMLExecutor();
        instance = executor.getSCInstance();
    }

    @Test
    void testGetContext() {
        final State target = new State();
        target.setId("1");

        final Context context = new SimpleContext();
        context.set("name", "value");

        instance.setContext(target, context);

        Assertions.assertEquals("value", instance.getContext(target).get("name"));
    }

    @Test
    void testGetContextNullParent() throws Exception {
        final State target = new State();
        target.setId("1");

        final Context context = new SimpleContext();
        context.set("name", "value");
        instance.setRootContext(context);

        final Evaluator evaluator = new JexlEvaluator();
        executor.setEvaluator(evaluator);

        Assertions.assertEquals("value", instance.getContext(target).get("name"));
        Assertions.assertEquals("value", instance.lookupContext(target).get("name"));
    }

    @Test
    void testGetContextParent() throws Exception {
        final State target = new State();
        target.setId("1");

        final State parent = new State();
        parent.setId("parent");

        target.setParent(parent);

        final Context context = new SimpleContext();
        context.set("name", "value");
        instance.setRootContext(context);

        final Evaluator evaluator = new JexlEvaluator();
        executor.setEvaluator(evaluator);

        Assertions.assertEquals("value", instance.getContext(target).get("name"));
        Assertions.assertEquals("value", instance.lookupContext(target).get("name"));
    }

    @Test
    void testGetLastConfiguration() {
        final History history = new History();
        history.setId("1");

        final Set<EnterableState> configuration = new HashSet<>();
        final EnterableState tt1 = new State();
        final EnterableState tt2 = new State();
        configuration.add(tt1);
        configuration.add(tt2);

        instance.setLastConfiguration(history, configuration);

        final Set<EnterableState> returnConfiguration = instance.getLastConfiguration(history);

        Assertions.assertEquals(2, returnConfiguration.size());
        Assertions.assertTrue(returnConfiguration.contains(tt1));
        Assertions.assertTrue(returnConfiguration.contains(tt2));
    }

    @Test
    void testGetLastConfigurationNull() {
        final History history = new History();

        final Set<EnterableState> returnConfiguration = instance.getLastConfiguration(history);

        Assertions.assertEquals(0, returnConfiguration.size());
    }

    @Test
    void testGetRootContext() {
        final Context context = new SimpleContext();
        context.set("name", "value");

        instance.setRootContext(context);
        Assertions.assertEquals("value", instance.getRootContext().get("name"));
    }

    @Test
    void testIsEmpty() {
        Assertions.assertTrue(instance.getLastConfiguration(new History()).isEmpty());
    }

    @Test
    void testIsEmptyFalse() {
        final History history = new History();
        history.setId("1");

        final Set<EnterableState> configuration = new HashSet<>();
        final EnterableState tt1 = new State();
        configuration.add(tt1);

        instance.setLastConfiguration(history, configuration);

        Assertions.assertFalse(instance.getLastConfiguration(history).isEmpty());
    }

    @Test
    void testReset() {
        final History history = new History();
        history.setId("1");

        final Set<EnterableState> configuration = new HashSet<>();
        final EnterableState tt1 = new State();
        configuration.add(tt1);

        instance.setLastConfiguration(history, configuration);

        instance.resetConfiguration(history);

        Assertions.assertTrue(instance.getLastConfiguration(history).isEmpty());
    }

}