GraphConnectionEvaluationHandlerTest.java

/*
 * Copyright 2017 Red Hat, Inc. and/or its affiliates.
 *
 * 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 org.kie.workbench.common.stunner.core.rule.handler.impl;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Optional;
import java.util.Set;

import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.kie.workbench.common.stunner.core.graph.Edge;
import org.kie.workbench.common.stunner.core.graph.content.definition.Definition;
import org.kie.workbench.common.stunner.core.rule.RuleViolation;
import org.kie.workbench.common.stunner.core.rule.RuleViolations;
import org.kie.workbench.common.stunner.core.rule.context.GraphConnectionContext;
import org.kie.workbench.common.stunner.core.rule.impl.CanConnect;
import org.mockito.Mock;
import org.mockito.runners.MockitoJUnitRunner;

import static org.junit.Assert.*;
import static org.mockito.Mockito.*;

@RunWith(MockitoJUnitRunner.class)
public class GraphConnectionEvaluationHandlerTest extends AbstractGraphRuleHandlerTest {

    private final static String EDGE_ID = "eId";
    private final static String[] P1 = new String[]{"theParent", CANDIDATE_ROLE1};
    private final static String[] P2 = new String[]{"theParent", CANDIDATE_ROLE2};
    private final static List<CanConnect.PermittedConnection> PCS =
            new ArrayList<CanConnect.PermittedConnection>(2) {{
                add(new CanConnect.PermittedConnection(P1[0],
                                                       P1[1]));
                add(new CanConnect.PermittedConnection(P2[0],
                                                       P2[1]));
            }};
    private final static CanConnect RULE = new CanConnect("r1",
                                                          EDGE_ID,
                                                          PCS);

    @Mock
    GraphConnectionContext context;

    @Mock
    Edge edge;

    @Mock
    Definition edgeContent;

    @Mock
    Object edgeDefinition;

    private GraphConnectionEvaluationHandler tested;
    private static final ConnectionEvaluationHandler HANDLER = new ConnectionEvaluationHandler();

    @Before
    @SuppressWarnings("unchecked")
    public void setup() throws Exception {
        super.setup();
        final Set<String> edgeLabels = Collections.singleton(EDGE_ID);
        when(edge.getContent()).thenReturn(edgeContent);
        when(edge.getLabels()).thenReturn(edgeLabels);
        when(edgeContent.getDefinition()).thenReturn(edgeDefinition);
        when(definitionAdapter.getId(eq(edgeDefinition))).thenReturn(EDGE_ID);
        when(context.getConnector()).thenReturn(edge);
        when(context.getSource()).thenReturn(Optional.of(parent));
        when(context.getTarget()).thenReturn(Optional.of(candidate));
        tested = new GraphConnectionEvaluationHandler(definitionManager,
                                                      HANDLER);
    }

    @Test
    public void testEvaluateSuccess1() {
        final RuleViolations violations = tested.evaluate(RULE,
                                                          context);
        assertNotNull(violations);
        assertFalse(violations.violations(RuleViolation.Type.ERROR).iterator().hasNext());
    }

    @Test
    @SuppressWarnings("unchecked")
    public void testEvaluateFailed1() {
        when(context.getSource()).thenReturn(Optional.of(candidate));
        when(context.getTarget()).thenReturn(Optional.of(parent));
        final RuleViolations violations = tested.evaluate(RULE,
                                                          context);
        assertNotNull(violations);
        assertTrue(violations.violations(RuleViolation.Type.ERROR).iterator().hasNext());
    }
}