ConnectionEvaluationHandlerTest.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.HashSet;
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.rule.RuleViolation;
import org.kie.workbench.common.stunner.core.rule.RuleViolations;
import org.kie.workbench.common.stunner.core.rule.context.ConnectionContext;
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 ConnectionEvaluationHandlerTest {

    private final static String EDGE_ID = "eId";
    private final static String[] P1 = new String[]{"r1", "o1"};
    private final static String[] P2 = new String[]{"r2", "o2"};
    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
    ConnectionContext context;

    private ConnectionEvaluationHandler tested;

    @Before
    public void setup() throws Exception {
        tested = new ConnectionEvaluationHandler();
    }

    @Test
    public void testAccepts() {
        when(context.getConnectorRole()).thenReturn(EDGE_ID);
        assertTrue(tested.accepts(RULE,
                                  context));
        when(context.getConnectorRole()).thenReturn("anotherEdgeId");
        assertFalse(tested.accepts(RULE,
                                   context));
    }

    @Test
    public void testEvaluateSuccess1() {
        final Set<String> sourceRoles = new HashSet<String>(1) {{
            add("r1");
        }};
        final Set<String> targetRoles = new HashSet<String>(1) {{
            add("o1");
        }};
        when(context.getConnectorRole()).thenReturn(EDGE_ID);
        when(context.getSourceRoles()).thenReturn(Optional.of(sourceRoles));
        when(context.getTargetRoles()).thenReturn(Optional.of(targetRoles));
        final RuleViolations violations = tested.evaluate(RULE,
                                                          context);
        assertNotNull(violations);
        assertFalse(violations.violations(RuleViolation.Type.ERROR).iterator().hasNext());
    }

    @Test
    public void testEvaluateFailed1() {
        final Set<String> sourceRoles = new HashSet<String>(1) {{
            add("r1");
        }};
        final Set<String> targetRoles = new HashSet<String>(1) {{
            add("o2");
        }};
        when(context.getConnectorRole()).thenReturn(EDGE_ID);
        when(context.getSourceRoles()).thenReturn(Optional.of(sourceRoles));
        when(context.getTargetRoles()).thenReturn(Optional.of(targetRoles));
        final RuleViolations violations = tested.evaluate(RULE,
                                                          context);
        assertNotNull(violations);
        assertTrue(violations.violations(RuleViolation.Type.ERROR).iterator().hasNext());
    }

    @Test
    public void testEvaluateSuccess2() {
        final Set<String> sourceRoles = new HashSet<String>(1) {{
            add("r2");
        }};
        final Set<String> targetRoles = new HashSet<String>(1) {{
            add("o2");
        }};
        when(context.getConnectorRole()).thenReturn(EDGE_ID);
        when(context.getSourceRoles()).thenReturn(Optional.of(sourceRoles));
        when(context.getTargetRoles()).thenReturn(Optional.of(targetRoles));
        final RuleViolations violations = tested.evaluate(RULE,
                                                          context);
        assertNotNull(violations);
        assertFalse(violations.violations(RuleViolation.Type.ERROR).iterator().hasNext());
    }

    @Test
    public void testEvaluateFailed2() {
        final Set<String> sourceRoles = new HashSet<String>(1) {{
            add("r2");
        }};
        final Set<String> targetRoles = new HashSet<String>(1) {{
            add("o1");
        }};
        when(context.getConnectorRole()).thenReturn(EDGE_ID);
        when(context.getSourceRoles()).thenReturn(Optional.of(sourceRoles));
        when(context.getTargetRoles()).thenReturn(Optional.of(targetRoles));
        final RuleViolations violations = tested.evaluate(RULE,
                                                          context);
        assertNotNull(violations);
        assertTrue(violations.violations(RuleViolation.Type.ERROR).iterator().hasNext());
    }
}