AddDockedNodeCommandTest.java

/*
 * Copyright 2016 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.graph.command.impl;

import java.util.List;

import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.kie.workbench.common.stunner.core.command.Command;
import org.kie.workbench.common.stunner.core.command.CommandResult;
import org.kie.workbench.common.stunner.core.graph.Node;
import org.kie.workbench.common.stunner.core.rule.RuleEvaluationContext;
import org.kie.workbench.common.stunner.core.rule.RuleSet;
import org.kie.workbench.common.stunner.core.rule.RuleViolation;
import org.kie.workbench.common.stunner.core.rule.context.CardinalityContext;
import org.kie.workbench.common.stunner.core.rule.context.ElementCardinalityContext;
import org.kie.workbench.common.stunner.core.rule.context.NodeDockingContext;
import org.mockito.ArgumentCaptor;
import org.mockito.runners.MockitoJUnitRunner;

import static org.junit.Assert.*;
import static org.kie.workbench.common.stunner.core.TestingGraphUtils.verifyCardinality;
import static org.kie.workbench.common.stunner.core.TestingGraphUtils.verifyDocking;
import static org.mockito.Matchers.eq;
import static org.mockito.Mockito.*;

@RunWith(MockitoJUnitRunner.class)
public class AddDockedNodeCommandTest extends AbstractGraphCommandTest {

    private static final String PARENT_UUID = "parentUUID";
    private static final String CANDIDATE_UUID = "candidateUUID";

    private Node parent;
    private Node candidate;

    private AddDockedNodeCommand tested;

    @Before
    public void setup() throws Exception {
        super.init(500,
                   500);
        this.parent = mockNode(PARENT_UUID);
        this.candidate = mockNode(CANDIDATE_UUID);
        when(graphIndex.getNode(eq(PARENT_UUID))).thenReturn(parent);
        when(graphIndex.getNode(eq(CANDIDATE_UUID))).thenReturn(candidate);
        this.tested = new AddDockedNodeCommand(PARENT_UUID,
                                               candidate);
    }

    @Test
    @SuppressWarnings("unchecked")
    public void testInitializeCommands() {
        this.tested = spy(tested);
        tested.initialize(graphCommandExecutionContext);
        ArgumentCaptor<Command> commandArgumentCaptor = ArgumentCaptor.forClass(Command.class);
        verify(tested,
               times(2)).addCommand(commandArgumentCaptor.capture());
        List<Command> commands = commandArgumentCaptor.getAllValues();
        assertNotNull(commands);
        assertTrue(commands.size() == 2);
        assertTrue(commands.get(0) instanceof RegisterNodeCommand);
        assertTrue(commands.get(1) instanceof DockNodeCommand);
    }

    @Test
    @SuppressWarnings("unchecked")
    public void testAllow() {
        CommandResult<RuleViolation> result = tested.allow(graphCommandExecutionContext);
        assertEquals(CommandResult.Type.INFO,
                     result.getType());
        final ArgumentCaptor<RuleEvaluationContext> contextCaptor = ArgumentCaptor.forClass(RuleEvaluationContext.class);
        verify(ruleManager,
               times(2)).evaluate(eq(ruleSet),
                                  contextCaptor.capture());
        final List<RuleEvaluationContext> contexts = contextCaptor.getAllValues();
        assertEquals(2,
                     contexts.size());
        verifyCardinality((ElementCardinalityContext) contexts.get(0),
                          graph,
                          candidate,
                          CardinalityContext.Operation.ADD);
        verifyDocking((NodeDockingContext) contexts.get(1),
                      parent,
                      candidate);
    }

    @Test
    @SuppressWarnings("unchecked")
    public void testAllowNoRules() {
        when(graphCommandExecutionContext.getRuleManager()).thenReturn(null);
        CommandResult<RuleViolation> result = tested.allow(graphCommandExecutionContext);
        assertEquals(CommandResult.Type.INFO,
                     result.getType());
        verify(ruleManager,
               times(0)).evaluate(any(RuleSet.class),
                                  any(RuleEvaluationContext.class));
    }
}