DiffEngineCircularReferenceDiffTests.java

/*******************************************************************************
 * Copyright (c) 1998, 2015 Oracle and/or its affiliates. All rights reserved.
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v1.0 and Eclipse Distribution License v. 1.0
 * which accompanies this distribution.
 * The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
 * and the Eclipse Distribution License is available at
 * http://www.eclipse.org/org/documents/edl-v10.php.
 *
 * Contributors:
 *     Oracle - initial API and implementation from Oracle TopLink
******************************************************************************/
package org.eclipse.persistence.tools.workbench.test.utility.diff;

import java.util.List;

import junit.framework.Test;
import junit.framework.TestSuite;

import org.eclipse.persistence.tools.workbench.utility.diff.CompositeDiff;
import org.eclipse.persistence.tools.workbench.utility.diff.Diff;
import org.eclipse.persistence.tools.workbench.utility.diff.DiffEngine;
import org.eclipse.persistence.tools.workbench.utility.diff.Differentiator;
import org.eclipse.persistence.tools.workbench.utility.diff.ReflectiveDiff;
import org.eclipse.persistence.tools.workbench.utility.diff.ReflectiveDifferentiator;
import org.eclipse.persistence.tools.workbench.utility.diff.ReflectiveFieldDiff;
import org.eclipse.persistence.tools.workbench.utility.diff.SimpleDiff;


public class DiffEngineCircularReferenceDiffTests extends AbstractCircularReferenceDiffTests {

    public static Test suite() {
        return new TestSuite(DiffEngineCircularReferenceDiffTests.class);
    }

    public DiffEngineCircularReferenceDiffTests(String name) {
        super(name);
    }

    Differentiator buildDifferentiator() {
        DiffEngine result = new DiffEngine();
        ReflectiveDifferentiator rd;
        rd = result.addReflectiveDifferentiator(TestNode.class);
        rd.addKeyFieldNamed("name");
        rd = result.addReflectiveDifferentiator(TestRootNode.class);
        rd = result.addReflectiveDifferentiator(TestBranchNode.class);
        rd.addKeyFieldNamed("parent");
        rd.addReferenceFieldsNamed("parent", "spouse");
        return result;
    }

    void verifyMismatch03(CompositeDiff cd) {
        ReflectiveDiff rd = (ReflectiveDiff) cd.getDiffs()[1];
        ReflectiveFieldDiff rfd = (ReflectiveFieldDiff) rd.getDiffs()[0];
        assertEquals("node1", rfd.getField().getName());
        CompositeDiff cd2 = (CompositeDiff) rfd.getDiff();
        ReflectiveDiff rd2 = (ReflectiveDiff) cd2.getDiffs()[0];
        ReflectiveFieldDiff rfd2 = (ReflectiveFieldDiff) rd2.getDiffs()[1];
        assertEquals("name", rfd2.getField().getName());
        SimpleDiff ed = (SimpleDiff) rfd2.getDiff();
        assertTrue(ed.different());
        assertEquals("parent1", ed.getObject1());
        assertEquals("parent2", ed.getObject2());
    }

    void verifyMismatch09(Diff diff) {
        List leafMismatches = DiffTestTools.differentLeafDiffList(diff);
        // one failure from TestNode reflective tester, one from TestBranchNode reflective tester
        assertEquals(2, leafMismatches.size());

        Diff leafDiff = (Diff) leafMismatches.get(0);
        assertEquals(this.testRootNode1.getNode1().getChild(), leafDiff.getObject1());
        assertEquals(null, leafDiff.getObject2());

        leafDiff = (Diff) leafMismatches.get(1);
        assertEquals(this.testRootNode1.getNode1().getChild(), leafDiff.getObject1());
        assertEquals(null, leafDiff.getObject2());
    }

    void verifyMismatch10(TestBranchNode node, Diff diff) {
        List leafMismatches = DiffTestTools.differentLeafDiffList(diff);
        // one failure from Object reflective tester, on from TestNode reflective tester, one from TestBranchNode reflective tester
        assertEquals(2, leafMismatches.size());

        Diff leafDiff = (Diff) leafMismatches.get(0);
        assertEquals(this.testRootNode1.getNode1().getChild(), leafDiff.getObject1());
        assertEquals(node.getChild(), leafDiff.getObject2());

        leafDiff = (Diff) leafMismatches.get(1);
        assertEquals(this.testRootNode1.getNode1().getChild(), leafDiff.getObject1());
        assertEquals(node.getChild(), leafDiff.getObject2());
    }

    public void testDuplicateDiff1() {
        // put an aggregate object in 2 places
        TestBranchNode node = this.testRootNode1.getNode1();
        this.testRootNode1.setNode2(node);
        boolean exCaught = false;
        try {
            Diff diff = this.differentiator.diff(this.testRootNode1, this.testRootNode2);
            fail("bogus diff: " + diff);
        } catch (IllegalArgumentException ex) {
            if (ex.getMessage().indexOf(node.toString()) != -1) {
                exCaught = true;
            } else {
                throw ex;
            }
        }
        assertTrue(exCaught);
    }

    public void testDuplicateDiff2() {
        // put an aggregate object in 2 places
        TestBranchNode node = this.testRootNode2.getNode1();
        this.testRootNode2.setNode2(node);
        boolean exCaught = false;
        try {
            Diff diff = this.differentiator.diff(this.testRootNode1, this.testRootNode2);
            fail("bogus diff: " + diff);
        } catch (IllegalArgumentException ex) {
            if (ex.getMessage().indexOf(node.toString()) != -1) {
                exCaught = true;
            } else {
                throw ex;
            }
        }
        assertTrue(exCaught);
    }

}