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 *  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
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 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
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package org.apache.cayenne.query;

import org.apache.cayenne.ObjectId;
import org.apache.cayenne.util.Util;
import org.junit.Test;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertSame;
import static org.junit.Assert.assertTrue;

public class ObjectIdQueryTest {

    @Test
    public void testConstructorObjectId() {

        ObjectId oid = new ObjectId("MockDataObject", "a", "b");
        ObjectIdQuery query = new ObjectIdQuery(oid);

        assertSame(oid, query.getObjectId());
    }

    @Test
    public void testSerializability() throws Exception {
        ObjectId oid = new ObjectId("test", "a", "b");
        ObjectIdQuery query = new ObjectIdQuery(oid);

        Object o = Util.cloneViaSerialization(query);
        assertNotNull(o);
        assertTrue(o instanceof ObjectIdQuery);
        assertEquals(oid, ((ObjectIdQuery) o).getObjectId());
    }

    /**
     * Proper 'equals' and 'hashCode' implementations are important when mapping
     * results obtained in a QueryChain back to the query.
     */
    @Test
    public void testEquals() throws Exception {
        ObjectIdQuery q1 = new ObjectIdQuery(new ObjectId("abc", "a", 1));
        ObjectIdQuery q2 = new ObjectIdQuery(new ObjectId("abc", "a", 1));
        ObjectIdQuery q3 = new ObjectIdQuery(new ObjectId("abc", "a", 3));
        ObjectIdQuery q4 = new ObjectIdQuery(new ObjectId("123", "a", 1));

        assertTrue(q1.equals(q2));
        assertEquals(q1.hashCode(), q2.hashCode());

        assertFalse(q1.equals(q3));
        assertFalse(q1.hashCode() == q3.hashCode());

        assertFalse(q1.equals(q4));
        assertFalse(q1.hashCode() == q4.hashCode());
    }

    @Test
    public void testMetadata() {
        ObjectIdQuery q1 = new ObjectIdQuery(new ObjectId("abc", "a", 1), true, ObjectIdQuery.CACHE_REFRESH);

        assertTrue(q1.isFetchAllowed());
        assertTrue(q1.isFetchMandatory());

        QueryMetadata md1 = q1.getMetaData(null);
        assertTrue(md1.isFetchingDataRows());

        ObjectIdQuery q2 = new ObjectIdQuery(new ObjectId("abc", "a", 1), false, ObjectIdQuery.CACHE);

        assertTrue(q2.isFetchAllowed());
        assertFalse(q2.isFetchMandatory());

        QueryMetadata md2 = q2.getMetaData(null);
        assertFalse(md2.isFetchingDataRows());

        ObjectIdQuery q3 = new ObjectIdQuery(new ObjectId("abc", "a", 1), false, ObjectIdQuery.CACHE_NOREFRESH);

        assertFalse(q3.isFetchAllowed());
        assertFalse(q3.isFetchMandatory());

        QueryMetadata md3 = q3.getMetaData(null);
        assertFalse(md3.isFetchingDataRows());
    }
}