com.fiveamsolutions.nci.commons.util.CompositeInterceptorTest.java Source code

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/**
 * The software subject to this notice and license includes both human readable
 * source code form and machine readable, binary, object code form. The po
 * Software was developed in conjunction with the National Cancer Institute
 * (NCI) by NCI employees and 5AM Solutions, Inc. (5AM). To the extent
 * government employees are authors, any rights in such works shall be subject
 * to Title 17 of the United States Code, section 105.
 *
 * This po Software License (the License) is between NCI and You. You (or
 * Your) shall mean a person or an entity, and all other entities that control,
 * are controlled by, or are under common control with the entity. Control for
 * purposes of this definition means (i) the direct or indirect power to cause
 * the direction or management of such entity, whether by contract or otherwise,
 * or (ii) ownership of fifty percent (50%) or more of the outstanding shares,
 * or (iii) beneficial ownership of such entity.
 *
 * This License is granted provided that You agree to the conditions described
 * below. NCI grants You a non-exclusive, worldwide, perpetual, fully-paid-up,
 * no-charge, irrevocable, transferable and royalty-free right and license in
 * its rights in the po Software to (i) use, install, access, operate,
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 * and prepare derivative works of the po Software; (ii) distribute and
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 * foregoing rights set out in (i) and (ii) to third parties, including the
 * right to license such rights to further third parties. For sake of clarity,
 * and not by way of limitation, NCI shall have no right of accounting or right
 * of payment from You or Your sub-licensees for the rights granted under this
 * License. This License is granted at no charge to You.
 *
 * Your redistributions of the source code for the Software must retain the
 * above copyright notice, this list of conditions and the disclaimer and
 * limitation of liability of Article 6, below. Your redistributions in object
 * code form must reproduce the above copyright notice, this list of conditions
 * and the disclaimer of Article 6 in the documentation and/or other materials
 * provided with the distribution, if any.
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 * Your end-user documentation included with the redistribution, if any, must
 * include the following acknowledgment: This product includes software
 * developed by 5AM and the National Cancer Institute. If You do not include
 * such end-user documentation, You shall include this acknowledgment in the
 * Software itself, wherever such third-party acknowledgments normally appear.
 *
 * You may not use the names "The National Cancer Institute", "NCI", or "5AM"
 * to endorse or promote products derived from this Software. This License does
 * not authorize You to use any trademarks, service marks, trade names, logos or
 * product names of either NCI or 5AM, except as required to comply with the
 * terms of this License.
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 * For sake of clarity, and not by way of limitation, You may incorporate this
 * Software into Your proprietary programs and into any third party proprietary
 * programs. However, if You incorporate the Software into third party
 * proprietary programs, You agree that You are solely responsible for obtaining
 * any permission from such third parties required to incorporate the Software
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 * the extent prohibited by law, resulting from Your failure to obtain such
 * permissions.
 *
 * For sake of clarity, and not by way of limitation, You may add Your own
 * copyright statement to Your modifications and to the derivative works, and
 * You may provide additional or different license terms and conditions in Your
 * sublicenses of modifications of the Software, or any derivative works of the
 * Software as a whole, provided Your use, reproduction, and distribution of the
 * Work otherwise complies with the conditions stated in this License.
 *
 * THIS SOFTWARE IS PROVIDED "AS IS," AND ANY EXPRESSED OR IMPLIED WARRANTIES,
 * (INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY,
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 * EVENT SHALL THE NATIONAL CANCER INSTITUTE, 5AM SOLUTIONS, INC. OR THEIR
 * AFFILIATES BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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 */
package com.fiveamsolutions.nci.commons.util;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;

import org.hibernate.Interceptor;
import org.junit.Test;

/**
 * Tests the composite interceptor.
 */
public class CompositeInterceptorTest {

    @Test
    public void testSingle() throws Exception {
        try {
            new CompositeInterceptor();
            fail();
        } catch (Exception e) {
            // expected
        }

        CountingInterceptior counter = new CountingInterceptior();
        CompositeInterceptor i = new CompositeInterceptor(counter);

        helper(i, false);
        assertEquals(18, counter.getCount());

        counter.resetCount();
        CountingInterceptior counter2 = new CountingInterceptior();
        i = new CompositeInterceptor(counter, counter2);

        helper(i, false);
        assertEquals(18, counter.getCount());
        assertEquals(16, counter2.getCount()); // 2 methods don't cascade!

        counter.resetCount();
        counter2.resetCount();

        i = new CompositeInterceptor(counter, new ModifyingInterceptor(), counter2);
        helper(i, true);
        assertEquals(18, counter.getCount());
        assertEquals(13, counter2.getCount()); // 3 more get stopped
    }

    private void helper(Interceptor i, boolean expectChanges) {
        i.afterTransactionBegin(null);
        i.afterTransactionCompletion(null);
        i.beforeTransactionCompletion(null);
        assertNull(i.getEntity(null, null));
        assertNull(i.getEntityName(null));
        if (expectChanges) {
            assertNotNull(i.findDirty(null, null, null, null, null, null));
            assertNotNull(i.instantiate(null, null, null));
            assertNotNull(i.isTransient(null));
            assertTrue(!"foo".equals(i.onPrepareStatement("foo")));
        } else {
            assertNull(i.findDirty(null, null, null, null, null, null));
            assertNull(i.instantiate(null, null, null));
            assertNull(i.isTransient(null));
            assertEquals("foo", i.onPrepareStatement("foo"));
        }
        i.onCollectionRecreate(null, null);
        i.onCollectionRemove(null, null);
        i.onCollectionUpdate(null, null);
        i.onDelete(null, null, null, null, null);
        assertEquals(expectChanges, i.onFlushDirty(null, null, null, null, null, null));
        assertEquals(expectChanges, i.onLoad(null, null, null, null, null));
        assertEquals(expectChanges, i.onSave(null, null, null, null, null));
        i.postFlush(null);
        i.preFlush(null);
    }

}