Bug877656Test.java

/**
 * Copyright 2011-2012 Akiban Technologies, Inc.
 * 
 * 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 com.persistit;

import static org.junit.Assert.assertEquals;

import org.junit.Test;

public class Bug877656Test extends PersistitUnitTestCase {

    @Test
    public void testForward() throws Exception {
        final Transaction txn = _persistit.getTransaction();
        txn.begin();
        final Exchange ex = _persistit.getExchange("persistit", "Bug877656Test", true);
        for (int i = 1; i < 10; i++) {
            ex.to(i).store();
        }
        txn.commit();
        txn.end();
        // ----------
        txn.begin();
        for (int i = 1; i < 10; i++) {
            ex.to(i).remove();
        }
        ex.to(0);
        int count = 0;
        for (; count < 10; count++) {
            if (!ex.traverse(Key.GTEQ, true)) {
                break;
            }
        }
        assertEquals("{{before}}", ex.getKey().toString());
        txn.commit();
        txn.end();
        assertEquals(0, count);
    }

    @Test
    public void testReverse() throws Exception {
        final Transaction txn = _persistit.getTransaction();
        txn.begin();
        final Exchange ex = _persistit.getExchange("persistit", "Bug877656Test", true);
        for (int i = 1; i < 10; i++) {
            ex.to(i).store();
        }
        txn.commit();
        txn.end();
        // ----------
        txn.begin();
        for (int i = 1; i < 10; i++) {
            ex.to(i).remove();
        }
        ex.to(11);
        int count = 0;
        for (; count < 10; count++) {
            if (!ex.traverse(Key.LTEQ, true)) {
                break;
            }
        }
        assertEquals("{{after}}", ex.getKey().toString());
        txn.commit();
        txn.end();
        assertEquals(0, count);
    }

}