/*
Copyright (C) SYSTAP, LLC DBA Blazegraph 2006-2016. All rights reserved.
Contact:
SYSTAP, LLC DBA Blazegraph
2501 Calvert ST NW #106
Washington, DC 20008
licenses@blazegraph.com
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package com.bigdata.btree;
/**
* Unit tests of non-default B+Tree branching factors.
*
* @author <a href="mailto:thompsonbry@users.sourceforge.net">Bryan Thompson</a>
*/
public class TestBTreeBranchingFactors extends AbstractBTreeTestCase {
public TestBTreeBranchingFactors() {
}
public TestBTreeBranchingFactors(String name) {
super(name);
}
public void test_branchingFactor_1000() {
final int branchingFactor = 1000;
final BTree btree = getBTree(branchingFactor);
assertEquals("branchingFactor", branchingFactor,
btree.getBranchingFactor());
}
/**
* Unit test replicates an error reported in the ticket below. The root
* cause of the error was a confusion in the code for the "Node Serializer"
* classes used by the HTree and the BTree.
* <p>
* Note: We already have coverage for both classes of different branching
* factors and addressBits. However, this specific value caused
*
* <pre>
* 1 << addressBits
* </pre>
*
* to wrap to a negative integer and provided the clue that the
* <code>initialCapacity</code> calculation in the BTree
* {@link NodeSerializer} was incorrect.
*
* @see <a href="https://sourceforge.net/apps/trac/bigdata/ticket/598">
* B+Tree branching factor and HTree addressBits are confused in their
* NodeSerializer implementations </a>
*/
public void test_branchingFactor_1081() {
final int branchingFactor = 1081;
final BTree btree = getBTree(branchingFactor);
assertEquals("branchingFactor", branchingFactor,
btree.getBranchingFactor());
}
public void test_branchingFactor_1200() {
final int branchingFactor = 1200;
final BTree btree = getBTree(branchingFactor);
assertEquals("branchingFactor", branchingFactor,
btree.getBranchingFactor());
}
}