From: Glen Stampoultzis Date: Thu, 27 Jun 2002 13:17:12 +0000 (+0000) Subject: Somes tests for the record size calculation class... My initial attempt and trying... X-Git-Tag: REL_1_10~280 X-Git-Url: https://source.dussan.org/?a=commitdiff_plain;h=70b38dc21b9d3827c070f4f4352ff8fe751ce369;p=poi.git Somes tests for the record size calculation class... My initial attempt and trying to understand the record size calculation stuff. BTW, I still don't get it. :( git-svn-id: https://svn.apache.org/repos/asf/jakarta/poi/trunk@352729 13f79535-47bb-0310-9956-ffa450edef68 --- diff --git a/src/testcases/org/apache/poi/hssf/record/TestSSTRecordSizeCalculator.java b/src/testcases/org/apache/poi/hssf/record/TestSSTRecordSizeCalculator.java new file mode 100644 index 0000000000..32cc57ba44 --- /dev/null +++ b/src/testcases/org/apache/poi/hssf/record/TestSSTRecordSizeCalculator.java @@ -0,0 +1,155 @@ +/* ==================================================================== + * The Apache Software License, Version 1.1 + * + * Copyright (c) 2002 The Apache Software Foundation. All rights + * reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. The end-user documentation included with the redistribution, + * if any, must include the following acknowledgment: + * "This product includes software developed by the + * Apache Software Foundation (http://www.apache.org/)." + * Alternately, this acknowledgment may appear in the software itself, + * if and wherever such third-party acknowledgments normally appear. + * + * 4. The names "Apache" and "Apache Software Foundation" and + * "Apache POI" must not be used to endorse or promote products + * derived from this software without prior written permission. For + * written permission, please contact apache@apache.org. + * + * 5. Products derived from this software may not be called "Apache", + * "Apache POI", nor may "Apache" appear in their name, without + * prior written permission of the Apache Software Foundation. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * ==================================================================== + * + * This software consists of voluntary contributions made by many + * individuals on behalf of the Apache Software Foundation. For more + * information on the Apache Software Foundation, please see + * . + */ + +package org.apache.poi.hssf.record; + +import junit.framework.TestCase; + +import java.util.List; +import java.util.ArrayList; + +import org.apache.poi.util.BinaryTree; +import org.apache.poi.util.LittleEndian; +import org.apache.poi.util.LittleEndianConsts; + +/** + * Tests that records size calculates correctly. + * + * @author Glen Stampoultzis (glens at apache.org) + */ +public class TestSSTRecordSizeCalculator + extends TestCase +{ + private static final String SMALL_STRING = "Small string"; + private static final int COMPRESSED_PLAIN_STRING_OVERHEAD = 3; + private List recordLengths; + private BinaryTree strings; + private static final int OPTION_FIELD_SIZE = 1; + + public TestSSTRecordSizeCalculator( String s ) + { + super( s ); + } + + public void testBasic() + throws Exception + { + strings.put(new Integer(0), makeUnicodeString(SMALL_STRING)); + SSTRecordSizeCalculator calculator = new SSTRecordSizeCalculator(new SSTSerializer(recordLengths, strings, 1, 1)); + assertEquals(SSTRecord.SST_RECORD_OVERHEAD + COMPRESSED_PLAIN_STRING_OVERHEAD + SMALL_STRING.length(), calculator.getRecordSize()); + } + + public void testBigStringAcrossUnicode() + throws Exception + { + String bigString = new String(new char[SSTRecord.MAX_DATA_SPACE + 100]); + strings.put(new Integer(0), makeUnicodeString(bigString)); + SSTRecordSizeCalculator calculator = new SSTRecordSizeCalculator(new SSTSerializer(recordLengths, strings, 1, 1)); + assertEquals(SSTRecord.SST_RECORD_OVERHEAD + + COMPRESSED_PLAIN_STRING_OVERHEAD + + SSTRecord.MAX_DATA_SPACE + + SSTRecord.STD_RECORD_OVERHEAD + + OPTION_FIELD_SIZE + + 100, + calculator.getRecordSize()); + + } + + public void testPerfectFit() + throws Exception + { + String perfectFit = new String(new char[SSTRecord.MAX_DATA_SPACE - COMPRESSED_PLAIN_STRING_OVERHEAD]); + strings.put(new Integer(0), makeUnicodeString(perfectFit)); + SSTRecordSizeCalculator calculator = new SSTRecordSizeCalculator(new SSTSerializer(recordLengths, strings, 1, 1)); + assertEquals(SSTRecord.SST_RECORD_OVERHEAD + + SSTRecord.MAX_DATA_SPACE, + calculator.getRecordSize()); + } + + public void testSecondStringStartsOnNewContinuation() + throws Exception + { + String perfectFit = new String(new char[SSTRecord.MAX_DATA_SPACE - COMPRESSED_PLAIN_STRING_OVERHEAD]); + strings.put(new Integer(0), makeUnicodeString(perfectFit)); + strings.put(new Integer(1), makeUnicodeString(SMALL_STRING)); + SSTRecordSizeCalculator calculator = new SSTRecordSizeCalculator(new SSTSerializer(recordLengths, strings, 1, 1)); + assertEquals(SSTRecord.SST_RECORD_OVERHEAD + + SSTRecord.MAX_DATA_SPACE + // second string + + SSTRecord.STD_RECORD_OVERHEAD + + COMPRESSED_PLAIN_STRING_OVERHEAD + + SMALL_STRING.length(), + calculator.getRecordSize()); + } + + + public void setUp() + { + recordLengths = new ArrayList(); + strings = new BinaryTree(); + } + + + private UnicodeString makeUnicodeString( String s ) + { + int length = SSTRecord.STRING_MINIMAL_OVERHEAD + s.length(); + byte[] unicodeStringBuffer = new byte[length]; + LittleEndian.putUShort( unicodeStringBuffer, 0, s.length() ); + int offset = LittleEndianConsts.SHORT_SIZE; + unicodeStringBuffer[offset++] = 0; + System.arraycopy( s.getBytes(), 0, unicodeStringBuffer, offset, s.length() ); + return new UnicodeString( UnicodeString.sid, (short) unicodeStringBuffer.length, unicodeStringBuffer ); + } + +}