【Java开源代码栏目提醒】:本文主要为网学会员提供BlobRegressionTest.java,希望对需要BlobRegressionTest.java网友有所帮助,学习一下!
/*
Copyright (C) 2002-2004 MySQL AB
This program is free software; you can redistribute it and/or modify
it under the terms of version 2 of the GNU General Public License as
published by the Free Software Foundation.
There are special exceptions to the terms and conditions of the GPL
as it is applied to this software. View the full text of the
exception in file EXCEPTIONS-CONNECTOR-J in the directory of this
software distribution.
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 testsuite.regression;
import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.BufferedOutputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.StringReader;
import java.sql.Blob;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.
sql.ResultSet;
import java.sql.Statement;
import java.util.Properties;
import testsuite.BaseTestCase;
/**
* Tests fixes for BLOB handling.
*
* @author Mark Matthews
* @version $Id: BlobRegressionTest.java,v 1.1.2.19 2005/03/09 18:16:16
* mmatthews Exp $
*/
public class BlobRegressionTest extends BaseTestCase {
/**
* Creates a new BlobRegressionTest.
*
* @param name
* name of the test to run
*/
public BlobRegressionTest(String name) {
super(name);
}
/**
* Runs all test cases in this test suite
*
* @param args
*/
public static void main(String[] args) {
junit.textui.TestRunner.run(BlobRegressionTest.class);
}
/**
*
*
* @throws Exception
* ...
*/
public void testBug2670() throws Exception {
if (isRunningOnJdk131()) {
return; // test not valid on JDK-1.3.1
}
try {
byte[] blobData = new byte[32];
for (int i = 0; i < blobData.length; i++) {
blobData[i] = 1;
}
this.stmt.executeUpdate("DROP TABLE IF EXISTS testBug2670");
this.stmt
.executeUpdate("CREATE TABLE testBug2670(blobField LONGBLOB)");
PreparedStatement pStmt = this.conn
.prepareStatement("INSERT INTO testBug2670 (blobField) VALUES (?)");
pStmt.setBytes(1, blobData);
pStmt.executeUpdate();
this.rs = this.stmt
.executeQuery("SELECT blobField FROM testBug2670");
this.rs.next();
Blob blob = this.rs.getBlob(1);
//
// Test mid-point insertion
//
blob.setBytes(4, new byte[] { 2, 2, 2, 2 });
byte[] newBlobData = blob.getBytes(1L, (int) blob.length());
assertTrue("Blob changed length", blob.length() == blobData.length);
assertTrue("New data inserted wrongly",
((newBlobData[3] == 2) && (newBlobData[4] == 2)
&& (newBlobData[5] == 2) && (newBlobData[6] == 2)));
//
// Test end-point insertion
//
blob.setBytes(32, new byte[] { 2, 2, 2, 2 });
assertTrue("Blob length should be 3 larger",
blob.length() == (blobData.length + 3));
} finally {
this.stmt.executeUpdate("DROP TABLE IF EXISTS testUpdateLongBlob");
}
}
/**
*
*
* @throws Exception
* ...
*/
public void testUpdateLongBlobGT16M() throws Exception {
if (versionMeetsMinimum(4, 0)) {
try {
byte[] blobData = new byte[18 * 1024 * 1024]; // 18M blob
this.stmt
.executeUpdate("DROP TABLE IF EXISTS testUpdateLongBlob");
this.stmt
.executeUpdate("CREATE TABLE testUpdateLongBlob(blobField LONGBLOB)");
this.stmt
.executeUpdate("INSERT INTO testUpdateLongBlob (blobField) VALUES (NULL)");
PreparedStatement pStmt = this.conn
.prepareStatement("UPDATE testUpdateLongBlob SET blobField=?");
pStmt.setBytes(1, blobData);
pStmt.executeUpdate();
} finally {
this.stmt
.executeUpdate("DROP TABLE IF EXISTS testUpdateLongBlob");
}
}
}
/**
*
* @throws Exception
*/
public void testUpdatableBlobsWithCharsets() throws Exception {
byte[] smallBlob = new byte[32];
for (byte i = 0; i < smallBlob.length; i++) {
smallBlob[i] = i;
}
try {
this.stmt
.executeUpdate("DROP TABLE IF EXISTS testUpdatableBlobsWithCharsets");
this.stmt
.executeUpdate("CREATE TABLE testUpdatableBlobsWithCharsets(pk INT NOT NULL PRIMARY KEY, field1 BL