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StringRegressionTest.java

/*
 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.ByteArrayOutputStream;
import java.io.PrintStream;
import java.sql.Clob;
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;

import com.mysql.jdbc.CharsetMapping;
import com.mysql.jdbc.StringUtils;

/**
 * Tests for regressions of bugs in String handling in the driver.
 * 
 * @author Mark Matthews
 * @version StringRegressionTest.java,v 1.1 2002/11/04 14:58:25 mark_matthews
 *          Exp
 */
00049 public class StringRegressionTest extends BaseTestCase {
      /**
       * Creates a new StringTest object.
       * 
       * @param name
       *            DOCUMENT ME!
       */
00056       public StringRegressionTest(String name) {
            super(name);
      }

      /**
       * Runs all test cases in this test suite
       * 
       * @param args
       */
00065       public static void main(String[] args) {
            junit.textui.TestRunner.run(StringRegressionTest.class);
      }

      /**
       * Tests character conversion bug.
       * 
       * @throws Exception
       *             if there is an internal error (which is a bug).
       */
00075       public void testAsciiCharConversion() throws Exception {
            byte[] buf = new byte[10];
            buf[0] = (byte) '?';
            buf[1] = (byte) 'S';
            buf[2] = (byte) 't';
            buf[3] = (byte) 'a';
            buf[4] = (byte) 't';
            buf[5] = (byte) 'e';
            buf[6] = (byte) '-';
            buf[7] = (byte) 'b';
            buf[8] = (byte) 'o';
            buf[9] = (byte) 't';

            String testString = "?State-bot";
            String convertedString = StringUtils.toAsciiString(buf);

            for (int i = 0; i < convertedString.length(); i++) {
                  System.out.println((byte) convertedString.charAt(i));
            }

            assertTrue("Converted string != test string", testString
                        .equals(convertedString));
      }

      /**
       * Tests fix for BUG#4010 -- GBK encoding getting escaped doubly when
       * database default character set is GBK. Requires version older than 4.1.0
       * and server set to default character set of 'gbk' to run.
       * 
       * @throws Exception
       *             if the test fails.
       */
00107       public void testBug4010() throws Exception {
            if (!versionMeetsMinimum(4, 1)) {
                  if ("GBK".equalsIgnoreCase(getMysqlVariable("character_set"))) {
                        String origString = "\u603d";
                        Properties props = new Properties();
                        props.put("useUnicode", "true");
                        props.put("characterEncoding", "GBK");

                        Connection unicodeConn = getConnectionWithProps(props);
                        Statement unicodeStmt = unicodeConn.createStatement();
                        PreparedStatement unicodePstmt = unicodeConn
                                    .prepareStatement("INSERT INTO testBug4010 VALUES (?)");

                        try {
                              unicodeStmt
                                          .executeUpdate("DROP TABLE IF EXISTS testBug4010");
                              unicodeStmt
                                          .executeUpdate("CREATE TABLE testBug4010 (field1 varchar(10))");

                              unicodePstmt.setString(1, origString);
                              unicodePstmt.executeUpdate();

                              this.rs = unicodeStmt
                                          .executeQuery("SELECT * FROM testBug4010");
                              assertTrue(this.rs.next());

                              String stringFromDb = this.rs.getString(1);
                              assertTrue("Retrieved string != sent string", origString
                                          .equals(stringFromDb));
                        } finally {
                              unicodeStmt
                                          .executeUpdate("DROP TABLE IF EXISTS testBug4010");
                              unicodeStmt.close();
                              unicodePstmt.close();
                              unicodeConn.close();
                        }
                  } else {
                        System.err
                                    .println("WARN: Test not valid for servers not running GBK encoding");
                  }
            } else {
                  System.err
                              .println("WARN: Test not valid for MySQL version > 4.1.0, skipping");
            }
      }

      /**
       * Tests for regression of encoding forced by user, reported by Jive
       * Software
       * 
       * @throws Exception
       *             when encoding is not supported (which is a bug)
       */
00160       public void testEncodingRegression() throws Exception {
            Properties props = new Properties();
            props.put("characterEncoding", "UTF-8");
            props.put("useUnicode", "true");
            DriverManager.getConnection(dbUrl, props).close();
      }

      /**
       * Tests fix for BUG#879
       * 
       * @throws Exception
       *             if the bug resurfaces.
       */
00173       public void testEscapeSJISDoubleEscapeBug() throws Exception {
            if (!isRunningOnJdk131()) {
                  String testString = "'It\\'s a boy!'";

                  byte[] testStringAsBytes = testString.getBytes("SJIS");

                  byte[] escapedStringBytes = StringUtils
                              .escapeEasternUnicodeByteStream(testStringAsBytes,
                                          testString, 0, testString.length());

                  String escapedString = new String(escapedStringBytes, "SJIS");

                  assertTrue(testString.equals(escapedString));

                  byte[] origByteStream = new byte[] { (byte) 0x95, (byte) 0x5c,
                              (byte) 0x8e, (byte) 0x96, (byte) 0x5c, (byte) 0x62,
                              (byte) 0x5c };

                  String origString = "\u955c\u8e96\u5c62\\";

                  byte[] newByteStream = StringUtils.escapeEasternUnicodeByteStream(
                              origByteStream, origString, 0, origString.length());

                  assertTrue((newByteStream.length == (origByteStream.length + 2))
                              && (newByteStream[1] == 0x5c) && (newByteStream[2] == 0x5c)
                              && (newByteStream[5] == 0x5c) && (newByteStream[6] == 0x5c));

                  origByteStream = new byte[] { (byte) 0x8d, (byte) 0xb2,
                              (byte) 0x93, (byte) 0x91, (byte) 0x81, (byte) 0x40,
                              (byte) 0x8c, (byte) 0x5c };

                  testString = new String(origByteStream, "SJIS");

                  Properties connProps = new Properties();
                  connProps.put("useUnicode", "true");
                  connProps.put("characterEncoding", "sjis");

                  Connection sjisConn = getConnectionWithProps(connProps);
                  Statement sjisStmt = sjisConn.createStatement();

                  try {
                        sjisStmt
                                    .executeUpdate("DROP TABLE IF EXISTS doubleEscapeSJISTest");
                        sjisStmt
                                    .executeUpdate("CREATE TABLE doubleEscapeSJISTest (field1 BLOB)");

                        PreparedStatement sjisPStmt = sjisConn
                                    .prepareStatement("INSERT INTO doubleEscapeSJISTest VALUES (?)");
                        sjisPStmt.setString(1, testString);
                        sjisPStmt.executeUpdate();

                        this.rs = sjisStmt
                                    .executeQuery("SELECT * FROM doubleEscapeSJISTest");

                        this.rs.next();

                        String retrString = this.rs.getString(1);

                        System.out.println(retrString.equals(testString));
                  } finally {
                        sjisStmt
                                    .executeUpdate("DROP TABLE IF EXISTS doubleEscapeSJISTest");
                  }
            }
      }

      /**
       * DOCUMENT ME!
       * 
       * @throws Exception
       *             DOCUMENT ME!
       */
00245       public void testGreekUtf8411() throws Exception {
            if (versionMeetsMinimum(4, 1)) {
                  try {
                        Properties newProps = new Properties();
                        newProps.put("useUnicode", "true");
                        newProps.put("characterEncoding", "UTF-8");

                        Connection utf8Conn = this.getConnectionWithProps(newProps);

                        Statement utfStmt = utf8Conn.createStatement();

                        utfStmt.executeUpdate("DROP TABLE IF EXISTS greekunicode");
                        utfStmt
                                    .executeUpdate("CREATE TABLE greekunicode(ID INTEGER NOT NULL "
                                                + " AUTO_INCREMENT,UpperCase VARCHAR (30),LowerCase VARCHAR (30),Accented "
                                                + " VARCHAR (30),Special VARCHAR (30),PRIMARY KEY(ID)) TYPE = InnoDB, DEFAULT "
                                                + "CHARACTER SET utf8");

                        String upper = "\u0394\u930F\u039A\u0399\u039C\u0397";
                        String lower = "\u03B4\u03BF\u03BA\u03B9\u03BC\u03B7";
                        String accented = "\u03B4\u03CC\u03BA\u03AF\u03BC\u03AE";
                        String special = "\u037E\u03C2\u03B0";

                        utfStmt.executeUpdate("INSERT INTO greekunicode VALUES "
                                    + "('1','" + upper + "','" + lower + "','" + accented
                                    + "','" + special + "')");

                        this.rs = utfStmt
                                    .executeQuery("SELECT UpperCase, LowerCase, Accented, Special from greekunicode");

                        this.rs.next();

                        assertTrue(upper.equals(this.rs.getString(1)));
                        assertTrue(lower.equals(this.rs.getString(2)));
                        assertTrue(accented.equals(this.rs.getString(3)));
                        assertTrue(special.equals(this.rs.getString(4)));
                  } finally {
                        this.stmt.executeUpdate("DROP TABLE IF EXISTS greekunicode");
                  }
            }
      }

      /**
       * Tests that 'latin1' character conversion works correctly.
       * 
       * @throws Exception
       *             if any errors occur
       */
00293       public void testLatin1Encoding() throws Exception {
            char[] latin1Charset = { 0x0000, 0x0001, 0x0002, 0x0003, 0x0004,
                        0x0005, 0x0006, 0x0007, 0x0008, 0x0009, 0x000A, 0x000B, 0x000C,
                        0x000D, 0x000E, 0x000F, 0x0010, 0x0011, 0x0012, 0x0013, 0x0014,
                        0x0015, 0x0016, 0x0017, 0x0018, 0x0019, 0x001A, 0x001B, 0x001C,
                        0x001D, 0x001E, 0x001F, 0x0020, 0x0021, 0x0022, 0x0023, 0x0024,
                        0x0025, 0x0026, 0x0027, 0x0028, 0x0029, 0x002A, 0x002B, 0x002C,
                        0x002D, 0x002E, 0x002F, 0x0030, 0x0031, 0x0032, 0x0033, 0x0034,
                        0x0035, 0x0036, 0x0037, 0x0038, 0x0039, 0x003A, 0x003B, 0x003C,
                        0x003D, 0x003E, 0x003F, 0x0040, 0x0041, 0x0042, 0x0043, 0x0044,
                        0x0045, 0x0046, 0x0047, 0x0048, 0x0049, 0x004A, 0x004B, 0x004C,
                        0x004D, 0x004E, 0x004F, 0x0050, 0x0051, 0x0052, 0x0053, 0x0054,
                        0x0055, 0x0056, 0x0057, 0x0058, 0x0059, 0x005A, 0x005B, 0x005C,
                        0x005D, 0x005E, 0x005F, 0x0060, 0x0061, 0x0062, 0x0063, 0x0064,
                        0x0065, 0x0066, 0x0067, 0x0068, 0x0069, 0x006A, 0x006B, 0x006C,
                        0x006D, 0x006E, 0x006F, 0x0070, 0x0071, 0x0072, 0x0073, 0x0074,
                        0x0075, 0x0076, 0x0077, 0x0078, 0x0079, 0x007A, 0x007B, 0x007C,
                        0x007D, 0x007E, 0x007F, 0x0080, 0x0081, 0x0082, 0x0083, 0x0084,
                        0x0085, 0x0086, 0x0087, 0x0088, 0x0089, 0x008A, 0x008B, 0x008C,
                        0x008D, 0x008E, 0x008F, 0x0090, 0x0091, 0x0092, 0x0093, 0x0094,
                        0x0095, 0x0096, 0x0097, 0x0098, 0x0099, 0x009A, 0x009B, 0x009C,
                        0x009D, 0x009E, 0x009F, 0x00A0, 0x00A1, 0x00A2, 0x00A3, 0x00A4,
                        0x00A5, 0x00A6, 0x00A7, 0x00A8, 0x00A9, 0x00AA, 0x00AB, 0x00AC,
                        0x00AD, 0x00AE, 0x00AF, 0x00B0, 0x00B1, 0x00B2, 0x00B3, 0x00B4,
                        0x00B5, 0x00B6, 0x00B7, 0x00B8, 0x00B9, 0x00BA, 0x00BB, 0x00BC,
                        0x00BD, 0x00BE, 0x00BF, 0x00C0, 0x00C1, 0x00C2, 0x00C3, 0x00C4,
                        0x00C5, 0x00C6, 0x00C7, 0x00C8, 0x00C9, 0x00CA, 0x00CB, 0x00CC,
                        0x00CD, 0x00CE, 0x00CF, 0x00D0, 0x00D1, 0x00D2, 0x00D3, 0x00D4,
                        0x00D5, 0x00D6, 0x00D7, 0x00D8, 0x00D9, 0x00DA, 0x00DB, 0x00DC,
                        0x00DD, 0x00DE, 0x00DF, 0x00E0, 0x00E1, 0x00E2, 0x00E3, 0x00E4,
                        0x00E5, 0x00E6, 0x00E7, 0x00E8, 0x00E9, 0x00EA, 0x00EB, 0x00EC,
                        0x00ED, 0x00EE, 0x00EF, 0x00F0, 0x00F1, 0x00F2, 0x00F3, 0x00F4,
                        0x00F5, 0x00F6, 0x00F7, 0x00F8, 0x00F9, 0x00FA, 0x00FB, 0x00FC,
                        0x00FD, 0x00FE, 0x00FF };

            String latin1String = new String(latin1Charset);
            PreparedStatement pStmt = null;

            try {
                  this.stmt.executeUpdate("DROP TABLE IF EXISTS latin1RegressTest");
                  this.stmt
                              .executeUpdate("CREATE TABLE latin1RegressTest (stringField TEXT)");

                  pStmt = this.conn
                              .prepareStatement("INSERT INTO latin1RegressTest VALUES (?)");
                  pStmt.setString(1, latin1String);
                  pStmt.executeUpdate();

                  ((com.mysql.jdbc.Connection) this.conn).setTraceProtocol(true);

                  this.rs = this.stmt.executeQuery("SELECT * FROM latin1RegressTest");
                  ((com.mysql.jdbc.Connection) this.conn).setTraceProtocol(false);

                  this.rs.next();

                  String retrievedString = this.rs.getString(1);

                  System.out.println(latin1String);
                  System.out.println(retrievedString);

                  if (!retrievedString.equals(latin1String)) {
                        int stringLength = Math.min(retrievedString.length(),
                                    latin1String.length());

                        for (int i = 0; i < stringLength; i++) {
                              char rChar = retrievedString.charAt(i);
                              char origChar = latin1String.charAt(i);

                              if ((rChar != '?') && (rChar != origChar)) {
                                    fail("characters differ at position "
                                                + i
                                                + "'"
                                                + rChar
                                                + "' retrieved from database, original char was '"
                                                + origChar + "'");
                              }
                        }
                  }
            } finally {
                  if (this.rs != null) {
                        try {
                              this.rs.close();
                        } catch (Exception ex) {
                              // ignore
                        }
                  }

                  if (pStmt != null) {
                        try {
                              pStmt.close();
                        } catch (Exception ex) {
                              // ignore
                        }
                  }

                  this.stmt.executeUpdate("DROP TABLE IF EXISTS latin1RegressTest");
            }
      }

      /**
       * Tests newline being treated correctly.
       * 
       * @throws Exception
       *             if an error occurs
       */
00398       public void testNewlines() throws Exception {
            String newlineStr = "Foo\nBar\n\rBaz";

            this.stmt.executeUpdate("DROP TABLE IF EXISTS newlineRegressTest");
            this.stmt
                        .executeUpdate("CREATE TABLE newlineRegressTest (field1 MEDIUMTEXT)");

            try {
                  this.stmt.executeUpdate("INSERT INTO newlineRegressTest VALUES ('"
                              + newlineStr + "')");
                  this.pstmt = this.conn
                              .prepareStatement("INSERT INTO newlineRegressTest VALUES (?)");
                  this.pstmt.setString(1, newlineStr);
                  this.pstmt.executeUpdate();

                  this.rs = this.stmt
                              .executeQuery("SELECT * FROM newlineRegressTest");

                  while (this.rs.next()) {
                        assertTrue(this.rs.getString(1).equals(newlineStr));
                  }
            } finally {
                  this.stmt.executeUpdate("DROP TABLE IF EXISTS newlineRegressTest");
            }
      }

      /**
       * Tests that single-byte character conversion works correctly.
       * 
       * @throws Exception
       *             if any errors occur
       */
      // TODO: Use Unicode Literal escapes for this, for now, this test is
      // broken :(
      /*
       * public void testSingleByteConversion() throws Exception {
       * testConversionForString("latin1", "��� ����");
       * testConversionForString("latin1", "Kaarle ��nis Ilmari");
       * testConversionForString("latin1",
       * "������������������"); }
       */

      /**
       * Tests that the 0x5c escaping works (we didn't use to have this).
       * 
       * @throws Exception
       *             if an error occurs.
       */
00446       public void testSjis5c() throws Exception {
            byte[] origByteStream = new byte[] { (byte) 0x95, (byte) 0x5c,
                        (byte) 0x8e, (byte) 0x96 };

            //
            // Print the hex values of the string
            //
            StringBuffer bytesOut = new StringBuffer();

            for (int i = 0; i < origByteStream.length; i++) {
                  bytesOut.append(Integer.toHexString(origByteStream[i] & 255));
                  bytesOut.append(" ");
            }

            System.out.println(bytesOut.toString());

            String origString = new String(origByteStream, "SJIS");
            byte[] newByteStream = StringUtils.getBytes(origString, "SJIS",
                        "ISO8859_1              ", false, null);

            //
            // Print the hex values of the string (should have an extra 0x5c)
            //
            bytesOut = new StringBuffer();

            for (int i = 0; i < newByteStream.length; i++) {
                  bytesOut.append(Integer.toHexString(newByteStream[i] & 255));
                  bytesOut.append(" ");
            }

            System.out.println(bytesOut.toString());

            //
            // Now, insert and retrieve the value from the database
            //
            Connection sjisConn = null;
            Statement sjisStmt = null;

            try {
                  Properties props = new Properties();
                  props.put("useUnicode", "true");
                  props.put("characterEncoding", "SJIS");
                  sjisConn = getConnectionWithProps(props);

                  sjisStmt = sjisConn.createStatement();

                  this.rs = sjisStmt
                              .executeQuery("SHOW VARIABLES LIKE 'character_set%'");

                  while (this.rs.next()) {
                        System.out.println(this.rs.getString(1) + " = "
                                    + this.rs.getString(2));
                  }

                  sjisStmt.executeUpdate("DROP TABLE IF EXISTS sjisTest");

                  if (versionMeetsMinimum(4, 1)) {
                        sjisStmt
                                    .executeUpdate("CREATE TABLE sjisTest (field1 char(50)) DEFAULT CHARACTER SET SJIS");
                  } else {
                        sjisStmt
                                    .executeUpdate("CREATE TABLE sjisTest (field1 char(50))");
                  }

                  this.pstmt = sjisConn
                              .prepareStatement("INSERT INTO sjisTest VALUES (?)");
                  this.pstmt.setString(1, origString);
                  this.pstmt.executeUpdate();

                  this.rs = sjisStmt.executeQuery("SELECT * FROM sjisTest");

                  while (this.rs.next()) {
                        byte[] testValueAsBytes = this.rs.getBytes(1);

                        bytesOut = new StringBuffer();

                        for (int i = 0; i < testValueAsBytes.length; i++) {
                              bytesOut.append(Integer
                                          .toHexString(testValueAsBytes[i] & 255));
                              bytesOut.append(" ");
                        }

                        System.out.println("Value retrieved from database: "
                                    + bytesOut.toString());

                        String testValue = this.rs.getString(1);

                        assertTrue(testValue.equals(origString));
                  }
            } finally {
                  this.stmt.executeUpdate("DROP TABLE IF EXISTS sjisTest");
            }
      }

      /**
       * Tests that UTF-8 character conversion works correctly.
       * 
       * @throws Exception
       *             if any errors occur
       */
00546       public void testUtf8Encoding() throws Exception {
            Properties props = new Properties();
            props.put("characterEncoding", "UTF8");
            props.put("useUnicode", "true");
            props.put("jdbcCompliantTruncation", "false");

            Connection utfConn = DriverManager.getConnection(dbUrl, props);
            testConversionForString("UTF8", utfConn, "\u043c\u0438\u0445\u0438");
      }

      /**
       * DOCUMENT ME!
       * 
       * @throws Exception
       *             ...
       */
00562       public void testUtf8Encoding2() throws Exception {
            String field1 = "K��sel";
            String field2 = "B�b";
            byte[] field1AsBytes = field1.getBytes("utf-8");
            byte[] field2AsBytes = field2.getBytes("utf-8");

            Properties props = new Properties();
            props.put("characterEncoding", "UTF8");
            props.put("useUnicode", "true");

            Connection utfConn = DriverManager.getConnection(dbUrl, props);
            Statement utfStmt = utfConn.createStatement();

            try {
                  utfStmt.executeUpdate("DROP TABLE IF EXISTS testUtf8");
                  utfStmt
                              .executeUpdate("CREATE TABLE testUtf8 (field1 varchar(32), field2 varchar(32)) CHARACTER SET UTF8");
                  utfStmt.executeUpdate("INSERT INTO testUtf8 VALUES ('" + field1
                              + "','" + field2 + "')");

                  PreparedStatement pStmt = utfConn
                              .prepareStatement("INSERT INTO testUtf8 VALUES (?, ?)");
                  pStmt.setString(1, field1);
                  pStmt.setString(2, field2);
                  pStmt.executeUpdate();

                  ResultSet rs = utfStmt.executeQuery("SELECT * FROM testUtf8");
                  assertTrue(rs.next());

                  // Compare results stored using direct statement
                  // Compare to original string
                  assertTrue(field1.equals(rs.getString(1)));
                  assertTrue(field2.equals(rs.getString(2)));

                  // Compare byte-for-byte, ignoring encoding
                  assertTrue(bytesAreSame(field1AsBytes, rs.getBytes(1)));
                  assertTrue(bytesAreSame(field2AsBytes, rs.getBytes(2)));

                  assertTrue(rs.next());

                  // Compare to original string
                  assertTrue(field1.equals(rs.getString(1)));
                  assertTrue(field2.equals(rs.getString(2)));

                  // Compare byte-for-byte, ignoring encoding
                  assertTrue(bytesAreSame(field1AsBytes, rs.getBytes(1)));
                  assertTrue(bytesAreSame(field2AsBytes, rs.getBytes(2)));
            } finally {
                  utfStmt.executeUpdate("DROP TABLE IF EXISTS testUtf8");
            }
      }

      private boolean bytesAreSame(byte[] byte1, byte[] byte2) {
            if (byte1.length != byte2.length) {
                  return false;
            }

            for (int i = 0; i < byte1.length; i++) {
                  if (byte1[i] != byte2[i]) {
                        return false;
                  }
            }

            return true;
      }

      private void testConversionForString(String charsetName,
                  Connection convConn, String charsToTest) throws Exception {
            PreparedStatement pStmt = null;

            try {
                  this.stmt = convConn.createStatement();
                  this.stmt.executeUpdate("DROP TABLE IF EXISTS charConvTest");
                  this.stmt
                              .executeUpdate("CREATE TABLE charConvTest (field1 varchar(255))");
                  this.stmt.executeUpdate("INSERT INTO charConvTest VALUES ('"
                              + charsToTest + "')");
                  this.stmt.executeUpdate("DROP TABLE IF EXISTS charConvTest_"
                              + charsetName);

                  if (!versionMeetsMinimum(4, 1)) {
                        this.stmt.executeUpdate("CREATE TABLE charConvTest_"
                                    + charsetName + "(field1 CHAR(50))");
                  } else {
                        this.stmt.executeUpdate("CREATE TABLE charConvTest_"
                                    + charsetName + "(field1 CHAR(50) CHARACTER SET "
                                    + charsetName + ")");
                  }

                  this.stmt.executeUpdate("INSERT INTO charConvTest_" + charsetName
                              + " VALUES ('" + charsToTest + "')");
                  pStmt = convConn.prepareStatement("INSERT INTO charConvTest_"
                              + charsetName + " VALUES (?)");
                  pStmt.setString(1, charsToTest);
                  pStmt.executeUpdate();
                  this.rs = this.stmt.executeQuery("SELECT * FROM charConvTest_"
                              + charsetName);

                  boolean hadRows = false;

                  assertTrue(this.rs.next());

                  String testValue = this.rs.getString(1);
                  System.out.println(testValue);
                  assertTrue(testValue.equals(charsToTest));
            } finally {
                  this.stmt.executeUpdate("DROP TABLE IF EXISTS charConvTest_"
                              + charsetName);
            }
      }

      private void testConversionForString(String charsetName, String charsToTest)
                  throws Exception {
            testConversionForString(charsetName, this.conn, charsToTest);
      }

      /**
       * Tests fix for BUG#7601, '+' duplicated in fixDecimalExponent().
       * 
       * @throws Exception
       *             if the test fails
       */
00684       public void testBug7601() throws Exception {
            assertTrue("1.5E+7".equals(StringUtils.fixDecimalExponent("1.5E+7")));
            assertTrue("1.5E-7".equals(StringUtils.fixDecimalExponent("1.5E-7")));
            assertTrue("1.5E+7".equals(StringUtils.fixDecimalExponent("1.5E7")));
      }

      public void testBug11629() throws Exception {
            if (isRunningOnJdk131()) {
                  return;
            }

            PrintStream oldOut = System.out;
            PrintStream oldError = System.err;

            try {
                  ByteArrayOutputStream bOut = new ByteArrayOutputStream();
                  PrintStream newOut = new PrintStream(bOut);
                  System.setOut(newOut);

                  ByteArrayOutputStream bErr = new ByteArrayOutputStream();
                  PrintStream newErr = new PrintStream(bErr);
                  System.setErr(newErr);

                  Properties props = new Properties();
                  props.setProperty("characterEncoding", "utf8");
                  getConnectionWithProps(props).close();
                  String withExclaims = new String(bOut.toByteArray());
                  assertTrue(withExclaims.indexOf("!") == -1);
                  assertTrue(withExclaims.length() == 0); // to catch any other
                  // System.out.printlns()

                  withExclaims = new String(bErr.toByteArray());
                  assertTrue(withExclaims.indexOf("!") == -1);
                  assertTrue(withExclaims.length() == 0); // to catch any other
                  // System.err.printlns()
            } finally {
                  System.setOut(oldOut);
                  System.setErr(oldError);
            }
      }

      /**
       * Tests fix for BUG#11614 - StringUtils.getBytes() doesn't work when using
       * multibyte character encodings and a length in _characters_ is specified.
       * 
       * @throws Exception
       *             if the test fails.
       */
00732       public void testBug11614() throws Exception {
            if (isRunningOnJdk131()) {
                  return; // test not valid on JDK-1.3.1
            }

            if (versionMeetsMinimum(4, 1)) {
                  createTable(
                              "testBug11614",
                              "(`id` INTEGER UNSIGNED NOT NULL AUTO_INCREMENT,"
                                          + "`text` TEXT NOT NULL,"
                                          + "PRIMARY KEY(`id`)) CHARACTER SET utf8 COLLATE utf8_general_ci");

                  Properties props = new Properties();
                  props.setProperty("characterEncoding", "utf8");

                  Connection utf8Conn = null;

                  try {
                        utf8Conn = getConnectionWithProps(props);

                        utf8Conn
                                    .createStatement()
                                    .executeUpdate(
                                                "INSERT INTO testBug11614  (`id`,`text`) values (1,'')");
                        this.rs = utf8Conn.createStatement().executeQuery(
                                    "SELECT `text` FROM testBug11614 WHERE id=1");
                        assertTrue(this.rs.next());

                        Clob c = this.rs.getClob(1);
                        c.truncate(0);
                        int blockSize = 8192;
                        int sizeToTest = blockSize + 100;

                        StringBuffer blockBuf = new StringBuffer(sizeToTest);

                        for (int i = 0; i < sizeToTest; i++) {
                              blockBuf.append('\u00f6');
                        }

                        String valueToTest = blockBuf.toString();

                        c.setString(1, valueToTest);
                        this.pstmt = utf8Conn
                                    .prepareStatement("UPDATE testBug11614 SET `text` = ? WHERE id=1");
                        this.pstmt.setClob(1, c);
                        this.pstmt.executeUpdate();
                        this.pstmt.close();

                        String fromDatabase = getSingleIndexedValueWithQuery(utf8Conn,
                                    1, "SELECT `text` FROM testBug11614").toString();
                        assertEquals(valueToTest, fromDatabase);
                  } finally {
                        if (this.rs != null) {
                              this.rs.close();
                              this.rs = null;
                        }

                        if (this.pstmt != null) {
                              this.pstmt.close();

                              this.pstmt = null;
                        }

                        if (utf8Conn != null) {
                              utf8Conn.close();
                        }
                  }
            }
      }

      public void testCodePage1252() throws Exception {
            if (versionMeetsMinimum(4, 1, 0)) {
                  /*
                   * from
                   * ftp://ftp.unicode.org/Public/MAPPINGS/VENDORS/MICSFT/WINDOWS/CP1252.TXT
                   * 
                   * 0x80 0x20AC #EURO SIGN 0x81 #UNDEFINED 0x82 0x201A #SINGLE LOW-9
                   * QUOTATION MARK 0x83 0x0192 #LATIN SMALL LETTER F WITH HOOK 0x84
                   * 0x201E #DOUBLE LOW-9 QUOTATION MARK 0x85 0x2026 #HORIZONTAL
                   * ELLIPSIS 0x86 0x2020 #DAGGER 0x87 0x2021 #DOUBLE DAGGER 0x88
                   * 0x02C6 #MODIFIER LETTER CIRCUMFLEX ACCENT 0x89 0x2030 #PER MILLE
                   * SIGN 0x8A 0x0160 #LATIN CAPITAL LETTER S WITH CARON 0x8B 0x2039
                   * #SINGLE LEFT-POINTING ANGLE QUOTATION MARK 0x8C 0x0152 #LATIN
                   * CAPITAL LIGATURE OE 0x8D #UNDEFINED 0x8E 0x017D #LATIN CAPITAL
                   * LETTER Z WITH CARON 0x8F #UNDEFINED 0x90 #UNDEFINED
                   */
                  String codePage1252 = new String(new byte[] { (byte) 0x80,
                              (byte) 0x82, (byte) 0x83, (byte) 0x84, (byte) 0x85,
                              (byte) 0x86, (byte) 0x87, (byte) 0x88, (byte) 0x89,
                              (byte) 0x8a, (byte) 0x8b, (byte) 0x8c, (byte) 0x8e },
                              "Cp1252");

                  System.out.println(codePage1252);

                  Properties props = new Properties();
                  props.setProperty("characterEncoding", "Cp1252");
                  Connection cp1252Conn = getConnectionWithProps(props);
                  createTable("testCp1252",
                              "(field1 varchar(32) CHARACTER SET latin1)");
                  cp1252Conn.createStatement().executeUpdate(
                              "INSERT INTO testCp1252 VALUES ('" + codePage1252 + "')");
                  this.rs = cp1252Conn.createStatement().executeQuery(
                              "SELECT field1 FROM testCp1252");
                  this.rs.next();
                  assertEquals(this.rs.getString(1), codePage1252);
            }
      }

      /**
       * Tests fix for BUG#23645 - Some collations/character sets reported as "unknown"
       * (specifically cias variants of existing character sets), and inability to override
       * the detected server character set.
       * 
       * @throws Exception if the test fails.
       */
00847       public void testBug23645() throws Exception {
            if (versionMeetsMinimum(4, 1)) {
                  // Part of this isn't easily testable, hence the assertion in CharsetMapping
                  // that checks for mappings existing in both directions...
                  
                  // What we test here is the ability to override the character mapping
                  // when the server returns an "unknown" character encoding.
                  
                  String currentlyConfiguredCharacterSet = getSingleIndexedValueWithQuery(2, "SHOW VARIABLES LIKE 'character_set_connection'").toString();
                  System.out.println(currentlyConfiguredCharacterSet);
                  
                  String javaNameForMysqlName = CharsetMapping.getJavaEncodingForMysqlEncoding(currentlyConfiguredCharacterSet, null);
                  System.out.println(javaNameForMysqlName);
                  
                  for (int i = 1; i < CharsetMapping.INDEX_TO_CHARSET.length; i++) {
                        String possibleCharset = CharsetMapping.INDEX_TO_CHARSET[i];
                        
                        if (!javaNameForMysqlName.equals(possibleCharset)) {
                              System.out.println(possibleCharset);
                              
                              Properties props = new Properties();
                              props.setProperty("characterEncoding", possibleCharset);
                              props.setProperty("com.mysql.jdbc.faultInjection.serverCharsetIndex", "65535");
                              
                              Connection forcedCharConn = null;
                              
                              forcedCharConn = getConnectionWithProps(props);
                              
                              String forcedCharset = getSingleIndexedValueWithQuery(forcedCharConn, 2, "SHOW VARIABLES LIKE 'character_set_connection'").toString();
                              
                              System.out.println(forcedCharset);
                              
                              break;
                        }
                  }
                  
            }
      }
      
      /**
       * Tests fix for BUG#24840 - character encoding of "US-ASCII"
       * doesn't map correctly for 4.1 or newer
       * 
       * @throws Exception if the test fails.
       */
00892       public void testBug24840() throws Exception {
            Properties props = new Properties();
            props.setProperty("characterEncoding", "US-ASCII");
            
            getConnectionWithProps(props).close();
      }

      /**
       * Tests fix for BUG#25047 - StringUtils.indexOfIgnoreCaseRespectQuotes() isn't
       * case-insensitive on the first character of the target.
       * 
       * @throws Exception if the test fails.
       */
00905       public void testBug25047() throws Exception {
            assertEquals(26, StringUtils.indexOfIgnoreCaseRespectQuotes(0, "insert into Test (TestID) values (?)",
                        "VALUES", '`', false));
            assertEquals(26, StringUtils.indexOfIgnoreCaseRespectQuotes(0, "insert into Test (TestID) VALUES (?)",
                        "values", '`', false));
            
            assertEquals(StringUtils.indexOfIgnoreCaseRespectQuotes(0, 
                        "insert into Test (TestID) values (?)", "VALUES",'`', false),
                        StringUtils.indexOfIgnoreCaseRespectQuotes(0, 
                                    "insert into Test (TestID) VALUES (?)",  "VALUES",'`', false));
            assertEquals(StringUtils.indexOfIgnoreCaseRespectQuotes(0,  
                        "insert into Test (TestID) values (?)", "values", '`', false),
                        StringUtils.indexOfIgnoreCaseRespectQuotes(0, 
                                    "insert into Test (TestID) VALUES (?)", "values", '`', false));
      }
}

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