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/*-------------------------------------------------------------------------
*
* Copyright (c) 2004-2008, PostgreSQL Global Development Group
*
* IDENTIFICATION
* $PostgreSQL: pgjdbc/org/postgresql/test/jdbc2/EncodingTest.java,v 1.11 2008/02/19 06:12:24 jurka Exp $
*
*-------------------------------------------------------------------------
*/
package org.postgresql.test.jdbc2;
import junit.framework.*;
import org.postgresql.core.Encoding;
import java.io.*;
import java.util.Locale;
/*
* Tests for the Encoding class.
*
*/
public class EncodingTest extends TestCase
{
public EncodingTest(String name)
{
super(name);
}
public void testCreation() throws Exception
{
Encoding encoding;
encoding = Encoding.getDatabaseEncoding("UNICODE");
assertEquals("UTF", encoding.name().substring(0, 3).toUpperCase(Locale.US));
encoding = Encoding.getDatabaseEncoding("SQL_ASCII");
assertTrue(encoding.name().toUpperCase(Locale.US).indexOf("ASCII") != -1);
assertEquals("When encoding is unknown the default encoding should be used",
Encoding.defaultEncoding(),
Encoding.getDatabaseEncoding("UNKNOWN"));
}
public void testTransformations() throws Exception
{
Encoding encoding = Encoding.getDatabaseEncoding("UNICODE");
assertEquals("ab", encoding.decode(new byte[] { 97, 98 }));
assertEquals(2, encoding.encode("ab").length);
assertEquals(97, encoding.encode("a")[0]);
assertEquals(98, encoding.encode("b")[0]);
encoding = Encoding.defaultEncoding();
assertEquals("a".getBytes()[0], encoding.encode("a")[0]);
assertEquals(new String(new byte[] { 97 }),
encoding.decode(new byte[] { 97 }));
}
public void testReader() throws Exception
{
Encoding encoding = Encoding.getDatabaseEncoding("SQL_ASCII");
InputStream stream = new ByteArrayInputStream(new byte[] { 97, 98 });
Reader reader = encoding.getDecodingReader(stream);
assertEquals(97, reader.read());
assertEquals(98, reader.read());
assertEquals( -1, reader.read());
}
}
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