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package org.postgresql.test.jdbc2;
import junit.framework.*;
import org.postgresql.core.Encoding;
import java.io.*;
/**
* Tests for the Encoding class.
*
* $Id: EncodingTest.java,v 1.1 2001/07/21 18:52:11 momjian Exp $
*/
public class EncodingTest extends TestCase {
public EncodingTest(String name) {
super(name);
}
public void testCreation() throws Exception {
Encoding encoding;
encoding = Encoding.getEncoding("UNICODE", null);
assertEquals("UTF", encoding.name().substring(0, 3).toUpperCase());
encoding = Encoding.getEncoding("SQL_ASCII", null);
assert(encoding.name().toUpperCase().indexOf("ASCII") != -1);
assertEquals("When encoding is unknown the default encoding should be used",
Encoding.defaultEncoding(),
Encoding.getEncoding("UNKNOWN", null));
encoding = Encoding.getEncoding("SQL_ASCII", "utf-8");
assert("Encoding passed in by the user should be preferred",
encoding.name().toUpperCase().indexOf("UTF") != -1);
}
public void testTransformations() throws Exception {
Encoding encoding = Encoding.getEncoding("UNICODE", null);
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.getEncoding("SQL_ASCII", null);
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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