/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.commons.io.output;
import org.junit.Test;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.util.Arrays;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
/**
* @version $Id$
*/
public class XmlStreamWriterTest {
/** french */
private static final String TEXT_LATIN1 = "eacute: \u00E9";
/** greek */
private static final String TEXT_LATIN7 = "alpha: \u03B1";
/** euro support */
private static final String TEXT_LATIN15 = "euro: \u20AC";
/** japanese */
private static final String TEXT_EUC_JP = "hiragana A: \u3042";
/** Unicode: support everything */
private static final String TEXT_UNICODE = TEXT_LATIN1 + ", " + TEXT_LATIN7
+ ", " + TEXT_LATIN15 + ", " + TEXT_EUC_JP;
private static String createXmlContent(final String text, final String encoding) {
String xmlDecl = "<?xml version=\"1.0\"?>";
if (encoding != null) {
xmlDecl = "<?xml version=\"1.0\" encoding=\"" + encoding + "\"?>";
}
return xmlDecl + "\n<text>" + text + "</text>";
}
private static void checkXmlContent(final String xml, final String encoding, final String defaultEncoding)
throws IOException {
final ByteArrayOutputStream out = new ByteArrayOutputStream();
final XmlStreamWriter writer = new XmlStreamWriter(out, defaultEncoding);
writer.write(xml);
writer.close();
final byte[] xmlContent = out.toByteArray();
assertEquals(encoding, writer.getEncoding());
assertTrue(Arrays.equals(xml.getBytes(encoding), xmlContent));
}
private static void checkXmlWriter(final String text, final String encoding)
throws IOException {
checkXmlWriter(text, encoding, null);
}
private static void checkXmlWriter(final String text, final String encoding, final String defaultEncoding)
throws IOException {
final String xml = createXmlContent(text, encoding);
String effectiveEncoding = encoding;
if (effectiveEncoding == null) {
effectiveEncoding = defaultEncoding == null ? "UTF-8" : defaultEncoding;
}
checkXmlContent(xml, effectiveEncoding, defaultEncoding);
}
@Test
public void testNoXmlHeader() throws IOException {
final String xml = "<text>text with no XML header</text>";
checkXmlContent(xml, "UTF-8", null);
}
@Test
public void testEmpty() throws IOException {
final ByteArrayOutputStream out = new ByteArrayOutputStream();
final XmlStreamWriter writer = new XmlStreamWriter(out);
writer.flush();
writer.write("");
writer.flush();
writer.write(".");
writer.flush();
writer.close();
}
@Test
public void testDefaultEncoding() throws IOException {
checkXmlWriter(TEXT_UNICODE, null, null);
checkXmlWriter(TEXT_UNICODE, null, "UTF-8");
checkXmlWriter(TEXT_UNICODE, null, "UTF-16");
checkXmlWriter(TEXT_UNICODE, null, "UTF-16BE");
checkXmlWriter(TEXT_UNICODE, null, "ISO-8859-1");
}
@Test
public void testUTF8Encoding() throws IOException {
checkXmlWriter(TEXT_UNICODE, "UTF-8");
}
@Test
public void testUTF16Encoding() throws IOException {
checkXmlWriter(TEXT_UNICODE, "UTF-16");
}
@Test
public void testUTF16BEEncoding() throws IOException {
checkXmlWriter(TEXT_UNICODE, "UTF-16BE");
}
@Test
public void testUTF16LEEncoding() throws IOException {
checkXmlWriter(TEXT_UNICODE, "UTF-16LE");
}
@Test
public void testLatin1Encoding() throws IOException {
checkXmlWriter(TEXT_LATIN1, "ISO-8859-1");
}
@Test
public void testLatin7Encoding() throws IOException {
checkXmlWriter(TEXT_LATIN7, "ISO-8859-7");
}
@Test
public void testLatin15Encoding() throws IOException {
checkXmlWriter(TEXT_LATIN15, "ISO-8859-15");
}
@Test
public void testEUC_JPEncoding() throws IOException {
checkXmlWriter(TEXT_EUC_JP, "EUC-JP");
}
@Test
public void testEBCDICEncoding() throws IOException {
checkXmlWriter("simple text in EBCDIC", "CP1047");
}
}