/*
* 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 java.io.File;
import java.io.FileOutputStream;
import java.io.FileWriter;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.io.Writer;
import java.nio.charset.Charset;
import java.util.Map;
import junit.framework.AssertionFailedError;
import org.apache.commons.io.IOUtils;
import org.apache.commons.io.testtools.FileBasedTestCase;
/**
* Tests that the encoding is actually set and used.
*
* @version $Revision: 609864 $ $Date: 2008-01-08 04:20:00 +0000 (Tue, 08 Jan 2008) $
*/
public class FileWriterWithEncodingTest extends FileBasedTestCase {
private String defaultEncoding;
private File file1;
private File file2;
private String textContent;
public FileWriterWithEncodingTest(String name) {
super(name);
}
public void setUp() {
File encodingFinder = new File(getTestDirectory(), "finder.txt");
OutputStreamWriter out = null;
try {
out = new OutputStreamWriter(new FileOutputStream(encodingFinder));
defaultEncoding = out.getEncoding();
} catch (IOException ex) {
throw new RuntimeException(ex.getMessage());
} finally {
IOUtils.closeQuietly(out);
}
file1 = new File(getTestDirectory(), "testfile1.txt");
file2 = new File(getTestDirectory(), "testfile2.txt");
char[] arr = new char[1024];
for (int i = 0; i < arr.length; i++) {
arr[i] = (char) i;
}
textContent = new String(arr);
}
public void tearDown() {
defaultEncoding = null;
file1.delete();
file2.delete();
textContent = null;
}
//-----------------------------------------------------------------------
public void testSameEncoding() throws Exception {
FileWriter fw1 = null;
FileWriterWithEncoding fw2 = null;
try {
fw1 = new FileWriter(file1); // default encoding
fw2 = new FileWriterWithEncoding(file2, defaultEncoding);
assertEquals(true, file1.exists());
assertEquals(true, file2.exists());
fw1.write(textContent);
fw2.write(textContent);
fw1.flush();
fw2.flush();
checkFile(file1, file2);
} finally {
IOUtils.closeQuietly(fw1);
IOUtils.closeQuietly(fw2);
}
assertEquals(true, file1.exists());
assertEquals(true, file2.exists());
}
public void testDifferentEncoding() throws Exception {
Map map = Charset.availableCharsets();
if (map.containsKey("UTF-16BE")) {
FileWriter fw1 = null;
FileWriterWithEncoding fw2 = null;
try {
fw1 = new FileWriter(file1); // default encoding
fw2 = new FileWriterWithEncoding(file2, defaultEncoding);
assertEquals(true, file1.exists());
assertEquals(true, file2.exists());
fw1.write(textContent);
fw2.write(textContent);
fw1.flush();
fw2.flush();
try {
checkFile(file1, file2);
fail();
} catch (AssertionFailedError ex) {
// success
}
} finally {
IOUtils.closeQuietly(fw1);
IOUtils.closeQuietly(fw2);
}
assertEquals(true, file1.exists());
assertEquals(true, file2.exists());
}
if (map.containsKey("UTF-16LE")) {
FileWriter fw1 = null;
FileWriterWithEncoding fw2 = null;
try {
fw1 = new FileWriter(file1); // default encoding
fw2 = new FileWriterWithEncoding(file2, defaultEncoding);
assertEquals(true, file1.exists());
assertEquals(true, file2.exists());
fw1.write(textContent);
fw2.write(textContent);
fw1.flush();
fw2.flush();
try {
checkFile(file1, file2);
fail();
} catch (AssertionFailedError ex) {
// success
}
} finally {
IOUtils.closeQuietly(fw1);
IOUtils.closeQuietly(fw2);
}
assertEquals(true, file1.exists());
assertEquals(true, file2.exists());
}
}
//-----------------------------------------------------------------------
public void testConstructor_File_encoding_badEncoding() throws IOException {
Writer writer = null;
try {
writer = new FileWriterWithEncoding(file1, "BAD-ENCODE");
fail();
} catch (IOException ex) {
// expected
assertEquals(false, file1.exists());
} finally {
IOUtils.closeQuietly(writer);
}
assertEquals(false, file1.exists());
}
//-----------------------------------------------------------------------
public void testConstructor_File_directory() throws IOException {
Writer writer = null;
try {
writer = new FileWriterWithEncoding(getTestDirectory(), defaultEncoding);
fail();
} catch (IOException ex) {
// expected
assertEquals(false, file1.exists());
} finally {
IOUtils.closeQuietly(writer);
}
assertEquals(false, file1.exists());
}
//-----------------------------------------------------------------------
public void testConstructor_File_nullFile() throws IOException {
Writer writer = null;
try {
writer = new FileWriterWithEncoding((File) null, defaultEncoding);
fail();
} catch (NullPointerException ex) {
// expected
assertEquals(false, file1.exists());
} finally {
IOUtils.closeQuietly(writer);
}
assertEquals(false, file1.exists());
}
//-----------------------------------------------------------------------
public void testConstructor_fileName_nullFile() throws IOException {
Writer writer = null;
try {
writer = new FileWriterWithEncoding((String) null, defaultEncoding);
fail();
} catch (NullPointerException ex) {
// expected
assertEquals(false, file1.exists());
} finally {
IOUtils.closeQuietly(writer);
}
assertEquals(false, file1.exists());
}
}