/*
* 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 static org.junit.Assert.assertEquals;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.util.concurrent.atomic.AtomicInteger;
import org.junit.Test;
public class ChunkedWriterTest {
@Test
public void write_four_chunks() throws Exception {
final AtomicInteger numWrites = new AtomicInteger();
OutputStreamWriter osw = getOutputStreamWriter(numWrites);
ChunkedWriter chunked = new ChunkedWriter(osw, 10);
chunked.write("0123456789012345678901234567891".toCharArray());
chunked.flush();
assertEquals(4, numWrites.get());
chunked.close();
}
@Test
public void write_two_chunks_default_constructor() throws Exception {
final AtomicInteger numWrites = new AtomicInteger();
OutputStreamWriter osw = getOutputStreamWriter(numWrites);
ChunkedWriter chunked = new ChunkedWriter(osw);
chunked.write(new char[1024 * 4 + 1]);
chunked.flush();
assertEquals(2, numWrites.get());
chunked.close();
}
private OutputStreamWriter getOutputStreamWriter(final AtomicInteger numWrites) {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
return new OutputStreamWriter(baos) {
@Override
public void write(char[] cbuf, int off, int len) throws IOException {
numWrites.incrementAndGet();
super.write(cbuf, off, len);
}
};
}
@Test(expected = IllegalArgumentException.class)
public void negative_chunksize_not_permitted() throws Exception {
(new ChunkedWriter(new OutputStreamWriter(new ByteArrayOutputStream()), 0)).close();;
}
}