/*
* 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.input;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import junit.framework.TestCase;
/**
* JUnit Test Case for {@link AutoCloseInputStream}.
*/
public class AutoCloseInputStreamTest extends TestCase {
private byte[] data;
private InputStream stream;
private boolean closed;
protected void setUp() {
data = new byte[] { 'x', 'y', 'z' };
stream = new AutoCloseInputStream(new ByteArrayInputStream(data) {
public void close() {
closed = true;
}
});
closed = false;
}
/**
* Test the <code>close()</code> method.
*/
public void testClose() throws IOException {
stream.close();
assertTrue("closed", closed);
assertEquals("read()", -1, stream.read());
}
/**
* Test the <code>read()</code> method.
*/
public void testRead() throws IOException {
for (int i = 0; i < data.length; i++) {
assertEquals("read()", data[i], stream.read());
assertFalse("closed", closed);
}
assertEquals("read()", -1, stream.read());
assertTrue("closed", closed);
}
/**
* Test the <code>read(b)</code> method.
*/
public void testReadBuffer() throws IOException {
byte[] b = new byte[data.length * 2];
int total = 0;
for (int n = 0; n != -1; n = stream.read(b)) {
assertFalse("closed", closed);
for (int i = 0; i < n; i++) {
assertEquals("read(b)", data[total + i], b[i]);
}
total += n;
}
assertEquals("read(b)", data.length, total);
assertTrue("closed", closed);
assertEquals("read(b)", -1, stream.read(b));
}
/**
* Test the <code>read(b, off, len)</code> method.
*/
public void testReadBufferOffsetLength() throws IOException {
byte[] b = new byte[data.length * 2];
int total = 0;
for (int n = 0; n != -1; n = stream.read(b, total, b.length - total)) {
assertFalse("closed", closed);
total += n;
}
assertEquals("read(b, off, len)", data.length, total);
for (int i = 0; i < data.length; i++) {
assertEquals("read(b, off, len)", data[i], b[i]);
}
assertTrue("closed", closed);
assertEquals("read(b, off, len)", -1, stream.read(b, 0, b.length));
}
}