/*
* ====================================================================
* 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.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*
*/
package org.apache.http.impl.io;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import org.apache.http.ConnectionClosedException;
import org.apache.http.Consts;
import org.apache.http.impl.SessionInputBufferMock;
import org.apache.http.io.SessionInputBuffer;
import org.junit.Assert;
import org.junit.Test;
public class TestContentLengthInputStream {
@Test
public void testConstructors() throws Exception {
final ContentLengthInputStream in = new ContentLengthInputStream(
new SessionInputBufferMock(new byte[] {}), 0);
in.close();
try {
new ContentLengthInputStream(null, 10);
Assert.fail("IllegalArgumentException should have been thrown");
} catch (final IllegalArgumentException ex) {
// expected
}
try {
new ContentLengthInputStream(new SessionInputBufferMock(new byte[] {}), -10);
Assert.fail("IllegalArgumentException should have been thrown");
} catch (final IllegalArgumentException ex) {
// expected
}
}
@Test
public void testBasics() throws IOException {
final String correct = "1234567890123456";
final InputStream in = new ContentLengthInputStream(
new SessionInputBufferMock(correct, Consts.ISO_8859_1), 10L);
final ByteArrayOutputStream out = new ByteArrayOutputStream();
final byte[] buffer = new byte[50];
int len = in.read(buffer, 0, 2);
out.write(buffer, 0, len);
len = in.read(buffer);
out.write(buffer, 0, len);
final String result = new String(out.toByteArray(), Consts.ISO_8859_1);
Assert.assertEquals(result, "1234567890");
in.close();
}
@Test
public void testSkip() throws IOException {
InputStream in = new ContentLengthInputStream(new SessionInputBufferMock(new byte[20]), 10L);
Assert.assertEquals(10, in.skip(10));
Assert.assertTrue(in.read() == -1);
in = new ContentLengthInputStream(new SessionInputBufferMock(new byte[20]), 10L);
in.read();
Assert.assertEquals(9, in.skip(10));
Assert.assertTrue(in.read() == -1);
in.close();
in = new ContentLengthInputStream(new SessionInputBufferMock(new byte[20]), 2L);
in.read();
in.read();
Assert.assertTrue(in.skip(10) <= 0);
Assert.assertTrue(in.skip(-1) == 0);
Assert.assertTrue(in.read() == -1);
in.close();
in = new ContentLengthInputStream(new SessionInputBufferMock(new byte[20]), 10L);
Assert.assertEquals(5,in.skip(5));
Assert.assertEquals(5, in.read(new byte[20]));
in.close();
}
@Test
public void testAvailable() throws IOException {
final InputStream in = new ContentLengthInputStream(
new SessionInputBufferMock(new byte[] {1, 2, 3}), 3L);
Assert.assertEquals(0, in.available());
in.read();
Assert.assertEquals(2, in.available());
in.close();
}
@Test
public void testClose() throws IOException {
final String correct = "1234567890123456-";
final SessionInputBuffer inbuffer = new SessionInputBufferMock(correct, Consts.ISO_8859_1);
final InputStream in = new ContentLengthInputStream(inbuffer, 16L);
in.close();
in.close();
try {
in.read();
Assert.fail("IOException should have been thrown");
} catch (final IOException ex) {
// expected
}
final byte[] tmp = new byte[10];
try {
in.read(tmp);
Assert.fail("IOException should have been thrown");
} catch (final IOException ex) {
// expected
}
try {
in.read(tmp, 0, tmp.length);
Assert.fail("IOException should have been thrown");
} catch (final IOException ex) {
// expected
}
Assert.assertEquals('-', inbuffer.read());
}
@Test
public void testTruncatedContent() throws IOException {
final String correct = "1234567890123456";
final SessionInputBuffer inbuffer = new SessionInputBufferMock(correct, Consts.ISO_8859_1);
final InputStream in = new ContentLengthInputStream(inbuffer, 32L);
final byte[] tmp = new byte[32];
final int byteRead = in.read(tmp);
Assert.assertEquals(16, byteRead);
try {
in.read(tmp);
Assert.fail("ConnectionClosedException should have been closed");
} catch (final ConnectionClosedException ex) {
}
try {
in.read();
Assert.fail("ConnectionClosedException should have been closed");
} catch (final ConnectionClosedException ex) {
}
try {
in.close();
Assert.fail("ConnectionClosedException should have been closed");
} catch (final ConnectionClosedException ex) {
}
}
}