/*
* ====================================================================
* 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.impl.io.ContentLengthInputStream;
import org.apache.http.mockup.SessionInputBufferMockup;
import org.apache.http.util.EncodingUtils;
import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;
public class TestContentLengthInputStream extends TestCase {
public TestContentLengthInputStream(String testName) {
super(testName);
}
// ------------------------------------------------------- TestCase Methods
public static Test suite() {
return new TestSuite(TestContentLengthInputStream.class);
}
// ------------------------------------------------------------------- Main
public static void main(String args[]) {
String[] testCaseName = { TestContentLengthInputStream.class.getName() };
junit.textui.TestRunner.main(testCaseName);
}
private static final String CONTENT_CHARSET = "ISO-8859-1";
public void testConstructors() throws Exception {
new ContentLengthInputStream(new SessionInputBufferMockup(new byte[] {}), 10);
try {
new ContentLengthInputStream(null, 10);
fail("IllegalArgumentException should have been thrown");
} catch (IllegalArgumentException ex) {
// expected
}
try {
new ContentLengthInputStream(new SessionInputBufferMockup(new byte[] {}), -10);
fail("IllegalArgumentException should have been thrown");
} catch (IllegalArgumentException ex) {
// expected
}
}
public void testBasics() throws IOException {
String correct = "1234567890123456";
InputStream in = new ContentLengthInputStream(new SessionInputBufferMockup(
EncodingUtils.getBytes(correct, CONTENT_CHARSET)), 10L);
ByteArrayOutputStream out = new ByteArrayOutputStream();
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);
String result = EncodingUtils.getString(out.toByteArray(), CONTENT_CHARSET);
assertEquals(result, "1234567890");
}
public void testSkip() throws IOException {
InputStream in = new ContentLengthInputStream(new SessionInputBufferMockup(new byte[20]), 10L);
assertEquals(10, in.skip(10));
assertTrue(in.read() == -1);
in = new ContentLengthInputStream(new SessionInputBufferMockup(new byte[20]), 10L);
in.read();
assertEquals(9, in.skip(10));
assertTrue(in.read() == -1);
in = new ContentLengthInputStream(new SessionInputBufferMockup(new byte[20]), 2L);
in.read();
in.read();
assertTrue(in.skip(10) <= 0);
assertTrue(in.skip(-1) == 0);
assertTrue(in.read() == -1);
in = new ContentLengthInputStream(new SessionInputBufferMockup(new byte[2]), 4L);
in.read();
assertTrue(in.skip(2) == 1);
in = new ContentLengthInputStream(new SessionInputBufferMockup(new byte[20]), 10L);
assertEquals(5,in.skip(5));
assertEquals(5, in.read(new byte[20]));
}
public void testClose() throws IOException {
String correct = "1234567890123456";
InputStream in = new ContentLengthInputStream(new SessionInputBufferMockup(
EncodingUtils.getBytes(correct, CONTENT_CHARSET)), 10L);
in.close();
in.close();
try {
in.read();
fail("IOException should have been thrown");
} catch (IOException ex) {
// expected
}
byte[] tmp = new byte[10];
try {
in.read(tmp);
fail("IOException should have been thrown");
} catch (IOException ex) {
// expected
}
try {
in.read(tmp, 0, tmp.length);
fail("IOException should have been thrown");
} catch (IOException ex) {
// expected
}
}
}