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// ========================================================================
// Copyright (c) Webtide LLC
// ------------------------------------------------------------------------
// All rights reserved. This program and the accompanying materials
// are made available under the terms of the Eclipse Public License v1.0
// and Apache License v2.0 which accompanies this distribution.
//
// The Eclipse Public License is available at
// http://www.eclipse.org/legal/epl-v10.html
//
// The Apache License v2.0 is available at
// http://www.apache.org/licenses/LICENSE-2.0.txt
//
// You may elect to redistribute this code under either of these licenses.
// ========================================================================
package org.eclipse.jetty.server;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;
import java.util.List;
import java.util.Vector;
import org.junit.Test;
public class InclusiveByteRangeTest
{
@SuppressWarnings("unchecked")
private void assertInvalidRange(String rangeString)
{
Vector strings = new Vector();
strings.add(rangeString);
List ranges = InclusiveByteRange.satisfiableRanges(strings.elements(),200);
assertNull("Invalid Range [" + rangeString + "] should result in no satisfiable ranges",ranges);
}
private void assertRange(String msg, int expectedFirst, int expectedLast, int size, InclusiveByteRange actualRange)
{
assertEquals(msg + " - first",expectedFirst,actualRange.getFirst(size));
assertEquals(msg + " - last",expectedLast,actualRange.getLast(size));
String expectedHeader = String.format("bytes %d-%d/%d",expectedFirst,expectedLast,size);
assertEquals(msg + " - header range string",expectedHeader,actualRange.toHeaderRangeString(size));
}
private void assertSimpleRange(int expectedFirst, int expectedLast, String rangeId, int size)
{
InclusiveByteRange range = parseRange(rangeId,size);
assertEquals("Range [" + rangeId + "] - first",expectedFirst,range.getFirst(size));
assertEquals("Range [" + rangeId + "] - last",expectedLast,range.getLast(size));
String expectedHeader = String.format("bytes %d-%d/%d",expectedFirst,expectedLast,size);
assertEquals("Range [" + rangeId + "] - header range string",expectedHeader,range.toHeaderRangeString(size));
}
@SuppressWarnings("unchecked")
private InclusiveByteRange parseRange(String rangeString, int size)
{
Vector strings = new Vector();
strings.add(rangeString);
List ranges = InclusiveByteRange.satisfiableRanges(strings.elements(),size);
assertNotNull("Satisfiable Ranges should not be null",ranges);
assertEquals("Satisfiable Ranges of [" + rangeString + "] count",1,ranges.size());
return (InclusiveByteRange)ranges.get(0);
}
@SuppressWarnings("unchecked")
private List<InclusiveByteRange> parseRanges(String rangeString, int size)
{
Vector strings = new Vector();
strings.add(rangeString);
List<InclusiveByteRange> ranges;
ranges = InclusiveByteRange.satisfiableRanges(strings.elements(),size);
assertNotNull("Satisfiable Ranges should not be null",ranges);
return ranges;
}
@Test
public void testHeader416RangeString()
{
assertEquals("416 Header on size 100","bytes */100",InclusiveByteRange.to416HeaderRangeString(100));
assertEquals("416 Header on size 123456789","bytes */123456789",InclusiveByteRange.to416HeaderRangeString(123456789));
}
@Test
public void testInvalidRanges()
{
// Invalid if parsing "Range" header
assertInvalidRange("bytes=a-b"); // letters invalid
assertInvalidRange("byte=10-3"); // key is bad
assertInvalidRange("onceuponatime=5-10"); // key is bad
assertInvalidRange("bytes=300-310"); // outside of size (200)
}
/**
* Ranges have a multiple ranges, all absolutely defined.
*/
@Test
public void testMultipleAbsoluteRanges()
{
int size = 50;
String rangeString;
rangeString = "bytes=5-20,35-65";
List<InclusiveByteRange> ranges = parseRanges(rangeString,size);
assertEquals("Satisfiable Ranges of [" + rangeString + "] count",2,ranges.size());
assertRange("Range [" + rangeString + "]",5,20,size,ranges.get(0));
assertRange("Range [" + rangeString + "]",35,49,size,ranges.get(1));
}
/**
* Range definition has a range that is clipped due to the size.
*/
@Test
public void testMultipleRangesClipped()
{
String rangeString;
rangeString = "bytes=5-20,35-65,-5";
List<InclusiveByteRange> ranges = parseRanges(rangeString,50);
assertEquals("Satisfiable Ranges of [" + rangeString + "] count",3,ranges.size());
assertRange("Range [" + rangeString + "]",5,20,50,ranges.get(0));
assertRange("Range [" + rangeString + "]",35,49,50,ranges.get(1));
assertRange("Range [" + rangeString + "]",45,49,50,ranges.get(2));
}
@Test
public void testMultipleRangesOverlapping()
{
String rangeString;
rangeString = "bytes=5-20,15-25";
List<InclusiveByteRange> ranges = parseRanges(rangeString,200);
assertEquals("Satisfiable Ranges of [" + rangeString + "] count",2,ranges.size());
assertRange("Range [" + rangeString + "]",5,20,200,ranges.get(0));
assertRange("Range [" + rangeString + "]",15,25,200,ranges.get(1));
}
@Test
public void testMultipleRangesSplit()
{
String rangeString;
rangeString = "bytes=5-10,15-20";
List<InclusiveByteRange> ranges = parseRanges(rangeString,200);
assertEquals("Satisfiable Ranges of [" + rangeString + "] count",2,ranges.size());
assertRange("Range [" + rangeString + "]",5,10,200,ranges.get(0));
assertRange("Range [" + rangeString + "]",15,20,200,ranges.get(1));
}
@Test
public void testSimpleRange()
{
assertSimpleRange(5,10,"bytes=5-10",200);
assertSimpleRange(195,199,"bytes=-5",200);
assertSimpleRange(50,119,"bytes=50-150",120);
assertSimpleRange(50,119,"bytes=50-",120);
}
}
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