public void testDeliverVeryManyMessages()
{
Console.WriteLine("--> deliver very many messages");
string[] teststrings = new string[10000];
for (int i = 0; i < teststrings.Length; i++)
{
teststrings[i] = "Test string " + i;
}
SCTPStream s = mockStream();
SortedArray <DataChunk> stash = new SortedArray <DataChunk>();
List <string> result = new List <string>();
ushort mo = (ushort)0;
foreach (string ts in teststrings)
{
DataChunk single = new DataChunk();
single.setTsn(_tsn++);
single.setsSeqNo((int)mo++);
single.setData(ts.getBytes());
single.setPpid(DataChunk.WEBRTCstring);
single.setFlags(DataChunk.SINGLEFLAG);
stash.Add(single);
result.Add(ts);
}
SCTPStreamListener l = new CheckingStreamListener(result);
OrderedStreamBehaviour instance = new OrderedStreamBehaviour();
instance.deliver(s, stash, l);
}
public void testDeliverTwo()
{
Console.WriteLine("--> deliver two");
SCTPStream s = mockStream();
SortedArray <DataChunk> stash = new SortedArray <DataChunk>();
string[] teststrings = new string[] { "Test string A", "Test string B" };
List <string> result = new List <string>();
int n = 0;
foreach (string ts in teststrings)
{
DataChunk single = new DataChunk();
single.setTsn(_tsn++);
single.setsSeqNo(n++);
single.setData(ts.getBytes());
single.setPpid(DataChunk.WEBRTCstring);
single.setFlags(DataChunk.SINGLEFLAG);
stash.Add(single);
result.Add(ts);
}
SCTPStreamListener l = new CheckingStreamListener(result);
OrderedStreamBehaviour instance = new OrderedStreamBehaviour();
instance.deliver(s, stash, l);
int remain = result.Count;
Assert.AreEqual(remain, 0);
}
public void testDeliverSingle()
{
Console.WriteLine("--> deliver single");
SCTPStream s = mockStream();
SortedArray <DataChunk> stash = new SortedArray <DataChunk>();
DataChunk single = new DataChunk();
string teststring = "Test string";
single.setData(teststring.getBytes());
single.setPpid(DataChunk.WEBRTCstring);
single.setFlags(DataChunk.SINGLEFLAG);
single.setTsn(_tsn++);
single.setsSeqNo(0);
stash.Add(single);
List <string> result = new List <string>();
result.Add(teststring);
SCTPStreamListener l = new CheckingStreamListener(result);
OrderedStreamBehaviour instance = new OrderedStreamBehaviour();
instance.deliver(s, stash, l);
int remain = result.Count;
Assert.AreEqual(remain, 0);
}
void oneMissingPartMessages(string[] teststrings, string es, int ec)
{
SCTPStream s = mockStream();
SortedArray <DataChunk> stash = new SortedArray <DataChunk>();
List <string> result = new List <string>();
int n = 0;
int expectedToRemain = 0;
bool skip = false;
foreach (string ts in teststrings)
{
for (int i = 0; i < ts.Length; i++)
{
DataChunk single = new DataChunk();
single.setTsn(_tsn++);
single.setsSeqNo(n);
string letter = ts.Substring(i, 1);
single.setData(letter.getBytes());
single.setPpid(DataChunk.WEBRTCstring);
if (i == 0)
{
single.setFlags(DataChunk.BEGINFLAG);
}
else if (i == ts.Length - 1)
{
single.setFlags(DataChunk.ENDFLAG);
}
if ((ec != i) || !ts.Equals(es))
{
stash.Add(single);
}
}
if (ts.Equals(es))
{
skip = true;
}
if (skip)
{
expectedToRemain++;
}
result.Add(ts);
n++;
}
SCTPStreamListener l = new CheckingStreamListener(result);
OrderedStreamBehaviour instance = new OrderedStreamBehaviour();
instance.deliver(s, stash, l);
int remain = result.Count;
//Console.WriteLine("expected:" + expectedToRemain + " remain:" + remain);
Assert.AreEqual(remain, expectedToRemain);
}
public void deliverUnorderedPackets(int seed)
{
Random rand = new Random(seed); // deliberately not crypto random so test is repeatable
// Console.WriteLine("seed = "+seed);
string[] teststrings = { "Test string A, ", "Test string B ", "and Test string C" };
SCTPStream s = mockStream();
List <string> result = new List <string>();
int n = 0;
List <DataChunk> all = new List <DataChunk>();
foreach (string ts in teststrings)
{
for (int i = 0; i < ts.Length; i++)
{
DataChunk single = new DataChunk();
single.setTsn(_tsn++);
single.setsSeqNo(n);
string letter = ts.Substring(i, 1);
single.setData(letter.getBytes());
single.setPpid(DataChunk.WEBRTCstring);
if (i == 0)
{
single.setFlags(DataChunk.BEGINFLAG);
}
else if (i == ts.Length - 1)
{
single.setFlags(DataChunk.ENDFLAG);
}
all.Add(single);
}
result.Add(ts);
n++;
}
SCTPStreamListener l = new CheckingStreamListener(result);
OrderedStreamBehaviour instance = new OrderedStreamBehaviour();
SortedArray <DataChunk> stash = new SortedArray <DataChunk>();
while (all.Count > 0)
{
int v = rand.Next(all.Count);
DataChunk c = all[v];
all.RemoveAt(v);
stash.Add(c);
instance.deliver(s, stash, l);
}
int remain = result.Count;
Assert.AreEqual(remain, 0);
}
void multiPartMessage(string[] teststrings)
{
SCTPStream s = mockStream();
SortedArray <DataChunk> stash = new SortedArray <DataChunk>();
List <string> result = new List <string>();
int n = 0;
StringBuilder bs = new StringBuilder();
foreach (string ts in teststrings)
{
DataChunk single = new DataChunk();
single.setTsn(_tsn++);
single.setsSeqNo(0);
single.setData(ts.getBytes());
single.setPpid(DataChunk.WEBRTCstring);
if (n == 0)
{
single.setFlags(DataChunk.BEGINFLAG);
}
else if (n == teststrings.Length - 1)
{
single.setFlags(DataChunk.ENDFLAG);
}
n++;
bs.Append(ts);
stash.Add(single);
}
result.Add(bs.ToString());
SCTPStreamListener l = new CheckingStreamListener(result);
OrderedStreamBehaviour instance = new OrderedStreamBehaviour();
instance.deliver(s, stash, l);
int remain = result.Count;
Assert.AreEqual(remain, 0);
}
void dontDeliverOnePart(int flag)
{
SCTPStream s = mockStream();
SortedArray <DataChunk> stash = new SortedArray <DataChunk>();
DataChunk single = new DataChunk();
string teststring = "Test string";
single.setData(teststring.getBytes());
single.setPpid(DataChunk.WEBRTCstring);
single.setFlags(flag);
single.setTsn(_tsn++);
single.setsSeqNo(0);
stash.Add(single);
List <string> result = new List <string>();
result.Add(teststring);
SCTPStreamListener l = new CheckingStreamListener(result);
OrderedStreamBehaviour instance = new OrderedStreamBehaviour();
instance.deliver(s, stash, l);
int remain = result.Count;
Assert.AreEqual(1, remain);
}