public static OfflinePacketDevice GetOfflineDevice(int numPackets, Packet packet, TimeSpan intervalBetweenPackets, string dumpFilename, string readFilename = null)
{
if (readFilename == null)
{
readFilename = dumpFilename;
}
PacketCommunicator communicator;
using (communicator = LivePacketDeviceTests.OpenLiveDevice())
{
using (PacketDumpFile dumpFile = communicator.OpenDump(dumpFilename))
{
int lastPosition = 0;
for (int i = 0; i != numPackets; ++i)
{
if (intervalBetweenPackets != TimeSpan.Zero && i != 0)
{
DateTime timestamp = packet.Timestamp;
timestamp = timestamp.Add(intervalBetweenPackets);
packet = new Packet(packet.Buffer, timestamp, packet.DataLink);
}
dumpFile.Dump(packet);
MoreAssert.IsBigger(lastPosition, dumpFile.Position);
lastPosition = dumpFile.Position;
dumpFile.Flush();
}
}
}
if (readFilename != dumpFilename)
{
if (File.Exists(readFilename))
{
File.Delete(readFilename);
}
File.Move(dumpFilename, readFilename);
}
OfflinePacketDevice device = new OfflinePacketDevice(readFilename);
Assert.AreEqual(0, device.Addresses.Count);
Assert.AreEqual(string.Empty, device.Description);
Assert.AreEqual(DeviceAttributes.None, device.Attributes);
Assert.AreEqual(readFilename, device.Name);
return(device);
}
