public void EmptyPacketSpecifyingBuffer()
{
byte[] buffer = new byte[Ssm2Packet.PacketSizeMax];
// Constructor for initializing packet object by
// providing own (empty) buffer
// For parsing existing content use instance method .FromBytes (buffer) or
// static method Ssm2Packet.NewFromBytes (buffer) instead!
Ssm2Packet p = new Ssm2Packet(buffer);
// packet buffer mostly contains zeroes
// undefined, don't check:
// Size, CheckSum, etc.
//Assert.AreEqual (0, p.Size, "Size");
Assert.AreEqual((Ssm2Command)0, p.Command, "Command");
// Assert.AreEqual (0, p.ChecksumCalculated, "ChecksumCalculated");
Assert.AreEqual(false, p.Check(), "Check");
// not useful, just demonstrating that packet is invalid
// byte[] buf = p.ToBytesCopy ();
//Assert.AreEqual (0, buf.Length, "buf.Length");
}
public void Parse1()
{
byte[] expected = TestPacket1;
// Static method NewFromBytes () analyzes packet type,
// and returns a specific packet object.
// Based on given data in this case we know upfront,
// it'll be an read-addresses-request.
Ssm2ReadAddressesRequest p;
p = (Ssm2ReadAddressesRequest)Ssm2Packet.NewFromBytes(expected);
// check standard properties
Assert.AreEqual(expected.Length, p.Size, "Size");
Assert.AreEqual(true, p.Check(), "Check()");
Assert.AreEqual(Ssm2Device.Engine10, p.Destination, "Destination");
Assert.AreEqual(Ssm2Device.DiagnosticToolF0, p.Source, "Source");
Assert.AreEqual(Ssm2Command.ReadAddressesRequestA8, p.Command, "Command");
// check packet type specifics
IList <int> addresses = p.Addresses;
Assert.AreEqual(1, addresses.Count, "addrList.Count");
Assert.AreEqual(1, p.AddressesCount, "AddressesCount");
Assert.AreEqual(0x123456, addresses[0], "adr[0]");
}
public bool Equals(Ssm2Packet p)
{
if (p == null)
{
return(false);
}
return(this.GetHashCode() == p.GetHashCode());
}
public void EqualsDefaultPacket()
{
Ssm2Packet p1, p2;
p1 = new Ssm2Packet();
p2 = new Ssm2Packet();
Assert.AreEqual(true, p1.Equals(p2), "Equals1");
Assert.AreEqual(true, p1.Equals((object)p2), "Equals2");
}
public void NewFromBytes()
{
// best for parsing as it does not allocate anything
var p = (Ssm2ReadBlockRequest)Ssm2Packet.NewFromBytes(TestPacket1);
// Same static method can also be accessed like this:
// Ssm2InitRequest.NewFromBytes (...)
AssertData1(p);
}
public void NewFromBytes()
{
byte[] packetData = EcuInit1;
// best for parsing as it does not allocate anything
Ssm2InitRequest p = (Ssm2InitRequest)Ssm2Packet.NewFromBytes(packetData);
// Same static method can also be accessed like this:
// Ssm2InitRequest.NewFromBytes (...)
AssertProperties1(p);
}
// overriding Equals, GetHashCode etc. not necessary
// but provide much better performance if used
public override bool Equals(object obj)
{
if (obj == null)
{
return(false);
}
Ssm2Packet p = obj as Ssm2Packet;
if (p == null)
{
return(false);
}
// Return true if the data matches:
return(this.GetHashCode() == p.GetHashCode());
}
static void AssertProperties1(Ssm2Packet p)
{
byte[] expectedPacketData = EcuInit1;
Assert.IsInstanceOfType(typeof(Ssm2InitRequest), p, "type");
Assert.IsInstanceOfType(typeof(Ssm2Packet), p, "base type");
Assert.AreEqual(expectedPacketData.Length, p.Size, "Size");
Assert.AreEqual(true, p.Check(), "Check()");
Assert.AreEqual(Ssm2Device.Engine10, p.Destination, "Destination");
Assert.AreEqual(Ssm2Device.DiagnosticToolF0, p.Source, "Source");
Assert.AreEqual(Ssm2Command.InitRequestBF, p.Command, "Command");
byte[] bytes = p.ToBytesCopy();
for (int i = 0; i < expectedPacketData.Length; i++)
{
Assert.AreEqual(expectedPacketData[i], bytes[i], "bytes[]");
}
}
public void DefaultPacket()
{
Ssm2Packet p = new Ssm2Packet();
Assert.AreEqual(false, p.Check(), "Check");
// Following tests are very implementation specific
// and rather for debugging purposes!
// Real code should not depend on most packet properties
// except Check(), Capacity, Size.
// packet is almost empty since no properties haven't been set yet
Assert.AreEqual(Ssm2Packet.PacketSizeMin, p.Size, "Size");
// only 1st byte is set to 128, all other bytes are 0,
// therefore checksum is 128, too.
Assert.AreEqual(128, p.ChecksumCalculated, "ChecksumCalculated");
// not useful, just demonstrating that packet is invalid
byte[] buf = p.ToBytesCopy();
// generic packet type has minimum size
Assert.AreEqual(Ssm2Packet.PacketSizeMin, buf.Length, "buf.Length");
}
public bool Equals(Ssm2Packet p)
{
if (p == null)
return false;
return (this.GetHashCode () == p.GetHashCode ());
}
static void AssertProperties1(Ssm2Packet p)
{
byte[] expectedPacketData = EcuInit1;
Assert.IsInstanceOfType (typeof(Ssm2InitRequest), p, "type");
Assert.IsInstanceOfType (typeof(Ssm2Packet), p, "base type");
Assert.AreEqual (expectedPacketData.Length, p.Size, "Size");
Assert.AreEqual (true, p.Check (), "Check()");
Assert.AreEqual (Ssm2Device.Engine10, p.Destination, "Destination");
Assert.AreEqual (Ssm2Device.DiagnosticToolF0, p.Source, "Source");
Assert.AreEqual (Ssm2Command.InitRequestBF, p.Command, "Command");
byte[] bytes = p.ToBytesCopy ();
for (int i = 0; i < expectedPacketData.Length; i++) {
Assert.AreEqual (expectedPacketData[i], bytes[i], "bytes[]");
}
}
