public void Decode_WithMaximumLengthInput_Works()
{
var fullChunkLength = CobsZpeZreEncoder.MAX_CHUNK_LENGTH - 1;
var fullChunksCount = CobsZpeZreEncoder.MAX_PACKET_SIZE / fullChunkLength;
var totalBytesInFullChunks = fullChunksCount * fullChunkLength;
var bytesInLastChunk = CobsZpeZreEncoder.MAX_PACKET_SIZE - totalBytesInFullChunks;
var input = GenerateInput(
Enumerable
.Repeat((byte)fullChunkLength, fullChunksCount)
.Append((byte)bytesInLastChunk)
.ToArray(),
0x04
);
var decoder = new CobsZpeZreDecoder();
byte[] output = null;
foreach (var b in input)
{
output = decoder.NextByte(b);
}
Assert.NotNull(output);
Assert.Equal(CobsEncoder.MAX_PACKET_SIZE, output.Length);
Assert.Equal(CobsEncoder.MAX_PACKET_SIZE, output.Count(a => a == 0x04));
}
public void Decode_TooLongInput_Fails()
{
var fullChunkLength = CobsZpeZreEncoder.MAX_CHUNK_LENGTH - 1;
var fullChunksCount = CobsZpeZreEncoder.MAX_PACKET_SIZE / fullChunkLength;
var totalBytesInFullChunks = fullChunksCount * fullChunkLength;
var bytesInLastChunk = CobsZpeZreEncoder.MAX_PACKET_SIZE - totalBytesInFullChunks;
fullChunksCount++;
var input = GenerateInput(
Enumerable
.Repeat((byte)fullChunkLength, fullChunksCount)
.Append((byte)bytesInLastChunk)
.ToArray(),
0x05
);
var decoder = new CobsZpeZreDecoder();
byte[] output = null;
foreach (var b in input)
{
output = decoder.NextByte(b);
Assert.Null(output);
}
}
public void Decoder_ShortRegularPacket_Works()
{
var decoder = new CobsZpeZreDecoder();
var input = new byte[] { 0x03, 0x01, 0x02, 0x00 };
byte[] output = null;
foreach (var b in input)
{
output = decoder.NextByte(b);
}
Assert.NotNull(output);
Assert.NotNull(output);
Assert.Equal(new byte[] { 0x01, 0x02 }, output);
}
public void Decoder_ZeroEndEncoded_Works()
{
var decoder = new CobsZpeZreDecoder();
var input = new byte[] { 0xE5, 0x01, 0x02, 0x03, 0x04, 0x00 };
byte[] output = null;
foreach (var b in input)
{
output = decoder.NextByte(b);
}
Assert.NotNull(output);
Assert.Equal(6, output.Length);
Assert.Equal(new byte[] { 0x01, 0x02, 0x03, 0x04, 0x00, 0x00 }, output);
}
public void Decoder_ZeroRunEncoded_Works()
{
var decoder = new CobsZpeZreDecoder();
var input = new byte[] { 0xD7, 0x00 };
byte[] output = null;
foreach (var b in input)
{
output = decoder.NextByte(b);
}
Assert.NotNull(output);
Assert.Equal(7, output.Length);
Assert.True(output.All(b => b == 0x00));
}
public void Decoder_LongRegularPacket_Works()
{
var decoder = new CobsZpeZreDecoder();
var input = new byte[0xD5];
input[0] = 0xD0;
Array.Fill <byte>(input, 0x01, 1, 0xD0 - 1);
input[0xD0] = 4;
Array.Fill <byte>(input, 0x01, 0xD0 + 1, 3);
input[0xD4] = 0x00;
byte[] output = null;
foreach (var b in input)
{
output = decoder.NextByte(b);
}
Assert.NotNull(output);
Assert.Equal(0xD0 - 1 + 3, output.Length);
Assert.Equal(0xD0 - 1 + 3, output.Count(b => b == 0x01));
}