public void CreateDragonTapeDataBlock_Empty()
{
var block = new DragonTapeDataBlock(null);
Assert.Equal(DragonTapeBlockType.Data, block.BlockType);
Assert.Equal(0, block.Length);
Assert.Null(block.Data);
Assert.Equal(1, block.Checksum);
block.Validate();
}
public void CreateDragonTapeDataBlock_PayloadTooLarge_ThrowsException()
{
var payload = new byte[256];
DragonTapeBlock block = null;
try
{
block = new DragonTapeDataBlock(payload);
Assert.True(false, "Block with too large payload incorrectly created.");
}
catch (ArgumentOutOfRangeException) {}
}
public void CreateDragonTapeDataBlock()
{
var payload = new byte[] {0x10, 0x20, 0x30, 0x01, 0x02, 0x03, 0x55, 0xaa};
var block = new DragonTapeDataBlock(payload);
Assert.AreEqual(DragonTapeBlockType.Data, block.BlockType);
Assert.AreEqual(payload.Length, block.Length);
var data = block.Data;
for (int i = 0; i < data.Length; i++ ) Assert.AreEqual(payload[i], data[i]);
Assert.AreEqual(0x6e, block.Checksum);
block.Validate();
}
public void CreateDragonTapeDataBlock()
{
var payload = new byte[] { 0x10, 0x20, 0x30, 0x01, 0x02, 0x03, 0x55, 0xaa };
var block = new DragonTapeDataBlock(payload);
Assert.Equal(DragonTapeBlockType.Data, block.BlockType);
Assert.Equal(payload.Length, block.Length);
var data = block.Data;
for (int i = 0; i < data.Length; i++)
{
Assert.Equal(payload[i], data[i]);
}
Assert.Equal(0x6e, block.Checksum);
block.Validate();
}
public void CreateDragonTapeDataBlock_PayloadTooLarge_ThrowsException()
{
var payload = new byte[256];
DragonTapeBlock block = null;
try
{
block = new DragonTapeDataBlock(payload);
Assert.Fail("Block with too large payload incorrectly created.");
}
catch (ArgumentOutOfRangeException) {}
}
public void CreateDragonTapeDataBlock_Empty()
{
var block = new DragonTapeDataBlock(null);
Assert.AreEqual(DragonTapeBlockType.Data, block.BlockType);
Assert.AreEqual(0, block.Length);
Assert.AreEqual(null, block.Data);
Assert.AreEqual(1, block.Checksum);
block.Validate();
}
private void WriteDataBlocks(DragonFile file)
{
int blocks = (file.Length + 254)/255; // number of data blocks to write
int offset = 0;
bool firstblock = true; // make sure to create a long leader for the first data block
for (int i = 0; i < blocks; i++ )
{
var block = new DragonTapeDataBlock(file.GetData(), offset, Math.Min(255, file.Length - offset));
block.WriteBlock(Tape, !(firstblock || file.IsGapped));
offset += 255;
firstblock = false;
}
}
