public void AddOutOfRangePosition()
{
uint position = 100;
uint fileLocation = 100000;
var saIndexNode = new SaIndexNode(position, fileLocation);
// the node is out of range
Assert.False(saIndexNode.TryAdd(position + uint.MaxValue, fileLocation + ushort.MaxValue - 1, false)); // location should not cause any problem
Assert.False(saIndexNode.TryAdd(position + uint.MaxValue - 1, fileLocation + ushort.MaxValue, false)); // location should cause failure
}
private static SaIndexNode MakeSaIndexNode(uint position)
{
uint fileLocation = 100000;
var saIndexNode = new SaIndexNode(position, fileLocation, true);
for (var i = 0; i < SaIndexNode.SaNodeWidth; i++)
{
saIndexNode.TryAdd(position + (uint)i * 3, fileLocation + (uint)i * 30, i % 3 == 0);//make every third node a ref minor
}
return(saIndexNode);
}
public void NodePopulation()
{
uint position = 100;
uint fileLocation = 100000;
var saIndexNode = new SaIndexNode(position, fileLocation);
for (var i = 0; i < SaIndexNode.SaNodeWidth; i++)
{
Assert.True(saIndexNode.TryAdd(position + (uint)i * 3, fileLocation + (uint)i * 30, false));
}
//the node should be full by now
Assert.False(saIndexNode.TryAdd(position + SaIndexNode.SaNodeWidth, fileLocation + ushort.MaxValue - 1, false));
}
public void NodeWriteRead()
{
var saIndexNode = MakeSaIndexNode(100);
var randomFilePath = GetRandomPath();
using (var writer = new BinaryWriter(FileUtilities.GetCreateStream(randomFilePath)))
{
saIndexNode.Write(writer);
}
using (var reader = new BinaryReader(FileUtilities.GetReadStream(randomFilePath)))
{
var readNode = new SaIndexNode(reader);
Assert.NotNull(readNode);
Assert.Equal((uint)100, readNode.GetFirstPosition());
Assert.Equal((uint)100000, readNode.GetFileLocation(100));
}
File.Delete(randomFilePath);
}
