public void CreateFile(string Filename, int FileSizeMb)
{
Console.Write("Creating file... ");
int targetFileSizeBytes = FileSizeMb * 1024 * 1024;
using (FileStream fileStream = File.Open(Filename, FileMode.Create, FileAccess.Write, FileShare.Read))
{
using (StreamWriter streamWriter = new StreamWriter(fileStream))
{
// Open root element.
int fileSizeBytes = 0;
OpenElement(streamWriter, ref fileSizeBytes, false);
while (fileSizeBytes < targetFileSizeBytes)
{
// Determine action.
int actionPercent = _random.Next(100);
if ((actionPercent < _actionPercentages[0]) && (_elementNames.Count > 1))
{
CloseElement(streamWriter, ref fileSizeBytes);
}
else if (actionPercent < _actionPercentages[1])
{
OpenElement(streamWriter, ref fileSizeBytes);
}
else
{
WriteElement(streamWriter, ref fileSizeBytes);
}
}
// Close all elements.
CloseAllElements(streamWriter, ref fileSizeBytes);
}
}
}
public static void Shuffle <T>(this IList <T> Items, IThreadsafeRandom Random)
{
// Use the Fischer-Yates algorithm.
// See https://en.wikipedia.org/wiki/Fisher%E2%80%93Yates_shuffle
var maxIndex = Items.Count - 1;
for (var index = maxIndex; index > 0; index--)
{
var swapIndex = Random.Next(0, index + 1);
var temp = Items[index];
Items[index] = Items[swapIndex];
Items[swapIndex] = temp;
}
}