public void CreateEmptyFileTest()
{
using (var testEnvironment = StreamTestEnvironment.FromExistingVhdx(true))
{
using (var filesystem = new ExFatEntryFilesystem(testEnvironment.PartitionStream))
{
using (var s = filesystem.CreateFile(filesystem.RootDirectory, "a.txt"))
{
}
var f = filesystem.FindChild(filesystem.RootDirectory, "a.txt");
using (var s2 = filesystem.OpenFile(f, FileAccess.Read))
{
Assert.AreEqual(-1, s2.ReadByte());
}
}
}
}
public void RandomReadWriteTest()
{
using (var testEnvironment = StreamTestEnvironment.FromExistingVhdx(true))
{
using (var filesystem = new ExFatEntryFilesystem(testEnvironment.PartitionStream))
{
var testFolder = filesystem.CreateDirectory(filesystem.RootDirectory, "inner looping test");
var random = new Random(0);
var fileIndex = 0;
var catalogCache = new List <string>();
for (int loop = 0; loop < 10; loop++)
{
// delete some
var existingFiles = filesystem.EnumerateFileSystemEntries(testFolder).ToArray();
for (int index = 0; index < existingFiles.Length; index++)
{
if (random.Next(0, 2) == 0)
{
filesystem.Delete(existingFiles[index]);
Assert.IsTrue(catalogCache.Remove(existingFiles[index].Name));
}
}
// add some
var newFilesCount = random.Next(100, 300);
for (int index = 0; index < newFilesCount; index++)
{
++fileIndex;
var fileName = fileIndex.ToString();
using (var s = filesystem.CreateFile(testFolder, fileName))
{
var l = random.Next(0, 1000);
var b = BitConverter.GetBytes(fileIndex);
for (int i = 0; i < l; i++)
{
s.Write(b, 0, b.Length);
}
}
catalogCache.Add(fileName);
}
}
}
}
}
public void LengthenFileTest()
{
using (var testEnvironment = StreamTestEnvironment.FromExistingVhdx(true))
{
using (var filesystem = new ExFatEntryFilesystem(testEnvironment.PartitionStream))
{
using (var s = filesystem.CreateFile(filesystem.RootDirectory, "newlong"))
{
var length = 200000;
s.SetLength(length);
s.Seek(-1, SeekOrigin.End);
s.WriteByte(12);
Assert.AreEqual(length, s.Length);
s.WriteByte(34);
Assert.AreEqual(length + 1, s.Length);
}
}
}
}
