public void CreateFileDirect()
{
using (var cleaner = new TestFileCleaner())
{
using (var file = FileMethods.CreateFileDirect(@"\??\" + cleaner.GetTestPath(), CreateDisposition.Create))
{
file.IsInvalid.Should().BeFalse();
}
}
}
public void OpenFileDirect()
{
using (var cleaner = new TestFileCleaner())
{
string path = cleaner.CreateTestFile(nameof(OpenFileDirect));
using (var file = FileMethods.CreateFileDirect(@"\??\" + path, CreateDisposition.Open))
{
file.IsInvalid.Should().BeFalse();
}
}
}
public void OpenFileDirect_WithSpan()
{
using (var cleaner = new TestFileCleaner())
{
string path = @"\??\" + cleaner.CreateTestFile(nameof(OpenFileDirect_WithSpan));
string wrongPath = path + "foo";
using (var file = FileMethods.CreateFileDirect(wrongPath.AsSpan().Slice(0, path.Length), CreateDisposition.Open))
{
file.IsInvalid.Should().BeFalse();
}
}
}
public void TestFileRights()
{
using (var cleaner = new TestFileCleaner())
{
string testFile = cleaner.CreateTestFile(nameof(TestFileRights));
// CreateFile ALWAYS adds SYNCHRONIZE & FILE_READ_ATTRIBUTES.
using (var handle = FileMethods.CreateFile(testFile, CreationDisposition.OpenExisting, DesiredAccess.ReadControl))
{
FileMethods.GetRights(handle).Should().Be(FileAccessRights.ReadAttributes | FileAccessRights.ReadControl | FileAccessRights.Synchronize);
}
using (var handle = FileMethods.CreateFile(testFile, CreationDisposition.OpenExisting, DesiredAccess.ReadAttributes))
{
FileMethods.GetRights(handle).Should().Be(FileAccessRights.ReadAttributes | FileAccessRights.Synchronize);
}
using (var handle = FileMethods.CreateFile(testFile, CreationDisposition.OpenExisting, DesiredAccess.Synchronize))
{
FileMethods.GetRights(handle).Should().Be(FileAccessRights.ReadAttributes | FileAccessRights.Synchronize);
}
using (var handle = FileMethods.CreateFile(testFile, CreationDisposition.OpenExisting, DesiredAccess.GenericRead))
{
FileMethods.GetRights(handle).Should().Be(FileAccessRights.ReadAttributes | FileAccessRights.ReadControl
| FileAccessRights.Synchronize | FileAccessRights.ReadData | FileAccessRights.ReadExtendedAttributes);
}
// DesiredAccess.Synchronize is required for synchronous access.
string directTestFile = @"\??\" + testFile;
using (var handle = FileMethods.CreateFileDirect(directTestFile, CreateDisposition.Open, DesiredAccess.Synchronize))
{
FileMethods.GetRights(handle).Should().Be(FileAccessRights.Synchronize);
}
// Open async
using (var handle = FileMethods.CreateFileDirect(directTestFile, CreateDisposition.Open, DesiredAccess.ReadAttributes, ShareModes.ReadWrite, 0, 0))
{
FileMethods.GetRights(handle).Should().Be(FileAccessRights.ReadAttributes);
}
using (var handle = FileMethods.CreateFileDirect(directTestFile, CreateDisposition.Open, DesiredAccess.ReadAttributes | DesiredAccess.Synchronize, ShareModes.ReadWrite, 0, 0))
{
FileMethods.GetRights(handle).Should().Be(FileAccessRights.ReadAttributes | FileAccessRights.Synchronize);
}
}
}
