private static IStorageConnection CreateStorageConnection(byte[] storageBytes)
{
var logger = new LoggerConfiguration().CreateLogger();
var storageStreamProvider = StorageStreamProviderMockFactory.Create(storageBytes);
return(new StorageConnection(storageStreamProvider, 4096, logger));
}
public void Update_ShouldReturnUpdatedDescriptor(int bufferSize, int fileDescriptorLength)
{
// Arrange
var buffer = new byte[bufferSize];
var storageStreamProvider = StorageStreamProviderMockFactory.Create(buffer);
var logger = new LoggerConfiguration().CreateLogger();
var storageConnection = new StorageConnection(storageStreamProvider, 4096, logger);
var filesystemSerializer = new FilesystemDescriptorSerializer(logger);
var expectedDescriptor = new FilesystemDescriptor(0, 0, fileDescriptorLength);
var filesystemDescriptorBytes = filesystemSerializer.ToBytes(expectedDescriptor);
var filesystemDescriptorCursor = new Cursor(-FilesystemDescriptor.BytesTotal, SeekOrigin.End);
storageConnection.PerformWrite(filesystemDescriptorCursor, filesystemDescriptorBytes);
var filesystemDescriptorAccessor =
new FilesystemDescriptorAccessor(storageConnection, filesystemSerializer, logger);
// Act
filesystemDescriptorAccessor.Update(_ => 0, _ => 0, _ => fileDescriptorLength);
// Assert
var returnedDescriptorBytes =
storageConnection.PerformRead(filesystemDescriptorCursor, FilesystemDescriptor.BytesTotal);
var returnedDescriptor = filesystemSerializer.FromBytes(returnedDescriptorBytes);
Assert.Equal(expectedDescriptor, returnedDescriptor);
}
/// <summary>
/// Adds FileFS data access layer dependencies with in memory stream provider.
/// </summary>
/// <param name="services"><see cref="IServiceCollection"/> instance.</param>
/// <param name="storageBuffer">Storage buffer.</param>
/// <returns>Configured <see cref="IServiceCollection"/> instance.</returns>
public static IServiceCollection AddFileFsDataAccessInMemory(this IServiceCollection services, byte[] storageBuffer)
{
services.AddSingleton <IStorageStreamProvider>(provider =>
StorageStreamProviderMockFactory.Create(storageBuffer));
services.InjectCommonServices();
return(services);
}
