public void FileStore_GetDataFile_ReadsCorrectFile()
{
// Given
IFileProvider fileProvider = Substitute.For <IFileProvider>();
IFileStore store = new FileStore(new FakeFileStoreFileProviderFactory(fileProvider));
// When
store.GetDataFile(FileIdentifier.FromString("aaaa"));
// Then
fileProvider.Received(1).GetFileInfo("aaaa.dat");
}