public void Returns_positive_value_on_valid_path(string path)
{
var fs = new LocalFileSystem();
var result = fs.RemainingDiskSpace(path);
Assert.IsTrue(result > 0);
}
public void Returns_negative_value_on_invalid_path()
{
var fs = new LocalFileSystem();
Assert.IsTrue(fs.RemainingDiskSpace("Invalid:\\Invalid") == -1);
}
