expect:
        MemoryAmount.ofKiloBytes(23) == MemoryAmount.of('23k')
        MemoryAmount.ofMegaBytes(23) == MemoryAmount.of('23m')
        MemoryAmount.ofGigaBytes(23) == MemoryAmount.of('23g')
        MemoryAmount.ofTeraBytes(23) == MemoryAmount.of('23t')

    }

    }

    public static MemoryAmount ofGigaBytes(long gigaBytes) {
        long bytes = gigaBytes * GIGA_FACTOR;
        return new MemoryAmount(bytes, bytes + "g");
    }

    public static MemoryAmount ofTeraBytes(long teraBytes) {
        long bytes = teraBytes * TERA_FACTOR;
        return new MemoryAmount(bytes, bytes + "t");
    }

    public static MemoryAmount of(String notation) {