public void WriteAllBytesTest()
        {
            var path = @"z:\temp\aaa.txt";
            var text = "あいうえお";
            var encoding = Encoding.GetEncoding("shift-jis");

            var file = new FileEmu();

            file.WriteAllBytes(path, encoding.GetBytes(text));

            Assert.AreEqual(text, file.ReadAllText(path, encoding));
        }