public void LogTest(string content)
{
string path = Path.GetTempPath() + "\\log.txt";
var file = File.Create(path);
file.Close();
var mockIO = new Mock <SystemWrapper.IO.IFileWrap>();
mockIO.Setup(x => x.Open(It.IsNotNull <string>(), FileMode.Open));//.Returns(mockIO.Object.Open(It.IsNotNull<string>(), FileMode.Open));
dangNhapBUS.Log("", path);
File.Delete(path);
}