public void GetFile()
{
var matrix = "11,12,13\n21,22,23\n31,32,33";
HomeController controller = new HomeController(new SquareMatrixModel());
var context = new MVCContextMocks(controller);
context.Session["Matrix"] = matrix;
//// Act
FileContentResult result = controller.GetFile() as FileContentResult;
//// Assert
Assert.IsTrue(result.ContentType == "text/plain");
Assert.IsTrue(Encoding.UTF8.GetString(result.FileContents) == matrix);
}
