public void TestCreateFolder()
{
TreeNode el = new TreeNode(0, "Creating digital images folder");
if (!Regex.IsMatch(el.Name, @"^[a-zA-Z ]+$"))
{
Assert.Fail();
}
ValidationController validation = new ValidationController();
var isValid = validation.IsFolderNameUnique(el);
isValid.Should().BeOfType <JsonResult>();
if (!Convert.ToBoolean(isValid.Data))
{
Assert.Fail();
}
}