public async Task Can_validate_an_group()
{
mediator.SendAsync(Arg.Any <ValidateActiveDirectoryGroupCommand>())
.Returns(Task.FromResult((ICommandResult) new SuccessResult(true)));
var result = await validationController.LdapGroup(groupName : "dummytext") as ViewResult;
dynamic data = result.Model;
Assert.IsTrue(data);
}