public void ExportTest()
{
PartialViewResult rv = (PartialViewResult)_controller.Index();
Assert.IsInstanceOfType(rv.Model, typeof(IBasePagedListVM <TopBasePoco, BaseSearcher>));
IActionResult rv2 = _controller.ExportExcel(rv.Model as ConnectionListVM);
Assert.IsTrue((rv2 as FileContentResult).FileContents.Length > 0);
}