public async Task VisitRepository_GetCountFromDate_Test()
{
var date = DateTime.Today;
var context = new MyCompanyContext();
int expected = context.Visits.Count(v => v.VisitDateTime >= date);
var target = new VisitRepository(context);
var actual = await target.GetCountFromDateAsync(string.Empty, date);
Assert.AreEqual(expected, actual);
}