public async void CheckStats()
{
string expected = "200";
GetStatsQuery getquery = new GetStatsQuery();
StatsView statitics = new StatsView(1, 1);
_mediator
.Setup(m => m.Send(It.IsAny <GetStatsQuery>(), It.IsAny <CancellationToken>()))
.ReturnsAsync(statitics).Verifiable();
ActionResult <StatsView> actionResult = await _sut.GetStats();
var result = actionResult.Result as OkObjectResult;
Assert.Equal(expected, result.StatusCode.ToString());
_mediator.VerifyAll();
}