public async Task DeleteByVideoIdentifier_Should_Return_Ok()
{
const string id = "id";
var actual = await _historyController.DeleteByVideoIdentifier(id).ConfigureAwait(false);
_historyService.Verify(service => service.DeleteByVideoIdentifierAsync(It.Is <string>(s => s == id)),
Times.Once);
var ok = actual as OkResult;
Assert.NotNull(ok);
}