public async Task ShouldDeleteGroupAndChargeStations()
        {
            var group = await AddGroupAsync();

            var station = await AddChargeStationAsync(group.Id);

            var command = new DeleteGroupCommand
            {
                GroupId = group.Id
            };

            await Testing.SendAsync(command);

            group = await Testing.FindAsync <Group>(command.GroupId);

            group.Should().BeNull();

            var chargeStation = await Testing.FindAsync <ChargeStation>(station.Id);

            chargeStation.Should().BeNull();
        }