public async Task BaseCurrencyChangedMessageSent_StartReloading()
        {
            await _mainViewModel.Init();

            _settingsProvider.ClearBehavior();
            _settingsProvider.Stub(x => x.GetValue <string>("baseCurrency")).Repeat.Any().Return("PLN");

            Messenger.Default.Send(new BaseCurrencyChangedMessage());

            Assert.AreEqual("1 PLN = ", _mainViewModel.TopLabelText);
            _currencyService.AssertWasCalled(x => x.GetCurrentRates("PLN"));
        }