public async Task GetRatesReturnsLatestAmountWhenJustOneRateIsSetup()
{
//Arrange
const string baseSymbol = "USD";
const string targetSymbol = "EUR";
const decimal latestRate = 1.1m;
var context = CreateEmptyContext();
context.ExchangeRates.Add(new ExchangeRate(baseSymbol, targetSymbol, latestRate)
{
Id = Guid.NewGuid()
});
await context.SaveChangesAsync();
var service = new ExchangeRateReadingService(context);
//Act
var rates = await service.GetRatesAsync(baseSymbol, targetSymbol);
//Assert
Assert.IsNotNull(rates);
Assert.IsNotNull(rates.Rates);
Assert.AreEqual(baseSymbol, rates.BaseSymbol);
Assert.AreEqual(1, rates.Rates.Count);
Assert.IsTrue(rates.Rates.ContainsKey(targetSymbol));
Assert.AreEqual(latestRate, rates.Rates[targetSymbol]);
}
public ExchangeRateController(
ExchangeRateReadingService exchangeRateReadingService,
ExchangeRateWriteService exchangeRateWriteService)
{
_exchangeRateReadingService = exchangeRateReadingService;
_exchangeRateWriteService = exchangeRateWriteService;
}
public async Task GetRatesReturnsEmptyRateGivenNoRatesAreSetup()
{
//Arrange
const string baseSymbol = "USD";
const string targetSymbol = "EUR";
var context = CreateEmptyContext();
var service = new ExchangeRateReadingService(context);
//Act
var rates = await service.GetRatesAsync(baseSymbol, targetSymbol);
//Assert
Assert.IsNotNull(rates);
Assert.IsNotNull(rates.Rates);
Assert.AreEqual(baseSymbol, rates.BaseSymbol);
Assert.AreEqual(1, rates.Rates.Count);
Assert.IsTrue(rates.Rates.ContainsKey(targetSymbol));
Assert.AreEqual(null, rates.Rates[targetSymbol]);
}
