public async Task ExchangeRates_SEK_To_NOK_Returns_0970839476467_AsAverage()
{
var sut = new ExchangeRatesManagement(new HttpClient());
var result = await sut.GetRatesForGivenPeriodsAsync(
new HistoryRatesRequest(
new[]
{
new DateTime(2018, 2, 1),
new DateTime(2018, 2, 15),
new DateTime(2018, 3, 1)
}, "SEK", "NOK"));
Assert.Equal(0.970839476467m, result.AverageRate, precision: 12);
}
public async Task ExchangeRates_WhenDateBefore_1999_01_04_ShouldThrowDateException()
{
var sut = new ExchangeRatesManagement(new HttpClient());
await Assert.ThrowsAsync <DateException>(async() =>
await sut.GetRatesForGivenPeriodsAsync(
new HistoryRatesRequest(
new[]
{
new DateTime(1998, 2, 1),
new DateTime(2018, 2, 15),
new DateTime(2018, 3, 1)
},
"SEK",
"NOK")));
}
public async Task ExchangeRates_WhenBaseCurrencyAndTargetCurrencySame_ShouldThrowCurrencyException()
{
var sut = new ExchangeRatesManagement(new HttpClient());
await Assert.ThrowsAsync <CurrencyException>(async() =>
await sut.GetRatesForGivenPeriodsAsync(
new HistoryRatesRequest(
new[]
{
new DateTime(2018, 2, 1),
new DateTime(2018, 2, 15),
new DateTime(2018, 3, 1)
},
"NOK",
"NOK")));
}
public async Task GetRatesForGivenPeriodAsync_WhenArgumentIsNull_ShouldThrowArgumentNullException()
{
await Assert.ThrowsAsync <ArgumentNullException>(() => _sut.GetRatesForGivenPeriodsAsync(null));
}