public void FillDataForQueries_NoFillNeeded_ReturnCurrencyRatesOrdered()
{
var service = new MissingDataService();
var queries = new CurrencyRateQuery[]
{
new CurrencyRateQuery("xxx", "yyy", DateTime.UtcNow.AddDays(-1)),
new CurrencyRateQuery("aaa", "bbb", DateTime.UtcNow.AddDays(-1)),
};
var currencyRates = queries.Select(query => new CurrencyRate(query, 1)).ToArray();
var result = service.FillDataForQueries(currencyRates, queries).ToArray();
result.Should().HaveCount(2);
result.Should().SatisfyRespectively(
first =>
{
first.Should().Be(currencyRates[1]);
},
second =>
{
second.Should().Be(currencyRates[0]);
}
);
}
public void FillDataForQueries_OneDayMissingData_ReturnContinousDayData()
{
var service = new MissingDataService();
var missingDataDate = DateTime.UtcNow.AddDays(-10);
var queries = new CurrencyRateQuery[]
{
new CurrencyRateQuery("xxx", "yyy", missingDataDate.AddDays(-1)),
new CurrencyRateQuery("xxx", "yyy", missingDataDate),
new CurrencyRateQuery("xxx", "yyy", missingDataDate.AddDays(1)),
new CurrencyRateQuery("aaa", "bbb", missingDataDate.AddDays(-1)),
new CurrencyRateQuery("aaa", "bbb", missingDataDate),
new CurrencyRateQuery("aaa", "bbb", missingDataDate.AddDays(1)),
};
var currencyRates = queries
.Where(query => query.Date != missingDataDate)
.Select((query, id) => new CurrencyRate(query, id + 1)).ToArray();
var result = service.FillDataForQueries(currencyRates, queries).ToArray();
result.Should().HaveCount(6);
result.Where(currencyRate => currencyRate.Query.Date == missingDataDate).Should().HaveCount(2);
}
public void FillDataForQueries_NullCurrencyRateQueries_ThrowArgumentNullException()
{
var service = new MissingDataService();
var currencyRates = new CurrencyRate[] { };
CurrencyRateQuery[] queries = null;
Action act = () => service.FillDataForQueries(currencyRates, queries).ToArray();
act.Should().Throw <ArgumentNullException>()
.And.ParamName.Should().Be("queries");
}
public void FillDataForQueries_OneDayResultAndNextOneMissingData_ReturnBothResultsWithSameValues()
{
var service = new MissingDataService();
var missingDataDate = DateTime.UtcNow.AddDays(-10);
var queries = new CurrencyRateQuery[]
{
new CurrencyRateQuery("xxx", "yyy", missingDataDate.AddDays(-1)),
new CurrencyRateQuery("xxx", "yyy", missingDataDate),
};
var currencyRates = queries
.Where(query => query.Date != missingDataDate)
.Select((query, id) => new CurrencyRate(query, id + 1)).ToArray();
var result = service.FillDataForQueries(currencyRates, queries).ToArray();
result.Should().HaveCount(2);
result.Where(currencyRate => currencyRate.Query.Date == missingDataDate).Should().HaveCount(1);
result.Select(currencyRate => currencyRate.ExchangeRate).Should().AllBeEquivalentTo(currencyRates.First().ExchangeRate);
}