private static CurrencyHistory CreateTestHistory()
{
DateTime d1 = new DateTime(2020, 01, 01);
DateTime d2 = new DateTime(2020, 01, 02);
DateTime d3 = new DateTime(2020, 01, 03);
DateTime d4 = new DateTime(2020, 01, 04);
CurrencyRate[] r1 =
{
new CurrencyRate("HUF", 1), new CurrencyRate("FOO", 10), new CurrencyRate("BAR", 100)
};
CurrencyRate[] r2 =
{
new CurrencyRate("HUF", 2), new CurrencyRate("FOO", 20), new CurrencyRate("BAR", 200)
};
CurrencyRate[] r3 =
{
new CurrencyRate("HUF", 3), new CurrencyRate("FOO", 30), new CurrencyRate("BAR", 300)
};
CurrencyRate[] r4 =
{
new CurrencyRate("HUF", 4), new CurrencyRate("FOO", 40), new CurrencyRate("BAR", 400)
};
CurrencyRatesSnapshot s1 = new CurrencyRatesSnapshot(d1, r1);
CurrencyRatesSnapshot s2 = new CurrencyRatesSnapshot(d2, r2);
CurrencyRatesSnapshot s3 = new CurrencyRatesSnapshot(d3, r3);
CurrencyRatesSnapshot s4 = new CurrencyRatesSnapshot(d4, r4);
return(CurrencyHistory.CreateFromSnapshots(new[] { s1, s2, s3, s4 }));
}
public async Task <IActionResult> History()
{
var rates = await _currencyRateProvider.GetAllRatesAsync();
CurrencyHistory history = CurrencyHistory.CreateFromSnapshots(rates);
var result = new
{
codes = history.Codes.Select(c => c.Value).ToArray(),
dates = history.Dates.Select(d => d.ToString("yyyy-MM-dd")).ToArray(),
data = history.Select(s => s.ToArray()).ToArray()
};
return(Json(result));
}
public void ThrowsOnInconsistentInputCount()
{
CurrencyRate[] r1 =
{
new CurrencyRate("HUF", 1)
};
CurrencyRate[] r2 =
{
new CurrencyRate("HUF", 10), new CurrencyRate("FOO", 20)
};
CurrencyRatesSnapshot s1 = new CurrencyRatesSnapshot(DateTime.Now, r1);
CurrencyRatesSnapshot s2 = new CurrencyRatesSnapshot(DateTime.Now, r2);
Assert.ThrowsAny <Exception>(() =>
{
CurrencyHistory.CreateFromSnapshots(new[] { s1, s2 });
});
}
public void EurIsIgnored()
{
CurrencyRate[] r1 =
{
new CurrencyRate("HUF", 1), new CurrencyRate("EUR", 2)
};
CurrencyRate[] r2 =
{
new CurrencyRate("HUF", 10), new CurrencyRate("EUR", 20)
};
CurrencyRatesSnapshot s1 = new CurrencyRatesSnapshot(DateTime.Now, r1);
CurrencyRatesSnapshot s2 = new CurrencyRatesSnapshot(DateTime.Now, r2);
var history = CurrencyHistory.CreateFromSnapshots(new[] { s1, s2 });
Assert.Equal(1, history.Count);
Assert.Equal(1, history.Codes.Count);
Assert.NotNull(history["huf"]);
}
