Update project structure and build process

libwallet/newop/exchange_rates_test.go

@@ -0,0 +1,27 @@
+package newop
+
+import (
+	"testing"
+
+	"github.com/shopspring/decimal"
+)
+
+func TestExchangeWindowConvert(t *testing.T) {
+
+	window := &ExchangeRateWindow{}
+	window.AddRate("BTC", 1)
+	window.AddRate("USD", 32_000)
+
+	amount := NewMonetaryAmountFromSatoshis(100_000_000)
+
+	converted := window.convert(amount, "USD")
+
+	if converted.Currency != "USD" {
+		t.Fatalf("expected converted currency to be USD, got %v", converted.Currency)
+	}
+
+	if converted.Value.Cmp(decimal.NewFromInt(32_000)) != 0 {
+		t.Fatalf("expected converted amount to be 32000, got %v", converted.Value)
+	}
+
+}