public void Get_currency_converterlayer_success(string from, string to)
{
var mock = new Mock <IHttpClient>();
mock.Setup(x => x.GetBaseHttpTask <decimal>(Singleton.AppSettings.BaseUrl, "currency", $"currencyFrom={from}", $"currencyTo={to}"));
var service = new CurrencyConverterService(mock.Object);
service.GetCurrency(from, to);
mock.Verify(x => x.GetBaseHttpTask <decimal>(Singleton.AppSettings.BaseUrl, "currency", $"currencyFrom={from}", $"currencyTo={to}"), Times.Once);
}
