public async Task convertCurrencyAsync_ShouldConvertBetweenCurrencies_WhenBothAndAmountValid()
{
Currency brl = new Currency()
{
name = "BRL", rate = 0.5M
};
Currency eur = new Currency()
{
name = "EUR", rate = 2M
};
_cache.Setup(x => x.GetAsync(brl.name)).ReturnsAsync(brl.rate.ToString());
_cache.Setup(x => x.GetAsync(eur.name)).ReturnsAsync(eur.rate.ToString());
decimal amount = 1;
var result = await _sut.convertCurrencyAsync(brl.name, eur.name, amount);
var fromAmount = amount * brl.rate;
var toAmount = fromAmount / eur.rate;
Assert.Equal(toAmount, result);
}
public async Task <IActionResult> Converter([FromQuery] string from, [FromQuery] string to, [FromQuery] string amount)
{
try
{
//Logger removed to maximize performance
if (from == null)
{
return(new BadRequestObjectResult(new { Error = "variable 'from' not found or empty" }));
}
if (to == null)
{
return(new BadRequestObjectResult(new { Error = "variable 'to' not found or empty" }));
}
if (amount == null)
{
return(new BadRequestObjectResult(new { Error = "variable 'amount' not found" }));
}
decimal amountDecimal = 0;
if (!decimal.TryParse(amount, NumberStyles.AllowDecimalPoint, new NumberFormatInfo()
{
NumberDecimalSeparator = ","
}, out amountDecimal))
{
return(new BadRequestObjectResult(new { Error = "variable 'amount' doesn't have valid value (must be positive and use ',' as decimal separator" }));
}
decimal result = await _converterSrvc.convertCurrencyAsync(from.ToUpper(), to.ToUpper(), amountDecimal);
return(new OkObjectResult(result));
}
catch (Exception)
{
return(new BadRequestObjectResult(new { Error = "Currency not found" }));
}
}
