public void ToString_WithNoOffers_FormatsOutputCorrectly()
{
var cResult = new CalculationResult();
cResult.Add(12.34M);
Assert.AreEqual(
"Subtotal: £12.34" + Environment.NewLine +
"(No offers available)" + Environment.NewLine +
"Total: £12.34" + Environment.NewLine, cResult.ToString());
}
public void ToString_WithOffersInPence2Digits_FormatsOutputCorrectly()
{
var cResult = new CalculationResult();
cResult.Add(12.34M);
cResult.AddOffer(new Offer
{
Description = "TestOffer",
PriceDelta = -0.1M
}, -0.3M);
Assert.AreEqual(
"Subtotal: £12.34" + Environment.NewLine +
"TestOffer: -30p" + Environment.NewLine +
"Total: £12.04" + Environment.NewLine, cResult.ToString());
}
public void ToString_should_return_success_message()
{
// arrange
var model = new CalculationResult
{
Validation = ValidationResult.Success(),
Result = 0.5M,
Inputs = new[] { new Probability(1M), new Probability(0.5M) },
CalculationDate = new DateTime(2019, 1, 2, 3, 4, 5),
TypeOfCalculation = "TEST"
};
// act
var actual = model.ToString();
// assert
actual.Should().Be("2019-01-02T03:04:05 => Success => Type of Calculation: 'TEST', Inputs: [1,0.5], Result: 0.5");
}
public void ToString_should_return_validation_failed_message()
{
// arrange
var model = new CalculationResult
{
Validation = ValidationResult.Fail("FAIL"),
Result = 0.5M,
Inputs = new[] { new Probability(1M), new Probability(0.5M) },
CalculationDate = new DateTime(2019, 1, 2, 3, 4, 5),
TypeOfCalculation = "TEST"
};
// act
var actual = model.ToString();
// assert
actual.Should().Be("2019-01-02T03:04:05 => Validation Failed => FAIL");
}
public async Task LogAsync(CalculationResult result)
{
var filePath = Path.Combine(Directory.GetCurrentDirectory(), "logs");
var fileName = Path.Combine(filePath, "log.txt");
if (!Directory.Exists(filePath))
{
Directory.CreateDirectory(filePath);
}
if (!File.Exists(fileName))
{
await File.WriteAllTextAsync(fileName, result.ToString());
}
else
{
await File.AppendAllTextAsync(fileName, "\r\n" + result);
}
}
/// <summary>
/// Gets the current calculation result
/// </summary>
/// <returns></returns>
public string GetResult()
{
return(CalculationResult.ToString(CultureInfo.InvariantCulture));
}