public void CalculateSavingsPerMonth_ReturnsExpectedValues()
{
// arrange
var calculator = new FuelSavingsCalculator(120, FuelSavingsCalculatorTimeFrame.Week, 20, 29, 1.50m);
// act
var savings = calculator.CalculateSavingsPerMonth();
//assert
Assert.AreEqual(savings, 12.10);
}
private decimal CalculateSavings()
{
if (!NecessaryDataIsProvidedToCalculateSavings())
{
return(0);
}
FuelSavingsCalculatorTimeFrame timeframe;
Enum.TryParse <FuelSavingsCalculatorTimeFrame>(ddMilesDrivenTimeFrame.SelectedValue, out timeframe);
var calculator = new FuelSavingsCalculator(
Convert.ToInt16(txtMilesDriven.Text),
timeframe,
Convert.ToInt16(txtTradeMpg.Text),
Convert.ToInt16(txtNewMpg.Text),
Convert.ToDecimal(txtPpg.Text));
return(calculator.CalculateSavingsPerMonth());
}