public void ShouldReturn100000WhenAmountEqualToOrAbove200000()
{
var calculator = new FlatTaxCalculator();
var result = calculator.CalulateTax(200000);
Assert.AreEqual(10000m, result);
}
public void ShouldReturn0WhenAMountIs0()
{
var calculator = new FlatTaxCalculator();
var result = calculator.CalulateTax(200000);
Assert.AreEqual(0m, result);
}
public void ShouldReturn5PercentWhenAmountBelow200000()
{
var calculator = new FlatTaxCalculator();
var result = calculator.CalulateTax(19999);
Assert.AreEqual(999.95m, result);
}
public void ShouldThrowInvalidAmountExcetionWhenANegativeAmount()
{
var calculator = new FlatTaxCalculator();
Assert.Throws <InvalidFlatTaxAmountException>(() => calculator.CalulateTax(-200000));
}
