public void ApplyTax_WithSalesTaxOf10Percent_ReturnCalculatedTax() { RoundToNearestMultipleCalculator roundToNearest = new RoundToNearestMultipleCalculator(0.05); BasicSalesTax basicSalesTax = new BasicSalesTax(10, roundToNearest); var unitPrice = 14.99; double expected = 1.5; var actual = basicSalesTax.ApplyTax(unitPrice); Assert.AreEqual(expected, actual); unitPrice = 14.99; expected = 1.5; actual = basicSalesTax.ApplyTax(unitPrice); Assert.AreEqual(expected, actual); }
public void RoundUp_PrecisionIs005_ReturnNearestUpperValue() { RoundToNearestMultipleCalculator roundToNearest = new RoundToNearestMultipleCalculator(0.05); var number = 12.789; var expected = 12.80; var actual = roundToNearest.RoundUp(number); Assert.AreEqual(expected, actual); number = 12.735; expected = 12.75; actual = roundToNearest.RoundUp(number); Assert.AreEqual(expected, actual); number = 12.70; expected = 12.70; actual = roundToNearest.RoundUp(number); Assert.AreEqual(expected, actual); }