public void Should_return_Zero_for_Withhold_Selector_when_Income_is_1000_and_Withhold_Taxing_is_False() { IEnginesHistory <ITaxingEngine> engines = TaxingEnginesHistory.CreateEngines(); ITaxingEngine engine = engines.ResolveEngine(testPeriod); bool testWithholdTaxing = false; decimal testIncome = 1000m; decimal resultValue = engine.WithholdTaxSelector(testPeriod, testWithholdTaxing, testIncome); Assert.AreEqual(0, resultValue); }