public async Task Administrator_Calculates_Deductible_With_Negative_Tax_Rate()
{
//Arrange
var calculateService = new CalculateService();
var taxRateService = new TaxRateService();
var controller = new CalculatorController(calculateService, taxRateService);
//Act
ViewResult result = await controller.Index(25000, -20, null) as ViewResult;
//Assert
Assert.IsNotNull(result);
Assert.IsNotNull(result.Model);
Assert.IsInstanceOfType(result.Model, typeof(CalculatedVM));
Assert.AreEqual(0, ((CalculatedVM)result.Model).DonatedAmount);
Assert.AreEqual(0, ((CalculatedVM)result.Model).TaxRate);
Assert.AreEqual("0", ((CalculatedVM)result.Model).Supplement);
Assert.AreEqual(0, ((CalculatedVM)result.Model).DeductibleAmount);
Assert.AreEqual("Enter a positive tax rate!", ((CalculatedVM)result.Model).ErrorMessage);
Assert.AreEqual(0, taxRateService.GetTaxRate());
}
public async Task Administrator_Changes_Tax_Rate()
{
//Arrange
var calculateService = new CalculateService();
var taxRateService = new TaxRateService();
var controller = new CalculatorController(calculateService, taxRateService);
//Act
ViewResult result = await controller.Index(25000, 25, null) as ViewResult;
//Assert
Assert.IsNotNull(result);
Assert.IsNotNull(result.Model);
Assert.IsInstanceOfType(result.Model, typeof(CalculatedVM));
Assert.AreEqual(25000, ((CalculatedVM)result.Model).DonatedAmount);
Assert.AreEqual(25, ((CalculatedVM)result.Model).TaxRate);
Assert.AreEqual("0", ((CalculatedVM)result.Model).Supplement);
Assert.AreEqual(8333.333984375, ((CalculatedVM)result.Model).DeductibleAmount);
Assert.AreEqual(null, ((CalculatedVM)result.Model).ErrorMessage);
Assert.AreEqual(25, taxRateService.GetTaxRate());
}