public void GivenCustomerWhenCustomerIsNullThenReturnNull()
{
// Arrange
var mockPremiumCalculator = new Mock <IPremiumCalculator>();
Customer mockCustomer = null;
var premiumCalculatorBuilder = new PremiumCalculatorBuilder(mockPremiumCalculator.Object);
// Act
premiumCalculatorBuilder.SetCustomer(mockCustomer);
// Assert
Assert.IsNull(mockCustomer);
}
public void GivenCustomerWhenCustomerIsPresentThenSetCustomerData()
{
// Arrange
var mockPremiumCalculator = new Mock <IPremiumCalculator>();
var mockCustomer = this.GetCustomerMock();
var premiumCalculatorBuilder = new PremiumCalculatorBuilder(mockPremiumCalculator.Object);
// Act
premiumCalculatorBuilder.SetCustomer(mockCustomer);
// Assert
Assert.AreEqual(50, mockCustomer.AnnualPremium);
}
public void GivenCustomerWhenCustomerIsPresentThenReturnAverageMonthlyPremium()
{
// Arrange
var mockPremiumCalculator = new Mock <IPremiumCalculator>();
mockPremiumCalculator.Setup(c => c.CalculateAverageMonthlyPremium(It.IsAny <decimal>(), It.IsAny <int>())).Returns(4.375M);
var mockCustomer = this.GetCustomerMock();
var premiumCalculatorBuilder = new PremiumCalculatorBuilder(mockPremiumCalculator.Object);
premiumCalculatorBuilder.SetCustomer(mockCustomer);
// Act
premiumCalculatorBuilder.CalculateAverageMonthlyPremium();
// Assert
mockPremiumCalculator.Verify(c => c.CalculateAverageMonthlyPremium(It.IsAny <decimal>(), It.IsAny <int>()), Times.Once);
Assert.AreEqual(4.375M, mockCustomer.AverageMonthlyPremium);
}
public void GivenCustomerWhenCustomerIsPresentThenReturnCreditCharge()
{
// Arrange
var mockPremiumCalculator = new Mock <IPremiumCalculator>();
mockPremiumCalculator.Setup(c => c.CalculateCreditCharge(It.IsAny <decimal>())).Returns(2.5M);
var mockCustomer = this.GetCustomerMock();
var premiumCalculatorBuilder = new PremiumCalculatorBuilder(mockPremiumCalculator.Object);
premiumCalculatorBuilder.SetCustomer(mockCustomer);
// Act
premiumCalculatorBuilder.CalculateCreditCharge();
// Assert
mockPremiumCalculator.Verify(c => c.CalculateCreditCharge(It.IsAny <decimal>()), Times.Once);
Assert.AreEqual(2.5M, mockCustomer.CreditCharge);
}
