public async Task CalculateDiscount_ReturnsFivePercentPlusFiveOnEveryHundredOfAmount_WhenCustomerForOverTwoYears()
{
// Arrange
var invoiceService = new InvoiceDomainService(_discountRepoMock.Object);
var customerRole = "General";
//Act
var result = await invoiceService.CalculateDiscount(_totalAmount, _totalAmountWithoutGroceries, customerRole, _customerRegistrationDate);
//Assert
Assert.Equal(900m, result);
}
public async Task CalculateDiscount_ReturnsFiveOnEveryHundredOfAmount_WhenCustomerRoleIsCustomerForLessThanTwoYears()
{
// Arrange
var invoiceService = new InvoiceDomainService(_discountRepoMock.Object);
var customerRole = "Customer";
var customerRegDate = DateTime.Now;
//Act
var result = await invoiceService.CalculateDiscount(_totalAmount, _totalAmountWithoutGroceries, customerRole, customerRegDate);
//Assert
Assert.Equal(500m, result);
}
public async Task CalculateDiscount_ReturnsZero_WhenCustomerRoleIsCustomerForLessThanTwoYearsAndAmountIsLessThan100()
{
// Arrange
var invoiceService = new InvoiceDomainService(_discountRepoMock.Object);
var customerRole = "Customer";
var customerRegDate = DateTime.Now;
var amt = 90;
//Act
var result = await invoiceService.CalculateDiscount(amt, amt, customerRole, customerRegDate);
//Assert
Assert.Equal(0m, result);
}
