public void SetUp()
{
var grossSalaryCalculator = new GrossSalaryCalculator();
var nationalInsurance = new NationalInsuranceCalculator();
var taxCalculator = new TaxCalculator();
_salarySlipGenerator = new SalarySlipGenerator(grossSalaryCalculator, nationalInsurance, taxCalculator);
}
public void generate_salary_slip_for_employee_with_basic_case_scenario()
{
//Iteration 1: for an annual salary of £5,000.00
var employee = new Employee(id: EmployeeId, name: EmployeeName, annualGrossSalary: 5000);
var salarySlip = SalarySlipGenerator.GenerateFor(employee);
Assert.AreEqual(EmployeeId, salarySlip.EmployeeId);
Assert.AreEqual(EmployeeName, salarySlip.EmployeeName);
Assert.AreEqual(416.67m, salarySlip.MonthlyGrossSalary);
}
public void generate_salary_slip_for_employee_with_basic_national_insurance()
{
//Iteration 2: for an annual gross salary of £9,060.00
var employee = new Employee(id: EmployeeId, name: EmployeeName, annualGrossSalary: 9060);
var salarySlip = SalarySlipGenerator.GenerateFor(employee);
Assert.AreEqual(EmployeeId, salarySlip.EmployeeId);
Assert.AreEqual(EmployeeName, salarySlip.EmployeeName);
Assert.AreEqual(755.00m, salarySlip.MonthlyGrossSalary);
Assert.AreEqual(10.00m, salarySlip.NationalInsurance);
}
public void generate_a_monthly_salary_slip_for_the_employee(Employee employee, SalarySlip expectedSalarySlip)
{
SalarySlip salarySlip = SalarySlipGenerator.GenerateFor(employee);
Assert.AreEqual(expectedSalarySlip.EmployeeId, salarySlip.EmployeeId);
Assert.AreEqual(expectedSalarySlip.EmployeeName, salarySlip.EmployeeName);
Assert.AreEqual(expectedSalarySlip.MonthlyGrossSalary, salarySlip.MonthlyGrossSalary);
Assert.AreEqual(expectedSalarySlip.NationalInsurance, salarySlip.NationalInsurance);
Assert.AreEqual(expectedSalarySlip.TaxfreeAllowance, salarySlip.TaxfreeAllowance);
Assert.AreEqual(expectedSalarySlip.TaxableIncome, salarySlip.TaxableIncome);
Assert.AreEqual(expectedSalarySlip.TaxPayable, salarySlip.TaxPayable);
}
public void generate_salary_slip_for_employee_with_additional_tax()
{
//Iteration 9: for an annual gross salary of £160,000.00
var employee = new Employee(id: EmployeeId, name: EmployeeName, annualGrossSalary: 160000);
var salarySlip = SalarySlipGenerator.GenerateFor(employee);
Assert.AreEqual(EmployeeId, salarySlip.EmployeeId);
Assert.AreEqual(EmployeeName, salarySlip.EmployeeName);
Assert.AreEqual(13333.33m, salarySlip.MonthlyGrossSalary);
Assert.AreEqual(544.40m, salarySlip.NationalInsurance);
Assert.AreEqual(0.00m, salarySlip.TaxfreeAllowance);
Assert.AreEqual(13333.33m, salarySlip.TaxableIncome);
Assert.AreEqual(4841.67m, salarySlip.TaxPayable);
}
public void generate_salary_slip_for_employee_with_less_allowance()
{
//Iteration 5: for an annual gross salary of £101,000.00
var employee = new Employee(id: EmployeeId, name: EmployeeName, annualGrossSalary: 101000);
var salarySlip = SalarySlipGenerator.GenerateFor(employee);
Assert.AreEqual(EmployeeId, salarySlip.EmployeeId);
Assert.AreEqual(EmployeeName, salarySlip.EmployeeName);
Assert.AreEqual(8416.67m, salarySlip.MonthlyGrossSalary);
Assert.AreEqual(446.07m, salarySlip.NationalInsurance);
Assert.AreEqual(875.00m, salarySlip.TaxfreeAllowance);
Assert.AreEqual(7541.67m, salarySlip.TaxableIncome);
Assert.AreEqual(2483.33m, salarySlip.TaxPayable);
}
public void generate_salary_slip_for_employee_with_higher_ni_and_taxes()
{
//Iteration 4: for an annual gross salary of £45,000.00
var employee = new Employee(id: EmployeeId, name: EmployeeName, annualGrossSalary: 45000);
var salarySlip = SalarySlipGenerator.GenerateFor(employee);
Assert.AreEqual(EmployeeId, salarySlip.EmployeeId);
Assert.AreEqual(EmployeeName, salarySlip.EmployeeName);
Assert.AreEqual(3750.00m, salarySlip.MonthlyGrossSalary);
Assert.AreEqual(352.73m, salarySlip.NationalInsurance);
Assert.AreEqual(916.67m, salarySlip.TaxfreeAllowance);
Assert.AreEqual(2833.33m, salarySlip.TaxableIncome);
Assert.AreEqual(600.00m, salarySlip.TaxPayable);
}
public void generate_salary_slip_for_employee_with_basic_taxes()
{
//Iteration 3: for an annual gross salary of £12,000.00
var employee = new Employee(id: EmployeeId, name: EmployeeName, annualGrossSalary: 12000);
var salarySlip = SalarySlipGenerator.GenerateFor(employee);
Assert.AreEqual(EmployeeId, salarySlip.EmployeeId);
Assert.AreEqual(EmployeeName, salarySlip.EmployeeName);
Assert.AreEqual(1000.00m, salarySlip.MonthlyGrossSalary);
Assert.AreEqual(39.40m, salarySlip.NationalInsurance);
Assert.AreEqual(916.67m, salarySlip.TaxfreeAllowance);
Assert.AreEqual(83.33m, salarySlip.TaxableIncome);
Assert.AreEqual(16.67m, salarySlip.TaxPayable);
}
public void GenerateSalaryForJohnDoeWithAnnualGrosSalaryOf_5000pound()
{
Employee johnDoe = new Employee()
{
ID = 12345,
Name = "John Doe",
AnnualGrossSalary = 5000.00m
};
ISalarySlipGenerator generator = new SalarySlipGenerator();
SalarySlip salarySlip = generator.GenerateFor(johnDoe);
Assert.NotNull(salarySlip);
Assert.AreEqual(12345, salarySlip.EmployeeID);
Assert.AreEqual("John Doe", salarySlip.EmployeeName);
Assert.AreEqual(416.67, salarySlip.MonthlyGrossSalary);
}
