public void should_get_total_cost_for_department()
{
var department = new Department("DepartmentName");
department.AddStaff(new Employee("Kent", "1", 10));
department.AddStaff(new Employee("Martin", "1", 20));
Assert.Equal(30, department.GetTotalAnnualCost());
}
public void should_get_name_for_department()
{
var department = new Department("DepartmentName");
Assert.Equal("DepartmentName", department.Name);
}