def calculate_net_income(gross_super_eligible_income, gross_annual_income, current_student_loans):
net_annual_income = gross_annual_income
salary_sacrifice_total = calculate_salary_sacrifice(gross_super_eligible_income)
net_annual_income -= calculate_student_loans(gross_annual_income, current_student_loans)
net_annual_income -= salary_sacrifice_total
net_annual_income -= calculate_tax(gross_annual_income - salary_sacrifice_total)
salary_sacrifice_income = salary_sacrifice_total * (1 - SALARY_SACRIFICE_TAX_RATE)
return net_annual_income + salary_sacrifice_income
def test_calculate_salary_sacrifice_from_low_eligible_income(self):
super_contribution = calculate_salary_sacrifice(60000)
self.assertEqual(super_contribution, 19300)
def test_calculate_salary_sacrifice_from_maxed_out_income(self):
super_contribution = calculate_salary_sacrifice(1000000)
self.assertEqual(super_contribution, 0)