def test_equal_amounts_repayment_for_all_years(self):
test_example = DebtExpenses(200000, 0.14, 4)
req_sum = 0
for i in range(1, 5, 1):
_, expenses = test_example.equal_amounts_repayment(i)
req_sum += expenses
self.assertEqual(format(req_sum, '.0f'), '200000')
def test_equal_payments_repayment_for_4_year(self):
test_example = DebtExpenses(200000, 0.14, 4)
payment, expenses = test_example.equal_payments_repayment(4)
self.assertEqual([format(payment, '.0f'),
format(expenses, '.0f')], ['68641', '60211'])
def test_equal_amounts_repayment_for_invalid_neg_year(self):
test_example = DebtExpenses(200000, 0.14, 4)
with self.assertRaises(Exception):
test_example.equal_amounts_repayment(-6)
def test_equal_amounts_repayment_for_3_year(self):
test_example = DebtExpenses(200000, 0.14, 4)
payment, expenses = test_example.equal_amounts_repayment(3)
self.assertEqual([format(payment, '.0f'),
format(expenses, '.0f')], ['64000', '50000'])
def test_equal_amounts_repayment_with_invalid_req_sum(self):
with self.assertRaises(ValueError):
DebtExpenses(-333, 0.14, 4)
def test_equal_amounts_repayment_with_invalid_type_percent_rate(self):
with self.assertRaises(TypeError):
DebtExpenses(200000, '0.14', 4)
def test_equal_amounts_repayment_with_invalid_type_period(self):
with self.assertRaises(TypeError):
DebtExpenses(200000, 0.14, 4.5)
def test_equal_amounts_repayment_with_invalid_type_req_sum(self):
with self.assertRaises(TypeError):
DebtExpenses(13823.4566, 0.14, 4)
def test_equal_amounts_repayment_with_all_invalid_values(self):
with self.assertRaises(ValueError):
DebtExpenses(-200000, -0.14, -4)
def test_equal_amounts_repayment_with_invalid_percent_rate(self):
with self.assertRaises(ValueError):
DebtExpenses(200000, -0.14, 4)