class CompoundInterestTest(unittest.TestCase):
def setUp(self):
self.calc_1 = CompoundInterest(100, 20, 0.1)
# Tests
def test_part_one(self):
get_part_one = self.calc_1.part_one_of_equation(
self.calc_1.interest_rate)
self.assertEqual(1.0083333333, get_part_one)
def test_part_two(self):
get_part_two = self.calc_1.part_two_of_equation(self.calc_1.years)
self.assertEqual(240, get_part_two)
# Should return 732.81 given 100 principal, 10 percent, 20 years
def test_compound_interest_calc(self):
get_compound_interest = self.calc_1.compound_interest_calc(
self.calc_1.principal_amount, self.calc_1.years,
self.calc_1.interest_rate)
self.assertEqual(732.81, get_compound_interest)
# Should return 181.94 given 100 principal, 6 percent, 10 years
def test_compound_interest_calc__example_2(self):
calc_2 = CompoundInterest(100, 10, 0.06)
get_compound_interest = calc_2.compound_interest_calc(
calc_2.principal_amount, calc_2.years, calc_2.interest_rate)
self.assertEqual(181.94, get_compound_interest)
# Should return 149,058.55 given 100000 principal, 5 percent, 8 years
def test_compound_interest_calc__example_3(self):
calc_3 = CompoundInterest(100000, 8, 0.05)
get_compound_interest = calc_3.compound_interest_calc(
calc_3.principal_amount, calc_3.years, calc_3.interest_rate)
self.assertEqual(149058.55, get_compound_interest)
# Should return 0.00 given 0 principal, 10 percent, 1 year
def test_compound_interest_calc__example_4(self):
calc_4 = CompoundInterest(0, 1, 0.1)
get_compound_interest = calc_4.compound_interest_calc(
calc_4.principal_amount, calc_4.years, calc_4.interest_rate)
self.assertEqual(0.00, get_compound_interest)
def test_compound_interest_calc__example_3(self):
calc_3 = CompoundInterest(100000, 8, 0.05)
get_compound_interest = calc_3.compound_interest_calc(
calc_3.principal_amount, calc_3.years, calc_3.interest_rate)
self.assertEqual(149058.55, get_compound_interest)
def test_compound_interest_calc__example_4(self):
calc_4 = CompoundInterest(0, 1, 0.1)
get_compound_interest = calc_4.compound_interest_calc(
calc_4.principal_amount, calc_4.years, calc_4.interest_rate)
self.assertEqual(0.00, get_compound_interest)
def test_compound_interest_calc__example_2(self):
calc_2 = CompoundInterest(100, 10, 0.06)
get_compound_interest = calc_2.compound_interest_calc(
calc_2.principal_amount, calc_2.years, calc_2.interest_rate)
self.assertEqual(181.94, get_compound_interest)