def testMoreComplexRepeatingDecimal(self, divisor, multiplier):
"""
Should always end in .142857142857....
"""
dividend = Fraction(divisor) * (multiplier + Fraction(1, 7))
res = long_decimal_division(divisor, dividend)
self.assertEqual(res[3], [1, 4, 2, 8, 5, 7])
self.assertEqual(res[2], [])
self.assertEqual(res[1], multiplier)
self.assertEqual(res[0], 1)
def testComplexRepeatingDecimal(self, divisor, multiplier):
"""
Should always end in .16666.....
"""
dividend = Fraction(divisor) * (multiplier + Fraction(1, 6))
res = long_decimal_division(divisor, dividend)
self.assertEqual(res[3], [6])
self.assertEqual(res[2], [1])
self.assertEqual(res[1], multiplier)
self.assertEqual(res[0], 1)
def testExact(self, divisor, multiplier):
"""
A divisor that divides the dividend has no decimal part.
"""
dividend = Fraction(divisor) * multiplier
res = long_decimal_division(divisor, dividend)
self.assertEqual(res[3], [])
self.assertEqual(res[2], [])
self.assertEqual(res[1], multiplier)
self.assertEqual(res[0], 1)
def testNonRepeatingDecimal(self, divisor, multiplier):
"""
Should always end in .5.
"""
dividend = Fraction(divisor) * (multiplier + Fraction(1, 2))
res = long_decimal_division(divisor, dividend)
self.assertEqual(res[3], [])
self.assertEqual(res[2], [5])
self.assertEqual(res[1], multiplier)
self.assertEqual(res[0], 1)
def testException(self):
"""
Test exceptions.
"""
with self.assertRaises(SizeValueError):
long_decimal_division(1.2, 1)
with self.assertRaises(SizeValueError):
long_decimal_division(1, 1.2)
with self.assertRaises(SizeValueError):
long_decimal_division(0, 1)