Mapytex/pymath/calculus/test/test_fraction.py

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#!/usr/bin/env python
# encoding: utf-8
import unittest
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from pymath.calculus.fraction import Fraction
class TestFraction(unittest.TestCase):
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"""Testing functions from pymath.calculus.Fraction"""
def setUp(self):
self.listFrom = [Fraction(1,3), 1]
self.listAgainst = [ Fraction(1,3), \
Fraction(2,3), \
Fraction(4,5), \
Fraction(-1, 3), \
Fraction(1,-3), \
1,
]
def test_add(self):
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ans = [[Fraction(2, 3), 1, Fraction(17, 15), 0, 0, Fraction(4,3)], \
[Fraction(4,3), Fraction(5,3), Fraction(9,5), Fraction(2,3), Fraction(2,3), 2] \
]
for (i, f1) in enumerate(self.listFrom):
for (j, f2) in enumerate(self.listAgainst):
res = f1 + f2
self.assertEqual(res, ans[i][j])
def test_sub(self):
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ans = [[0, Fraction(-1,3), Fraction(-7, 15), Fraction(2,3), Fraction(2,3), Fraction(-2,3)], \
[Fraction(2,3), Fraction(1,3), Fraction(1,5), Fraction(4,3), Fraction(4,3), 0] \
]
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for (i, f1) in enumerate(self.listFrom):
for (j, f2) in enumerate(self.listAgainst):
res = f1 - f2
self.assertEqual(res, ans[i][j])
def test_neg(self):
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ans = [ Fraction(-1,3), \
Fraction(-2,3), \
Fraction(-4,5), \
Fraction(1, 3), \
Fraction(1,3), \
-1
]
for (j, f) in enumerate(self.listAgainst):
res = -f
self.assertEqual(res, ans[j])
def test_mul(self):
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ans = [[Fraction(1, 9), Fraction(2,9), Fraction(4, 15), Fraction(-1,9), Fraction(-1,9), Fraction(1,3)], \
[ Fraction(1,3), Fraction(2,3), Fraction(4,5), Fraction(-1, 3), Fraction(1,-3), 1] \
]
for (i, f1) in enumerate(self.listFrom):
for (j, f2) in enumerate(self.listAgainst):
res = f1 * f2
self.assertEqual(res, ans[i][j])
def test_truediv(self):
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ans = [[1, Fraction(1,2), Fraction(5, 12), -1, -1, Fraction(1,3)], \
[3, Fraction(3,2), Fraction(5,4), -3, -3, 1] \
]
for (i, f1) in enumerate(self.listFrom):
for (j, f2) in enumerate(self.listAgainst):
res = f1 / f2
self.assertEqual(res, ans[i][j])
def test_lt(self):
pass
def test_le(self):
pass
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def test_tex(self):
f = Fraction(2, 3)
ans = "\\frac{ 2 }{ 3 }"
self.assertEqual(f.__tex__(), ans)
def test_txt(self):
f = Fraction(2, 3)
ans = "2 / 3"
self.assertEqual(f.__txt__(), ans)
if __name__ == '__main__':
unittest.main()
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