Mapytex/pymath/calculus/test/test_render.py

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#!/usr/bin/env python
# encoding: utf-8
import unittest
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from pymath.calculus.render import tex, txt,p2i
from pymath.calculus.fraction import Fraction
from pymath.calculus.polynom import Polynom
from pymath.calculus.operator import op
from pymath.calculus.expression import Expression
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from itertools import permutations
def mass_poly_test(operation, rg= 5):
""" @todo
:op: the operation
:rg: number of potential values for coefs
:returns: @todo
"""
coefs_p = [[(i-2),(j-2)] for i,j in permutations(range(rg),2)]
coefs_q = [[2*(i-2),2*(j-2)] for i,j in permutations(range(rg),2)]
l_p = [Polynom(i) for i in coefs_p]
l_q = [Polynom(i) for i in coefs_q]
return [Expression([l_p[i],l_q[j],op.get_op(operation)]) for i,j in permutations(range(len(coefs_p)),2)]
class TestTexRender(unittest.TestCase):
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"""Testing functions from pymath.calculus.renders.tex"""
def test_type_render_int(self):
self.assertEqual(tex([2]), "2")
def test_type_render_str(self):
self.assertEqual(tex(["a"]), "a")
def test_type_render_fraction(self):
self.assertEqual(tex([Fraction(1,2)]), "\\frac{ 1 }{ 2 }")
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def test_type_render_poly(self):
P = Polynom([1,2,3])
self.assertEqual(tex([P]), "3 x^{ 2 } + 2 x + 1")
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def test_add_interger(self):
exps = [ [2, 3, op.add ],
[2, -3, op.add ],
[-2, 3, op.add ],
]
wanted_render = [ "2 + 3",
"2 - 3",
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"-2 + 3",
]
for (i,e) in enumerate(exps):
rend = tex(e)
self.assertEqual(rend, wanted_render[i])
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def test_mass_add(self):
permu = mass_poly_test("+",5)
from .mass_test import POLY_ADD_VALID_RESULTS
for (i,v) in enumerate(permu):
self.assertEqual(tex(v), POLY_ADD_VALID_RESULTS[i])
def test_mass_sub(self):
permu = mass_poly_test("-",5)
from .mass_test import POLY_SUB_VALID_RESULTS
for (i,v) in enumerate(permu):
self.assertEqual(tex(v), POLY_SUB_VALID_RESULTS[i])
def test_mass_mul(self):
permu = mass_poly_test("*",5)
from .mass_test import TEX_POLY_MUL_VALID_RESULTS
for (i,v) in enumerate(permu):
self.assertEqual(tex(v), TEX_POLY_MUL_VALID_RESULTS[i])
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def test_add_letter(self):
exps = [[2, "a", op.add ],
["a", 3, op.add ],
[-2, "a", op.add ],
["a", -2, op.add ],
]
wanted_render = [ "2 + a",
"a + 3",
"-2 + a",
"a - 2",
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]
for (i,e) in enumerate(exps):
rend = tex(e)
self.assertEqual(rend, wanted_render[i])
def test_add_fraction(self):
exps = [[2, Fraction(1,2), op.add],
[Fraction(1,2), 3, op.add],
]
wanted_render = [ "2 + \\frac{ 1 }{ 2 }",
"\\frac{ 1 }{ 2 } + 3",
]
for (i,e) in enumerate(exps):
rend = tex(e)
self.assertEqual(rend, wanted_render[i])
def test_add_poly(self):
exps = [[2, Polynom([1,2,3]), op.mul],
[Polynom([1,2,3]), 2, op.mul],
[Polynom([1,2,3]), Polynom([4,5,6]), op.mul],
]
wanted_render = [ "2 ( 3 x^{ 2 } + 2 x + 1 )",
"( 3 x^{ 2 } + 2 x + 1 ) \\times 2",
"( 3 x^{ 2 } + 2 x + 1 ) ( 6 x^{ 2 } + 5 x + 4 )",
]
for (i,e) in enumerate(exps):
rend = tex(e)
self.assertEqual(rend, wanted_render[i])
def test_mult_interger(self):
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exps = [[2, 3, op.mul],
[2, -3, op.mul],
[-2, 3, op.mul],
]
wanted_render = [ "2 \\times 3",
"2 \\times ( -3 )",
"-2 \\times 3",
]
for (i,e) in enumerate(exps):
rend = tex(e)
self.assertEqual(rend, wanted_render[i])
def test_mult_letter(self):
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exps = [[2, "a", op.mul],
["a", 3, op.mul],
[-2, "a", op.mul],
["a", -2, op.mul],
]
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wanted_render = [ "2 a", "a \\times 3", "-2 a", "a \\times ( -2 )"]
for (i,e) in enumerate(exps):
rend = tex(e)
self.assertEqual(rend, wanted_render[i])
def test_mult_fraction(self):
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exps = [ [2, Fraction(1,2), op.mul], [Fraction(1,2), 3, op.mul]]
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wanted_render = [ "2 \\times \\frac{ 1 }{ 2 }", "\\frac{ 1 }{ 2 } \\times 3"]
for (i,e) in enumerate(exps):
rend = tex(e)
self.assertEqual(rend, wanted_render[i])
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def test_mult_poly(self):
exps = [[2, Polynom([1,2,3]), op.mul],
[Polynom([1,2,3]), 2, op.mul],
[Polynom([1,2,3]), Polynom([4,5,6]), op.mul],
]
wanted_render = [ "2 ( 3 x^{ 2 } + 2 x + 1 )",
"( 3 x^{ 2 } + 2 x + 1 ) \\times 2",
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"( 3 x^{ 2 } + 2 x + 1 ) ( 6 x^{ 2 } + 5 x + 4 )",
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]
for (i,e) in enumerate(exps):
rend = tex(e)
self.assertEqual(rend, wanted_render[i])
def test_parentheses_int(self):
exps = [\
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[ 2, 3, op.add, 4, op.mul],\
[ 2, 3, op.mul, 4, op.add],\
[ 2, 3, 4, op.mul, op.add],\
[ 2, 3, 4, op.add, op.add],\
[ 2, 3, 4, op.add, op.sub],\
]
wanted_render = [\
'( 2 + 3 ) \\times 4',\
'2 \\times 3 + 4',\
'2 + 3 \\times 4',\
'2 + 3 + 4',\
'2 - ( 3 + 4 )',\
]
for (i,e) in enumerate(exps):
rend = tex(e)
self.assertEqual(rend, wanted_render[i])
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def test_parentheses_poly(self):
P = Polynom([1,2,3])
Q = Polynom([4,5,6])
exps = [\
[ 2, P, op.add],\
[ 2, P, op.sub],\
[ 2, P, P, op.mul, op.sub],\
[ Q, P, op.add],\
[ Q, P, op.sub],\
]
wanted_render = [\
'2 + 3 x^{ 2 } + 2 x + 1' ,\
'2 - ( 3 x^{ 2 } + 2 x + 1 )' ,\
'2 - ( 3 x^{ 2 } + 2 x + 1 ) ( 3 x^{ 2 } + 2 x + 1 )' ,\
'6 x^{ 2 } + 5 x + 4 + 3 x^{ 2 } + 2 x + 1' ,\
'6 x^{ 2 } + 5 x + 4 - ( 3 x^{ 2 } + 2 x + 1 )' ,\
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]
for (i,e) in enumerate(exps):
rend = tex(e)
self.assertEqual(rend, wanted_render[i])
def test_slash(self):
pass
class TesttxtRender(unittest.TestCase):
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"""Testing functions from pymath.calculus.renders.txt"""
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def test_type_render_int(self):
self.assertEqual(txt([2]), "2")
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def test_type_render_str(self):
self.assertEqual(txt(["a"]), "a")
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def test_type_render_fraction(self):
self.assertEqual(txt([Fraction(1,2)]), "1 / 2")
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def test_mult_interger(self):
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exps = [ [2, 3, op.mul], \
[2, -3, op.mul], \
[-2, 3, op.mul]]
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wanted_render = [ "2 * 3", "2 * ( -3 )", "-2 * 3"]
for (i,e) in enumerate(exps):
rend = txt(e)
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self.assertEqual(rend, wanted_render[i])
def test_mult_letter(self):
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exps = [ [2, "a", op.mul], \
["a", 3, op.mul], \
[-2, "a", op.mul], \
["a", -2, op.mul],
["a", -2, op.mul, -2, op.mul],
["a", -2, op.mul, "a", op.mul],
]
wanted_render = [ "2 a",
"a * 3",
"-2 a",
"a * ( -2 )",
"a * ( -2 ) * ( -2 )",
"a * ( -2 ) a",
]
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for (i,e) in enumerate(exps):
rend = txt(e)
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self.assertEqual(rend, wanted_render[i])
def test_mult_fraction(self):
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exps = [ [2, Fraction(1,2), op.mul], \
[Fraction(1,2), 3, op.mul]]
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wanted_render = [ "2 * 1 / 2", "1 / 2 * 3"]
for (i,e) in enumerate(exps):
rend = txt(e)
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self.assertEqual(rend, wanted_render[i])
def test_parentheses(self):
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mul = op.get_op("*", 2)
add = op.get_op("+", 2)
exps = [\
[ 2, 3, add, 4, mul],\
[ 2, 3, mul, 4, add],\
[ 2, 3, 4, mul, add],\
[ 2, 3, 4, add, add],\
]
wanted_render = [\
'( 2 + 3 ) * 4',\
'2 * 3 + 4',\
'2 + 3 * 4',\
'2 + 3 + 4',\
]
for (i,e) in enumerate(exps):
rend = txt(e)
self.assertEqual(rend, wanted_render[i])
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def test_slash(self):
pass
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def test_mass_add(self):
permu = mass_poly_test("+",5)
from .mass_test import POLY_ADD_VALID_RESULTS
for (i,v) in enumerate(permu):
self.assertEqual(txt(v), POLY_ADD_VALID_RESULTS[i])
def test_mass_sub(self):
permu = mass_poly_test("-",5)
from .mass_test import POLY_SUB_VALID_RESULTS
for (i,v) in enumerate(permu):
self.assertEqual(txt(v), POLY_SUB_VALID_RESULTS[i])
def test_mass_mul(self):
permu = mass_poly_test("*",5)
from .mass_test import TXT_POLY_MUL_VALID_RESULTS
for (i,v) in enumerate(permu):
self.assertEqual(txt(v), TXT_POLY_MUL_VALID_RESULTS[i])
if __name__ == '__main__':
unittest.main()
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