AReaL/evaluation/latex2sympy/tests/context.py

97 lines
3.2 KiB
Python

import os
import sys
from latex2sympy.latex2sympy2 import latex2sympy as process_sympy
from sympy import Add, Mul, Pow, Rational, Symbol, pi, simplify, sqrt, srepr
sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), "..")))
x = Symbol("x", real=True)
y = Symbol("y", real=True)
# shorthand definitions
def _Add(a, b):
return Add(a, b, evaluate=False)
def _Mul(a, b):
return Mul(a, b, evaluate=False)
def _Pow(a, b):
return Pow(a, b, evaluate=False)
def get_simple_examples(func):
"""Returns an array of tuples, containing the string `input`, sympy
`output` using the provided sympy `func`, and `symbolically` boolean for
calling `compare`."""
return [
("1.1", func(1.1), False),
("6.9", func(6.9), False),
("3.5", func(3.5), False),
("8", func(8), False),
("0", func(0), False),
("290348E32", func(Rational("290348E32")), False),
("1237.293894239480234", func(Rational("1237.293894239480234")), False),
("8623.4592104E-2", func(Rational("8623.4592104E-2")), False),
("\\pi ", func(pi), False),
("\\sqrt{100}", func(sqrt(100)), False),
("12,123.4", func(Rational("12123.4")), False),
("-9.4", func(-9.4), False),
("-35.9825", func(-35.9825), False),
("-\\sqrt{5}", func(-sqrt(5)), False),
("-324E-3", func(Rational("-324E-3")), False),
("-0.23", func(-0.23), False),
("\\frac{1}{2}", func(Rational("1/2")), False),
("\\frac{6}{2}", func(Rational("6/2")), False),
("\\frac{9}{5}", func(Rational("9/5")), False),
("\\frac{-42}{6}", func(Rational("-42/6")), False),
("-\\frac{325}{3}", func(Rational("-325/3")), False),
("\\frac{\\pi }{2}", func(pi / 2), False),
("(1+6)/3", func(Rational(1 + 6, 3)), False),
("1+6/3", func(1 + Rational("6/3")), False),
("7*4/5", func(7 * 4 / 5), False),
("15-2.3", func(15 - Rational("2.3")), False),
("x", func(x), True),
("x + y", func(x + y), True),
("\\frac{9x}{4}", func(9 * x / 4), True),
("y\\pi", func(y * pi), True),
("2y-y-y", func(2 * y - y - y), True),
]
def compare(actual, expected, symbolically=False):
if symbolically:
assert simplify(actual - expected) == 0
else:
actual_exp_tree = srepr(actual)
expected_exp_tree = srepr(expected)
try:
assert actual_exp_tree == expected_exp_tree
except Exception:
if (
isinstance(actual, int)
or isinstance(actual, float)
or actual.is_number
and isinstance(expected, int)
or isinstance(expected, float)
or expected.is_number
):
assert (
actual == expected
or actual - expected == 0
or simplify(actual - expected) == 0
)
else:
print("expected_exp_tree = ", expected_exp_tree)
print("actual exp tree = ", actual_exp_tree)
raise
def assert_equal(latex, expr, variable_values={}, symbolically=False):
parsed = process_sympy(latex, variable_values)
compare(parsed, expr, symbolically)