/usr/lib/python2.7/dist-packages/pint/testsuite/test_pint_eval.py is in python-pint 0.8.1-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 | # -*- coding: utf-8 -*-
from __future__ import division, unicode_literals, print_function, absolute_import
from pint.compat import tokenizer
from pint.pint_eval import build_eval_tree
from pint.testsuite.compat import unittest
class TestPintEval(unittest.TestCase):
def _test_one(self, input_text, parsed):
self.assertEqual(build_eval_tree(tokenizer(input_text)).to_string(), parsed)
def test_build_eval_tree(self):
self._test_one('3', '3')
self._test_one('1 + 2', '(1 + 2)')
# order of operations
self._test_one('2 * 3 + 4', '((2 * 3) + 4)')
# parentheses
self._test_one('2 * (3 + 4)', '(2 * (3 + 4))')
# more order of operations
self._test_one('1 + 2 * 3 ** (4 + 3 / 5)', '(1 + (2 * (3 ** (4 + (3 / 5)))))')
# nested parentheses at beginning
self._test_one('1 * ((3 + 4) * 5)', '(1 * ((3 + 4) * 5))')
# nested parentheses at end
self._test_one('1 * (5 * (3 + 4))', '(1 * (5 * (3 + 4)))')
# nested parentheses in middle
self._test_one('1 * (5 * (3 + 4) / 6)', '(1 * ((5 * (3 + 4)) / 6))')
# unary
self._test_one('-1', '(- 1)')
# unary
self._test_one('3 * -1', '(3 * (- 1))')
# double unary
self._test_one('3 * --1', '(3 * (- (- 1)))')
# parenthetical unary
self._test_one('3 * -(2 + 4)', '(3 * (- (2 + 4)))')
# parenthetical unary
self._test_one('3 * -((2 + 4))', '(3 * (- (2 + 4)))')
# implicit op
self._test_one('3 4', '(3 4)')
# implicit op, then parentheses
self._test_one('3 (2 + 4)', '(3 (2 + 4))')
# parentheses, then implicit
self._test_one('(3 ** 4 ) 5', '((3 ** 4) 5)')
# implicit op, then exponentiation
self._test_one('3 4 ** 5', '(3 (4 ** 5))')
# implicit op, then addition
self._test_one('3 4 + 5', '((3 4) + 5)')
# power followed by implicit
self._test_one('3 ** 4 5', '((3 ** 4) 5)')
# implicit with parentheses
self._test_one('3 (4 ** 5)', '(3 (4 ** 5))')
# exponent with e
self._test_one('3e-1', '3e-1')
# multiple units with exponents
self._test_one('kg ** 1 * s ** 2', '((kg ** 1) * (s ** 2))')
# multiple units with neg exponents
self._test_one('kg ** -1 * s ** -2', '((kg ** (- 1)) * (s ** (- 2)))')
# multiple units with neg exponents
self._test_one('kg^-1 * s^-2', '((kg ^ (- 1)) * (s ^ (- 2)))')
# multiple units with neg exponents, implicit op
self._test_one('kg^-1 s^-2', '((kg ^ (- 1)) (s ^ (- 2)))')
# nested power
self._test_one('2 ^ 3 ^ 2', '(2 ^ (3 ^ 2))')
# nested power
self._test_one('gram * second / meter ** 2', '((gram * second) / (meter ** 2))')
# nested power
self._test_one('gram / meter ** 2 / second', '((gram / (meter ** 2)) / second)')
# units should behave like numbers, so we don't need a bunch of extra tests for them
# implicit op, then addition
self._test_one('3 kg + 5', '((3 kg) + 5)')
|