pqc/test/test_dynamic_memory.py

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"""
Checks that no dynamic memory functions are used
"""
import pqclean
import helpers
import sys
import unittest
def test_dynamic_memory():
if sys.platform not in ['linux', 'darwin']:
raise unittest.SkipTest()
for scheme in pqclean.Scheme.all_schemes():
for implementation in scheme.implementations:
# Keep this loop outside, to allow multiple assertions
for function in ['malloc', 'free', 'realloc', 'calloc']:
yield (check_dynamic_memory,
scheme.name, implementation.name, function)
def check_dynamic_memory(scheme_name, implementation_name, function):
implementation = pqclean.Implementation.by_name(
scheme_name, implementation_name)
# 'make' will take care of not rebuilding existing library files
helpers.run_subprocess(
['make'],
implementation.path()
)
out = helpers.run_subprocess(
['nm', '-g', 'lib{}_{}.a'.format(scheme_name,
implementation_name)],
implementation.path()
)
lines = out.strip().split("\n")
for line in lines:
if 'U {}'.format(function) in line:
raise AssertionError(
"Illegal use of dynamic memory function '{}'".format(function))
if __name__ == '__main__':
try:
import nose2
nose2.main()
except ImportError:
import nose
nose.runmodule()