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mirror of https://github.com/henrydcase/pqc.git synced 2024-11-22 23:48:58 +00:00
pqcrypto/test/test_makefile_dependencies.py
2019-02-25 23:42:48 -05:00

68 lines
2.6 KiB
Python

"""
Checks that every .c and .h file in an implementation is present as a
dependency of that scheme's Makefile.
"""
import hashlib
import os
import pqclean
import helpers
import subprocess
import glob
import datetime
def test_makefile_dependencies():
for scheme in pqclean.Scheme.all_schemes():
for implementation in scheme.implementations:
# initial build - want to have all files in place at beginning
helpers.run_subprocess(['make', 'clean'], implementation.path())
helpers.run_subprocess(['make'], implementation.path())
# test case for each candidate file
cfiles = glob.glob(os.path.join(implementation.path(), '*.c'))
hfiles = glob.glob(os.path.join(implementation.path(), '*.h'))
for file in cfiles + hfiles:
yield check_makefile_dependencies, scheme.name, implementation.name, file
def check_makefile_dependencies(scheme_name, implementation_name, file):
scheme = pqclean.Scheme.by_name(scheme_name)
implementation = pqclean.Implementation.by_name(scheme_name, implementation_name)
cfiles = glob.glob(os.path.join(implementation.path(), '*.c'))
hfiles = glob.glob(os.path.join(implementation.path(), '*.h'))
ofiles = glob.glob(os.path.join(implementation.path(), '*.o'))
libfile = os.path.join(implementation.path(), implementation.libname())
# modification time-based calculations is tricky on a sub-second basis
# so we reset all the modification times to a known and "sensible" order
now = datetime.datetime.now()
ago15 = now - datetime.timedelta(seconds=15)
ago10 = now - datetime.timedelta(seconds=10)
ago5 = now - datetime.timedelta(seconds=5)
formatstring = "%Y%m%d%H%M.%S"
helpers.run_subprocess(['touch', '-t', ago15.strftime(formatstring)] + cfiles + hfiles)
helpers.run_subprocess(['touch', '-t', ago10.strftime(formatstring)] + ofiles)
helpers.run_subprocess(['touch', '-t', ago5.strftime(formatstring), libfile])
mtime_lib_orig = os.stat(libfile).st_mtime_ns
# touch the candidate .c / .h file
helpers.run_subprocess(['touch', '-t', now.strftime(formatstring), file])
# rebuild
helpers.run_subprocess(['make'], implementation.path())
# make sure the libfile's modification time changed
mtime_lib_upd = os.stat(libfile).st_mtime_ns
if (mtime_lib_orig == mtime_lib_upd):
print("ERROR: Library was not updated after touching {}".format(file))
assert(mtime_lib_orig != mtime_lib_upd)
if __name__ == '__main__':
try:
import nose2
nose2.main()
except ImportError:
import nose
nose.runmodule()