pqc/test/test_makefile_dependencies.py

64 lines
2.4 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
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
helpers.run_subprocess(['touch'] + cfiles + hfiles + ofiles)
helpers.run_subprocess(['touch', libfile])
helpers.run_subprocess(['touch', '-A', '-15', '-m'] + cfiles + hfiles)
helpers.run_subprocess(['touch', '-A', '-10', '-m'] + ofiles)
helpers.run_subprocess(['touch', '-A', '-05', '-m', libfile])
mtime_lib_orig = os.stat(libfile).st_mtime_ns
# touch the candidate .c / .h file
helpers.run_subprocess(['touch', '-A', '15', '-m', 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()