harfbuzz/test/fuzzing/run-shape-fuzzer-tests.py

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#!/usr/bin/env python3
import sys, os, subprocess, tempfile, shutil
def cmd (command):
# https://stackoverflow.com/a/4408409 as we might have huge output sometimes
with tempfile.TemporaryFile () as tempf:
p = subprocess.Popen (command, stderr=tempf)
try:
p.wait (timeout=int (os.environ.get ("HB_TEST_SHAPE_FUZZER_TIMEOUT", "2")))
tempf.seek (0)
text = tempf.read ()
#TODO: Detect debug mode with a better way
is_debug_mode = b"SANITIZE" in text
return ("" if is_debug_mode else text.decode ("utf-8").strip ()), p.returncode
except subprocess.TimeoutExpired:
return 'error: timeout, ' + ' '.join (command), 1
srcdir = os.environ.get ("srcdir", ".")
EXEEXT = os.environ.get ("EXEEXT", "")
top_builddir = os.environ.get ("top_builddir", ".")
hb_shape_fuzzer = os.path.join (top_builddir, "hb-shape-fuzzer" + EXEEXT)
if not os.path.exists (hb_shape_fuzzer):
if len (sys.argv) == 1 or not os.path.exists (sys.argv[1]):
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sys.exit ("""Failed to find hb-shape-fuzzer binary automatically,
please provide it as the first argument to the tool""")
hb_shape_fuzzer = sys.argv[1]
print ('hb_shape_fuzzer:', hb_shape_fuzzer)
fails = 0
libtool = os.environ.get ('LIBTOOL')
valgrind = None
if os.environ.get ('RUN_VALGRIND', ''):
valgrind = shutil.which ('valgrind')
if valgrind is None:
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sys.exit ("""Valgrind requested but not found.""")
if libtool is None:
print ("""Valgrind support is currently autotools only and needs libtool but not found.""")
parent_path = os.path.join (srcdir, "fonts")
for file in os.listdir (parent_path):
path = os.path.join (parent_path, file)
if valgrind:
text, returncode = cmd (libtool.split(' ') + ['--mode=execute', valgrind + ' --leak-check=full --error-exitcode=1', '--', hb_shape_fuzzer, path])
else:
text, returncode = cmd ([hb_shape_fuzzer, path])
if 'error' in text:
returncode = 1
if (not valgrind or returncode) and text.strip ():
print (text)
if returncode != 0:
print ('failure on %s' % file)
fails = fails + 1
if fails:
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sys.exit ("%d shape fuzzer related tests failed." % fails)