kc3-lang/harfbuzz/test/fuzzing/run-shape-fuzzer-tests.py

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• Hash : ad3ceded
  Author :
  Date : 2018-10-29T22:53:16
  

  [fuzzing] Make test runners less verbose
  

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

• #!/usr/bin/env python
  
  from __future__ import print_function, division, absolute_import
  
  import sys, os, subprocess, tempfile, threading
  
  
  def which(program):
  	# https://stackoverflow.com/a/377028
  	def is_exe(fpath):
  		return os.path.isfile(fpath) and os.access(fpath, os.X_OK)
  
  	fpath, _ = os.path.split(program)
  	if fpath:
  		if is_exe(program):
  			return program
  	else:
  		for path in os.environ["PATH"].split(os.pathsep):
  			exe_file = os.path.join(path, program)
  			if is_exe(exe_file):
  				return exe_file
  
  	return None
  
  
  def cmd(command):
  	# https://stackoverflow.com/a/4408409
  	# https://stackoverflow.com/a/10012262
  	with tempfile.TemporaryFile() as tempf:
  		p = subprocess.Popen (command, stderr=tempf)
  		is_killed = {'value': False}
  
  		def timeout(p, is_killed):
  			is_killed['value'] = True
  			p.kill()
  		timer = threading.Timer (2, timeout, [p, is_killed])
  
  		try:
  			timer.start()
  			p.wait ()
  			tempf.seek (0)
  			text = tempf.read().decode ("utf-8").strip ()
  			returncode = p.returncode
  		finally:
  			timer.cancel()
  
  		if is_killed['value']:
  			text = 'error: timeout, ' + text
  			returncode = 1
  
  		return text, returncode
  
  
  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]):
  		print ("""Failed to find hb-shape-fuzzer binary automatically,
  please provide it as the first argument to the tool""")
  		sys.exit (1)
  
  	hb_shape_fuzzer = sys.argv[1]
  
  print ('hb_shape_fuzzer:', hb_shape_fuzzer)
  fails = 0
  
  valgrind = None
  if os.environ.get('RUN_VALGRIND', ''):
  	valgrind = which ('valgrind')
  
  parent_path = os.path.join (srcdir, "fonts")
  for file in os.listdir (parent_path):
  	path = os.path.join(parent_path, file)
  
  	text, returncode = cmd ([hb_shape_fuzzer, path])
  	if text.strip ():
  		print (text)
  
  	failed = False
  	if returncode != 0 or 'error' in text:
  		print ('failure on %s' % file)
  		failed = True
  
  	if valgrind:
  		text, returncode = cmd ([valgrind, '--error-exitcode=1', hb_shape_fuzzer, path])
  		if returncode:
  			print (text)
  			print ('failure on %s' % file)
  			failed = True
  
  	if failed:
  		fails = fails + 1
  
  if fails:
  	print ("%i shape fuzzer related tests failed." % fails)
  	sys.exit (1)
  

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