Imported Upstream version 2.6.4
[platform/upstream/harfbuzz.git] / test / fuzzing / run-subset-fuzzer-tests.py
1 #!/usr/bin/env python
2
3 from __future__ import print_function, division, absolute_import
4
5 import sys, os, subprocess, tempfile, threading
6
7
8 def which(program):
9         # https://stackoverflow.com/a/377028
10         def is_exe(fpath):
11                 return os.path.isfile(fpath) and os.access(fpath, os.X_OK)
12
13         fpath, _ = os.path.split(program)
14         if fpath:
15                 if is_exe(program):
16                         return program
17         else:
18                 for path in os.environ["PATH"].split(os.pathsep):
19                         exe_file = os.path.join(path, program)
20                         if is_exe(exe_file):
21                                 return exe_file
22
23         return None
24
25
26 def cmd(command):
27         # https://stackoverflow.com/a/4408409
28         # https://stackoverflow.com/a/10012262
29         with tempfile.TemporaryFile() as tempf:
30                 p = subprocess.Popen (command, stderr=tempf)
31                 is_killed = {'value': False}
32
33                 def timeout(p, is_killed):
34                         is_killed['value'] = True
35                         p.kill()
36                 timeout_seconds = int (os.environ.get ("HB_TEST_SUBSET_FUZZER_TIMEOUT", "8"))
37                 timer = threading.Timer (timeout_seconds, timeout, [p, is_killed])
38
39                 try:
40                         timer.start()
41                         p.wait ()
42                         tempf.seek (0)
43                         text = tempf.read ()
44
45                         #TODO: Detect debug mode with a better way
46                         is_debug_mode = b"SANITIZE" in text
47
48                         text = "" if is_debug_mode else text.decode ("utf-8").strip ()
49                         returncode = p.returncode
50                 finally:
51                         timer.cancel()
52
53                 if is_killed['value']:
54                         text = 'error: timeout, ' + text
55                         returncode = 1
56
57                 return text, returncode
58
59
60 srcdir = os.environ.get ("srcdir", ".")
61 EXEEXT = os.environ.get ("EXEEXT", "")
62 top_builddir = os.environ.get ("top_builddir", ".")
63 hb_subset_fuzzer = os.path.join (top_builddir, "hb-subset-fuzzer" + EXEEXT)
64
65 if not os.path.exists (hb_subset_fuzzer):
66         if len (sys.argv) < 2 or not os.path.exists (sys.argv[1]):
67                 print ("""Failed to find hb-subset-fuzzer binary automatically,
68 please provide it as the first argument to the tool""")
69                 sys.exit (1)
70
71         hb_subset_fuzzer = sys.argv[1]
72
73 print ('hb_subset_fuzzer:', hb_subset_fuzzer)
74 fails = 0
75
76 libtool = os.environ.get('LIBTOOL')
77 valgrind = None
78 if os.environ.get('RUN_VALGRIND', ''):
79         valgrind = which ('valgrind')
80         if valgrind is None:
81                 print ("""Valgrind requested but not found.""")
82                 sys.exit (1)
83         if libtool is None:
84                 print ("""Valgrind support is currently autotools only and needs libtool but not found.""")
85
86
87 def run_dir (parent_path):
88         global fails
89         for file in os.listdir (parent_path):
90                 path = os.path.join(parent_path, file)
91                 # TODO: Run on all the fonts not just subset related ones
92                 if "subset" not in path: continue
93
94                 print ("running subset fuzzer against %s" % path)
95                 if valgrind:
96                         text, returncode = cmd (libtool.split(' ') + ['--mode=execute', valgrind + ' --leak-check=full --show-leak-kinds=all --error-exitcode=1', '--', hb_subset_fuzzer, path])
97                 else:
98                         text, returncode = cmd ([hb_subset_fuzzer, path])
99                         if 'error' in text:
100                                 returncode = 1
101
102                 if (not valgrind or returncode) and text.strip ():
103                         print (text)
104
105                 if returncode != 0:
106                         print ("failed for %s" % path)
107                         fails = fails + 1
108
109
110 run_dir (os.path.join (srcdir, "..", "subset", "data", "fonts"))
111 run_dir (os.path.join (srcdir, "fonts"))
112
113 if fails:
114         print ("%i subset fuzzer related tests failed." % fails)
115         sys.exit (1)