python (3.11.7)
1 """
2 Create and delete FILES_PER_THREAD temp files (via tempfile.TemporaryFile)
3 in each of NUM_THREADS threads, recording the number of successes and
4 failures. A failure is a bug in tempfile, and may be due to:
5
6 + Trying to create more than one tempfile with the same name.
7 + Trying to delete a tempfile that doesn't still exist.
8 + Something we've never seen before.
9
10 By default, NUM_THREADS == 20 and FILES_PER_THREAD == 50. This is enough to
11 create about 150 failures per run under Win98SE in 2.0, and runs pretty
12 quickly. Guido reports needing to boost FILES_PER_THREAD to 500 before
13 provoking a 2.0 failure under Linux.
14 """
15
16 import tempfile
17
18 from test.support import threading_helper
19 import unittest
20 import io
21 import threading
22 from traceback import print_exc
23
24 threading_helper.requires_working_threading(module=True)
25
26 NUM_THREADS = 20
27 FILES_PER_THREAD = 50
28
29
30 startEvent = threading.Event()
31
32
33 class ESC[4;38;5;81mTempFileGreedy(ESC[4;38;5;149mthreadingESC[4;38;5;149m.ESC[4;38;5;149mThread):
34 error_count = 0
35 ok_count = 0
36
37 def run(self):
38 self.errors = io.StringIO()
39 startEvent.wait()
40 for i in range(FILES_PER_THREAD):
41 try:
42 f = tempfile.TemporaryFile("w+b")
43 f.close()
44 except:
45 self.error_count += 1
46 print_exc(file=self.errors)
47 else:
48 self.ok_count += 1
49
50
51 class ESC[4;38;5;81mThreadedTempFileTest(ESC[4;38;5;149munittestESC[4;38;5;149m.ESC[4;38;5;149mTestCase):
52 def test_main(self):
53 threads = [TempFileGreedy() for i in range(NUM_THREADS)]
54 with threading_helper.start_threads(threads, startEvent.set):
55 pass
56 ok = sum(t.ok_count for t in threads)
57 errors = [str(t.name) + str(t.errors.getvalue())
58 for t in threads if t.error_count]
59
60 msg = "Errors: errors %d ok %d\n%s" % (len(errors), ok,
61 '\n'.join(errors))
62 self.assertEqual(errors, [], msg)
63 self.assertEqual(ok, NUM_THREADS * FILES_PER_THREAD)
64
65 if __name__ == "__main__":
66 unittest.main()
Browse
Usage
Versions