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