Mercurial > cpython-lru_cache-weakref

annotate Lib/test/test_imp.py @ 58925:eecf1bef052d 2.6

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Merged revisions 78207 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r78207 | ezio.melotti | 2010-02-17 01:26:09 +0200 (Wed, 17 Feb 2010) | 1 line #7930: fix stripid ........
author Ezio Melotti <ezio.melotti@gmail.com>
date Tue, 16 Feb 2010 23:29:44 +0000
parents 23b452ac1a50
children 6768b2350c57
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1 import imp
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2 import unittest
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3 from test import test_support
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4
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5
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6 class LockTests(unittest.TestCase):
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7
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8 """Very basic test of import lock functions."""
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9
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10 def verify_lock_state(self, expected):
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11 self.failUnlessEqual(imp.lock_held(), expected,
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12 "expected imp.lock_held() to be %r" % expected)
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13 def testLock(self):
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14 LOOPS = 50
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15
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16 # The import lock may already be held, e.g. if the test suite is run
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17 # via "import test.autotest".
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18 lock_held_at_start = imp.lock_held()
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19 self.verify_lock_state(lock_held_at_start)
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20
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21 for i in range(LOOPS):
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22 imp.acquire_lock()
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23 self.verify_lock_state(True)
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24
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25 for i in range(LOOPS):
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26 imp.release_lock()
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27
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28 # The original state should be restored now.
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29 self.verify_lock_state(lock_held_at_start)
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30
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31 if not lock_held_at_start:
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32 try:
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33 imp.release_lock()
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34 except RuntimeError:
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35 pass
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36 else:
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37 self.fail("release_lock() without lock should raise "
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38 "RuntimeError")
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39
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40 class ReloadTests(unittest.TestCase):
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41
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42 """Very basic tests to make sure that imp.reload() operates just like
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43 reload()."""
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44
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45 def test_source(self):
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46 import os
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47 imp.reload(os)
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48
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49 def test_extension(self):
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50 import time
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51 imp.reload(time)
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52
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53 def test_builtin(self):
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54 import marshal
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55 imp.reload(marshal)
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56
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57
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58 def test_main():
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59 tests = [
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60 ReloadTests,
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61 ]
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62 try:
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63 import thread
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64 except ImportError:
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65 pass
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66 else:
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67 tests.append(LockTests)
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68 test_support.run_unittest(*tests)
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69
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70 if __name__ == "__main__":
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71 test_main()