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			35 lines
		
	
	
	
		
			1,000 B
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			35 lines
		
	
	
	
		
			1,000 B
		
	
	
	
		
			Python
		
	
	
	
	
	
import unittest
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import test.test_support
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mutex = test.test_support.import_module("mutex", deprecated=True)
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class MutexTest(unittest.TestCase):
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    def test_lock_and_unlock(self):
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        def called_by_mutex(some_data):
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            self.assertEqual(some_data, "spam")
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            self.assertTrue(m.test(), "mutex not held")
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            # Nested locking
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            m.lock(called_by_mutex2, "eggs")
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        def called_by_mutex2(some_data):
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            self.assertEquals(some_data, "eggs")
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            self.assertTrue(m.test(), "mutex not held")
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            self.assertTrue(ready_for_2,
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                         "called_by_mutex2 called too soon")
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        m = mutex.mutex()
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        read_for_2 = False
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        m.lock(called_by_mutex, "spam")
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        ready_for_2 = True
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        # unlock both locks
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        m.unlock()
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        m.unlock()
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        self.assertFalse(m.test(), "mutex still held")
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def test_main():
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    test.test_support.run_unittest(MutexTest)
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if __name__ == "__main__":
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    test_main()
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