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- import sys
- import unittest
- import StringIO
- import atexit
- from test import test_support
-
- class TestCase(unittest.TestCase):
- def test_args(self):
- # be sure args are handled properly
- s = StringIO.StringIO()
- sys.stdout = sys.stderr = s
- save_handlers = atexit._exithandlers
- atexit._exithandlers = []
- try:
- atexit.register(self.h1)
- atexit.register(self.h4)
- atexit.register(self.h4, 4, kw="abc")
- atexit._run_exitfuncs()
- finally:
- sys.stdout = sys.__stdout__
- sys.stderr = sys.__stderr__
- atexit._exithandlers = save_handlers
- self.assertEqual(s.getvalue(), "h4 (4,) {'kw': 'abc'}\nh4 () {}\nh1\n")
-
- def test_order(self):
- # be sure handlers are executed in reverse order
- s = StringIO.StringIO()
- sys.stdout = sys.stderr = s
- save_handlers = atexit._exithandlers
- atexit._exithandlers = []
- try:
- atexit.register(self.h1)
- atexit.register(self.h2)
- atexit.register(self.h3)
- atexit._run_exitfuncs()
- finally:
- sys.stdout = sys.__stdout__
- sys.stderr = sys.__stderr__
- atexit._exithandlers = save_handlers
- self.assertEqual(s.getvalue(), "h3\nh2\nh1\n")
-
- def test_sys_override(self):
- # be sure a preset sys.exitfunc is handled properly
- s = StringIO.StringIO()
- sys.stdout = sys.stderr = s
- save_handlers = atexit._exithandlers
- atexit._exithandlers = []
- exfunc = sys.exitfunc
- sys.exitfunc = self.h1
- reload(atexit)
- try:
- atexit.register(self.h2)
- atexit._run_exitfuncs()
- finally:
- sys.stdout = sys.__stdout__
- sys.stderr = sys.__stderr__
- atexit._exithandlers = save_handlers
- sys.exitfunc = exfunc
- self.assertEqual(s.getvalue(), "h2\nh1\n")
-
- def test_raise(self):
- # be sure raises are handled properly
- s = StringIO.StringIO()
- sys.stdout = sys.stderr = s
- save_handlers = atexit._exithandlers
- atexit._exithandlers = []
- try:
- atexit.register(self.raise1)
- atexit.register(self.raise2)
- self.assertRaises(TypeError, atexit._run_exitfuncs)
- finally:
- sys.stdout = sys.__stdout__
- sys.stderr = sys.__stderr__
- atexit._exithandlers = save_handlers
-
- ### helpers
- def h1(self):
- print "h1"
-
- def h2(self):
- print "h2"
-
- def h3(self):
- print "h3"
-
- def h4(self, *args, **kwargs):
- print "h4", args, kwargs
-
- def raise1(self):
- raise TypeError
-
- def raise2(self):
- raise SystemError
-
- def test_main():
- test_support.run_unittest(TestCase)
-
-
- if __name__ == "__main__":
- test_main()
-