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120 lines
2.6 KiB
Python
120 lines
2.6 KiB
Python
import sys
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import unittest
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import io
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import atexit
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from test import support
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### helpers
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def h1():
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print("h1")
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def h2():
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print("h2")
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def h3():
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print("h3")
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def h4(*args, **kwargs):
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print("h4", args, kwargs)
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def raise1():
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raise TypeError
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def raise2():
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raise SystemError
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class TestCase(unittest.TestCase):
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def setUp(self):
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self.stream = io.StringIO()
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self.save_stdout, self.save_stderr = sys.stderr, sys.stdout
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sys.stdout = sys.stderr = self.stream
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atexit._clear()
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def tearDown(self):
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sys.stdout = self.save_stdout
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sys.stderr = self.save_stderr
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atexit._clear()
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def test_args(self):
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# be sure args are handled properly
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atexit.register(h1)
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atexit.register(h4)
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atexit.register(h4, 4, kw="abc")
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atexit._run_exitfuncs()
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self.assertEqual(self.stream.getvalue(),
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"h4 (4,) {'kw': 'abc'}\nh4 () {}\nh1\n")
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def test_badargs(self):
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atexit.register(lambda: 1, 0, 0, (x for x in (1,2)), 0, 0)
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self.assertRaises(TypeError, atexit._run_exitfuncs)
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def test_order(self):
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# be sure handlers are executed in reverse order
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atexit.register(h1)
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atexit.register(h2)
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atexit.register(h3)
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atexit._run_exitfuncs()
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self.assertEqual(self.stream.getvalue(), "h3\nh2\nh1\n")
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def test_raise(self):
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# be sure raises are handled properly
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atexit.register(raise1)
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atexit.register(raise2)
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self.assertRaises(TypeError, atexit._run_exitfuncs)
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def test_stress(self):
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a = [0]
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def inc():
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a[0] += 1
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for i in range(128):
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atexit.register(inc)
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atexit._run_exitfuncs()
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self.assertEqual(a[0], 128)
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def test_clear(self):
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a = [0]
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def inc():
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a[0] += 1
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atexit.register(inc)
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atexit._clear()
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atexit._run_exitfuncs()
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self.assertEqual(a[0], 0)
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def test_unregister(self):
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a = [0]
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def inc():
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a[0] += 1
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def dec():
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a[0] -= 1
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for i in range(4):
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atexit.register(inc)
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atexit.register(dec)
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atexit.unregister(inc)
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atexit._run_exitfuncs()
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self.assertEqual(a[0], -1)
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def test_bound_methods(self):
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l = []
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atexit.register(l.append, 5)
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atexit._run_exitfuncs()
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self.assertEqual(l, [5])
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atexit.unregister(l.append)
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atexit._run_exitfuncs()
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self.assertEqual(l, [5])
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def test_main():
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support.run_unittest(TestCase)
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if __name__ == "__main__":
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test_main()
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