| """ |
| Tests run by test_atexit in a subprocess since it clears atexit callbacks. |
| """ |
| import atexit |
| import sys |
| import unittest |
| from test import support |
| |
| |
| class GeneralTest(unittest.TestCase): |
| def setUp(self): |
| atexit._clear() |
| |
| def tearDown(self): |
| atexit._clear() |
| |
| def assert_raises_unraisable(self, exc_type, func, *args): |
| with support.catch_unraisable_exception() as cm: |
| atexit.register(func, *args) |
| atexit._run_exitfuncs() |
| |
| self.assertEqual(cm.unraisable.object, func) |
| self.assertEqual(cm.unraisable.exc_type, exc_type) |
| self.assertEqual(type(cm.unraisable.exc_value), exc_type) |
| |
| def test_order(self): |
| # Check that callbacks are called in reverse order with the expected |
| # positional and keyword arguments. |
| calls = [] |
| |
| def func1(*args, **kwargs): |
| calls.append(('func1', args, kwargs)) |
| |
| def func2(*args, **kwargs): |
| calls.append(('func2', args, kwargs)) |
| |
| # be sure args are handled properly |
| atexit.register(func1, 1, 2) |
| atexit.register(func2) |
| atexit.register(func2, 3, key="value") |
| atexit._run_exitfuncs() |
| |
| self.assertEqual(calls, |
| [('func2', (3,), {'key': 'value'}), |
| ('func2', (), {}), |
| ('func1', (1, 2), {})]) |
| |
| def test_badargs(self): |
| def func(): |
| pass |
| |
| # func() has no parameter, but it's called with 2 parameters |
| self.assert_raises_unraisable(TypeError, func, 1 ,2) |
| |
| def test_raise(self): |
| def raise_type_error(): |
| raise TypeError |
| |
| self.assert_raises_unraisable(TypeError, raise_type_error) |
| |
| def test_raise_unnormalized(self): |
| # bpo-10756: Make sure that an unnormalized exception is handled |
| # properly. |
| def div_zero(): |
| 1 / 0 |
| |
| self.assert_raises_unraisable(ZeroDivisionError, div_zero) |
| |
| def test_exit(self): |
| self.assert_raises_unraisable(SystemExit, sys.exit) |
| |
| def test_stress(self): |
| a = [0] |
| def inc(): |
| a[0] += 1 |
| |
| for i in range(128): |
| atexit.register(inc) |
| atexit._run_exitfuncs() |
| |
| self.assertEqual(a[0], 128) |
| |
| def test_clear(self): |
| a = [0] |
| def inc(): |
| a[0] += 1 |
| |
| atexit.register(inc) |
| atexit._clear() |
| atexit._run_exitfuncs() |
| |
| self.assertEqual(a[0], 0) |
| |
| def test_unregister(self): |
| a = [0] |
| def inc(): |
| a[0] += 1 |
| def dec(): |
| a[0] -= 1 |
| |
| for i in range(4): |
| atexit.register(inc) |
| atexit.register(dec) |
| atexit.unregister(inc) |
| atexit._run_exitfuncs() |
| |
| self.assertEqual(a[0], -1) |
| |
| def test_bound_methods(self): |
| l = [] |
| atexit.register(l.append, 5) |
| atexit._run_exitfuncs() |
| self.assertEqual(l, [5]) |
| |
| atexit.unregister(l.append) |
| atexit._run_exitfuncs() |
| self.assertEqual(l, [5]) |
| |
| def test_atexit_with_unregistered_function(self): |
| # See bpo-46025 for more info |
| def func(): |
| atexit.unregister(func) |
| 1/0 |
| atexit.register(func) |
| try: |
| with support.catch_unraisable_exception() as cm: |
| atexit._run_exitfuncs() |
| self.assertEqual(cm.unraisable.object, func) |
| self.assertEqual(cm.unraisable.exc_type, ZeroDivisionError) |
| self.assertEqual(type(cm.unraisable.exc_value), ZeroDivisionError) |
| finally: |
| atexit.unregister(func) |
| |
| |
| if __name__ == "__main__": |
| unittest.main() |