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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,145 @@ | ||
| import re | ||
| import sys | ||
| import unittest | ||
|
|
||
| from test import support | ||
| from test.support import import_helper | ||
| from test.support.script_helper import assert_python_failure | ||
|
|
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| from .test_misc import decode_stderr | ||
|
|
||
| # Skip this test if the _testcapi module isn't available. | ||
| _testcapi = import_helper.import_module('_testcapi') | ||
|
|
||
| class Test_Exceptions(unittest.TestCase): | ||
|
|
||
| def test_exception(self): | ||
| raised_exception = ValueError("5") | ||
| new_exc = TypeError("TEST") | ||
| try: | ||
| raise raised_exception | ||
| except ValueError as e: | ||
| orig_sys_exception = sys.exception() | ||
| orig_exception = _testcapi.set_exception(new_exc) | ||
| new_sys_exception = sys.exception() | ||
| new_exception = _testcapi.set_exception(orig_exception) | ||
| reset_sys_exception = sys.exception() | ||
|
|
||
| self.assertEqual(orig_exception, e) | ||
|
|
||
| self.assertEqual(orig_exception, raised_exception) | ||
| self.assertEqual(orig_sys_exception, orig_exception) | ||
| self.assertEqual(reset_sys_exception, orig_exception) | ||
| self.assertEqual(new_exception, new_exc) | ||
| self.assertEqual(new_sys_exception, new_exception) | ||
| else: | ||
| self.fail("Exception not raised") | ||
|
|
||
| def test_exc_info(self): | ||
| raised_exception = ValueError("5") | ||
| new_exc = TypeError("TEST") | ||
| try: | ||
| raise raised_exception | ||
| except ValueError as e: | ||
| tb = e.__traceback__ | ||
| orig_sys_exc_info = sys.exc_info() | ||
| orig_exc_info = _testcapi.set_exc_info(new_exc.__class__, new_exc, None) | ||
| new_sys_exc_info = sys.exc_info() | ||
| new_exc_info = _testcapi.set_exc_info(*orig_exc_info) | ||
| reset_sys_exc_info = sys.exc_info() | ||
|
|
||
| self.assertEqual(orig_exc_info[1], e) | ||
|
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| self.assertSequenceEqual(orig_exc_info, (raised_exception.__class__, raised_exception, tb)) | ||
| self.assertSequenceEqual(orig_sys_exc_info, orig_exc_info) | ||
| self.assertSequenceEqual(reset_sys_exc_info, orig_exc_info) | ||
| self.assertSequenceEqual(new_exc_info, (new_exc.__class__, new_exc, None)) | ||
| self.assertSequenceEqual(new_sys_exc_info, new_exc_info) | ||
| else: | ||
| self.assertTrue(False) | ||
|
|
||
|
|
||
| class Test_FatalError(unittest.TestCase): | ||
|
|
||
| def check_fatal_error(self, code, expected, not_expected=()): | ||
| with support.SuppressCrashReport(): | ||
| rc, out, err = assert_python_failure('-sSI', '-c', code) | ||
|
|
||
| err = decode_stderr(err) | ||
| self.assertIn('Fatal Python error: test_fatal_error: MESSAGE\n', | ||
| err) | ||
|
|
||
| match = re.search(r'^Extension modules:(.*) \(total: ([0-9]+)\)$', | ||
| err, re.MULTILINE) | ||
| if not match: | ||
| self.fail(f"Cannot find 'Extension modules:' in {err!r}") | ||
| modules = set(match.group(1).strip().split(', ')) | ||
| total = int(match.group(2)) | ||
|
|
||
| for name in expected: | ||
| self.assertIn(name, modules) | ||
| for name in not_expected: | ||
| self.assertNotIn(name, modules) | ||
| self.assertEqual(len(modules), total) | ||
|
|
||
| @support.requires_subprocess() | ||
| def test_fatal_error(self): | ||
| # By default, stdlib extension modules are ignored, | ||
| # but not test modules. | ||
| expected = ('_testcapi',) | ||
| not_expected = ('sys',) | ||
| code = 'import _testcapi, sys; _testcapi.fatal_error(b"MESSAGE")' | ||
| self.check_fatal_error(code, expected, not_expected) | ||
|
|
||
| # Mark _testcapi as stdlib module, but not sys | ||
| expected = ('sys',) | ||
| not_expected = ('_testcapi',) | ||
| code = """if True: | ||
| import _testcapi, sys | ||
| sys.stdlib_module_names = frozenset({"_testcapi"}) | ||
| _testcapi.fatal_error(b"MESSAGE") | ||
| """ | ||
| self.check_fatal_error(code, expected) | ||
|
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||
|
|
||
| class Test_ErrSetAndRestore(unittest.TestCase): | ||
|
|
||
| def test_err_set_raised(self): | ||
| with self.assertRaises(ValueError): | ||
| _testcapi.err_set_raised(ValueError()) | ||
| v = ValueError() | ||
| try: | ||
| _testcapi.err_set_raised(v) | ||
| except ValueError as ex: | ||
| self.assertIs(v, ex) | ||
|
|
||
| def test_err_restore(self): | ||
| with self.assertRaises(ValueError): | ||
| _testcapi.err_restore(ValueError) | ||
| with self.assertRaises(ValueError): | ||
| _testcapi.err_restore(ValueError, 1) | ||
| with self.assertRaises(ValueError): | ||
| _testcapi.err_restore(ValueError, 1, None) | ||
| with self.assertRaises(ValueError): | ||
| _testcapi.err_restore(ValueError, ValueError()) | ||
| try: | ||
| _testcapi.err_restore(KeyError, "hi") | ||
| except KeyError as k: | ||
| self.assertEqual("hi", k.args[0]) | ||
| try: | ||
| 1/0 | ||
| except Exception as e: | ||
| tb = e.__traceback__ | ||
| with self.assertRaises(ValueError): | ||
| _testcapi.err_restore(ValueError, 1, tb) | ||
| with self.assertRaises(TypeError): | ||
| _testcapi.err_restore(ValueError, 1, 0) | ||
| try: | ||
| _testcapi.err_restore(ValueError, 1, tb) | ||
| except ValueError as v: | ||
| self.assertEqual(1, v.args[0]) | ||
| self.assertIs(tb, v.__traceback__.tb_next) | ||
|
|
||
|
|
||
| if __name__ == "__main__": | ||
| unittest.main() |
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