mirror of
https://github.com/python/cpython.git
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32ac98e899
Automate WASM build with a new Python script. The script provides several build profiles with configure flags for Emscripten flavors and WASI. The script can detect and use Emscripten SDK and WASI SDK from default locations or env vars. ``configure`` now detects Node arguments and creates HOSTRUNNER arguments for Node 16. It also sets correct arguments for ``wasm64-emscripten``. Co-authored-by: Brett Cannon <brett@python.org>
1342 lines
55 KiB
Python
1342 lines
55 KiB
Python
from contextlib import contextmanager
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import linecache
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import os
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from io import StringIO
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import re
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import sys
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import textwrap
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import unittest
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from test import support
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from test.support import import_helper
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from test.support import os_helper
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from test.support import warnings_helper
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from test.support.script_helper import assert_python_ok, assert_python_failure
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from test.test_warnings.data import stacklevel as warning_tests
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import warnings as original_warnings
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py_warnings = import_helper.import_fresh_module('warnings',
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blocked=['_warnings'])
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c_warnings = import_helper.import_fresh_module('warnings',
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fresh=['_warnings'])
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@contextmanager
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def warnings_state(module):
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"""Use a specific warnings implementation in warning_tests."""
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global __warningregistry__
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for to_clear in (sys, warning_tests):
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try:
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to_clear.__warningregistry__.clear()
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except AttributeError:
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pass
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try:
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__warningregistry__.clear()
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except NameError:
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pass
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original_warnings = warning_tests.warnings
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original_filters = module.filters
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try:
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module.filters = original_filters[:]
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module.simplefilter("once")
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warning_tests.warnings = module
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yield
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finally:
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warning_tests.warnings = original_warnings
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module.filters = original_filters
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class TestWarning(Warning):
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pass
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class BaseTest:
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"""Basic bookkeeping required for testing."""
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def setUp(self):
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self.old_unittest_module = unittest.case.warnings
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# The __warningregistry__ needs to be in a pristine state for tests
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# to work properly.
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if '__warningregistry__' in globals():
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del globals()['__warningregistry__']
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if hasattr(warning_tests, '__warningregistry__'):
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del warning_tests.__warningregistry__
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if hasattr(sys, '__warningregistry__'):
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del sys.__warningregistry__
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# The 'warnings' module must be explicitly set so that the proper
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# interaction between _warnings and 'warnings' can be controlled.
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sys.modules['warnings'] = self.module
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# Ensure that unittest.TestCase.assertWarns() uses the same warnings
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# module than warnings.catch_warnings(). Otherwise,
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# warnings.catch_warnings() will be unable to remove the added filter.
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unittest.case.warnings = self.module
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super(BaseTest, self).setUp()
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def tearDown(self):
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sys.modules['warnings'] = original_warnings
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unittest.case.warnings = self.old_unittest_module
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super(BaseTest, self).tearDown()
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class PublicAPITests(BaseTest):
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"""Ensures that the correct values are exposed in the
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public API.
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"""
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def test_module_all_attribute(self):
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self.assertTrue(hasattr(self.module, '__all__'))
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target_api = ["warn", "warn_explicit", "showwarning",
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"formatwarning", "filterwarnings", "simplefilter",
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"resetwarnings", "catch_warnings"]
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self.assertSetEqual(set(self.module.__all__),
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set(target_api))
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class CPublicAPITests(PublicAPITests, unittest.TestCase):
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module = c_warnings
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class PyPublicAPITests(PublicAPITests, unittest.TestCase):
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module = py_warnings
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class FilterTests(BaseTest):
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"""Testing the filtering functionality."""
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def test_error(self):
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with original_warnings.catch_warnings(module=self.module) as w:
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self.module.resetwarnings()
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self.module.filterwarnings("error", category=UserWarning)
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self.assertRaises(UserWarning, self.module.warn,
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"FilterTests.test_error")
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def test_error_after_default(self):
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with original_warnings.catch_warnings(module=self.module) as w:
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self.module.resetwarnings()
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message = "FilterTests.test_ignore_after_default"
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def f():
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self.module.warn(message, UserWarning)
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with support.captured_stderr() as stderr:
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f()
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stderr = stderr.getvalue()
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self.assertIn("UserWarning: FilterTests.test_ignore_after_default",
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stderr)
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self.assertIn("self.module.warn(message, UserWarning)",
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stderr)
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self.module.filterwarnings("error", category=UserWarning)
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self.assertRaises(UserWarning, f)
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def test_ignore(self):
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with original_warnings.catch_warnings(record=True,
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module=self.module) as w:
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self.module.resetwarnings()
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self.module.filterwarnings("ignore", category=UserWarning)
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self.module.warn("FilterTests.test_ignore", UserWarning)
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self.assertEqual(len(w), 0)
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self.assertEqual(list(__warningregistry__), ['version'])
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def test_ignore_after_default(self):
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with original_warnings.catch_warnings(record=True,
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module=self.module) as w:
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self.module.resetwarnings()
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message = "FilterTests.test_ignore_after_default"
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def f():
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self.module.warn(message, UserWarning)
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f()
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self.module.filterwarnings("ignore", category=UserWarning)
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f()
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f()
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self.assertEqual(len(w), 1)
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def test_always(self):
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with original_warnings.catch_warnings(record=True,
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module=self.module) as w:
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self.module.resetwarnings()
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self.module.filterwarnings("always", category=UserWarning)
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message = "FilterTests.test_always"
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def f():
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self.module.warn(message, UserWarning)
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f()
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self.assertEqual(len(w), 1)
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self.assertEqual(w[-1].message.args[0], message)
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f()
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self.assertEqual(len(w), 2)
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self.assertEqual(w[-1].message.args[0], message)
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def test_always_after_default(self):
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with original_warnings.catch_warnings(record=True,
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module=self.module) as w:
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self.module.resetwarnings()
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message = "FilterTests.test_always_after_ignore"
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def f():
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self.module.warn(message, UserWarning)
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f()
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self.assertEqual(len(w), 1)
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self.assertEqual(w[-1].message.args[0], message)
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f()
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self.assertEqual(len(w), 1)
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self.module.filterwarnings("always", category=UserWarning)
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f()
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self.assertEqual(len(w), 2)
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self.assertEqual(w[-1].message.args[0], message)
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f()
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self.assertEqual(len(w), 3)
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self.assertEqual(w[-1].message.args[0], message)
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def test_default(self):
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with original_warnings.catch_warnings(record=True,
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module=self.module) as w:
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self.module.resetwarnings()
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self.module.filterwarnings("default", category=UserWarning)
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message = UserWarning("FilterTests.test_default")
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for x in range(2):
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self.module.warn(message, UserWarning)
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if x == 0:
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self.assertEqual(w[-1].message, message)
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del w[:]
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elif x == 1:
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self.assertEqual(len(w), 0)
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else:
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raise ValueError("loop variant unhandled")
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def test_module(self):
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with original_warnings.catch_warnings(record=True,
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module=self.module) as w:
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self.module.resetwarnings()
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self.module.filterwarnings("module", category=UserWarning)
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message = UserWarning("FilterTests.test_module")
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self.module.warn(message, UserWarning)
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self.assertEqual(w[-1].message, message)
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del w[:]
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self.module.warn(message, UserWarning)
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self.assertEqual(len(w), 0)
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def test_once(self):
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with original_warnings.catch_warnings(record=True,
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module=self.module) as w:
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self.module.resetwarnings()
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self.module.filterwarnings("once", category=UserWarning)
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message = UserWarning("FilterTests.test_once")
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self.module.warn_explicit(message, UserWarning, "__init__.py",
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42)
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self.assertEqual(w[-1].message, message)
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del w[:]
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self.module.warn_explicit(message, UserWarning, "__init__.py",
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13)
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self.assertEqual(len(w), 0)
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self.module.warn_explicit(message, UserWarning, "test_warnings2.py",
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42)
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self.assertEqual(len(w), 0)
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def test_module_globals(self):
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with original_warnings.catch_warnings(record=True,
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module=self.module) as w:
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self.module.simplefilter("always", UserWarning)
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# bpo-33509: module_globals=None must not crash
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self.module.warn_explicit('msg', UserWarning, "filename", 42,
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module_globals=None)
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self.assertEqual(len(w), 1)
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# Invalid module_globals type
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with self.assertRaises(TypeError):
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self.module.warn_explicit('msg', UserWarning, "filename", 42,
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module_globals=True)
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self.assertEqual(len(w), 1)
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# Empty module_globals
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self.module.warn_explicit('msg', UserWarning, "filename", 42,
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module_globals={})
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self.assertEqual(len(w), 2)
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def test_inheritance(self):
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with original_warnings.catch_warnings(module=self.module) as w:
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self.module.resetwarnings()
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self.module.filterwarnings("error", category=Warning)
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self.assertRaises(UserWarning, self.module.warn,
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"FilterTests.test_inheritance", UserWarning)
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def test_ordering(self):
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with original_warnings.catch_warnings(record=True,
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module=self.module) as w:
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self.module.resetwarnings()
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self.module.filterwarnings("ignore", category=UserWarning)
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self.module.filterwarnings("error", category=UserWarning,
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append=True)
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del w[:]
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try:
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self.module.warn("FilterTests.test_ordering", UserWarning)
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except UserWarning:
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self.fail("order handling for actions failed")
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self.assertEqual(len(w), 0)
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def test_filterwarnings(self):
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# Test filterwarnings().
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# Implicitly also tests resetwarnings().
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with original_warnings.catch_warnings(record=True,
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module=self.module) as w:
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self.module.filterwarnings("error", "", Warning, "", 0)
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self.assertRaises(UserWarning, self.module.warn, 'convert to error')
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self.module.resetwarnings()
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text = 'handle normally'
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self.module.warn(text)
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self.assertEqual(str(w[-1].message), text)
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self.assertIs(w[-1].category, UserWarning)
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self.module.filterwarnings("ignore", "", Warning, "", 0)
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text = 'filtered out'
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self.module.warn(text)
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self.assertNotEqual(str(w[-1].message), text)
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self.module.resetwarnings()
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self.module.filterwarnings("error", "hex*", Warning, "", 0)
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self.assertRaises(UserWarning, self.module.warn, 'hex/oct')
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text = 'nonmatching text'
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self.module.warn(text)
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self.assertEqual(str(w[-1].message), text)
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self.assertIs(w[-1].category, UserWarning)
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def test_message_matching(self):
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with original_warnings.catch_warnings(record=True,
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module=self.module) as w:
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self.module.simplefilter("ignore", UserWarning)
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self.module.filterwarnings("error", "match", UserWarning)
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self.assertRaises(UserWarning, self.module.warn, "match")
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self.assertRaises(UserWarning, self.module.warn, "match prefix")
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self.module.warn("suffix match")
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self.assertEqual(w, [])
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self.module.warn("something completely different")
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self.assertEqual(w, [])
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def test_mutate_filter_list(self):
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class X:
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def match(self, a):
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L[:] = []
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L = [("default",X(),UserWarning,X(),0) for i in range(2)]
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with original_warnings.catch_warnings(record=True,
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module=self.module) as w:
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self.module.filters = L
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self.module.warn_explicit(UserWarning("b"), None, "f.py", 42)
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self.assertEqual(str(w[-1].message), "b")
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def test_filterwarnings_duplicate_filters(self):
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with original_warnings.catch_warnings(module=self.module):
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self.module.resetwarnings()
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self.module.filterwarnings("error", category=UserWarning)
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self.assertEqual(len(self.module.filters), 1)
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self.module.filterwarnings("ignore", category=UserWarning)
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self.module.filterwarnings("error", category=UserWarning)
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self.assertEqual(
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len(self.module.filters), 2,
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"filterwarnings inserted duplicate filter"
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)
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self.assertEqual(
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self.module.filters[0][0], "error",
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"filterwarnings did not promote filter to "
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"the beginning of list"
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)
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def test_simplefilter_duplicate_filters(self):
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with original_warnings.catch_warnings(module=self.module):
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self.module.resetwarnings()
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self.module.simplefilter("error", category=UserWarning)
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self.assertEqual(len(self.module.filters), 1)
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self.module.simplefilter("ignore", category=UserWarning)
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self.module.simplefilter("error", category=UserWarning)
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self.assertEqual(
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len(self.module.filters), 2,
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"simplefilter inserted duplicate filter"
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)
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self.assertEqual(
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self.module.filters[0][0], "error",
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"simplefilter did not promote filter to the beginning of list"
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)
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def test_append_duplicate(self):
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with original_warnings.catch_warnings(module=self.module,
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record=True) as w:
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self.module.resetwarnings()
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self.module.simplefilter("ignore")
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self.module.simplefilter("error", append=True)
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self.module.simplefilter("ignore", append=True)
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self.module.warn("test_append_duplicate", category=UserWarning)
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self.assertEqual(len(self.module.filters), 2,
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"simplefilter inserted duplicate filter"
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)
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self.assertEqual(len(w), 0,
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"appended duplicate changed order of filters"
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)
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def test_catchwarnings_with_simplefilter_ignore(self):
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with original_warnings.catch_warnings(module=self.module):
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self.module.resetwarnings()
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self.module.simplefilter("error")
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with self.module.catch_warnings(
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module=self.module, action="ignore"
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):
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self.module.warn("This will be ignored")
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def test_catchwarnings_with_simplefilter_error(self):
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with original_warnings.catch_warnings(module=self.module):
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self.module.resetwarnings()
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with self.module.catch_warnings(
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module=self.module, action="error", category=FutureWarning
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):
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self.module.warn("Other types of warnings are not errors")
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self.assertRaises(FutureWarning,
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self.module.warn, FutureWarning("msg"))
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class CFilterTests(FilterTests, unittest.TestCase):
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module = c_warnings
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class PyFilterTests(FilterTests, unittest.TestCase):
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module = py_warnings
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|
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class WarnTests(BaseTest):
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"""Test warnings.warn() and warnings.warn_explicit()."""
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def test_message(self):
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with original_warnings.catch_warnings(record=True,
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module=self.module) as w:
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self.module.simplefilter("once")
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for i in range(4):
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text = 'multi %d' %i # Different text on each call.
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self.module.warn(text)
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self.assertEqual(str(w[-1].message), text)
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self.assertIs(w[-1].category, UserWarning)
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|
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# Issue 3639
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def test_warn_nonstandard_types(self):
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# warn() should handle non-standard types without issue.
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for ob in (Warning, None, 42):
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with original_warnings.catch_warnings(record=True,
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module=self.module) as w:
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self.module.simplefilter("once")
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self.module.warn(ob)
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# Don't directly compare objects since
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# ``Warning() != Warning()``.
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self.assertEqual(str(w[-1].message), str(UserWarning(ob)))
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|
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def test_filename(self):
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with warnings_state(self.module):
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with original_warnings.catch_warnings(record=True,
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module=self.module) as w:
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warning_tests.inner("spam1")
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self.assertEqual(os.path.basename(w[-1].filename),
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"stacklevel.py")
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warning_tests.outer("spam2")
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self.assertEqual(os.path.basename(w[-1].filename),
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"stacklevel.py")
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|
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def test_stacklevel(self):
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# Test stacklevel argument
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# make sure all messages are different, so the warning won't be skipped
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with warnings_state(self.module):
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with original_warnings.catch_warnings(record=True,
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module=self.module) as w:
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warning_tests.inner("spam3", stacklevel=1)
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self.assertEqual(os.path.basename(w[-1].filename),
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"stacklevel.py")
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warning_tests.outer("spam4", stacklevel=1)
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self.assertEqual(os.path.basename(w[-1].filename),
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"stacklevel.py")
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warning_tests.inner("spam5", stacklevel=2)
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self.assertEqual(os.path.basename(w[-1].filename),
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"__init__.py")
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warning_tests.outer("spam6", stacklevel=2)
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self.assertEqual(os.path.basename(w[-1].filename),
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"stacklevel.py")
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warning_tests.outer("spam6.5", stacklevel=3)
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self.assertEqual(os.path.basename(w[-1].filename),
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"__init__.py")
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warning_tests.inner("spam7", stacklevel=9999)
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self.assertEqual(os.path.basename(w[-1].filename),
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"sys")
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|
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def test_stacklevel_import(self):
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# Issue #24305: With stacklevel=2, module-level warnings should work.
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import_helper.unload('test.test_warnings.data.import_warning')
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with warnings_state(self.module):
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with original_warnings.catch_warnings(record=True,
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module=self.module) as w:
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self.module.simplefilter('always')
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import test.test_warnings.data.import_warning
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self.assertEqual(len(w), 1)
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self.assertEqual(w[0].filename, __file__)
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|
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def test_exec_filename(self):
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filename = "<warnings-test>"
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codeobj = compile(("import warnings\n"
|
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"warnings.warn('hello', UserWarning)"),
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filename, "exec")
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with original_warnings.catch_warnings(record=True) as w:
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self.module.simplefilter("always", category=UserWarning)
|
|
exec(codeobj)
|
|
self.assertEqual(w[0].filename, filename)
|
|
|
|
def test_warn_explicit_non_ascii_filename(self):
|
|
with original_warnings.catch_warnings(record=True,
|
|
module=self.module) as w:
|
|
self.module.resetwarnings()
|
|
self.module.filterwarnings("always", category=UserWarning)
|
|
filenames = ["nonascii\xe9\u20ac"]
|
|
if not support.is_emscripten:
|
|
# JavaScript does not like surrogates.
|
|
# Invalid UTF-8 leading byte 0x80 encountered when
|
|
# deserializing a UTF-8 string in wasm memory to a JS
|
|
# string!
|
|
filenames.append("surrogate\udc80")
|
|
for filename in filenames:
|
|
try:
|
|
os.fsencode(filename)
|
|
except UnicodeEncodeError:
|
|
continue
|
|
self.module.warn_explicit("text", UserWarning, filename, 1)
|
|
self.assertEqual(w[-1].filename, filename)
|
|
|
|
def test_warn_explicit_type_errors(self):
|
|
# warn_explicit() should error out gracefully if it is given objects
|
|
# of the wrong types.
|
|
# lineno is expected to be an integer.
|
|
self.assertRaises(TypeError, self.module.warn_explicit,
|
|
None, UserWarning, None, None)
|
|
# Either 'message' needs to be an instance of Warning or 'category'
|
|
# needs to be a subclass.
|
|
self.assertRaises(TypeError, self.module.warn_explicit,
|
|
None, None, None, 1)
|
|
# 'registry' must be a dict or None.
|
|
self.assertRaises((TypeError, AttributeError),
|
|
self.module.warn_explicit,
|
|
None, Warning, None, 1, registry=42)
|
|
|
|
def test_bad_str(self):
|
|
# issue 6415
|
|
# Warnings instance with a bad format string for __str__ should not
|
|
# trigger a bus error.
|
|
class BadStrWarning(Warning):
|
|
"""Warning with a bad format string for __str__."""
|
|
def __str__(self):
|
|
return ("A bad formatted string %(err)" %
|
|
{"err" : "there is no %(err)s"})
|
|
|
|
with self.assertRaises(ValueError):
|
|
self.module.warn(BadStrWarning())
|
|
|
|
def test_warning_classes(self):
|
|
class MyWarningClass(Warning):
|
|
pass
|
|
|
|
class NonWarningSubclass:
|
|
pass
|
|
|
|
# passing a non-subclass of Warning should raise a TypeError
|
|
with self.assertRaises(TypeError) as cm:
|
|
self.module.warn('bad warning category', '')
|
|
self.assertIn('category must be a Warning subclass, not ',
|
|
str(cm.exception))
|
|
|
|
with self.assertRaises(TypeError) as cm:
|
|
self.module.warn('bad warning category', NonWarningSubclass)
|
|
self.assertIn('category must be a Warning subclass, not ',
|
|
str(cm.exception))
|
|
|
|
# check that warning instances also raise a TypeError
|
|
with self.assertRaises(TypeError) as cm:
|
|
self.module.warn('bad warning category', MyWarningClass())
|
|
self.assertIn('category must be a Warning subclass, not ',
|
|
str(cm.exception))
|
|
|
|
with original_warnings.catch_warnings(module=self.module):
|
|
self.module.resetwarnings()
|
|
self.module.filterwarnings('default')
|
|
with self.assertWarns(MyWarningClass) as cm:
|
|
self.module.warn('good warning category', MyWarningClass)
|
|
self.assertEqual('good warning category', str(cm.warning))
|
|
|
|
with self.assertWarns(UserWarning) as cm:
|
|
self.module.warn('good warning category', None)
|
|
self.assertEqual('good warning category', str(cm.warning))
|
|
|
|
with self.assertWarns(MyWarningClass) as cm:
|
|
self.module.warn('good warning category', MyWarningClass)
|
|
self.assertIsInstance(cm.warning, Warning)
|
|
|
|
class CWarnTests(WarnTests, unittest.TestCase):
|
|
module = c_warnings
|
|
|
|
# As an early adopter, we sanity check the
|
|
# test.import_helper.import_fresh_module utility function
|
|
def test_accelerated(self):
|
|
self.assertIsNot(original_warnings, self.module)
|
|
self.assertFalse(hasattr(self.module.warn, '__code__'))
|
|
|
|
class PyWarnTests(WarnTests, unittest.TestCase):
|
|
module = py_warnings
|
|
|
|
# As an early adopter, we sanity check the
|
|
# test.import_helper.import_fresh_module utility function
|
|
def test_pure_python(self):
|
|
self.assertIsNot(original_warnings, self.module)
|
|
self.assertTrue(hasattr(self.module.warn, '__code__'))
|
|
|
|
|
|
class WCmdLineTests(BaseTest):
|
|
|
|
def test_improper_input(self):
|
|
# Uses the private _setoption() function to test the parsing
|
|
# of command-line warning arguments
|
|
with original_warnings.catch_warnings(module=self.module):
|
|
self.assertRaises(self.module._OptionError,
|
|
self.module._setoption, '1:2:3:4:5:6')
|
|
self.assertRaises(self.module._OptionError,
|
|
self.module._setoption, 'bogus::Warning')
|
|
self.assertRaises(self.module._OptionError,
|
|
self.module._setoption, 'ignore:2::4:-5')
|
|
with self.assertRaises(self.module._OptionError):
|
|
self.module._setoption('ignore::123')
|
|
with self.assertRaises(self.module._OptionError):
|
|
self.module._setoption('ignore::123abc')
|
|
with self.assertRaises(self.module._OptionError):
|
|
self.module._setoption('ignore::===')
|
|
with self.assertRaisesRegex(self.module._OptionError, 'Wärning'):
|
|
self.module._setoption('ignore::Wärning')
|
|
self.module._setoption('error::Warning::0')
|
|
self.assertRaises(UserWarning, self.module.warn, 'convert to error')
|
|
|
|
def test_import_from_module(self):
|
|
with original_warnings.catch_warnings(module=self.module):
|
|
self.module._setoption('ignore::Warning')
|
|
with self.assertRaises(self.module._OptionError):
|
|
self.module._setoption('ignore::TestWarning')
|
|
with self.assertRaises(self.module._OptionError):
|
|
self.module._setoption('ignore::test.test_warnings.bogus')
|
|
self.module._setoption('error::test.test_warnings.TestWarning')
|
|
with self.assertRaises(TestWarning):
|
|
self.module.warn('test warning', TestWarning)
|
|
|
|
|
|
class CWCmdLineTests(WCmdLineTests, unittest.TestCase):
|
|
module = c_warnings
|
|
|
|
|
|
class PyWCmdLineTests(WCmdLineTests, unittest.TestCase):
|
|
module = py_warnings
|
|
|
|
def test_improper_option(self):
|
|
# Same as above, but check that the message is printed out when
|
|
# the interpreter is executed. This also checks that options are
|
|
# actually parsed at all.
|
|
rc, out, err = assert_python_ok("-Wxxx", "-c", "pass")
|
|
self.assertIn(b"Invalid -W option ignored: invalid action: 'xxx'", err)
|
|
|
|
def test_warnings_bootstrap(self):
|
|
# Check that the warnings module does get loaded when -W<some option>
|
|
# is used (see issue #10372 for an example of silent bootstrap failure).
|
|
rc, out, err = assert_python_ok("-Wi", "-c",
|
|
"import sys; sys.modules['warnings'].warn('foo', RuntimeWarning)")
|
|
# '-Wi' was observed
|
|
self.assertFalse(out.strip())
|
|
self.assertNotIn(b'RuntimeWarning', err)
|
|
|
|
|
|
class _WarningsTests(BaseTest, unittest.TestCase):
|
|
|
|
"""Tests specific to the _warnings module."""
|
|
|
|
module = c_warnings
|
|
|
|
def test_filter(self):
|
|
# Everything should function even if 'filters' is not in warnings.
|
|
with original_warnings.catch_warnings(module=self.module) as w:
|
|
self.module.filterwarnings("error", "", Warning, "", 0)
|
|
self.assertRaises(UserWarning, self.module.warn,
|
|
'convert to error')
|
|
del self.module.filters
|
|
self.assertRaises(UserWarning, self.module.warn,
|
|
'convert to error')
|
|
|
|
def test_onceregistry(self):
|
|
# Replacing or removing the onceregistry should be okay.
|
|
global __warningregistry__
|
|
message = UserWarning('onceregistry test')
|
|
try:
|
|
original_registry = self.module.onceregistry
|
|
__warningregistry__ = {}
|
|
with original_warnings.catch_warnings(record=True,
|
|
module=self.module) as w:
|
|
self.module.resetwarnings()
|
|
self.module.filterwarnings("once", category=UserWarning)
|
|
self.module.warn_explicit(message, UserWarning, "file", 42)
|
|
self.assertEqual(w[-1].message, message)
|
|
del w[:]
|
|
self.module.warn_explicit(message, UserWarning, "file", 42)
|
|
self.assertEqual(len(w), 0)
|
|
# Test the resetting of onceregistry.
|
|
self.module.onceregistry = {}
|
|
__warningregistry__ = {}
|
|
self.module.warn('onceregistry test')
|
|
self.assertEqual(w[-1].message.args, message.args)
|
|
# Removal of onceregistry is okay.
|
|
del w[:]
|
|
del self.module.onceregistry
|
|
__warningregistry__ = {}
|
|
self.module.warn_explicit(message, UserWarning, "file", 42)
|
|
self.assertEqual(len(w), 0)
|
|
finally:
|
|
self.module.onceregistry = original_registry
|
|
|
|
def test_default_action(self):
|
|
# Replacing or removing defaultaction should be okay.
|
|
message = UserWarning("defaultaction test")
|
|
original = self.module.defaultaction
|
|
try:
|
|
with original_warnings.catch_warnings(record=True,
|
|
module=self.module) as w:
|
|
self.module.resetwarnings()
|
|
registry = {}
|
|
self.module.warn_explicit(message, UserWarning, "<test>", 42,
|
|
registry=registry)
|
|
self.assertEqual(w[-1].message, message)
|
|
self.assertEqual(len(w), 1)
|
|
# One actual registry key plus the "version" key
|
|
self.assertEqual(len(registry), 2)
|
|
self.assertIn("version", registry)
|
|
del w[:]
|
|
# Test removal.
|
|
del self.module.defaultaction
|
|
__warningregistry__ = {}
|
|
registry = {}
|
|
self.module.warn_explicit(message, UserWarning, "<test>", 43,
|
|
registry=registry)
|
|
self.assertEqual(w[-1].message, message)
|
|
self.assertEqual(len(w), 1)
|
|
self.assertEqual(len(registry), 2)
|
|
del w[:]
|
|
# Test setting.
|
|
self.module.defaultaction = "ignore"
|
|
__warningregistry__ = {}
|
|
registry = {}
|
|
self.module.warn_explicit(message, UserWarning, "<test>", 44,
|
|
registry=registry)
|
|
self.assertEqual(len(w), 0)
|
|
finally:
|
|
self.module.defaultaction = original
|
|
|
|
def test_showwarning_missing(self):
|
|
# Test that showwarning() missing is okay.
|
|
text = 'del showwarning test'
|
|
with original_warnings.catch_warnings(module=self.module):
|
|
self.module.filterwarnings("always", category=UserWarning)
|
|
del self.module.showwarning
|
|
with support.captured_output('stderr') as stream:
|
|
self.module.warn(text)
|
|
result = stream.getvalue()
|
|
self.assertIn(text, result)
|
|
|
|
def test_showwarnmsg_missing(self):
|
|
# Test that _showwarnmsg() missing is okay.
|
|
text = 'del _showwarnmsg test'
|
|
with original_warnings.catch_warnings(module=self.module):
|
|
self.module.filterwarnings("always", category=UserWarning)
|
|
|
|
show = self.module._showwarnmsg
|
|
try:
|
|
del self.module._showwarnmsg
|
|
with support.captured_output('stderr') as stream:
|
|
self.module.warn(text)
|
|
result = stream.getvalue()
|
|
finally:
|
|
self.module._showwarnmsg = show
|
|
self.assertIn(text, result)
|
|
|
|
def test_showwarning_not_callable(self):
|
|
with original_warnings.catch_warnings(module=self.module):
|
|
self.module.filterwarnings("always", category=UserWarning)
|
|
self.module.showwarning = print
|
|
with support.captured_output('stdout'):
|
|
self.module.warn('Warning!')
|
|
self.module.showwarning = 23
|
|
self.assertRaises(TypeError, self.module.warn, "Warning!")
|
|
|
|
def test_show_warning_output(self):
|
|
# With showwarning() missing, make sure that output is okay.
|
|
text = 'test show_warning'
|
|
with original_warnings.catch_warnings(module=self.module):
|
|
self.module.filterwarnings("always", category=UserWarning)
|
|
del self.module.showwarning
|
|
with support.captured_output('stderr') as stream:
|
|
warning_tests.inner(text)
|
|
result = stream.getvalue()
|
|
self.assertEqual(result.count('\n'), 2,
|
|
"Too many newlines in %r" % result)
|
|
first_line, second_line = result.split('\n', 1)
|
|
expected_file = os.path.splitext(warning_tests.__file__)[0] + '.py'
|
|
first_line_parts = first_line.rsplit(':', 3)
|
|
path, line, warning_class, message = first_line_parts
|
|
line = int(line)
|
|
self.assertEqual(expected_file, path)
|
|
self.assertEqual(warning_class, ' ' + UserWarning.__name__)
|
|
self.assertEqual(message, ' ' + text)
|
|
expected_line = ' ' + linecache.getline(path, line).strip() + '\n'
|
|
assert expected_line
|
|
self.assertEqual(second_line, expected_line)
|
|
|
|
def test_filename_none(self):
|
|
# issue #12467: race condition if a warning is emitted at shutdown
|
|
globals_dict = globals()
|
|
oldfile = globals_dict['__file__']
|
|
try:
|
|
catch = original_warnings.catch_warnings(record=True,
|
|
module=self.module)
|
|
with catch as w:
|
|
self.module.filterwarnings("always", category=UserWarning)
|
|
globals_dict['__file__'] = None
|
|
original_warnings.warn('test', UserWarning)
|
|
self.assertTrue(len(w))
|
|
finally:
|
|
globals_dict['__file__'] = oldfile
|
|
|
|
def test_stderr_none(self):
|
|
rc, stdout, stderr = assert_python_ok("-c",
|
|
"import sys; sys.stderr = None; "
|
|
"import warnings; warnings.simplefilter('always'); "
|
|
"warnings.warn('Warning!')")
|
|
self.assertEqual(stdout, b'')
|
|
self.assertNotIn(b'Warning!', stderr)
|
|
self.assertNotIn(b'Error', stderr)
|
|
|
|
def test_issue31285(self):
|
|
# warn_explicit() should neither raise a SystemError nor cause an
|
|
# assertion failure, in case the return value of get_source() has a
|
|
# bad splitlines() method.
|
|
def get_bad_loader(splitlines_ret_val):
|
|
class BadLoader:
|
|
def get_source(self, fullname):
|
|
class BadSource(str):
|
|
def splitlines(self):
|
|
return splitlines_ret_val
|
|
return BadSource('spam')
|
|
return BadLoader()
|
|
|
|
wmod = self.module
|
|
with original_warnings.catch_warnings(module=wmod):
|
|
wmod.filterwarnings('default', category=UserWarning)
|
|
|
|
with support.captured_stderr() as stderr:
|
|
wmod.warn_explicit(
|
|
'foo', UserWarning, 'bar', 1,
|
|
module_globals={'__loader__': get_bad_loader(42),
|
|
'__name__': 'foobar'})
|
|
self.assertIn('UserWarning: foo', stderr.getvalue())
|
|
|
|
show = wmod._showwarnmsg
|
|
try:
|
|
del wmod._showwarnmsg
|
|
with support.captured_stderr() as stderr:
|
|
wmod.warn_explicit(
|
|
'eggs', UserWarning, 'bar', 1,
|
|
module_globals={'__loader__': get_bad_loader([42]),
|
|
'__name__': 'foobar'})
|
|
self.assertIn('UserWarning: eggs', stderr.getvalue())
|
|
finally:
|
|
wmod._showwarnmsg = show
|
|
|
|
@support.cpython_only
|
|
def test_issue31411(self):
|
|
# warn_explicit() shouldn't raise a SystemError in case
|
|
# warnings.onceregistry isn't a dictionary.
|
|
wmod = self.module
|
|
with original_warnings.catch_warnings(module=wmod):
|
|
wmod.filterwarnings('once')
|
|
with support.swap_attr(wmod, 'onceregistry', None):
|
|
with self.assertRaises(TypeError):
|
|
wmod.warn_explicit('foo', Warning, 'bar', 1, registry=None)
|
|
|
|
@support.cpython_only
|
|
def test_issue31416(self):
|
|
# warn_explicit() shouldn't cause an assertion failure in case of a
|
|
# bad warnings.filters or warnings.defaultaction.
|
|
wmod = self.module
|
|
with original_warnings.catch_warnings(module=wmod):
|
|
wmod.filters = [(None, None, Warning, None, 0)]
|
|
with self.assertRaises(TypeError):
|
|
wmod.warn_explicit('foo', Warning, 'bar', 1)
|
|
|
|
wmod.filters = []
|
|
with support.swap_attr(wmod, 'defaultaction', None), \
|
|
self.assertRaises(TypeError):
|
|
wmod.warn_explicit('foo', Warning, 'bar', 1)
|
|
|
|
@support.cpython_only
|
|
def test_issue31566(self):
|
|
# warn() shouldn't cause an assertion failure in case of a bad
|
|
# __name__ global.
|
|
with original_warnings.catch_warnings(module=self.module):
|
|
self.module.filterwarnings('error', category=UserWarning)
|
|
with support.swap_item(globals(), '__name__', b'foo'), \
|
|
support.swap_item(globals(), '__file__', None):
|
|
self.assertRaises(UserWarning, self.module.warn, 'bar')
|
|
|
|
|
|
class WarningsDisplayTests(BaseTest):
|
|
|
|
"""Test the displaying of warnings and the ability to overload functions
|
|
related to displaying warnings."""
|
|
|
|
def test_formatwarning(self):
|
|
message = "msg"
|
|
category = Warning
|
|
file_name = os.path.splitext(warning_tests.__file__)[0] + '.py'
|
|
line_num = 3
|
|
file_line = linecache.getline(file_name, line_num).strip()
|
|
format = "%s:%s: %s: %s\n %s\n"
|
|
expect = format % (file_name, line_num, category.__name__, message,
|
|
file_line)
|
|
self.assertEqual(expect, self.module.formatwarning(message,
|
|
category, file_name, line_num))
|
|
# Test the 'line' argument.
|
|
file_line += " for the win!"
|
|
expect = format % (file_name, line_num, category.__name__, message,
|
|
file_line)
|
|
self.assertEqual(expect, self.module.formatwarning(message,
|
|
category, file_name, line_num, file_line))
|
|
|
|
def test_showwarning(self):
|
|
file_name = os.path.splitext(warning_tests.__file__)[0] + '.py'
|
|
line_num = 3
|
|
expected_file_line = linecache.getline(file_name, line_num).strip()
|
|
message = 'msg'
|
|
category = Warning
|
|
file_object = StringIO()
|
|
expect = self.module.formatwarning(message, category, file_name,
|
|
line_num)
|
|
self.module.showwarning(message, category, file_name, line_num,
|
|
file_object)
|
|
self.assertEqual(file_object.getvalue(), expect)
|
|
# Test 'line' argument.
|
|
expected_file_line += "for the win!"
|
|
expect = self.module.formatwarning(message, category, file_name,
|
|
line_num, expected_file_line)
|
|
file_object = StringIO()
|
|
self.module.showwarning(message, category, file_name, line_num,
|
|
file_object, expected_file_line)
|
|
self.assertEqual(expect, file_object.getvalue())
|
|
|
|
def test_formatwarning_override(self):
|
|
# bpo-35178: Test that a custom formatwarning function gets the 'line'
|
|
# argument as a positional argument, and not only as a keyword argument
|
|
def myformatwarning(message, category, filename, lineno, text):
|
|
return f'm={message}:c={category}:f={filename}:l={lineno}:t={text}'
|
|
|
|
file_name = os.path.splitext(warning_tests.__file__)[0] + '.py'
|
|
line_num = 3
|
|
file_line = linecache.getline(file_name, line_num).strip()
|
|
message = 'msg'
|
|
category = Warning
|
|
file_object = StringIO()
|
|
expected = f'm={message}:c={category}:f={file_name}:l={line_num}' + \
|
|
f':t={file_line}'
|
|
with support.swap_attr(self.module, 'formatwarning', myformatwarning):
|
|
self.module.showwarning(message, category, file_name, line_num,
|
|
file_object, file_line)
|
|
self.assertEqual(file_object.getvalue(), expected)
|
|
|
|
|
|
class CWarningsDisplayTests(WarningsDisplayTests, unittest.TestCase):
|
|
module = c_warnings
|
|
|
|
class PyWarningsDisplayTests(WarningsDisplayTests, unittest.TestCase):
|
|
module = py_warnings
|
|
|
|
def test_tracemalloc(self):
|
|
self.addCleanup(os_helper.unlink, os_helper.TESTFN)
|
|
|
|
with open(os_helper.TESTFN, 'w', encoding="utf-8") as fp:
|
|
fp.write(textwrap.dedent("""
|
|
def func():
|
|
f = open(__file__, "rb")
|
|
# Emit ResourceWarning
|
|
f = None
|
|
|
|
func()
|
|
"""))
|
|
|
|
def run(*args):
|
|
res = assert_python_ok(*args, PYTHONIOENCODING='utf-8')
|
|
stderr = res.err.decode('utf-8', 'replace')
|
|
stderr = '\n'.join(stderr.splitlines())
|
|
|
|
# normalize newlines
|
|
stderr = re.sub('<.*>', '<...>', stderr)
|
|
return stderr
|
|
|
|
# tracemalloc disabled
|
|
filename = os.path.abspath(os_helper.TESTFN)
|
|
stderr = run('-Wd', os_helper.TESTFN)
|
|
expected = textwrap.dedent(f'''
|
|
{filename}:5: ResourceWarning: unclosed file <...>
|
|
f = None
|
|
ResourceWarning: Enable tracemalloc to get the object allocation traceback
|
|
''').strip()
|
|
self.assertEqual(stderr, expected)
|
|
|
|
# tracemalloc enabled
|
|
stderr = run('-Wd', '-X', 'tracemalloc=2', os_helper.TESTFN)
|
|
expected = textwrap.dedent(f'''
|
|
{filename}:5: ResourceWarning: unclosed file <...>
|
|
f = None
|
|
Object allocated at (most recent call last):
|
|
File "{filename}", lineno 7
|
|
func()
|
|
File "{filename}", lineno 3
|
|
f = open(__file__, "rb")
|
|
''').strip()
|
|
self.assertEqual(stderr, expected)
|
|
|
|
|
|
class CatchWarningTests(BaseTest):
|
|
|
|
"""Test catch_warnings()."""
|
|
|
|
def test_catch_warnings_restore(self):
|
|
wmod = self.module
|
|
orig_filters = wmod.filters
|
|
orig_showwarning = wmod.showwarning
|
|
# Ensure both showwarning and filters are restored when recording
|
|
with wmod.catch_warnings(module=wmod, record=True):
|
|
wmod.filters = wmod.showwarning = object()
|
|
self.assertIs(wmod.filters, orig_filters)
|
|
self.assertIs(wmod.showwarning, orig_showwarning)
|
|
# Same test, but with recording disabled
|
|
with wmod.catch_warnings(module=wmod, record=False):
|
|
wmod.filters = wmod.showwarning = object()
|
|
self.assertIs(wmod.filters, orig_filters)
|
|
self.assertIs(wmod.showwarning, orig_showwarning)
|
|
|
|
def test_catch_warnings_recording(self):
|
|
wmod = self.module
|
|
# Ensure warnings are recorded when requested
|
|
with wmod.catch_warnings(module=wmod, record=True) as w:
|
|
self.assertEqual(w, [])
|
|
self.assertIs(type(w), list)
|
|
wmod.simplefilter("always")
|
|
wmod.warn("foo")
|
|
self.assertEqual(str(w[-1].message), "foo")
|
|
wmod.warn("bar")
|
|
self.assertEqual(str(w[-1].message), "bar")
|
|
self.assertEqual(str(w[0].message), "foo")
|
|
self.assertEqual(str(w[1].message), "bar")
|
|
del w[:]
|
|
self.assertEqual(w, [])
|
|
# Ensure warnings are not recorded when not requested
|
|
orig_showwarning = wmod.showwarning
|
|
with wmod.catch_warnings(module=wmod, record=False) as w:
|
|
self.assertIsNone(w)
|
|
self.assertIs(wmod.showwarning, orig_showwarning)
|
|
|
|
def test_catch_warnings_reentry_guard(self):
|
|
wmod = self.module
|
|
# Ensure catch_warnings is protected against incorrect usage
|
|
x = wmod.catch_warnings(module=wmod, record=True)
|
|
self.assertRaises(RuntimeError, x.__exit__)
|
|
with x:
|
|
self.assertRaises(RuntimeError, x.__enter__)
|
|
# Same test, but with recording disabled
|
|
x = wmod.catch_warnings(module=wmod, record=False)
|
|
self.assertRaises(RuntimeError, x.__exit__)
|
|
with x:
|
|
self.assertRaises(RuntimeError, x.__enter__)
|
|
|
|
def test_catch_warnings_defaults(self):
|
|
wmod = self.module
|
|
orig_filters = wmod.filters
|
|
orig_showwarning = wmod.showwarning
|
|
# Ensure default behaviour is not to record warnings
|
|
with wmod.catch_warnings(module=wmod) as w:
|
|
self.assertIsNone(w)
|
|
self.assertIs(wmod.showwarning, orig_showwarning)
|
|
self.assertIsNot(wmod.filters, orig_filters)
|
|
self.assertIs(wmod.filters, orig_filters)
|
|
if wmod is sys.modules['warnings']:
|
|
# Ensure the default module is this one
|
|
with wmod.catch_warnings() as w:
|
|
self.assertIsNone(w)
|
|
self.assertIs(wmod.showwarning, orig_showwarning)
|
|
self.assertIsNot(wmod.filters, orig_filters)
|
|
self.assertIs(wmod.filters, orig_filters)
|
|
|
|
def test_record_override_showwarning_before(self):
|
|
# Issue #28835: If warnings.showwarning() was overridden, make sure
|
|
# that catch_warnings(record=True) overrides it again.
|
|
text = "This is a warning"
|
|
wmod = self.module
|
|
my_log = []
|
|
|
|
def my_logger(message, category, filename, lineno, file=None, line=None):
|
|
nonlocal my_log
|
|
my_log.append(message)
|
|
|
|
# Override warnings.showwarning() before calling catch_warnings()
|
|
with support.swap_attr(wmod, 'showwarning', my_logger):
|
|
with wmod.catch_warnings(module=wmod, record=True) as log:
|
|
self.assertIsNot(wmod.showwarning, my_logger)
|
|
|
|
wmod.simplefilter("always")
|
|
wmod.warn(text)
|
|
|
|
self.assertIs(wmod.showwarning, my_logger)
|
|
|
|
self.assertEqual(len(log), 1, log)
|
|
self.assertEqual(log[0].message.args[0], text)
|
|
self.assertEqual(my_log, [])
|
|
|
|
def test_record_override_showwarning_inside(self):
|
|
# Issue #28835: It is possible to override warnings.showwarning()
|
|
# in the catch_warnings(record=True) context manager.
|
|
text = "This is a warning"
|
|
wmod = self.module
|
|
my_log = []
|
|
|
|
def my_logger(message, category, filename, lineno, file=None, line=None):
|
|
nonlocal my_log
|
|
my_log.append(message)
|
|
|
|
with wmod.catch_warnings(module=wmod, record=True) as log:
|
|
wmod.simplefilter("always")
|
|
wmod.showwarning = my_logger
|
|
wmod.warn(text)
|
|
|
|
self.assertEqual(len(my_log), 1, my_log)
|
|
self.assertEqual(my_log[0].args[0], text)
|
|
self.assertEqual(log, [])
|
|
|
|
def test_check_warnings(self):
|
|
# Explicit tests for the test.support convenience wrapper
|
|
wmod = self.module
|
|
if wmod is not sys.modules['warnings']:
|
|
self.skipTest('module to test is not loaded warnings module')
|
|
with warnings_helper.check_warnings(quiet=False) as w:
|
|
self.assertEqual(w.warnings, [])
|
|
wmod.simplefilter("always")
|
|
wmod.warn("foo")
|
|
self.assertEqual(str(w.message), "foo")
|
|
wmod.warn("bar")
|
|
self.assertEqual(str(w.message), "bar")
|
|
self.assertEqual(str(w.warnings[0].message), "foo")
|
|
self.assertEqual(str(w.warnings[1].message), "bar")
|
|
w.reset()
|
|
self.assertEqual(w.warnings, [])
|
|
|
|
with warnings_helper.check_warnings():
|
|
# defaults to quiet=True without argument
|
|
pass
|
|
with warnings_helper.check_warnings(('foo', UserWarning)):
|
|
wmod.warn("foo")
|
|
|
|
with self.assertRaises(AssertionError):
|
|
with warnings_helper.check_warnings(('', RuntimeWarning)):
|
|
# defaults to quiet=False with argument
|
|
pass
|
|
with self.assertRaises(AssertionError):
|
|
with warnings_helper.check_warnings(('foo', RuntimeWarning)):
|
|
wmod.warn("foo")
|
|
|
|
class CCatchWarningTests(CatchWarningTests, unittest.TestCase):
|
|
module = c_warnings
|
|
|
|
class PyCatchWarningTests(CatchWarningTests, unittest.TestCase):
|
|
module = py_warnings
|
|
|
|
|
|
class EnvironmentVariableTests(BaseTest):
|
|
|
|
def test_single_warning(self):
|
|
rc, stdout, stderr = assert_python_ok("-c",
|
|
"import sys; sys.stdout.write(str(sys.warnoptions))",
|
|
PYTHONWARNINGS="ignore::DeprecationWarning",
|
|
PYTHONDEVMODE="")
|
|
self.assertEqual(stdout, b"['ignore::DeprecationWarning']")
|
|
|
|
def test_comma_separated_warnings(self):
|
|
rc, stdout, stderr = assert_python_ok("-c",
|
|
"import sys; sys.stdout.write(str(sys.warnoptions))",
|
|
PYTHONWARNINGS="ignore::DeprecationWarning,ignore::UnicodeWarning",
|
|
PYTHONDEVMODE="")
|
|
self.assertEqual(stdout,
|
|
b"['ignore::DeprecationWarning', 'ignore::UnicodeWarning']")
|
|
|
|
def test_envvar_and_command_line(self):
|
|
rc, stdout, stderr = assert_python_ok("-Wignore::UnicodeWarning", "-c",
|
|
"import sys; sys.stdout.write(str(sys.warnoptions))",
|
|
PYTHONWARNINGS="ignore::DeprecationWarning",
|
|
PYTHONDEVMODE="")
|
|
self.assertEqual(stdout,
|
|
b"['ignore::DeprecationWarning', 'ignore::UnicodeWarning']")
|
|
|
|
def test_conflicting_envvar_and_command_line(self):
|
|
rc, stdout, stderr = assert_python_failure("-Werror::DeprecationWarning", "-c",
|
|
"import sys, warnings; sys.stdout.write(str(sys.warnoptions)); "
|
|
"warnings.warn('Message', DeprecationWarning)",
|
|
PYTHONWARNINGS="default::DeprecationWarning",
|
|
PYTHONDEVMODE="")
|
|
self.assertEqual(stdout,
|
|
b"['default::DeprecationWarning', 'error::DeprecationWarning']")
|
|
self.assertEqual(stderr.splitlines(),
|
|
[b"Traceback (most recent call last):",
|
|
b" File \"<string>\", line 1, in <module>",
|
|
b"DeprecationWarning: Message"])
|
|
|
|
def test_default_filter_configuration(self):
|
|
pure_python_api = self.module is py_warnings
|
|
if support.Py_DEBUG:
|
|
expected_default_filters = []
|
|
else:
|
|
if pure_python_api:
|
|
main_module_filter = re.compile("__main__")
|
|
else:
|
|
main_module_filter = "__main__"
|
|
expected_default_filters = [
|
|
('default', None, DeprecationWarning, main_module_filter, 0),
|
|
('ignore', None, DeprecationWarning, None, 0),
|
|
('ignore', None, PendingDeprecationWarning, None, 0),
|
|
('ignore', None, ImportWarning, None, 0),
|
|
('ignore', None, ResourceWarning, None, 0),
|
|
]
|
|
expected_output = [str(f).encode() for f in expected_default_filters]
|
|
|
|
if pure_python_api:
|
|
# Disable the warnings acceleration module in the subprocess
|
|
code = "import sys; sys.modules.pop('warnings', None); sys.modules['_warnings'] = None; "
|
|
else:
|
|
code = ""
|
|
code += "import warnings; [print(f) for f in warnings.filters]"
|
|
|
|
rc, stdout, stderr = assert_python_ok("-c", code, __isolated=True)
|
|
stdout_lines = [line.strip() for line in stdout.splitlines()]
|
|
self.maxDiff = None
|
|
self.assertEqual(stdout_lines, expected_output)
|
|
|
|
|
|
@unittest.skipUnless(sys.getfilesystemencoding() != 'ascii',
|
|
'requires non-ascii filesystemencoding')
|
|
def test_nonascii(self):
|
|
PYTHONWARNINGS="ignore:DeprecationWarning" + os_helper.FS_NONASCII
|
|
rc, stdout, stderr = assert_python_ok("-c",
|
|
"import sys; sys.stdout.write(str(sys.warnoptions))",
|
|
PYTHONIOENCODING="utf-8",
|
|
PYTHONWARNINGS=PYTHONWARNINGS,
|
|
PYTHONDEVMODE="")
|
|
self.assertEqual(stdout, str([PYTHONWARNINGS]).encode())
|
|
|
|
class CEnvironmentVariableTests(EnvironmentVariableTests, unittest.TestCase):
|
|
module = c_warnings
|
|
|
|
class PyEnvironmentVariableTests(EnvironmentVariableTests, unittest.TestCase):
|
|
module = py_warnings
|
|
|
|
|
|
class _DeprecatedTest(BaseTest, unittest.TestCase):
|
|
|
|
"""Test _deprecated()."""
|
|
|
|
module = original_warnings
|
|
|
|
def test_warning(self):
|
|
version = (3, 11, 0, "final", 0)
|
|
test = [(4, 12), (4, 11), (4, 0), (3, 12)]
|
|
for remove in test:
|
|
msg = rf".*test_warnings.*{remove[0]}\.{remove[1]}"
|
|
filter = msg, DeprecationWarning
|
|
with self.subTest(remove=remove):
|
|
with warnings_helper.check_warnings(filter, quiet=False):
|
|
self.module._deprecated("test_warnings", remove=remove,
|
|
_version=version)
|
|
|
|
version = (3, 11, 0, "alpha", 0)
|
|
msg = r".*test_warnings.*3\.11"
|
|
with warnings_helper.check_warnings((msg, DeprecationWarning), quiet=False):
|
|
self.module._deprecated("test_warnings", remove=(3, 11),
|
|
_version=version)
|
|
|
|
def test_RuntimeError(self):
|
|
version = (3, 11, 0, "final", 0)
|
|
test = [(2, 0), (2, 12), (3, 10)]
|
|
for remove in test:
|
|
with self.subTest(remove=remove):
|
|
with self.assertRaises(RuntimeError):
|
|
self.module._deprecated("test_warnings", remove=remove,
|
|
_version=version)
|
|
for level in ["beta", "candidate", "final"]:
|
|
version = (3, 11, 0, level, 0)
|
|
with self.subTest(releaselevel=level):
|
|
with self.assertRaises(RuntimeError):
|
|
self.module._deprecated("test_warnings", remove=(3, 11),
|
|
_version=version)
|
|
|
|
|
|
class BootstrapTest(unittest.TestCase):
|
|
|
|
def test_issue_8766(self):
|
|
# "import encodings" emits a warning whereas the warnings is not loaded
|
|
# or not completely loaded (warnings imports indirectly encodings by
|
|
# importing linecache) yet
|
|
with os_helper.temp_cwd() as cwd, os_helper.temp_cwd('encodings'):
|
|
# encodings loaded by initfsencoding()
|
|
assert_python_ok('-c', 'pass', PYTHONPATH=cwd)
|
|
|
|
# Use -W to load warnings module at startup
|
|
assert_python_ok('-c', 'pass', '-W', 'always', PYTHONPATH=cwd)
|
|
|
|
|
|
class FinalizationTest(unittest.TestCase):
|
|
def test_finalization(self):
|
|
# Issue #19421: warnings.warn() should not crash
|
|
# during Python finalization
|
|
code = """
|
|
import warnings
|
|
warn = warnings.warn
|
|
|
|
class A:
|
|
def __del__(self):
|
|
warn("test")
|
|
|
|
a=A()
|
|
"""
|
|
rc, out, err = assert_python_ok("-c", code)
|
|
self.assertEqual(err.decode().rstrip(),
|
|
'<string>:7: UserWarning: test')
|
|
|
|
def test_late_resource_warning(self):
|
|
# Issue #21925: Emitting a ResourceWarning late during the Python
|
|
# shutdown must be logged.
|
|
|
|
expected = b"sys:1: ResourceWarning: unclosed file "
|
|
|
|
# don't import the warnings module
|
|
# (_warnings will try to import it)
|
|
code = "f = open(%a)" % __file__
|
|
rc, out, err = assert_python_ok("-Wd", "-c", code)
|
|
self.assertTrue(err.startswith(expected), ascii(err))
|
|
|
|
# import the warnings module
|
|
code = "import warnings; f = open(%a)" % __file__
|
|
rc, out, err = assert_python_ok("-Wd", "-c", code)
|
|
self.assertTrue(err.startswith(expected), ascii(err))
|
|
|
|
|
|
def setUpModule():
|
|
py_warnings.onceregistry.clear()
|
|
c_warnings.onceregistry.clear()
|
|
|
|
tearDownModule = setUpModule
|
|
|
|
if __name__ == "__main__":
|
|
unittest.main()
|