diff options
Diffstat (limited to 'Lib/test/test_warnings.py')
| -rw-r--r-- | Lib/test/test_warnings.py | 49 |
1 files changed, 40 insertions, 9 deletions
diff --git a/Lib/test/test_warnings.py b/Lib/test/test_warnings.py index c1e29b8..5cf1034 100644 --- a/Lib/test/test_warnings.py +++ b/Lib/test/test_warnings.py @@ -4,6 +4,9 @@ import os from io import StringIO import sys import unittest +import shutil +import tempfile +import subprocess from test import support from test import warning_tests @@ -670,18 +673,46 @@ class PyCatchWarningTests(CatchWarningTests): module = py_warnings +class BootstrapTest(unittest.TestCase): + def test_issue_8766(self): + # "import encodings" emits a warning whereas the warnings is not loaded + # or not completly loaded (warnings imports indirectly encodings by + # importing linecache) yet + old_cwd = os.getcwd() + try: + cwd = tempfile.mkdtemp() + try: + os.chdir(cwd) + os.mkdir('encodings') + env = os.environ.copy() + env['PYTHONPATH'] = cwd + + # encodings loaded by initfsencoding() + retcode = subprocess.call([sys.executable, '-c', 'pass'], env=env) + self.assertEqual(retcode, 0) + + # Use -W to load warnings module at startup + retcode = subprocess.call( + [sys.executable, '-c', 'pass', '-W', 'always'], + env=env) + self.assertEqual(retcode, 0) + finally: + shutil.rmtree(cwd) + finally: + os.chdir(old_cwd) + def test_main(): py_warnings.onceregistry.clear() c_warnings.onceregistry.clear() - support.run_unittest(CFilterTests, - PyFilterTests, - CWarnTests, - PyWarnTests, - CWCmdLineTests, PyWCmdLineTests, - _WarningsTests, - CWarningsDisplayTests, PyWarningsDisplayTests, - CCatchWarningTests, PyCatchWarningTests, - ) + support.run_unittest( + CFilterTests, PyFilterTests, + CWarnTests, PyWarnTests, + CWCmdLineTests, PyWCmdLineTests, + _WarningsTests, + CWarningsDisplayTests, PyWarningsDisplayTests, + CCatchWarningTests, PyCatchWarningTests, + BootstrapTest, + ) if __name__ == "__main__": |