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RustPython/Lib/test/test_importlib/builtin/test_loader.py
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youknowdot fc9f4a9541 Update importlib to CPython 3.15 with native bootstrap callback (#9169)
* Refresh canonical importlib and preserve native import callback

Cache the original builtin __import__ callback so CPython 3.15 importlib's
hierarchical locking uses the existing native parent-initialization path.
Refresh the complete canonical importlib and related test/helper families
from CPython d220409a13b77de7a6c30abe16ea90db01528edc through update_lib.

Preserve both nondecorator importlib guards in the updater. Add explicit
hash-pinned removal of reviewed obsolete canonical files, with full
preflight, dry-run, idempotence and refusal tests. Preserve empty fixtures.

Assisted-by: OpenAI Codex:model version unavailable

* Complete canonical inspect and types closure for importlib metadata

Refresh whole canonical inspect/types production and related test families
through update_lib after hosted CI exposed stale __cached__ consumers.
Add coroutine and async-generator state getters, with closed-state priority
for reentrant frame-local finalizers, and expose the existing frame-locals
proxy type with its CPython class documentation.

Preserve the optional _datetime and unittest import blocks through a narrow
migration adapter. Retain canonical assertions and existing guards; record
the missing LazyImportType expectation before adding a conditional expected
failure, and capability-skip only the two absent-_testcapi CLI fixtures.

Assisted-by: OpenAI Codex:model version unavailable

* Reject canonical removal junctions and read UTF-8 manifests

Reject junctions alongside symlinks in the existing path-component preflight and revalidation. Decode removal manifests explicitly as UTF-8. Add regressions for whole-batch refusal, revalidation, and Unicode dry-run/apply/idempotence.

Assisted-by: OpenAI Codex:model version unavailable
2026-10-17 14:40:13 +09:00

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from test.test_importlib import abc, util
machinery = util.import_importlib('importlib.machinery')
import sys
import types
import unittest
import warnings
@unittest.skipIf(util.BUILTINS.good_name is None, 'no reasonable builtin module')
class InspectLoaderTests:
"""Tests for InspectLoader methods for BuiltinImporter."""
def test_get_code(self):
# There is no code object.
result = self.machinery.BuiltinImporter.get_code(util.BUILTINS.good_name)
self.assertIsNone(result)
def test_get_source(self):
# There is no source.
result = self.machinery.BuiltinImporter.get_source(util.BUILTINS.good_name)
self.assertIsNone(result)
def test_is_package(self):
# Cannot be a package.
result = self.machinery.BuiltinImporter.is_package(util.BUILTINS.good_name)
self.assertFalse(result)
@unittest.skipIf(util.BUILTINS.bad_name is None, 'all modules are built in')
def test_not_builtin(self):
# Modules not built-in should raise ImportError.
for meth_name in ('get_code', 'get_source', 'is_package'):
method = getattr(self.machinery.BuiltinImporter, meth_name)
with self.assertRaises(ImportError) as cm:
method(util.BUILTINS.bad_name)
(Frozen_InspectLoaderTests,
Source_InspectLoaderTests
) = util.test_both(InspectLoaderTests, machinery=machinery)
if __name__ == '__main__':
unittest.main()