Method test_whence

Lib/test/test_interpreters/test_api.py:2277–2318

(self)

    @requires_test_modules
    def test_whence(self):
        with self.subTest('main'):
            interpid, *_ = _interpreters.get_main()
            whence = _interpreters.whence(interpid)
            self.assertEqual(whence, _interpreters.WHENCE_RUNTIME)

        with self.subTest('stdlib'):
            interpid = _interpreters.create()
            whence = _interpreters.whence(interpid)
            self.assertEqual(whence, _interpreters.WHENCE_STDLIB)

        for orig, name in {
            _interpreters.WHENCE_UNKNOWN: 'not ready',
            _interpreters.WHENCE_LEGACY_CAPI: 'legacy C-API',
            _interpreters.WHENCE_CAPI: 'C-API',
            _interpreters.WHENCE_XI: 'cross-interpreter C-API',
        }.items():
            with self.subTest(f'from C-API ({orig}: {name})'):
                with self.interpreter_from_capi(whence=orig) as interpid:
                    whence = _interpreters.whence(interpid)
                self.assertEqual(whence, orig)

        with self.subTest('from C-API, running'):
            text = self.run_temp_from_capi(dedent(f"""
                import _interpreters
                interpid, *_ = _interpreters.get_current()
                print(_interpreters.whence(interpid))
                """),
                config=True)
            whence = eval(text)
            self.assertEqual(whence, _interpreters.WHENCE_CAPI)

        with self.subTest('from legacy C-API, running'):
            ...
            text = self.run_temp_from_capi(dedent(f"""
                import _interpreters
                interpid, *_ = _interpreters.get_current()
                print(_interpreters.whence(interpid))
                """),
                config=False)
            whence = eval(text)
            self.assertEqual(whence, _interpreters.WHENCE_LEGACY_CAPI)

    def test_contextvars_missing(self):
        script = f"""