Method test_sysconfig

Lib/test/test_venv.py:281–311

Test that the sysconfig functions work in a virtual environment.

(self)

    @requireVenvCreate
    def test_sysconfig(self):
        """
        Test that the sysconfig functions work in a virtual environment.
        """
        rmtree(self.env_dir)
        self.run_with_capture(venv.create, self.env_dir, symlinks=False)
        cmd = [self.envpy(), '-c', None]
        for call, expected in (
            # installation scheme
            ('get_preferred_scheme("prefix")', 'venv'),
            ('get_default_scheme()', 'venv'),
            # build environment
            ('is_python_build()', str(sysconfig.is_python_build())),
            ('get_makefile_filename()', sysconfig.get_makefile_filename()),
            ('get_config_h_filename()', sysconfig.get_config_h_filename()),
            ('get_config_var("Py_GIL_DISABLED")',
             str(sysconfig.get_config_var("Py_GIL_DISABLED")))):
            with self.subTest(call):
                cmd[2] = 'import sysconfig; print(sysconfig.%s)' % call
                out, err = check_output(cmd, encoding='utf-8')
                self.assertEqual(out.strip(), expected, err)
        for attr, expected in (
            ('executable', self.envpy()),
            # Usually compare to sys.executable, but if we're running in our own
            # venv then we really need to compare to our base executable
            ('_base_executable', sys._base_executable),
        ):
            with self.subTest(attr):
                cmd[2] = f'import sys; print(sys.{attr})'
                out, err = check_output(cmd, encoding='utf-8')
                self.assertEqual(out.strip(), expected, err)

    @requireVenvCreate
    @unittest.skipUnless(can_symlink(), 'Needs symlinks')