| """ |
| Test suite for OS X interpreter environment variables. |
| """ |
| |
| from test.support.os_helper import EnvironmentVarGuard |
| import subprocess |
| import sys |
| import sysconfig |
| import unittest |
| |
| @unittest.skipUnless(sys.platform == 'darwin' and |
| sysconfig.get_config_var('WITH_NEXT_FRAMEWORK'), |
| 'unnecessary on this platform') |
| class OSXEnvironmentVariableTestCase(unittest.TestCase): |
| def _check_sys(self, ev, cond, sv, val = sys.executable + 'dummy'): |
| with EnvironmentVarGuard() as evg: |
| subpc = [str(sys.executable), '-c', |
| 'import sys; sys.exit(2 if "%s" %s %s else 3)' % (val, cond, sv)] |
| # ensure environment variable does not exist |
| evg.unset(ev) |
| # test that test on sys.xxx normally fails |
| rc = subprocess.call(subpc) |
| self.assertEqual(rc, 3, "expected %s not %s %s" % (ev, cond, sv)) |
| # set environ variable |
| evg.set(ev, val) |
| # test that sys.xxx has been influenced by the environ value |
| rc = subprocess.call(subpc) |
| self.assertEqual(rc, 2, "expected %s %s %s" % (ev, cond, sv)) |
| |
| def test_pythonexecutable_sets_sys_executable(self): |
| self._check_sys('PYTHONEXECUTABLE', '==', 'sys.executable') |
| |
| if __name__ == "__main__": |
| unittest.main() |
