| """ | |
| 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() |