1 """ 2 Test suite for OS X interpreter environment variables. 3 """ 4 5 from test.support import EnvironmentVarGuard 6 import subprocess 7 import sys 8 import sysconfig 9 import unittest 10 11 @unittest.skipUnless(sys.platform == 'darwin' and 12 sysconfig.get_config_var('WITH_NEXT_FRAMEWORK'), 13 'unnecessary on this platform') 14 class OSXEnvironmentVariableTestCase(unittest.TestCase): 15 def _check_sys(self, ev, cond, sv, val = sys.executable + 'dummy'): 16 with EnvironmentVarGuard() as evg: 17 subpc = [str(sys.executable), '-c', 18 'import sys; sys.exit(2 if "%s" %s %s else 3)' % (val, cond, sv)] 19 # ensure environment variable does not exist 20 evg.unset(ev) 21 # test that test on sys.xxx normally fails 22 rc = subprocess.call(subpc) 23 self.assertEqual(rc, 3, "expected %s not %s %s" % (ev, cond, sv)) 24 # set environ variable 25 evg.set(ev, val) 26 # test that sys.xxx has been influenced by the environ value 27 rc = subprocess.call(subpc) 28 self.assertEqual(rc, 2, "expected %s %s %s" % (ev, cond, sv)) 29 30 def test_pythonexecutable_sets_sys_executable(self): 31 self._check_sys('PYTHONEXECUTABLE', '==', 'sys.executable') 32 33 if __name__ == "__main__": 34 unittest.main() 35
