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bpo-32942: Fix environment dependent test_script_helper (GH-8034) 

Result of function interpreter_requires_environment() depends on os.environ.
This was not covered by the tests, leading to fail when PYTHONHOME was set.
This commit is contained in:
Lorenz Mende 2018-07-04 12:10:15 +02:00 committed by Victor Stinner
parent 07888e1cce
commit a390cb6b6f
1 changed files with 31 additions and 16 deletions
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15
Lib/test/test_script_helper.py
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@ -2,6 +2,7 @@
import subprocess
import sys
import os
from test.support import script_helper
import unittest
from unittest import mock
@ -83,6 +84,8 @@ class TestScriptHelperEnvironment(unittest.TestCase):
@mock.patch('subprocess.check_call')
def test_interpreter_requires_environment_true(self, mock_check_call):
with mock.patch.dict(os.environ):
os.environ.pop('PYTHONHOME', None)
mock_check_call.side_effect = subprocess.CalledProcessError('', '')
self.assertTrue(script_helper.interpreter_requires_environment())
self.assertTrue(script_helper.interpreter_requires_environment())
@ -90,6 +93,8 @@ class TestScriptHelperEnvironment(unittest.TestCase):
@mock.patch('subprocess.check_call')
def test_interpreter_requires_environment_false(self, mock_check_call):
with mock.patch.dict(os.environ):
os.environ.pop('PYTHONHOME', None)
# The mocked subprocess.check_call fakes a no-error process.
script_helper.interpreter_requires_environment()
self.assertFalse(script_helper.interpreter_requires_environment())
@ -97,6 +102,8 @@ class TestScriptHelperEnvironment(unittest.TestCase):
@mock.patch('subprocess.check_call')
def test_interpreter_requires_environment_details(self, mock_check_call):
with mock.patch.dict(os.environ):
os.environ.pop('PYTHONHOME', None)
script_helper.interpreter_requires_environment()
self.assertFalse(script_helper.interpreter_requires_environment())
self.assertFalse(script_helper.interpreter_requires_environment())
@ -105,6 +112,14 @@ class TestScriptHelperEnvironment(unittest.TestCase):
self.assertEqual(sys.executable, check_call_command[0])
self.assertIn('-E', check_call_command)
@mock.patch('subprocess.check_call')
def test_interpreter_requires_environment_with_pythonhome(self, mock_check_call):
with mock.patch.dict(os.environ):
os.environ['PYTHONHOME'] = 'MockedHome'
self.assertTrue(script_helper.interpreter_requires_environment())
self.assertTrue(script_helper.interpreter_requires_environment())
self.assertEqual(0, mock_check_call.call_count)
if __name__ == '__main__':
unittest.main()