Issue #20053: new test to check an assumption
diff --git a/Lib/test/test_venv.py b/Lib/test/test_venv.py
index 6ddbace..58551be 100644
--- a/Lib/test/test_venv.py
+++ b/Lib/test/test_venv.py
@@ -288,6 +288,13 @@
self.run_with_capture(venv.create, self.env_dir, with_pip=False)
self.assert_pip_not_installed()
+ def test_devnull_exists_and_is_empty(self):
+ # Fix for issue #20053 uses os.devnull to force a config file to
+ # appear empty. Make sure that assumption is valid cross platform.
+ self.assertTrue(os.path.exists, os.devnull)
+ with open(os.devnull, "rb") as f:
+ self.assertEqual(f.read(), b"")
+
# Requesting pip fails without SSL (http://bugs.python.org/issue19744)
@unittest.skipIf(ssl is None, ensurepip._MISSING_SSL_MESSAGE)
def test_with_pip(self):