Add test to explicit check the absence regression in subprocess (issue #15592).
Patch by Chris Jerdonek.
diff --git a/Lib/test/test_subprocess.py b/Lib/test/test_subprocess.py
index 52de5c0..9e92a96 100644
--- a/Lib/test/test_subprocess.py
+++ b/Lib/test/test_subprocess.py
@@ -548,6 +548,18 @@
(stdout, stderr) = p.communicate("line1\nline3\n")
self.assertEqual(p.returncode, 0)
+ def test_universal_newlines_communicate_input_none(self):
+ # Test communicate(input=None) with universal newlines.
+ #
+ # We set stdout to PIPE because, as of this writing, a different
+ # code path is tested when the number of pipes is zero or one.
+ p = subprocess.Popen([sys.executable, "-c", "pass"],
+ stdin=subprocess.PIPE,
+ stdout=subprocess.PIPE,
+ universal_newlines=True)
+ p.communicate()
+ self.assertEqual(p.returncode, 0)
+
def test_no_leaking(self):
# Make sure we leak no resources
if not mswindows: