diff options
Diffstat (limited to 'Lib/test/test_subprocess.py')
| -rw-r--r-- | Lib/test/test_subprocess.py | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/Lib/test/test_subprocess.py b/Lib/test/test_subprocess.py index b1e9027..1a50de3 100644 --- a/Lib/test/test_subprocess.py +++ b/Lib/test/test_subprocess.py @@ -79,6 +79,28 @@ class PopenExecuteChildRaises(subprocess.Popen): class ProcessTestCase(BaseTestCase): + def test_io_buffered_by_default(self): + p = subprocess.Popen([sys.executable, "-c", "import sys; sys.exit(0)"], + stdin=subprocess.PIPE, stdout=subprocess.PIPE, + stderr=subprocess.PIPE) + try: + self.assertIsInstance(p.stdin, io.BufferedIOBase) + self.assertIsInstance(p.stdout, io.BufferedIOBase) + self.assertIsInstance(p.stderr, io.BufferedIOBase) + finally: + p.wait() + + def test_io_unbuffered_works(self): + p = subprocess.Popen([sys.executable, "-c", "import sys; sys.exit(0)"], + stdin=subprocess.PIPE, stdout=subprocess.PIPE, + stderr=subprocess.PIPE, bufsize=0) + try: + self.assertIsInstance(p.stdin, io.RawIOBase) + self.assertIsInstance(p.stdout, io.RawIOBase) + self.assertIsInstance(p.stderr, io.RawIOBase) + finally: + p.wait() + def test_call_seq(self): # call() function with sequence argument rc = subprocess.call([sys.executable, "-c", |