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Add yet another test for subprocess.Popen.communicate

This commit is contained in:
Andrew Svetlov 2012-08-15 22:46:43 +03:00
parent 0689ce4396
commit 5395d2f07d
1 changed files with 28 additions and 0 deletions
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28
Lib/test/test_subprocess.py
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@ -645,6 +645,34 @@ class ProcessTestCase(BaseTestCase):
p.communicate()
self.assertEqual(p.returncode, 0)
def test_universal_newlines_communicate_stdin_stdout_stderr(self):
# universal newlines through communicate(), with only stdin
p = subprocess.Popen([sys.executable, "-c",
'import sys,os;' + SETBINARY + '''\nif True:
s = sys.stdin.readline()
sys.stdout.write(s)
sys.stdout.write("line2\\r")
sys.stderr.write("eline2\\n")
s = sys.stdin.read()
sys.stdout.write(s+"line4\\n")
sys.stdout.write(s+"line5\\r\\n")
sys.stderr.write("eline6\\n")
sys.stderr.write("eline7\\r")
sys.stderr.write("eline8\\r\\n")
'''],
stdin=subprocess.PIPE,
stderr=subprocess.PIPE,
stdout=subprocess.PIPE,
universal_newlines=1)
self.addCleanup(p.stdout.close)
self.addCleanup(p.stderr.close)
(stdout, stderr) = p.communicate("line1\nline3\n")
self.assertEqual(p.returncode, 0)
self.assertEqual("line1\nline2\nline3\nline4\nline3\nline5\n", stdout)
# Python debug build push something like "[42442 refs]\n"
# to stderr at exit of subprocess.
self.assertTrue(stderr.startswith("eline2\neline6\neline7\neline8\n"))
def test_no_leaking(self):
# Make sure we leak no resources
if not mswindows: