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Issue #15805: Add contextlib.redirect_stdout()

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This commit is contained in:
Raymond Hettinger 2013-10-10 00:46:57 -07:00
parent 5ed3bc9adb
commit 088cbf2d39
4 changed files with 81 additions and 1 deletions
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9
Lib/test/test_contextlib.py
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@ -1,5 +1,6 @@
"""Unit tests for contextlib.py, and other context managers."""
import io
import sys
import tempfile
import unittest
@ -653,6 +654,14 @@ class TestIgnored(unittest.TestCase):
with ignored(LookupError):
'Hello'[50]
class TestRedirectStdout(unittest.TestCase):
def test_redirect_to_string_io(self):
f = io.StringIO()
with redirect_stdout(f):
help(pow)
s = f.getvalue()
self.assertIn('pow', s)
if __name__ == "__main__":
unittest.main()