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Code Issues Projects Releases Packages Wiki Activity Actions 13

allow more operations to work on detached streams (closes #23093)

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Patch by Martin Panter.
This commit is contained in:
Benjamin Peterson 2014-12-21 20:51:50 -06:00
parent fe3dc376fa
commit 10e76b67c9
5 changed files with 61 additions and 42 deletions
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14
Lib/test/test_io.py
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@ -701,6 +701,8 @@ class CommonBufferedTests:
self.assertIs(buf.detach(), raw)
self.assertRaises(ValueError, buf.detach)
repr(buf) # Should still work
def test_fileno(self):
rawio = self.MockRawIO()
bufio = self.tp(rawio)
@ -2026,6 +2028,12 @@ class TextIOWrapperTest(unittest.TestCase):
self.assertEqual(r.getvalue(), b"howdy")
self.assertRaises(ValueError, t.detach)
# Operations independent of the detached stream should still work
repr(t)
self.assertEqual(t.encoding, "ascii")
self.assertEqual(t.errors, "strict")
self.assertFalse(t.line_buffering)
def test_repr(self):
raw = self.BytesIO("hello".encode("utf-8"))
b = self.BufferedReader(raw)
@ -2043,6 +2051,9 @@ class TextIOWrapperTest(unittest.TestCase):
self.assertEqual(repr(t),
"<%s.TextIOWrapper name=b'dummy' mode='r' encoding='utf-8'>" % modname)
t.buffer.detach()
repr(t) # Should not raise an exception
def test_line_buffering(self):
r = self.BytesIO()
b = self.BufferedWriter(r, 1000)
@ -2813,6 +2824,9 @@ class CTextIOWrapperTest(TextIOWrapperTest):
self.assertRaises(ValueError, t.__init__, b, newline='xyzzy')
self.assertRaises(ValueError, t.read)
t = self.TextIOWrapper.__new__(self.TextIOWrapper)
self.assertRaises(Exception, repr, t)
def test_garbage_collection(self):
# C TextIOWrapper objects are collected, and collecting them flushes
# all data to disk.