summaryrefslogtreecommitdiffstats
path: root/Lib/test/test_io.py
diff options
context:
space:
mode:
Diffstat (limited to 'Lib/test/test_io.py')
-rw-r--r--Lib/test/test_io.py14
1 files changed, 14 insertions, 0 deletions
diff --git a/Lib/test/test_io.py b/Lib/test/test_io.py
index 940e921..a424f76 100644
--- a/Lib/test/test_io.py
+++ b/Lib/test/test_io.py
@@ -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.