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Backported tests from issue #20175.

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This commit is contained in:
Serhiy Storchaka 2015-04-16 11:54:14 +03:00
parent f4bbc535b9
commit 6a69466f61
2 changed files with 23 additions and 3 deletions
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15
Lib/test/test_fileio.py
View file

@ -126,9 +126,9 @@ def testErrors(self):
self.assertTrue(f.closed)
def testMethods(self):
methods = ['fileno', 'isatty', 'read', 'readinto',
'seek', 'tell', 'truncate', 'write', 'seekable',
'readable', 'writable']
methods = ['fileno', 'isatty', 'seekable', 'readable', 'writable',
'read', 'readall', 'readline', 'readlines',
'tell', 'truncate', 'flush']
self.f.close()
self.assertTrue(self.f.closed)
@ -138,6 +138,15 @@ def testMethods(self):
# should raise on closed file
self.assertRaises(ValueError, method)
self.assertRaises(ValueError, self.f.readinto) # XXX should be TypeError?
self.assertRaises(ValueError, self.f.readinto, bytearray(1))
self.assertRaises(ValueError, self.f.seek)
self.assertRaises(ValueError, self.f.seek, 0)
self.assertRaises(ValueError, self.f.write)
self.assertRaises(ValueError, self.f.write, b'')
self.assertRaises(TypeError, self.f.writelines)
self.assertRaises(ValueError, self.f.writelines, b'')
def testOpendir(self):
# Issue 3703: opening a directory should fill the errno
# Windows always returns "[Errno 13]: Permission denied

11
Lib/test/test_io.py
View file

@ -2087,6 +2087,17 @@ def test_constructor(self):
self.assertRaises(TypeError, t.__init__, b, newline=42)
self.assertRaises(ValueError, t.__init__, b, newline='xyzzy')
def test_uninitialized(self):
t = self.TextIOWrapper.__new__(self.TextIOWrapper)
del t
t = self.TextIOWrapper.__new__(self.TextIOWrapper)
self.assertRaises(Exception, repr, t)
self.assertRaisesRegex((ValueError, AttributeError),
'uninitialized|has no attribute',
t.read, 0)
t.__init__(self.MockRawIO())
self.assertEqual(t.read(0), '')
def test_non_text_encoding_codecs_are_rejected(self):
# Ensure the constructor complains if passed a codec that isn't
# marked as a text encoding