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Code Issues Projects Releases Packages Wiki Activity Actions 11

add BufferedIOBase.readinto1 (closes #20578)

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Patch by Nikolaus Rath.
This commit is contained in:
Benjamin Peterson 2014-06-07 20:06:48 -07:00
parent 66f80e92c3
commit 10e847bbc7
5 changed files with 194 additions and 14 deletions
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25
Lib/test/test_io.py
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@ -911,6 +911,29 @@ class BufferedReaderTest(unittest.TestCase, CommonBufferedTests):
self.assertEqual(bufio.readinto(b), 1)
self.assertEqual(b, b"cb")
def test_readinto1(self):
buffer_size = 10
rawio = self.MockRawIO((b"abc", b"de", b"fgh", b"jkl"))
bufio = self.tp(rawio, buffer_size=buffer_size)
b = bytearray(2)
self.assertEqual(bufio.peek(3), b'abc')
self.assertEqual(rawio._reads, 1)
self.assertEqual(bufio.readinto1(b), 2)
self.assertEqual(b, b"ab")
self.assertEqual(rawio._reads, 1)
self.assertEqual(bufio.readinto1(b), 1)
self.assertEqual(b[:1], b"c")
self.assertEqual(rawio._reads, 1)
self.assertEqual(bufio.readinto1(b), 2)
self.assertEqual(b, b"de")
self.assertEqual(rawio._reads, 2)
b = bytearray(2*buffer_size)
self.assertEqual(bufio.peek(3), b'fgh')
self.assertEqual(rawio._reads, 3)
self.assertEqual(bufio.readinto1(b), 6)
self.assertEqual(b[:6], b"fghjkl")
self.assertEqual(rawio._reads, 4)
def test_readlines(self):
def bufio():
rawio = self.MockRawIO((b"abc\n", b"d\n", b"ef"))
@ -2985,6 +3008,8 @@ class MiscIOTest(unittest.TestCase):
self.assertRaises(ValueError, f.readall)
if hasattr(f, "readinto"):
self.assertRaises(ValueError, f.readinto, bytearray(1024))
if hasattr(f, "readinto1"):
self.assertRaises(ValueError, f.readinto1, bytearray(1024))
self.assertRaises(ValueError, f.readline)
self.assertRaises(ValueError, f.readlines)
self.assertRaises(ValueError, f.seek, 0)