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Issue #19201: Add support for the 'x' mode to the lzma module.

Browse source 
Patch by Tim Heaney and Vajrasky Kok.
This commit is contained in:
Nadeem Vawda 2013-10-19 00:06:19 +02:00
parent c516815353
commit 42ca98217c
5 changed files with 51 additions and 13 deletions
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32
Lib/test/test_lzma.py
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@ -362,6 +362,8 @@ class FileTestCase(unittest.TestCase):
pass
with LZMAFile(BytesIO(), "w") as f:
pass
with LZMAFile(BytesIO(), "x") as f:
pass
with LZMAFile(BytesIO(), "a") as f:
pass
@ -389,13 +391,29 @@ class FileTestCase(unittest.TestCase):
with LZMAFile(TESTFN, "ab"):
pass
def test_init_with_x_mode(self):
self.addCleanup(unlink, TESTFN)
for mode in ("x", "xb"):
unlink(TESTFN)
with LZMAFile(TESTFN, mode):
pass
with self.assertRaises(FileExistsError):
with LZMAFile(TESTFN, mode):
pass
def test_init_bad_mode(self):
with self.assertRaises(ValueError):
LZMAFile(BytesIO(COMPRESSED_XZ), (3, "x"))
with self.assertRaises(ValueError):
LZMAFile(BytesIO(COMPRESSED_XZ), "")
with self.assertRaises(ValueError):
LZMAFile(BytesIO(COMPRESSED_XZ), "x")
LZMAFile(BytesIO(COMPRESSED_XZ), "xt")
with self.assertRaises(ValueError):
LZMAFile(BytesIO(COMPRESSED_XZ), "x+")
with self.assertRaises(ValueError):
LZMAFile(BytesIO(COMPRESSED_XZ), "rx")
with self.assertRaises(ValueError):
LZMAFile(BytesIO(COMPRESSED_XZ), "wx")
with self.assertRaises(ValueError):
LZMAFile(BytesIO(COMPRESSED_XZ), "rt")
with self.assertRaises(ValueError):
@ -1021,8 +1039,6 @@ class OpenTestCase(unittest.TestCase):
# Test invalid parameter combinations.
with self.assertRaises(ValueError):
lzma.open(TESTFN, "")
with self.assertRaises(ValueError):
lzma.open(TESTFN, "x")
with self.assertRaises(ValueError):
lzma.open(TESTFN, "rbt")
with self.assertRaises(ValueError):
@ -1072,6 +1088,16 @@ class OpenTestCase(unittest.TestCase):
with lzma.open(bio, "rt", newline="\r") as f:
self.assertEqual(f.readlines(), [text])
def test_x_mode(self):
self.addCleanup(unlink, TESTFN)
for mode in ("x", "xb", "xt"):
unlink(TESTFN)
with lzma.open(TESTFN, mode):
pass
with self.assertRaises(FileExistsError):
with lzma.open(TESTFN, mode):
pass
class MiscellaneousTestCase(unittest.TestCase):