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[3.13] gh-131219: Improve tests in test_lzma.py by adding more asserts (GH-131220) (#131231)

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gh-131219: Improve tests in `test_lzma.py` by adding more asserts (GH-131220)
(cherry picked from commit f6c24a5c89)

Co-authored-by: sobolevn <mail@sobolevn.me>
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Miss Islington (bot) 2025-03-14 12:05:59 +01:00 • committed by GitHub
parent 6c10767232
commit 7d498aae2c
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1 changed files with 28 additions and 18 deletions
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46
Lib/test/test_lzma.py
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@ -538,13 +538,17 @@ class FileTestCase(unittest.TestCase):
def test_init(self):
with LZMAFile(BytesIO(COMPRESSED_XZ)) as f:
pass
self.assertIsInstance(f, LZMAFile)
self.assertEqual(f.mode, "rb")
with LZMAFile(BytesIO(), "w") as f:
pass
self.assertIsInstance(f, LZMAFile)
self.assertEqual(f.mode, "wb")
with LZMAFile(BytesIO(), "x") as f:
pass
self.assertIsInstance(f, LZMAFile)
self.assertEqual(f.mode, "wb")
with LZMAFile(BytesIO(), "a") as f:
pass
self.assertIsInstance(f, LZMAFile)
self.assertEqual(f.mode, "wb")
def test_init_with_PathLike_filename(self):
filename = FakePath(TESTFN)
@ -573,26 +577,32 @@ class FileTestCase(unittest.TestCase):
def test_init_mode(self):
with TempFile(TESTFN):
with LZMAFile(TESTFN, "r"):
pass
with LZMAFile(TESTFN, "rb"):
pass
with LZMAFile(TESTFN, "w"):
pass
with LZMAFile(TESTFN, "wb"):
pass
with LZMAFile(TESTFN, "a"):
pass
with LZMAFile(TESTFN, "ab"):
pass
with LZMAFile(TESTFN, "r") as f:
self.assertIsInstance(f, LZMAFile)
self.assertEqual(f.mode, "rb")
with LZMAFile(TESTFN, "rb") as f:
self.assertIsInstance(f, LZMAFile)
self.assertEqual(f.mode, "rb")
with LZMAFile(TESTFN, "w") as f:
self.assertIsInstance(f, LZMAFile)
self.assertEqual(f.mode, "wb")
with LZMAFile(TESTFN, "wb") as f:
self.assertIsInstance(f, LZMAFile)
self.assertEqual(f.mode, "wb")
with LZMAFile(TESTFN, "a") as f:
self.assertIsInstance(f, LZMAFile)
self.assertEqual(f.mode, "wb")
with LZMAFile(TESTFN, "ab") as f:
self.assertIsInstance(f, LZMAFile)
self.assertEqual(f.mode, "wb")
def test_init_with_x_mode(self):
self.addCleanup(unlink, TESTFN)
for mode in ("x", "xb"):
unlink(TESTFN)
with LZMAFile(TESTFN, mode) as f:
pass
self.assertEqual(f.mode, 'wb')
self.assertIsInstance(f, LZMAFile)
self.assertEqual(f.mode, 'wb')
with self.assertRaises(FileExistsError):
LZMAFile(TESTFN, mode)