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Issue #14366: Support lzma compression in zip files.
Patch by Serhiy Storchaka.
This commit is contained in:
Martin v. Löwis
parent
bb54b33cec
commit
7fb79fcb64
5 changed files with 257 additions and 27 deletions
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@ -13,7 +13,7 @@ from tempfile import TemporaryFile
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from random import randint, random
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from unittest import skipUnless
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from test.support import TESTFN, run_unittest, findfile, unlink, requires_zlib, requires_bz2
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from test.support import TESTFN, run_unittest, findfile, unlink, requires_zlib, requires_bz2, requires_lzma
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TESTFN2 = TESTFN + "2"
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TESTFNDIR = TESTFN + "d"
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@ -361,6 +361,55 @@ class TestsWithSourceFile(unittest.TestCase):
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self.assertEqual(openobj.read(1), b'1')
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self.assertEqual(openobj.read(1), b'2')
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@requires_lzma
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def test_lzma(self):
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for f in (TESTFN2, TemporaryFile(), io.BytesIO()):
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self.zip_test(f, zipfile.ZIP_LZMA)
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@requires_lzma
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def test_open_lzma(self):
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for f in (TESTFN2, TemporaryFile(), io.BytesIO()):
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self.zip_open_test(f, zipfile.ZIP_LZMA)
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@requires_lzma
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def test_random_open_lzma(self):
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for f in (TESTFN2, TemporaryFile(), io.BytesIO()):
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self.zip_random_open_test(f, zipfile.ZIP_LZMA)
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@requires_lzma
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def test_readline_read_lzma(self):
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# Issue #7610: calls to readline() interleaved with calls to read().
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for f in (TESTFN2, TemporaryFile(), io.BytesIO()):
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self.zip_readline_read_test(f, zipfile.ZIP_LZMA)
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@requires_lzma
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def test_readline_lzma(self):
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for f in (TESTFN2, TemporaryFile(), io.BytesIO()):
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self.zip_readline_test(f, zipfile.ZIP_LZMA)
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@requires_lzma
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def test_readlines_lzma(self):
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for f in (TESTFN2, TemporaryFile(), io.BytesIO()):
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self.zip_readlines_test(f, zipfile.ZIP_LZMA)
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@requires_lzma
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def test_iterlines_lzma(self):
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for f in (TESTFN2, TemporaryFile(), io.BytesIO()):
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self.zip_iterlines_test(f, zipfile.ZIP_LZMA)
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@requires_lzma
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def test_low_compression_lzma(self):
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"""Check for cases where compressed data is larger than original."""
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# Create the ZIP archive
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with zipfile.ZipFile(TESTFN2, "w", zipfile.ZIP_LZMA) as zipfp:
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zipfp.writestr("strfile", '12')
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# Get an open object for strfile
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with zipfile.ZipFile(TESTFN2, "r", zipfile.ZIP_LZMA) as zipfp:
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with zipfp.open("strfile") as openobj:
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self.assertEqual(openobj.read(1), b'1')
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self.assertEqual(openobj.read(1), b'2')
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def test_absolute_arcnames(self):
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with zipfile.ZipFile(TESTFN2, "w", zipfile.ZIP_STORED) as zipfp:
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zipfp.write(TESTFN, "/absolute")
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@ -508,6 +557,13 @@ class TestsWithSourceFile(unittest.TestCase):
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info = zipfp.getinfo('b.txt')
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self.assertEqual(info.compress_type, zipfile.ZIP_BZIP2)
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@requires_lzma
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def test_writestr_compression_lzma(self):
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zipfp = zipfile.ZipFile(TESTFN2, "w")
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zipfp.writestr("b.txt", "hello world", compress_type=zipfile.ZIP_LZMA)
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info = zipfp.getinfo('b.txt')
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self.assertEqual(info.compress_type, zipfile.ZIP_LZMA)
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def zip_test_writestr_permissions(self, f, compression):
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# Make sure that writestr creates files with mode 0600,
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# when it is passed a name rather than a ZipInfo instance.
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@ -686,6 +742,11 @@ class TestZip64InSmallFiles(unittest.TestCase):
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for f in (TESTFN2, TemporaryFile(), io.BytesIO()):
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self.zip_test(f, zipfile.ZIP_BZIP2)
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@requires_lzma
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def test_lzma(self):
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for f in (TESTFN2, TemporaryFile(), io.BytesIO()):
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self.zip_test(f, zipfile.ZIP_LZMA)
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def test_absolute_arcnames(self):
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with zipfile.ZipFile(TESTFN2, "w", zipfile.ZIP_STORED,
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allowZip64=True) as zipfp:
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@ -826,6 +887,16 @@ class OtherTests(unittest.TestCase):
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b'\x00 \x80\x80\x81\x00\x00\x00\x00afilePK'
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b'\x05\x06\x00\x00\x00\x00\x01\x00\x01\x003\x00\x00\x00[\x00'
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b'\x00\x00\x00\x00'),
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zipfile.ZIP_LZMA: (
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b'PK\x03\x04\x14\x03\x00\x00\x0e\x00nu\x0c=FA'
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b'KE\x1b\x00\x00\x00n\x00\x00\x00\x05\x00\x00\x00af'
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b'ile\t\x04\x05\x00]\x00\x00\x00\x04\x004\x19I'
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b'\xee\x8d\xe9\x17\x89:3`\tq!.8\x00PK'
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b'\x01\x02\x14\x03\x14\x03\x00\x00\x0e\x00nu\x0c=FA'
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b'KE\x1b\x00\x00\x00n\x00\x00\x00\x05\x00\x00\x00\x00\x00'
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b'\x00\x00\x00\x00 \x80\x80\x81\x00\x00\x00\x00afil'
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b'ePK\x05\x06\x00\x00\x00\x00\x01\x00\x01\x003\x00\x00'
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b'\x00>\x00\x00\x00\x00\x00'),
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}
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def test_unsupported_version(self):
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@ -1104,6 +1175,10 @@ class OtherTests(unittest.TestCase):
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def test_testzip_with_bad_crc_bzip2(self):
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self.check_testzip_with_bad_crc(zipfile.ZIP_BZIP2)
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@requires_lzma
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def test_testzip_with_bad_crc_lzma(self):
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self.check_testzip_with_bad_crc(zipfile.ZIP_LZMA)
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def check_read_with_bad_crc(self, compression):
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"""Tests that files with bad CRCs raise a BadZipFile exception when read."""
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zipdata = self.zips_with_bad_crc[compression]
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@ -1136,6 +1211,10 @@ class OtherTests(unittest.TestCase):
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def test_read_with_bad_crc_bzip2(self):
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self.check_read_with_bad_crc(zipfile.ZIP_BZIP2)
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@requires_lzma
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def test_read_with_bad_crc_lzma(self):
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self.check_read_with_bad_crc(zipfile.ZIP_LZMA)
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def check_read_return_size(self, compression):
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# Issue #9837: ZipExtFile.read() shouldn't return more bytes
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# than requested.
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@ -1160,6 +1239,10 @@ class OtherTests(unittest.TestCase):
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def test_read_return_size_bzip2(self):
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self.check_read_return_size(zipfile.ZIP_BZIP2)
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@requires_lzma
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def test_read_return_size_lzma(self):
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self.check_read_return_size(zipfile.ZIP_LZMA)
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def test_empty_zipfile(self):
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# Check that creating a file in 'w' or 'a' mode and closing without
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# adding any files to the archives creates a valid empty ZIP file
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@ -1306,6 +1389,11 @@ class TestsWithRandomBinaryFiles(unittest.TestCase):
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for f in (TESTFN2, TemporaryFile(), io.BytesIO()):
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self.zip_test(f, zipfile.ZIP_BZIP2)
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@requires_lzma
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def test_lzma(self):
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for f in (TESTFN2, TemporaryFile(), io.BytesIO()):
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self.zip_test(f, zipfile.ZIP_LZMA)
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def zip_open_test(self, f, compression):
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self.make_test_archive(f, compression)
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@ -1351,6 +1439,11 @@ class TestsWithRandomBinaryFiles(unittest.TestCase):
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for f in (TESTFN2, TemporaryFile(), io.BytesIO()):
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self.zip_open_test(f, zipfile.ZIP_BZIP2)
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@requires_lzma
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def test_open_lzma(self):
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for f in (TESTFN2, TemporaryFile(), io.BytesIO()):
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self.zip_open_test(f, zipfile.ZIP_LZMA)
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def zip_random_open_test(self, f, compression):
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self.make_test_archive(f, compression)
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@ -1384,6 +1477,11 @@ class TestsWithRandomBinaryFiles(unittest.TestCase):
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for f in (TESTFN2, TemporaryFile(), io.BytesIO()):
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self.zip_random_open_test(f, zipfile.ZIP_BZIP2)
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@requires_lzma
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def test_random_open_lzma(self):
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for f in (TESTFN2, TemporaryFile(), io.BytesIO()):
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self.zip_random_open_test(f, zipfile.ZIP_LZMA)
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@requires_zlib
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class TestsWithMultipleOpens(unittest.TestCase):
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@ -1628,6 +1726,31 @@ class UniversalNewlineTests(unittest.TestCase):
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for f in (TESTFN2, TemporaryFile(), io.BytesIO()):
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self.iterlines_test(f, zipfile.ZIP_BZIP2)
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@requires_lzma
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def test_read_lzma(self):
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for f in (TESTFN2, TemporaryFile(), io.BytesIO()):
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self.read_test(f, zipfile.ZIP_LZMA)
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@requires_lzma
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def test_readline_read_lzma(self):
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for f in (TESTFN2, TemporaryFile(), io.BytesIO()):
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self.readline_read_test(f, zipfile.ZIP_LZMA)
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@requires_lzma
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def test_readline_lzma(self):
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for f in (TESTFN2, TemporaryFile(), io.BytesIO()):
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self.readline_test(f, zipfile.ZIP_LZMA)
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@requires_lzma
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def test_readlines_lzma(self):
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for f in (TESTFN2, TemporaryFile(), io.BytesIO()):
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self.readlines_test(f, zipfile.ZIP_LZMA)
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@requires_lzma
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def test_iterlines_lzma(self):
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for f in (TESTFN2, TemporaryFile(), io.BytesIO()):
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self.iterlines_test(f, zipfile.ZIP_LZMA)
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def tearDown(self):
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for sep, fn in self.arcfiles.items():
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os.remove(fn)
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