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# Tests of the full ZIP64 functionality of zipfile
# The support.requires call is the only reason for keeping this separate
# from test_zipfile
from test import support
# XXX(nnorwitz): disable this test by looking for extralargefile resource,
# which doesn't exist. This test takes over 30 minutes to run in general
# and requires more disk space than most of the buildbots.
support.requires(
'extralargefile',
'test requires loads of disk-space bytes and a long time to run'
)
import zipfile, os, unittest
import time
import sys
from io import StringIO
from tempfile import TemporaryFile
from test.support import TESTFN, requires_zlib
TESTFN2 = TESTFN + "2"
# How much time in seconds can pass before we print a 'Still working' message.
_PRINT_WORKING_MSG_INTERVAL = 5 * 60
class TestsWithSourceFile(unittest.TestCase):
def setUp(self):
# Create test data.
line_gen = ("Test of zipfile line %d." % i for i in range(1000000))
self.data = '\n'.join(line_gen).encode('ascii')
# And write it to a file.
fp = open(TESTFN, "wb")
fp.write(self.data)
fp.close()
def zipTest(self, f, compression):
# Create the ZIP archive.
zipfp = zipfile.ZipFile(f, "w", compression)
# It will contain enough copies of self.data to reach about 6GB of
# raw data to store.
filecount = 6*1024**3 // len(self.data)
next_time = time.time() + _PRINT_WORKING_MSG_INTERVAL
for num in range(filecount):
zipfp.writestr("testfn%d" % num, self.data)
# Print still working message since this test can be really slow
if next_time <= time.time():
next_time = time.time() + _PRINT_WORKING_MSG_INTERVAL
print((
' zipTest still writing %d of %d, be patient...' %
(num, filecount)), file=sys.__stdout__)
sys.__stdout__.flush()
zipfp.close()
# Read the ZIP archive
zipfp = zipfile.ZipFile(f, "r", compression)
for num in range(filecount):
self.assertEqual(zipfp.read("testfn%d" % num), self.data)
# Print still working message since this test can be really slow
if next_time <= time.time():
next_time = time.time() + _PRINT_WORKING_MSG_INTERVAL
print((
' zipTest still reading %d of %d, be patient...' %
(num, filecount)), file=sys.__stdout__)
sys.__stdout__.flush()
zipfp.close()
def testStored(self):
# Try the temp file first. If we do TESTFN2 first, then it hogs
# gigabytes of disk space for the duration of the test.
with TemporaryFile() as f:
self.zipTest(f, zipfile.ZIP_STORED)
self.assertFalse(f.closed)
self.zipTest(TESTFN2, zipfile.ZIP_STORED)
@requires_zlib
def testDeflated(self):
# Try the temp file first. If we do TESTFN2 first, then it hogs
# gigabytes of disk space for the duration of the test.
with TemporaryFile() as f:
self.zipTest(f, zipfile.ZIP_DEFLATED)
self.assertFalse(f.closed)
self.zipTest(TESTFN2, zipfile.ZIP_DEFLATED)
def tearDown(self):
for fname in TESTFN, TESTFN2:
if os.path.exists(fname):
os.remove(fname)
class OtherTests(unittest.TestCase):
def testMoreThan64kFiles(self):
# This test checks that more than 64k files can be added to an archive,
# and that the resulting archive can be read properly by ZipFile
zipf = zipfile.ZipFile(TESTFN, mode="w", allowZip64=True)
zipf.debug = 100
numfiles = (1 << 16) * 3//2
for i in range(numfiles):
zipf.writestr("foo%08d" % i, "%d" % (i**3 % 57))
self.assertEqual(len(zipf.namelist()), numfiles)
zipf.close()
zipf2 = zipfile.ZipFile(TESTFN, mode="r")
self.assertEqual(len(zipf2.namelist()), numfiles)
for i in range(numfiles):
content = zipf2.read("foo%08d" % i).decode('ascii')
self.assertEqual(content, "%d" % (i**3 % 57))
zipf2.close()
def testMoreThan64kFilesAppend(self):
zipf = zipfile.ZipFile(TESTFN, mode="w", allowZip64=False)
zipf.debug = 100
numfiles = (1 << 16) - 1
for i in range(numfiles):
zipf.writestr("foo%08d" % i, "%d" % (i**3 % 57))
self.assertEqual(len(zipf.namelist()), numfiles)
with self.assertRaises(zipfile.LargeZipFile):
zipf.writestr("foo%08d" % numfiles, b'')
self.assertEqual(len(zipf.namelist()), numfiles)
zipf.close()
zipf = zipfile.ZipFile(TESTFN, mode="a", allowZip64=False)
zipf.debug = 100
self.assertEqual(len(zipf.namelist()), numfiles)
with self.assertRaises(zipfile.LargeZipFile):
zipf.writestr("foo%08d" % numfiles, b'')
self.assertEqual(len(zipf.namelist()), numfiles)
zipf.close()
zipf = zipfile.ZipFile(TESTFN, mode="a", allowZip64=True)
zipf.debug = 100
self.assertEqual(len(zipf.namelist()), numfiles)
numfiles2 = (1 << 16) * 3//2
for i in range(numfiles, numfiles2):
zipf.writestr("foo%08d" % i, "%d" % (i**3 % 57))
self.assertEqual(len(zipf.namelist()), numfiles2)
zipf.close()
zipf2 = zipfile.ZipFile(TESTFN, mode="r")
self.assertEqual(len(zipf2.namelist()), numfiles2)
for i in range(numfiles2):
content = zipf2.read("foo%08d" % i).decode('ascii')
self.assertEqual(content, "%d" % (i**3 % 57))
zipf2.close()
def tearDown(self):
support.unlink(TESTFN)
support.unlink(TESTFN2)
if __name__ == "__main__":
unittest.main()