cpython/Lib/test/test_zipfile.py
Guido van Rossum bfce016a30 When zlib can't be imported, zipfile raises RuntimeError, which causes
the test to be marked as failing rather than skipped.  Add an explicit
"import zlib" to prevent this.
2001-04-10 14:46:39 +00:00

79 lines
2.6 KiB
Python

import zlib # implied prerequisite
import zipfile, os, StringIO, tempfile
from test_support import TestFailed
srcname = "junk9630.tmp"
zipname = "junk9708.tmp"
def zipTest(f, compression, srccontents):
zip = zipfile.ZipFile(f, "w", compression) # Create the ZIP archive
zip.write(srcname, "another.name")
zip.write(srcname, srcname)
zip.close()
zip = zipfile.ZipFile(f, "r", compression) # Read the ZIP archive
readData2 = zip.read(srcname)
readData1 = zip.read("another.name")
zip.close()
if readData1 != srccontents or readData2 != srccontents:
raise TestFailed, "Written data doesn't equal read data."
try:
fp = open(srcname, "wb") # Make a source file with some lines
for i in range(0, 1000):
fp.write("Test of zipfile line %d.\n" % i)
fp.close()
fp = open(srcname, "rb")
writtenData = fp.read()
fp.close()
for file in (zipname, tempfile.TemporaryFile(), StringIO.StringIO()):
zipTest(file, zipfile.ZIP_STORED, writtenData)
for file in (zipname, tempfile.TemporaryFile(), StringIO.StringIO()):
zipTest(file, zipfile.ZIP_DEFLATED, writtenData)
finally:
if os.path.isfile(srcname): # Remove temporary files
os.unlink(srcname)
if os.path.isfile(zipname):
os.unlink(zipname)
# This test checks that the ZipFile constructor closes the file object
# it opens if there's an error in the file. If it doesn't, the traceback
# holds a reference to the ZipFile object and, indirectly, the file object.
# On Windows, this causes the os.unlink() call to fail because the
# underlying file is still open. This is SF bug #412214.
#
fp = open(srcname, "w")
fp.write("this is not a legal zip file\n")
fp.close()
try:
zf = zipfile.ZipFile(srcname)
except zipfile.BadZipfile:
os.unlink(srcname)
# make sure we don't raise an AttributeError when a partially-constructed
# ZipFile instance is finalized; this tests for regression on SF tracker
# bug #403871.
try:
zipfile.ZipFile(srcname)
except IOError:
# The bug we're testing for caused an AttributeError to be raised
# when a ZipFile instance was created for a file that did not
# exist; the .fp member was not initialized but was needed by the
# __del__() method. Since the AttributeError is in the __del__(),
# it is ignored, but the user should be sufficiently annoyed by
# the message on the output that regression will be noticed
# quickly.
pass
else:
raise TestFailed("expected creation of readable ZipFile without\n"
" a file to raise an IOError.")