Port test_zipfile to unittest (patch #736962).

This commit is contained in:
Johannes Gijsbers 2004-08-19 15:11:50 +00:00
parent dc5de3bab2
commit 3caf9c1edd
1 changed files with 88 additions and 88 deletions

View File

@ -1,99 +1,99 @@
import zlib # implied prerequisite
import zipfile, os, StringIO, tempfile
from test.test_support import TestFailed
srcname = "junk9630"+os.extsep+"tmp"
zipname = "junk9708"+os.extsep+"tmp"
def zipTest(f, compression, srccontents):
zip = zipfile.ZipFile(f, "w", compression) # Create the ZIP archive
zip.write(srcname, "another"+os.extsep+"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"+os.extsep+"name")
zip.close()
if readData1 != srccontents or readData2 != srccontents:
raise TestFailed, "Written data doesn't equal read data."
# We can test part of the module without zlib.
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()
import zlib
except ImportError:
zlib = None
import zipfile, os, unittest
fp = open(srcname, "rb")
writtenData = fp.read()
fp.close()
from StringIO import StringIO
from tempfile import TemporaryFile
for file in (zipname, tempfile.TemporaryFile(), StringIO.StringIO()):
zipTest(file, zipfile.ZIP_STORED, writtenData)
from test.test_support import TESTFN, run_unittest
for file in (zipname, tempfile.TemporaryFile(), StringIO.StringIO()):
zipTest(file, zipfile.ZIP_DEFLATED, writtenData)
TESTFN2 = TESTFN + "2"
finally:
if os.path.isfile(srcname): # Remove temporary files
os.unlink(srcname)
if os.path.isfile(zipname):
os.unlink(zipname)
class TestsWithSourceFile(unittest.TestCase):
def setUp(self):
line_gen = ("Test of zipfile line %d." % i for i in range(0, 1000))
self.data = '\n'.join(line_gen)
# Make a source file with some lines
fp = open(TESTFN, "wb")
fp.write(self.data)
fp.close()
# 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)
def zipTest(self, f, compression):
# Create the ZIP archive
zipfp = zipfile.ZipFile(f, "w", compression)
zipfp.write(TESTFN, "another"+os.extsep+"name")
zipfp.write(TESTFN, TESTFN)
zipfp.close()
# Read the ZIP archive
zipfp = zipfile.ZipFile(f, "r", compression)
self.assertEqual(zipfp.read(TESTFN), self.data)
self.assertEqual(zipfp.read("another"+os.extsep+"name"), self.data)
zipfp.close()
# 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.")
def testStored(self):
for f in (TESTFN2, TemporaryFile(), StringIO()):
self.zipTest(f, zipfile.ZIP_STORED)
if zlib:
def testDeflated(self):
for f in (TESTFN2, TemporaryFile(), StringIO()):
self.zipTest(f, zipfile.ZIP_DEFLATED)
# Verify that testzip() doesn't swallow inappropriate exceptions.
data = StringIO.StringIO()
zipf = zipfile.ZipFile(data, mode="w")
zipf.writestr("foo.txt", "O, for a Muse of Fire!")
zipf.close()
zipf = zipfile.ZipFile(data, mode="r")
zipf.close()
try:
zipf.testzip()
except RuntimeError:
# This is correct; calling .read on a closed ZipFile should throw
# a RuntimeError, and so should calling .testzip. An earlier
# version of .testzip would swallow this exception (and any other)
# and report that the first file in the archive was corrupt.
pass
else:
raise TestFailed("expected calling .testzip on a closed ZipFile"
" to raise a RuntimeError")
del data, zipf
def tearDown(self):
os.remove(TESTFN)
os.remove(TESTFN2)
class OtherTests(unittest.TestCase):
def testCloseErroneousFile(self):
# 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(TESTFN, "w")
fp.write("this is not a legal zip file\n")
fp.close()
try:
zf = zipfile.ZipFile(TESTFN)
except zipfile.BadZipfile:
os.unlink(TESTFN)
def testNonExistentFileRaisesIOError(self):
# 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.
# 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.
self.assertRaises(IOError, zipfile.ZipFile, TESTFN)
def testClosedZipRaisesRuntimeError(self):
# Verify that testzip() doesn't swallow inappropriate exceptions.
data = StringIO()
zipf = zipfile.ZipFile(data, mode="w")
zipf.writestr("foo.txt", "O, for a Muse of Fire!")
zipf.close()
# This is correct; calling .read on a closed ZipFile should throw
# a RuntimeError, and so should calling .testzip. An earlier
# version of .testzip would swallow this exception (and any other)
# and report that the first file in the archive was corrupt.
self.assertRaises(RuntimeError, zipf.testzip)
def test_main():
run_unittest(TestsWithSourceFile, OtherTests)
if __name__ == "__main__":
test_main()