def test_overwrite(self):
"""
L{twisted.python.zipstream.unzip} and
L{twisted.python.zipstream.unzipIter} shouldn't overwrite files unless
the 'overwrite' flag is passed
"""
testfile = self.unzipdir.child('0')
zpfilename = self.makeZipFile(['OVERWRITTEN'])
testfile.setContent('NOT OVERWRITTEN')
zipstream.unzip(zpfilename, self.unzipdir.path)
self.assertEquals(testfile.open().read(), 'NOT OVERWRITTEN')
zipstream.unzip(zpfilename, self.unzipdir.path, overwrite=True)
self.assertEquals(testfile.open().read(), 'OVERWRITTEN')
testfile.setContent('NOT OVERWRITTEN')
uziter = zipstream.unzipIter(zpfilename, self.unzipdir.path)
uziter.next()
self.assertEquals(testfile.open().read(), 'NOT OVERWRITTEN')
uziter = zipstream.unzipIter(zpfilename, self.unzipdir.path,
overwrite=True)
uziter.next()
self.assertEquals(testfile.open().read(), 'OVERWRITTEN')
def test_unzipIter(self):
"""
L{twisted.python.zipstream.unzipIter} should unzip a file for each
iteration and yield the number of files left to unzip after that
iteration
"""
numfiles = 10
contents = ['This is test file %d!' % i for i in range(numfiles)]
zpfilename = self.makeZipFile(contents)
uziter = zipstream.unzipIter(zpfilename, self.unzipdir.path)
for i in range(numfiles):
self.assertEquals(len(list(self.unzipdir.children())), i)
self.assertEquals(uziter.next(), numfiles - i - 1)
self.assertEquals(len(list(self.unzipdir.children())), numfiles)
for child in self.unzipdir.children():
num = int(child.basename())
self.assertEquals(child.open().read(), contents[num])