def test_key_with_files_and_callback(self):
"""
test simple key 'from_file' and 'to_file' functions
"""
def _archive_callback(bytes_sent, total_bytes):
print >> sys.stderr, "archived", str(bytes_sent), "out of", \
str(total_bytes)
def _retrieve_callback(bytes_sent, total_bytes):
print >> sys.stderr, "retrieved", str(bytes_sent), "out of", \
str(total_bytes)
log = logging.getLogger("test_key_with_files")
bucket_name = "com-dougfort-test-key-with-files-and-callback"
key_name = "A" * 1024
test_file_path = os.path.join(
_test_dir_path, "test_key_with_files-orignal"
)
test_file_size = 1024 ** 2
buffer_size = 1024
log.debug("writing %s bytes to %s" % (
test_file_size, test_file_path,
))
bytes_written = 0
with open(test_file_path, "w") as output_file:
while bytes_written < test_file_size:
output_file.write(_random_string(buffer_size))
bytes_written += buffer_size
# create the bucket
bucket = self._s3_connection.create_bucket(bucket_name)
self.assertTrue(bucket is not None)
self.assertEqual(bucket.name, bucket_name)
# create an empty key
write_key = Key(bucket)
# set the name
write_key.name = key_name
self.assertFalse(write_key.exists())
# upload some data
with open(test_file_path, "r") as archive_file:
write_key.set_contents_from_file(
archive_file, cb=_archive_callback
)
self.assertTrue(write_key.exists())
# create another key with the same name
read_key = Key(bucket, key_name)
# read back the data
retrieve_file_path = os.path.join(
_test_dir_path, "test_key_with_files-orignal"
)
# 2011-08-08 dougfort boto aborts if you don't tell it the size
read_key.size = test_file_size
with open(retrieve_file_path, "w") as retrieve_file:
read_key.get_contents_to_file(
retrieve_file, cb=_retrieve_callback
)
self.assertTrue(
filecmp.cmp(test_file_path, retrieve_file_path, shallow=False)
)
# delete the key
read_key.delete()
self.assertFalse(write_key.exists())
# delete the bucket
self._s3_connection.delete_bucket(bucket_name)
