def testAmzGenerationTypeConversions(self):
amz_gen_as_str = six.ensure_str('9PpsRjBGjBh90IvIS96dgRc_UL6NyGqD')
amz_gen_as_long = 25923956239092482442895228561437790190304192615858167521375267910356975448388
self.assertEqual(text_util.DecodeLongAsString(amz_gen_as_long),
amz_gen_as_str)
self.assertEqual(text_util.EncodeStringAsLong(amz_gen_as_str),
amz_gen_as_long)
def GenerationFromUrlAndString(url, generation):
"""Decodes a generation from a StorageURL and a generation string.
This is used to represent gs and s3 versioning.
Args:
url: StorageUrl representing the object.
generation: Long or string representing the object's generation or
version.
Returns:
Valid generation string for use in URLs.
"""
if url.scheme == 's3' and generation:
return text_util.DecodeLongAsString(generation)
return generation
