s3cmdversioning测试方法是什么
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""" Some unit tests for the S3 Versioning. """ import unittest import time from boto.s3.connection import S3Connection from boto.exception import S3ResponseError from boto.s3.deletemarker import DeleteMarker class S3VersionTest (unittest.TestCase): def setUp(self): self.conn = S3Connection() self.bucket_name = 'version-%d' % int(time.time()) self.bucket = self.conn.create_bucket(self.bucket_name) def tearDown(self): for k in self.bucket.list_versions(): self.bucket.delete_key(k.name, version_id=k.version_id) self.bucket.delete() def test_1_versions(self): # check versioning off d = self.bucket.get_versioning_status() self.assertFalse('Versioning' in d) # enable versioning self.bucket.configure_versioning(versioning=True) d = self.bucket.get_versioning_status() self.assertEqual('Enabled', d['Versioning']) # create a new key in the versioned bucket k = self.bucket.new_key("foobar") s1 = 'This is v1' k.set_contents_from_string(s1) # remember the version id of this object v1 = k.version_id # now get the contents from s3 o1 = k.get_contents_as_string() # check to make sure content read from k is identical to original self.assertEqual(s1, o1) # now overwrite that same key with new data s2 = 'This is v2' k.set_contents_from_string(s2) v2 = k.version_id # now retrieve latest contents as a string and compare k2 = self.bucket.new_key("foobar") o2 = k2.get_contents_as_string() self.assertEqual(s2, o2) # next retrieve explicit versions and compare o1 = k.get_contents_as_string(version_id=v1) o2 = k.get_contents_as_string(version_id=v2) self.assertEqual(s1, o1) self.assertEqual(s2, o2) # Now list all versions and compare to what we have rs = self.bucket.get_all_versions() self.assertEqual(v2, rs[0].version_id) self.assertEqual(v1, rs[1].version_id) # Now do a regular list command and make sure only the new key shows up rs = self.bucket.get_all_keys() self.assertEqual(1, len(rs)) # Now do regular delete self.bucket.delete_key('foobar') # Now list versions and make sure old versions are there # plus the DeleteMarker which is latest. rs = self.bucket.get_all_versions() self.assertEqual(3, len(rs)) self.assertTrue(isinstance(rs[0], DeleteMarker)) # Now delete v1 of the key self.bucket.delete_key('foobar', version_id=v1) # Now list versions again and make sure v1 is not there rs = self.bucket.get_all_versions() versions = [k.version_id for k in rs] self.assertTrue(v1 not in versions) self.assertTrue(v2 in versions) # Now suspend Versioning on the bucket self.bucket.configure_versioning(False) # Allow time for the change to fully propagate. time.sleep(3) d = self.bucket.get_versioning_status() self.assertEqual('Suspended', d['Versioning']) def test_latest_version(self): self.bucket.configure_versioning(versioning=True) # add v1 of an object key_name = "key" kv1 = self.bucket.new_key(key_name) kv1.set_contents_from_string("v1") # read list which should contain latest v1 listed_kv1 = iter(self.bucket.get_all_versions()).next() self.assertEqual(listed_kv1.name, key_name) self.assertEqual(listed_kv1.version_id, kv1.version_id) self.assertEqual(listed_kv1.is_latest, True) # add v2 of the object kv2 = self.bucket.new_key(key_name) kv2.set_contents_from_string("v2") # read 2 versions, confirm v2 is latest i = iter(self.bucket.get_all_versions()) listed_kv2 = i.next() listed_kv1 = i.next() self.assertEqual(listed_kv2.version_id, kv2.version_id) self.assertEqual(listed_kv1.version_id, kv1.version_id) self.assertEqual(listed_kv2.is_latest, True) self.assertEqual(listed_kv1.is_latest, False) # delete key, which creates a delete marker as latest self.bucket.delete_key(key_name) i = iter(self.bucket.get_all_versions()) listed_kv3 = i.next() listed_kv2 = i.next() listed_kv1 = i.next() self.assertNotEqual(listed_kv3.version_id, None) self.assertEqual(listed_kv2.version_id, kv2.version_id) self.assertEqual(listed_kv1.version_id, kv1.version_id) self.assertEqual(listed_kv3.is_latest, True) self.assertEqual(listed_kv2.is_latest, False) self.assertEqual(listed_kv1.is_latest, False)
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