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Unified Diff: third_party/gsutil/boto/tests/s3/test_resumable_downloads.py

Issue 10199002: Upgrade gsutil to 3.4 (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart
Patch Set: Addressed comments Created 8 years, 8 months ago
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Index: third_party/gsutil/boto/tests/s3/test_resumable_downloads.py
diff --git a/third_party/gsutil/20110627/boto/tests/s3/test_resumable_downloads.py b/third_party/gsutil/boto/tests/s3/test_resumable_downloads.py
similarity index 64%
rename from third_party/gsutil/20110627/boto/tests/s3/test_resumable_downloads.py
rename to third_party/gsutil/boto/tests/s3/test_resumable_downloads.py
index d11c8cadf70c0928c2a258efc2c064c696f819f8..b813d1cb3786544fafa291dd9fd62f29d50548c0 100755
--- a/third_party/gsutil/20110627/boto/tests/s3/test_resumable_downloads.py
+++ b/third_party/gsutil/boto/tests/s3/test_resumable_downloads.py
@@ -45,7 +45,7 @@ from boto.s3.resumable_download_handler import ResumableDownloadHandler
from boto.exception import ResumableTransferDisposition
from boto.exception import ResumableDownloadException
from boto.exception import StorageResponseError
-from tests.s3.cb_test_harnass import CallbackTestHarnass
+from cb_test_harnass import CallbackTestHarnass
# We don't use the OAuth2 authentication plugin directly; importing it here
# ensures that it's loaded and available by default.
@@ -72,116 +72,88 @@ class ResumableDownloadTests(unittest.TestCase):
except StorageResponseError, e:
pass
- @classmethod
- def setUp(cls):
- """
- Creates file-like object for detination of each download test.
-
- This method's namingCase is required by the unittest framework.
- """
- cls.dst_fp = open(cls.dst_file_name, 'w')
-
- @classmethod
- def tearDown(cls):
- """
- Deletes any objects or files created by last test run, and closes
- any keys in case they were read incompletely (which would leave
- partial buffers of data for subsequent tests to trip over).
-
- This method's namingCase is required by the unittest framework.
- """
- # Recursively delete dst dir and then re-create it, so in effect we
- # remove all dirs and files under that directory.
- shutil.rmtree(cls.tmp_dir)
- os.mkdir(cls.tmp_dir)
-
- # Close test objects.
- cls.resilient_close(cls.empty_src_key)
- cls.resilient_close(cls.small_src_key)
- cls.resilient_close(cls.larger_src_key)
-
- @classmethod
- def build_test_input_object(cls, obj_name, size, debug):
+ def build_test_input_object(self, obj_name, size):
buf = []
for i in range(size):
buf.append(str(random.randint(0, 9)))
string_data = ''.join(buf)
- uri = cls.src_bucket_uri.clone_replace_name(obj_name)
+ uri = self.src_bucket_uri.clone_replace_name(obj_name)
key = uri.new_key(validate=False)
key.set_contents_from_file(StringIO.StringIO(string_data))
- # Set debug on key's connection after creating data, so only the test
- # runs will show HTTP output (if called passed debug>0).
- key.bucket.connection.debug = debug
return (string_data, key)
- @classmethod
- def set_up_class(cls, debug):
+ def setUp(self):
"""
- Initializes test suite.
+ Initializes for each test.
"""
-
# Create the test bucket.
hostname = socket.gethostname().split('.')[0]
- uri_base_str = 'gs://res_download_test_%s_%s_%s' % (
+ uri_base_str = 'gs://res-download-test-%s-%s-%s' % (
hostname, os.getpid(), int(time.time()))
- cls.src_bucket_uri = storage_uri('%s_dst' % uri_base_str)
- cls.src_bucket_uri.create_bucket()
+ self.src_bucket_uri = storage_uri('%s-dst' % uri_base_str)
+ self.src_bucket_uri.create_bucket()
# Create test source objects.
- cls.empty_src_key_size = 0
- (cls.empty_src_key_as_string, cls.empty_src_key) = (
- cls.build_test_input_object('empty', cls.empty_src_key_size,
- debug=debug))
- cls.small_src_key_size = 2 * 1024 # 2 KB.
- (cls.small_src_key_as_string, cls.small_src_key) = (
- cls.build_test_input_object('small', cls.small_src_key_size,
- debug=debug))
- cls.larger_src_key_size = 500 * 1024 # 500 KB.
- (cls.larger_src_key_as_string, cls.larger_src_key) = (
- cls.build_test_input_object('larger', cls.larger_src_key_size,
- debug=debug))
+ self.empty_src_key_size = 0
+ (self.empty_src_key_as_string, self.empty_src_key) = (
+ self.build_test_input_object('empty', self.empty_src_key_size))
+ self.small_src_key_size = 2 * 1024 # 2 KB.
+ (self.small_src_key_as_string, self.small_src_key) = (
+ self.build_test_input_object('small', self.small_src_key_size))
+ self.larger_src_key_size = 500 * 1024 # 500 KB.
+ (self.larger_src_key_as_string, self.larger_src_key) = (
+ self.build_test_input_object('larger', self.larger_src_key_size))
# Use a designated tmpdir prefix to make it easy to find the end of
# the tmp path.
- cls.tmpdir_prefix = 'tmp_resumable_download_test'
+ self.tmpdir_prefix = 'tmp_resumable_download_test'
# Create temp dir and name for download file.
- cls.tmp_dir = tempfile.mkdtemp(prefix=cls.tmpdir_prefix)
- cls.dst_file_name = '%s%sdst_file' % (cls.tmp_dir, os.sep)
+ self.tmp_dir = tempfile.mkdtemp(prefix=self.tmpdir_prefix)
+ self.dst_file_name = '%s%sdst_file' % (self.tmp_dir, os.sep)
- cls.tracker_file_name = '%s%stracker' % (cls.tmp_dir, os.sep)
+ self.tracker_file_name = '%s%stracker' % (self.tmp_dir, os.sep)
- cls.created_test_data = True
+ # Create file-like object for detination of each download test.
+ self.dst_fp = open(self.dst_file_name, 'w')
+ self.created_test_data = True
- @classmethod
- def tear_down_class(cls):
+ def tearDown(self):
"""
- Deletes test objects and bucket and tmp dir created by set_up_class.
+ Deletes test objects and bucket and tmp dir created by set_up_class,
+ and closes any keys in case they were read incompletely (which would
+ leave partial buffers of data for subsequent tests to trip over).
"""
- if not hasattr(cls, 'created_test_data'):
+ if not hasattr(self, 'created_test_data'):
return
- # Call cls.tearDown() in case the tests got interrupted, to ensure
- # dst objects get deleted.
- cls.tearDown()
+ # Recursively delete dst dir and then re-create it, so in effect we
+ # remove all dirs and files under that directory.
+ shutil.rmtree(self.tmp_dir)
+ os.mkdir(self.tmp_dir)
+
+ # Close test objects.
+ self.resilient_close(self.empty_src_key)
+ self.resilient_close(self.small_src_key)
+ self.resilient_close(self.larger_src_key)
# Delete test objects.
- cls.empty_src_key.delete()
- cls.small_src_key.delete()
- cls.larger_src_key.delete()
+ self.empty_src_key.delete()
+ self.small_src_key.delete()
+ self.larger_src_key.delete()
# Retry (for up to 2 minutes) the bucket gets deleted (it may not
# the first time round, due to eventual consistency of bucket delete
# operations).
for i in range(60):
try:
- cls.src_bucket_uri.delete_bucket()
+ self.src_bucket_uri.delete_bucket()
break
except StorageResponseError:
print 'Test bucket (%s) not yet deleted, still trying' % (
- cls.src_bucket_uri.uri)
+ self.src_bucket_uri.uri)
time.sleep(2)
- shutil.rmtree(cls.tmp_dir)
- cls.tmp_dir = tempfile.mkdtemp(prefix=cls.tmpdir_prefix)
+ shutil.rmtree(self.tmp_dir)
+ self.tmp_dir = tempfile.mkdtemp(prefix=self.tmpdir_prefix)
def test_non_resumable_download(self):
"""
@@ -379,88 +351,6 @@ class ResumableDownloadTests(unittest.TestCase):
self.dst_fp, res_download_handler=res_download_handler)
self.assertEqual(0, get_cur_file_size(self.dst_fp))
- def test_download_with_object_size_change_between_starts(self):
- """
- Tests resumable download on an object that changes sizes between inital
- download start and restart
- """
- harnass = CallbackTestHarnass(
- fail_after_n_bytes=self.larger_src_key_size/2, num_times_to_fail=2)
- # Set up first process' ResumableDownloadHandler not to do any
- # retries (initial download request will establish expected size to
- # download server).
- res_download_handler = ResumableDownloadHandler(
- tracker_file_name=self.tracker_file_name, num_retries=0)
- try:
- self.larger_src_key.get_contents_to_file(
- self.dst_fp, cb=harnass.call,
- res_download_handler=res_download_handler)
- self.fail('Did not get expected ResumableDownloadException')
- except ResumableDownloadException, e:
- # First abort (from harnass-forced failure) should be
- # ABORT_CUR_PROCESS.
- self.assertEqual(e.disposition, ResumableTransferDisposition.ABORT_CUR_PROCESS)
- # Ensure a tracker file survived.
- self.assertTrue(os.path.exists(self.tracker_file_name))
- # Try it again, this time with different src key (simulating an
- # object that changes sizes between downloads).
- try:
- self.small_src_key.get_contents_to_file(
- self.dst_fp, res_download_handler=res_download_handler)
- self.fail('Did not get expected ResumableDownloadException')
- except ResumableDownloadException, e:
- # This abort should be a hard abort (object size changing during
- # transfer).
- self.assertEqual(e.disposition, ResumableTransferDisposition.ABORT)
- self.assertNotEqual(
- e.message.find('md5 signature doesn\'t match etag'), -1)
-
- def test_download_with_file_content_change_during_download(self):
- """
- Tests resumable download on an object where the file content changes
- without changing length while download in progress
- """
- harnass = CallbackTestHarnass(
- fail_after_n_bytes=self.larger_src_key_size/2, num_times_to_fail=2)
- # Set up first process' ResumableDownloadHandler not to do any
- # retries (initial download request will establish expected size to
- # download server).
- res_download_handler = ResumableDownloadHandler(
- tracker_file_name=self.tracker_file_name, num_retries=0)
- dst_filename = self.dst_fp.name
- try:
- self.larger_src_key.get_contents_to_file(
- self.dst_fp, cb=harnass.call,
- res_download_handler=res_download_handler)
- self.fail('Did not get expected ResumableDownloadException')
- except ResumableDownloadException, e:
- # First abort (from harnass-forced failure) should be
- # ABORT_CUR_PROCESS.
- self.assertEqual(e.disposition,
- ResumableTransferDisposition.ABORT_CUR_PROCESS)
- # Ensure a tracker file survived.
- self.assertTrue(os.path.exists(self.tracker_file_name))
- # Before trying again change the first byte of the file fragment
- # that was already downloaded.
- orig_size = get_cur_file_size(self.dst_fp)
- self.dst_fp.seek(0, os.SEEK_SET)
- self.dst_fp.write('a')
- # Ensure the file size didn't change.
- self.assertEqual(orig_size, get_cur_file_size(self.dst_fp))
- try:
- self.larger_src_key.get_contents_to_file(
- self.dst_fp, cb=harnass.call,
- res_download_handler=res_download_handler)
- self.fail('Did not get expected ResumableDownloadException')
- except ResumableDownloadException, e:
- # This abort should be a hard abort (file content changing during
- # transfer).
- self.assertEqual(e.disposition, ResumableTransferDisposition.ABORT)
- self.assertNotEqual(
- e.message.find('md5 signature doesn\'t match etag'), -1)
- # Ensure the bad data wasn't left around.
- self.assertFalse(os.path.exists(dst_filename))
-
def test_download_with_invalid_tracker_etag(self):
"""
Tests resumable download with a tracker file containing an invalid etag
@@ -522,36 +412,3 @@ class ResumableDownloadTests(unittest.TestCase):
finally:
# Restore original protection of dir where tracker_file lives.
os.chmod(self.tmp_dir, save_mod)
-
-if __name__ == '__main__':
- if sys.version_info[:3] < (2, 5, 1):
- sys.exit('These tests must be run on at least Python 2.5.1\n')
-
- # Use -d to see more HTTP protocol detail during tests. Note that
- # unlike the upload test case, you won't see much for the downloads
- # because there's no HTTP server state protocol for in the download case
- # (and the actual Range GET HTTP protocol detail is suppressed by the
- # normal boto.s3.Key.get_file() processing).
- debug = 0
- opts, args = getopt.getopt(sys.argv[1:], 'd', ['debug'])
- for o, a in opts:
- if o in ('-d', '--debug'):
- debug = 2
-
- test_loader = unittest.TestLoader()
- test_loader.testMethodPrefix = 'test_'
- suite = test_loader.loadTestsFromTestCase(ResumableDownloadTests)
- # Seems like there should be a cleaner way to find the test_class.
- test_class = suite.__getattribute__('_tests')[0]
- # We call set_up_class() and tear_down_class() ourselves because we
- # don't assume the user has Python 2.7 (which supports classmethods
- # that do it, with camelCase versions of these names).
- try:
- print 'Setting up %s...' % test_class.get_suite_description()
- test_class.set_up_class(debug)
- print 'Running %s...' % test_class.get_suite_description()
- unittest.TextTestRunner(verbosity=2).run(suite)
- finally:
- print 'Cleaning up after %s...' % test_class.get_suite_description()
- test_class.tear_down_class()
- print ''
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