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test_system.py
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test_system.py
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# coding=utf-8
# Copyright 2014 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import base64
import datetime
import gzip
import hashlib
import io
import os
import re
import tempfile
import time
import unittest
import mock
import requests
import pytest
import six
from google.cloud import exceptions
from google.cloud import iam_credentials_v1
from google.cloud import storage
from google.cloud.storage._helpers import _base64_md5hash
from google.cloud.storage.bucket import LifecycleRuleDelete
from google.cloud.storage.bucket import LifecycleRuleSetStorageClass
from google.cloud import _helpers
from google.cloud import kms
from google import resumable_media
import google.auth
import google.api_core
from google.api_core import path_template
import google.oauth2
from test_utils.retry import RetryErrors
from test_utils.retry import RetryInstanceState
from test_utils.system import unique_resource_id
from test_utils.vpcsc_config import vpcsc_config
USER_PROJECT = os.environ.get("GOOGLE_CLOUD_TESTS_USER_PROJECT")
DIRNAME = os.path.realpath(os.path.dirname(__file__))
DATA_DIRNAME = os.path.abspath(os.path.join(DIRNAME, "..", "data"))
def _bad_copy(bad_request):
"""Predicate: pass only exceptions for a failed copyTo."""
err_msg = bad_request.message
return err_msg.startswith("No file found in request. (POST") and "copyTo" in err_msg
def _no_event_based_hold(blob):
return not blob.event_based_hold
retry_429 = RetryErrors(exceptions.TooManyRequests, max_tries=6)
retry_429_harder = RetryErrors(exceptions.TooManyRequests, max_tries=10)
retry_429_503 = RetryErrors(
[exceptions.TooManyRequests, exceptions.ServiceUnavailable], max_tries=10
)
retry_bad_copy = RetryErrors(exceptions.BadRequest, error_predicate=_bad_copy)
retry_no_event_based_hold = RetryInstanceState(_no_event_based_hold)
def _empty_bucket(client, bucket):
"""Empty a bucket of all existing blobs (including multiple versions)."""
for blob in list(client.list_blobs(bucket, versions=True)):
try:
blob.delete()
except exceptions.NotFound:
pass
class Config(object):
"""Run-time configuration to be modified at set-up.
This is a mutable stand-in to allow test set-up to modify
global state.
"""
CLIENT = None
TEST_BUCKET = None
TESTING_MTLS = False
def setUpModule():
Config.CLIENT = storage.Client()
bucket_name = "new" + unique_resource_id()
# In the **very** rare case the bucket name is reserved, this
# fails with a ConnectionError.
Config.TEST_BUCKET = Config.CLIENT.bucket(bucket_name)
Config.TEST_BUCKET.versioning_enabled = True
retry_429_503(Config.TEST_BUCKET.create)()
# mTLS testing uses the system test as well. For mTLS testing,
# GOOGLE_API_USE_CLIENT_CERTIFICATE env var will be set to "true"
# explicitly.
Config.TESTING_MTLS = os.getenv("GOOGLE_API_USE_CLIENT_CERTIFICATE") == "true"
def tearDownModule():
errors = (exceptions.Conflict, exceptions.TooManyRequests)
retry = RetryErrors(errors, max_tries=15)
retry(_empty_bucket)(Config.CLIENT, Config.TEST_BUCKET)
retry(Config.TEST_BUCKET.delete)(force=True)
class TestClient(unittest.TestCase):
@classmethod
def setUpClass(cls):
super(TestClient, cls).setUpClass()
if (
type(Config.CLIENT._credentials)
is not google.oauth2.service_account.Credentials
):
raise unittest.SkipTest("These tests require a service account credential")
def setUp(self):
self.case_hmac_keys_to_delete = []
def tearDown(self):
from google.cloud.storage.hmac_key import HMACKeyMetadata
for hmac_key in self.case_hmac_keys_to_delete:
if hmac_key.state == HMACKeyMetadata.ACTIVE_STATE:
hmac_key.state = HMACKeyMetadata.INACTIVE_STATE
hmac_key.update()
if hmac_key.state == HMACKeyMetadata.INACTIVE_STATE:
retry_429_harder(hmac_key.delete)()
def test_get_service_account_email(self):
domain = "gs-project-accounts.iam.gserviceaccount.com"
email = Config.CLIENT.get_service_account_email()
new_style = re.compile(r"service-(?P<projnum>[^@]+)@" + domain)
old_style = re.compile(r"{}@{}".format(Config.CLIENT.project, domain))
patterns = [new_style, old_style]
matches = [pattern.match(email) for pattern in patterns]
self.assertTrue(any(match for match in matches if match is not None))
@staticmethod
def _get_before_hmac_keys(client):
from google.cloud.storage.hmac_key import HMACKeyMetadata
before_hmac_keys = set(client.list_hmac_keys())
now = datetime.datetime.utcnow().replace(tzinfo=_helpers.UTC)
yesterday = now - datetime.timedelta(days=1)
# Delete any HMAC keys older than a day.
for hmac_key in list(before_hmac_keys):
if hmac_key.time_created < yesterday:
if hmac_key.state != HMACKeyMetadata.INACTIVE_STATE:
hmac_key.state = HMACKeyMetadata.INACTIVE_STATE
hmac_key.update()
hmac_key.delete()
before_hmac_keys.remove(hmac_key)
return before_hmac_keys
def test_hmac_key_crud(self):
from google.cloud.storage.hmac_key import HMACKeyMetadata
credentials = Config.CLIENT._credentials
email = credentials.service_account_email
before_hmac_keys = self._get_before_hmac_keys(Config.CLIENT)
metadata, secret = Config.CLIENT.create_hmac_key(email)
self.case_hmac_keys_to_delete.append(metadata)
self.assertIsInstance(secret, six.text_type)
self.assertEqual(len(secret), 40)
after_hmac_keys = set(Config.CLIENT.list_hmac_keys())
self.assertFalse(metadata in before_hmac_keys)
self.assertTrue(metadata in after_hmac_keys)
another = HMACKeyMetadata(Config.CLIENT)
another._properties["accessId"] = "nonesuch"
self.assertFalse(another.exists())
another._properties["accessId"] = metadata.access_id
self.assertTrue(another.exists())
another.reload()
self.assertEqual(another._properties, metadata._properties)
metadata.state = HMACKeyMetadata.INACTIVE_STATE
metadata.update()
metadata.delete()
self.case_hmac_keys_to_delete.remove(metadata)
class TestStorageBuckets(unittest.TestCase):
def setUp(self):
self.case_buckets_to_delete = []
def tearDown(self):
for bucket_name in self.case_buckets_to_delete:
bucket = Config.CLIENT.bucket(bucket_name)
retry_429_harder(bucket.delete)()
def test_create_bucket(self):
new_bucket_name = "a-new-bucket" + unique_resource_id("-")
self.assertRaises(
exceptions.NotFound, Config.CLIENT.get_bucket, new_bucket_name
)
created = retry_429_503(Config.CLIENT.create_bucket)(new_bucket_name)
self.case_buckets_to_delete.append(new_bucket_name)
self.assertEqual(created.name, new_bucket_name)
def test_bucket_create_w_alt_storage_class(self):
from google.cloud.storage import constants
new_bucket_name = "bucket-w-archive" + unique_resource_id("-")
self.assertRaises(
exceptions.NotFound, Config.CLIENT.get_bucket, new_bucket_name
)
bucket = Config.CLIENT.bucket(new_bucket_name)
bucket.storage_class = constants.ARCHIVE_STORAGE_CLASS
retry_429_503(bucket.create)()
self.case_buckets_to_delete.append(new_bucket_name)
created = Config.CLIENT.get_bucket(new_bucket_name)
self.assertEqual(created.storage_class, constants.ARCHIVE_STORAGE_CLASS)
def test_lifecycle_rules(self):
import datetime
from google.cloud.storage import constants
new_bucket_name = "w-lifcycle-rules" + unique_resource_id("-")
custom_time_before = datetime.date(2018, 8, 1)
noncurrent_before = datetime.date(2018, 8, 1)
self.assertRaises(
exceptions.NotFound, Config.CLIENT.get_bucket, new_bucket_name
)
bucket = Config.CLIENT.bucket(new_bucket_name)
bucket.add_lifecycle_delete_rule(
age=42,
number_of_newer_versions=3,
days_since_custom_time=2,
custom_time_before=custom_time_before,
days_since_noncurrent_time=2,
noncurrent_time_before=noncurrent_before,
)
bucket.add_lifecycle_set_storage_class_rule(
constants.COLDLINE_STORAGE_CLASS,
is_live=False,
matches_storage_class=[constants.NEARLINE_STORAGE_CLASS],
)
expected_rules = [
LifecycleRuleDelete(
age=42,
number_of_newer_versions=3,
days_since_custom_time=2,
custom_time_before=custom_time_before,
days_since_noncurrent_time=2,
noncurrent_time_before=noncurrent_before,
),
LifecycleRuleSetStorageClass(
constants.COLDLINE_STORAGE_CLASS,
is_live=False,
matches_storage_class=[constants.NEARLINE_STORAGE_CLASS],
),
]
retry_429_503(bucket.create)(location="us")
self.case_buckets_to_delete.append(new_bucket_name)
self.assertEqual(bucket.name, new_bucket_name)
self.assertEqual(list(bucket.lifecycle_rules), expected_rules)
bucket.clear_lifecyle_rules()
bucket.patch()
self.assertEqual(list(bucket.lifecycle_rules), [])
def test_list_buckets(self):
buckets_to_create = [
"new" + unique_resource_id(),
"newer" + unique_resource_id(),
"newest" + unique_resource_id(),
]
created_buckets = []
for bucket_name in buckets_to_create:
bucket = Config.CLIENT.bucket(bucket_name)
retry_429_503(bucket.create)()
self.case_buckets_to_delete.append(bucket_name)
# Retrieve the buckets.
all_buckets = Config.CLIENT.list_buckets()
created_buckets = [
bucket for bucket in all_buckets if bucket.name in buckets_to_create
]
self.assertEqual(len(created_buckets), len(buckets_to_create))
def test_bucket_update_labels(self):
bucket_name = "update-labels" + unique_resource_id("-")
bucket = retry_429_503(Config.CLIENT.create_bucket)(bucket_name)
self.case_buckets_to_delete.append(bucket_name)
self.assertTrue(bucket.exists())
updated_labels = {"test-label": "label-value"}
bucket.labels = updated_labels
bucket.update()
self.assertEqual(bucket.labels, updated_labels)
new_labels = {"another-label": "another-value"}
bucket.labels = new_labels
bucket.patch()
self.assertEqual(bucket.labels, new_labels)
bucket.labels = {}
bucket.update()
self.assertEqual(bucket.labels, {})
def test_get_set_iam_policy(self):
from google.cloud.storage.iam import STORAGE_OBJECT_VIEWER_ROLE
from google.api_core.exceptions import BadRequest, PreconditionFailed
bucket_name = "iam-policy" + unique_resource_id("-")
bucket = retry_429_503(Config.CLIENT.create_bucket)(bucket_name)
self.case_buckets_to_delete.append(bucket_name)
self.assertTrue(bucket.exists())
policy_no_version = bucket.get_iam_policy()
self.assertEqual(policy_no_version.version, 1)
policy = bucket.get_iam_policy(requested_policy_version=3)
self.assertEqual(policy, policy_no_version)
member = "serviceAccount:{}".format(Config.CLIENT.get_service_account_email())
BINDING_W_CONDITION = {
"role": STORAGE_OBJECT_VIEWER_ROLE,
"members": {member},
"condition": {
"title": "always-true",
"description": "test condition always-true",
"expression": "true",
},
}
policy.bindings.append(BINDING_W_CONDITION)
with pytest.raises(
PreconditionFailed, match="enable uniform bucket-level access"
):
bucket.set_iam_policy(policy)
bucket.iam_configuration.uniform_bucket_level_access_enabled = True
bucket.patch()
policy = bucket.get_iam_policy(requested_policy_version=3)
policy.bindings.append(BINDING_W_CONDITION)
with pytest.raises(BadRequest, match="at least 3"):
bucket.set_iam_policy(policy)
policy.version = 3
returned_policy = bucket.set_iam_policy(policy)
self.assertEqual(returned_policy.version, 3)
self.assertEqual(returned_policy.bindings, policy.bindings)
fetched_policy = bucket.get_iam_policy(requested_policy_version=3)
self.assertEqual(fetched_policy.bindings, returned_policy.bindings)
@unittest.skipUnless(USER_PROJECT, "USER_PROJECT not set in environment.")
def test_crud_bucket_with_requester_pays(self):
new_bucket_name = "w-requester-pays" + unique_resource_id("-")
created = retry_429_503(Config.CLIENT.create_bucket)(
new_bucket_name, requester_pays=True
)
self.case_buckets_to_delete.append(new_bucket_name)
self.assertEqual(created.name, new_bucket_name)
self.assertTrue(created.requester_pays)
with_user_project = Config.CLIENT.bucket(
new_bucket_name, user_project=USER_PROJECT
)
# Bucket will be deleted in-line below.
self.case_buckets_to_delete.remove(new_bucket_name)
try:
# Exercise 'buckets.get' w/ userProject.
self.assertTrue(with_user_project.exists())
with_user_project.reload()
self.assertTrue(with_user_project.requester_pays)
# Exercise 'buckets.patch' w/ userProject.
with_user_project.configure_website(
main_page_suffix="index.html", not_found_page="404.html"
)
with_user_project.patch()
self.assertEqual(
with_user_project._properties["website"],
{"mainPageSuffix": "index.html", "notFoundPage": "404.html"},
)
# Exercise 'buckets.update' w/ userProject.
new_labels = {"another-label": "another-value"}
with_user_project.labels = new_labels
with_user_project.update()
self.assertEqual(with_user_project.labels, new_labels)
finally:
# Exercise 'buckets.delete' w/ userProject.
with_user_project.delete()
@unittest.skipUnless(USER_PROJECT, "USER_PROJECT not set in environment.")
def test_bucket_acls_iam_with_user_project(self):
new_bucket_name = "acl-w-user-project" + unique_resource_id("-")
retry_429_503(Config.CLIENT.create_bucket)(new_bucket_name, requester_pays=True)
self.case_buckets_to_delete.append(new_bucket_name)
with_user_project = Config.CLIENT.bucket(
new_bucket_name, user_project=USER_PROJECT
)
# Exercise bucket ACL w/ userProject
acl = with_user_project.acl
acl.reload()
acl.all().grant_read()
acl.save()
self.assertIn("READER", acl.all().get_roles())
del acl.entities["allUsers"]
acl.save()
self.assertFalse(acl.has_entity("allUsers"))
# Exercise default object ACL w/ userProject
doa = with_user_project.default_object_acl
doa.reload()
doa.all().grant_read()
doa.save()
self.assertIn("READER", doa.all().get_roles())
# Exercise IAM w/ userProject
test_permissions = ["storage.buckets.get"]
self.assertEqual(
with_user_project.test_iam_permissions(test_permissions), test_permissions
)
policy = with_user_project.get_iam_policy()
viewers = policy.setdefault("roles/storage.objectViewer", set())
viewers.add(policy.all_users())
with_user_project.set_iam_policy(policy)
@unittest.skipUnless(USER_PROJECT, "USER_PROJECT not set in environment.")
def test_copy_existing_file_with_user_project(self):
new_bucket_name = "copy-w-requester-pays" + unique_resource_id("-")
created = retry_429_503(Config.CLIENT.create_bucket)(
new_bucket_name, requester_pays=True
)
self.case_buckets_to_delete.append(new_bucket_name)
self.assertEqual(created.name, new_bucket_name)
self.assertTrue(created.requester_pays)
to_delete = []
blob = storage.Blob("simple", bucket=created)
blob.upload_from_string(b"DEADBEEF")
to_delete.append(blob)
try:
with_user_project = Config.CLIENT.bucket(
new_bucket_name, user_project=USER_PROJECT
)
new_blob = retry_bad_copy(with_user_project.copy_blob)(
blob, with_user_project, "simple-copy"
)
to_delete.append(new_blob)
base_contents = blob.download_as_bytes()
copied_contents = new_blob.download_as_bytes()
self.assertEqual(base_contents, copied_contents)
finally:
for blob in to_delete:
retry_429_harder(blob.delete)()
def test_copy_file_with_generation_match(self):
new_bucket_name = "generation-match" + unique_resource_id("-")
created = retry_429_503(Config.CLIENT.create_bucket)(
new_bucket_name, requester_pays=True
)
self.case_buckets_to_delete.append(new_bucket_name)
self.assertEqual(created.name, new_bucket_name)
to_delete = []
blob = storage.Blob("simple", bucket=created)
blob.upload_from_string(b"DEADBEEF")
to_delete.append(blob)
try:
dest_bucket = Config.CLIENT.bucket(new_bucket_name)
new_blob = dest_bucket.copy_blob(
blob,
dest_bucket,
"simple-copy",
if_source_generation_match=blob.generation,
)
to_delete.append(new_blob)
base_contents = blob.download_as_bytes()
copied_contents = new_blob.download_as_bytes()
self.assertEqual(base_contents, copied_contents)
finally:
for blob in to_delete:
retry_429_harder(blob.delete)()
def test_copy_file_with_metageneration_match(self):
new_bucket_name = "generation-match" + unique_resource_id("-")
created = retry_429_503(Config.CLIENT.create_bucket)(
new_bucket_name, requester_pays=True
)
self.case_buckets_to_delete.append(new_bucket_name)
self.assertEqual(created.name, new_bucket_name)
to_delete = []
blob = storage.Blob("simple", bucket=created)
blob.upload_from_string(b"DEADBEEF")
to_delete.append(blob)
try:
dest_bucket = Config.CLIENT.bucket(new_bucket_name)
new_blob = dest_bucket.copy_blob(
blob,
dest_bucket,
"simple-copy",
if_source_metageneration_match=blob.metageneration,
)
to_delete.append(new_blob)
base_contents = blob.download_as_bytes()
copied_contents = new_blob.download_as_bytes()
self.assertEqual(base_contents, copied_contents)
finally:
for blob in to_delete:
retry_429_harder(blob.delete)()
@unittest.skipUnless(USER_PROJECT, "USER_PROJECT not set in environment.")
def test_bucket_get_blob_with_user_project(self):
new_bucket_name = "w-requester-pays" + unique_resource_id("-")
data = b"DEADBEEF"
created = retry_429_503(Config.CLIENT.create_bucket)(
new_bucket_name, requester_pays=True
)
self.case_buckets_to_delete.append(new_bucket_name)
self.assertEqual(created.name, new_bucket_name)
self.assertTrue(created.requester_pays)
with_user_project = Config.CLIENT.bucket(
new_bucket_name, user_project=USER_PROJECT
)
self.assertIsNone(with_user_project.get_blob("nonesuch"))
to_add = created.blob("blob-name")
to_add.upload_from_string(data)
try:
found = with_user_project.get_blob("blob-name")
self.assertEqual(found.download_as_bytes(), data)
finally:
to_add.delete()
class TestStorageFiles(unittest.TestCase):
FILES = {
"logo": {"path": os.path.join(DATA_DIRNAME, "CloudPlatform_128px_Retina.png")},
"big": {"path": os.path.join(DATA_DIRNAME, "five-point-one-mb-file.zip")},
"simple": {"path": os.path.join(DATA_DIRNAME, "simple.txt")},
}
@classmethod
def setUpClass(cls):
super(TestStorageFiles, cls).setUpClass()
for file_data in cls.FILES.values():
with open(file_data["path"], "rb") as file_obj:
file_data["hash"] = _base64_md5hash(file_obj)
cls.bucket = Config.TEST_BUCKET
def setUp(self):
self.case_blobs_to_delete = []
def tearDown(self):
errors = (exceptions.TooManyRequests, exceptions.ServiceUnavailable)
retry = RetryErrors(errors, max_tries=6)
for blob in self.case_blobs_to_delete:
retry(blob.delete)()
class TestStorageWriteFiles(TestStorageFiles):
ENCRYPTION_KEY = "b23ff11bba187db8c37077e6af3b25b8"
@classmethod
def setUpClass(cls):
super(TestStorageWriteFiles, cls).setUpClass()
if (
type(Config.CLIENT._credentials)
is not google.oauth2.service_account.Credentials
):
raise unittest.SkipTest("These tests require a service account credential")
def test_large_file_write_from_stream(self):
blob = self.bucket.blob("LargeFile")
file_data = self.FILES["big"]
with open(file_data["path"], "rb") as file_obj:
blob.upload_from_file(file_obj)
self.case_blobs_to_delete.append(blob)
md5_hash = blob.md5_hash
if not isinstance(md5_hash, six.binary_type):
md5_hash = md5_hash.encode("utf-8")
self.assertEqual(md5_hash, file_data["hash"])
def test_large_file_write_from_stream_with_checksum(self):
blob = self.bucket.blob("LargeFile")
file_data = self.FILES["big"]
with open(file_data["path"], "rb") as file_obj:
blob.upload_from_file(file_obj, checksum="crc32c")
self.case_blobs_to_delete.append(blob)
md5_hash = blob.md5_hash
if not isinstance(md5_hash, six.binary_type):
md5_hash = md5_hash.encode("utf-8")
self.assertEqual(md5_hash, file_data["hash"])
def test_large_file_write_from_stream_with_failed_checksum(self):
blob = self.bucket.blob("LargeFile")
file_data = self.FILES["big"]
# Intercept the digest processing at the last stage and replace it with garbage.
# This is done with a patch to monkey-patch the resumable media library's checksum
# processing; it does not mock a remote interface like a unit test would. The
# remote API is still exercised.
with open(file_data["path"], "rb") as file_obj:
with mock.patch(
"google.resumable_media._helpers.prepare_checksum_digest",
return_value="FFFFFF==",
):
with self.assertRaises(resumable_media.DataCorruption):
blob.upload_from_file(file_obj, checksum="crc32c")
self.assertFalse(blob.exists())
def test_large_encrypted_file_write_from_stream(self):
blob = self.bucket.blob("LargeFile", encryption_key=self.ENCRYPTION_KEY)
file_data = self.FILES["big"]
with open(file_data["path"], "rb") as file_obj:
blob.upload_from_file(file_obj)
self.case_blobs_to_delete.append(blob)
md5_hash = blob.md5_hash
if not isinstance(md5_hash, six.binary_type):
md5_hash = md5_hash.encode("utf-8")
self.assertEqual(md5_hash, file_data["hash"])
with tempfile.NamedTemporaryFile() as temp_f:
with open(temp_f.name, "wb") as file_obj:
Config.CLIENT.download_blob_to_file(blob, file_obj)
with open(temp_f.name, "rb") as file_obj:
md5_temp_hash = _base64_md5hash(file_obj)
self.assertEqual(md5_temp_hash, file_data["hash"])
def test_small_file_write_from_filename(self):
blob = self.bucket.blob("SmallFile")
file_data = self.FILES["simple"]
blob.upload_from_filename(file_data["path"])
self.case_blobs_to_delete.append(blob)
md5_hash = blob.md5_hash
if not isinstance(md5_hash, six.binary_type):
md5_hash = md5_hash.encode("utf-8")
self.assertEqual(md5_hash, file_data["hash"])
def test_small_file_write_from_filename_with_checksum(self):
blob = self.bucket.blob("SmallFile")
file_data = self.FILES["simple"]
blob.upload_from_filename(file_data["path"], checksum="crc32c")
self.case_blobs_to_delete.append(blob)
md5_hash = blob.md5_hash
if not isinstance(md5_hash, six.binary_type):
md5_hash = md5_hash.encode("utf-8")
self.assertEqual(md5_hash, file_data["hash"])
def test_small_file_write_from_filename_with_failed_checksum(self):
blob = self.bucket.blob("SmallFile")
file_data = self.FILES["simple"]
# Intercept the digest processing at the last stage and replace it with garbage
with mock.patch(
"google.resumable_media._helpers.prepare_checksum_digest",
return_value="FFFFFF==",
):
with self.assertRaises(google.api_core.exceptions.BadRequest):
blob.upload_from_filename(file_data["path"], checksum="crc32c")
self.assertFalse(blob.exists())
@unittest.skipUnless(USER_PROJECT, "USER_PROJECT not set in environment.")
def test_crud_blob_w_user_project(self):
with_user_project = Config.CLIENT.bucket(
self.bucket.name, user_project=USER_PROJECT
)
blob = with_user_project.blob("SmallFile")
file_data = self.FILES["simple"]
with open(file_data["path"], mode="rb") as to_read:
file_contents = to_read.read()
# Exercise 'objects.insert' w/ userProject.
blob.upload_from_filename(file_data["path"])
gen0 = blob.generation
# Upload a second generation of the blob
blob.upload_from_string(b"gen1")
gen1 = blob.generation
blob0 = with_user_project.blob("SmallFile", generation=gen0)
blob1 = with_user_project.blob("SmallFile", generation=gen1)
# Exercise 'objects.get' w/ generation
self.assertEqual(with_user_project.get_blob(blob.name).generation, gen1)
self.assertEqual(
with_user_project.get_blob(blob.name, generation=gen0).generation, gen0
)
try:
# Exercise 'objects.get' (metadata) w/ userProject.
self.assertTrue(blob.exists())
blob.reload()
# Exercise 'objects.get' (media) w/ userProject.
self.assertEqual(blob0.download_as_bytes(), file_contents)
self.assertEqual(blob1.download_as_bytes(), b"gen1")
# Exercise 'objects.patch' w/ userProject.
blob0.content_language = "en"
blob0.patch()
self.assertEqual(blob0.content_language, "en")
self.assertIsNone(blob1.content_language)
# Exercise 'objects.update' w/ userProject.
metadata = {"foo": "Foo", "bar": "Bar"}
blob0.metadata = metadata
blob0.update()
self.assertEqual(blob0.metadata, metadata)
self.assertIsNone(blob1.metadata)
finally:
# Exercise 'objects.delete' (metadata) w/ userProject.
blobs = Config.CLIENT.list_blobs(
with_user_project, prefix=blob.name, versions=True
)
self.assertEqual([each.generation for each in blobs], [gen0, gen1])
blob0.delete()
blobs = Config.CLIENT.list_blobs(
with_user_project, prefix=blob.name, versions=True
)
self.assertEqual([each.generation for each in blobs], [gen1])
blob1.delete()
def test_crud_blob_w_generation_match(self):
WRONG_GENERATION_NUMBER = 6
WRONG_METAGENERATION_NUMBER = 9
bucket = Config.CLIENT.bucket(self.bucket.name)
blob = bucket.blob("SmallFile")
file_data = self.FILES["simple"]
with open(file_data["path"], mode="rb") as to_read:
file_contents = to_read.read()
blob.upload_from_filename(file_data["path"])
gen0 = blob.generation
# Upload a second generation of the blob
blob.upload_from_string(b"gen1")
gen1 = blob.generation
blob0 = bucket.blob("SmallFile", generation=gen0)
blob1 = bucket.blob("SmallFile", generation=gen1)
try:
# Exercise 'objects.get' (metadata) w/ generation match.
with self.assertRaises(google.api_core.exceptions.PreconditionFailed):
blob.exists(if_generation_match=WRONG_GENERATION_NUMBER)
self.assertTrue(blob.exists(if_generation_match=gen1))
with self.assertRaises(google.api_core.exceptions.PreconditionFailed):
blob.reload(if_metageneration_match=WRONG_METAGENERATION_NUMBER)
blob.reload(if_generation_match=gen1)
# Exercise 'objects.get' (media) w/ generation match.
self.assertEqual(
blob0.download_as_bytes(if_generation_match=gen0), file_contents
)
self.assertEqual(
blob1.download_as_bytes(if_generation_not_match=gen0), b"gen1"
)
# Exercise 'objects.patch' w/ generation match.
blob0.content_language = "en"
blob0.patch(if_generation_match=gen0)
self.assertEqual(blob0.content_language, "en")
self.assertIsNone(blob1.content_language)
# Exercise 'objects.update' w/ generation match.
metadata = {"foo": "Foo", "bar": "Bar"}
blob0.metadata = metadata
blob0.update(if_generation_match=gen0)
self.assertEqual(blob0.metadata, metadata)
self.assertIsNone(blob1.metadata)
finally:
# Exercise 'objects.delete' (metadata) w/ generation match.
with self.assertRaises(google.api_core.exceptions.PreconditionFailed):
blob0.delete(if_metageneration_match=WRONG_METAGENERATION_NUMBER)
blob0.delete(if_generation_match=gen0)
blob1.delete(if_metageneration_not_match=WRONG_METAGENERATION_NUMBER)
@unittest.skipUnless(USER_PROJECT, "USER_PROJECT not set in environment.")
def test_blob_acl_w_user_project(self):
with_user_project = Config.CLIENT.bucket(
self.bucket.name, user_project=USER_PROJECT
)
blob = with_user_project.blob("SmallFile")
file_data = self.FILES["simple"]
blob.upload_from_filename(file_data["path"])
self.case_blobs_to_delete.append(blob)
# Exercise bucket ACL w/ userProject
acl = blob.acl
acl.reload()
acl.all().grant_read()
acl.save()
self.assertIn("READER", acl.all().get_roles())
del acl.entities["allUsers"]
acl.save()
self.assertFalse(acl.has_entity("allUsers"))
def test_upload_blob_acl(self):
control = self.bucket.blob("logo")
control_data = self.FILES["logo"]
blob = self.bucket.blob("SmallFile")
file_data = self.FILES["simple"]
try:
control.upload_from_filename(control_data["path"])
blob.upload_from_filename(file_data["path"], predefined_acl="publicRead")
finally:
self.case_blobs_to_delete.append(blob)
self.case_blobs_to_delete.append(control)
control_acl = control.acl
self.assertNotIn("READER", control_acl.all().get_roles())
acl = blob.acl
self.assertIn("READER", acl.all().get_roles())
acl.all().revoke_read()
self.assertSequenceEqual(acl.all().get_roles(), set([]))
self.assertEqual(control_acl.all().get_roles(), acl.all().get_roles())
def test_write_metadata(self):
filename = self.FILES["logo"]["path"]
blob_name = os.path.basename(filename)
blob = storage.Blob(blob_name, bucket=self.bucket)
blob.upload_from_filename(filename)
self.case_blobs_to_delete.append(blob)
# NOTE: This should not be necessary. We should be able to pass
# it in to upload_file and also to upload_from_string.
blob.content_type = "image/png"
self.assertEqual(blob.content_type, "image/png")
metadata = {"foo": "Foo", "bar": "Bar"}
blob.metadata = metadata
blob.patch()
blob.reload()
self.assertEqual(blob.metadata, metadata)
# Ensure that metadata keys can be deleted by setting equal to None.
new_metadata = {"foo": "Foo", "bar": None}
blob.metadata = new_metadata
blob.patch()
blob.reload()
self.assertEqual(blob.metadata, {"foo": "Foo"})
def test_direct_write_and_read_into_file(self):
blob = self.bucket.blob("MyBuffer")
file_contents = b"Hello World"
blob.upload_from_string(file_contents)
self.case_blobs_to_delete.append(blob)
same_blob = self.bucket.blob("MyBuffer")
same_blob.reload() # Initialize properties.
with tempfile.NamedTemporaryFile() as temp_f:
with open(temp_f.name, "wb") as file_obj:
Config.CLIENT.download_blob_to_file(same_blob, file_obj)
with open(temp_f.name, "rb") as file_obj:
stored_contents = file_obj.read()
self.assertEqual(file_contents, stored_contents)
def test_download_w_generation_match(self):
WRONG_GENERATION_NUMBER = 6
blob = self.bucket.blob("MyBuffer")
file_contents = b"Hello World"
blob.upload_from_string(file_contents)
self.case_blobs_to_delete.append(blob)
same_blob = self.bucket.blob("MyBuffer")
same_blob.reload() # Initialize properties.
with tempfile.NamedTemporaryFile() as temp_f:
with open(temp_f.name, "wb") as file_obj:
with self.assertRaises(google.api_core.exceptions.PreconditionFailed):
Config.CLIENT.download_blob_to_file(
same_blob, file_obj, if_generation_match=WRONG_GENERATION_NUMBER
)
Config.CLIENT.download_blob_to_file(
same_blob,
file_obj,
if_generation_match=blob.generation,
if_metageneration_match=blob.metageneration,
)
with open(temp_f.name, "rb") as file_obj:
stored_contents = file_obj.read()
self.assertEqual(file_contents, stored_contents)
def test_download_w_failed_crc32c_checksum(self):
blob = self.bucket.blob("FailedChecksumBlob")
file_contents = b"Hello World"
blob.upload_from_string(file_contents)
self.case_blobs_to_delete.append(blob)
with tempfile.NamedTemporaryFile() as temp_f:
# Intercept the digest processing at the last stage and replace it with garbage.
# This is done with a patch to monkey-patch the resumable media library's checksum
# processing; it does not mock a remote interface like a unit test would. The
# remote API is still exercised.
with mock.patch(
"google.resumable_media._helpers.prepare_checksum_digest",
return_value="FFFFFF==",
):
with self.assertRaises(resumable_media.DataCorruption):
blob.download_to_filename(temp_f.name, checksum="crc32c")
# Confirm the file was deleted on failure
self.assertFalse(os.path.isfile(temp_f.name))
# Now download with checksumming turned off
blob.download_to_filename(temp_f.name, checksum=None)
with open(temp_f.name, "rb") as file_obj:
stored_contents = file_obj.read()
self.assertEqual(file_contents, stored_contents)
def test_copy_existing_file(self):
filename = self.FILES["logo"]["path"]
blob = storage.Blob("CloudLogo", bucket=self.bucket)