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# Copyright 2016 Google Inc. All Rights Reserved.

#

# 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 os

import random

import string

import backoff

from google.cloud import logging

import pytest

import export

BUCKET = os.environ['CLOUD_STORAGE_BUCKET']

TEST_SINK_NAME_TMPL = 'example_sink_{}'

TEST_SINK_FILTER = 'severity>=CRITICAL'

def _random_id():

return ''.join(

random.choice(string.ascii_uppercase + string.digits)

for _ in range(6))

@pytest.yield_fixture

def example_sink():

client = logging.Client()

sink = client.sink(

TEST_SINK_NAME_TMPL.format(_random_id()),

TEST_SINK_FILTER,

'storage.googleapis.com/{bucket}'.format(bucket=BUCKET))

sink.create()

yield sink

try:

sink.delete()

except Exception:

pass

def test_list(example_sink, capsys):

@backoff.on_exception(backoff.expo, AssertionError, max_time=60)

def eventually_consistent_test():

export.list_sinks()

out, _ = capsys.readouterr()

assert example_sink.name in out

eventually_consistent_test()

def test_create(capsys):

sink_name = TEST_SINK_NAME_TMPL.format(_random_id())

try:

export.create_sink(

sink_name,

BUCKET,

TEST_SINK_FILTER)

# Clean-up the temporary sink.

finally:

try:

logging.Client().sink(sink_name).delete()

except Exception:

pass

out, _ = capsys.readouterr()

assert sink_name in out

def test_update(example_sink, capsys):

updated_filter = 'severity>=INFO'

export.update_sink(example_sink.name, updated_filter)

example_sink.reload()

assert example_sink.filter_ == updated_filter

def test_delete(example_sink, capsys):

export.delete_sink(example_sink.name)

assert not example_sink.exists()