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#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You 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 unittest
from skywalking.sampling.sampling_service import SamplingService, SamplingServiceAsync
class TestSampling(unittest.TestCase):
def test_try_sampling(self):
from skywalking import config
config.sample_n_per_3_secs = 2
sampling_service = SamplingService()
assert sampling_service.try_sampling()
assert sampling_service.try_sampling()
assert not sampling_service.try_sampling()
def test_force_sampled(self):
from skywalking import config
config.sample_n_per_3_secs = 1
sampling_service = SamplingService()
assert sampling_service.try_sampling()
sampling_service.force_sampled()
assert sampling_service.sampling_factor == 2
def test_reset_sampling_factor(self):
from skywalking import config
config.sample_n_per_3_secs = 1
sampling_service = SamplingService()
assert sampling_service.try_sampling()
assert not sampling_service.try_sampling()
sampling_service.reset_sampling_factor()
assert sampling_service.try_sampling()
class TestSamplingAsync(unittest.IsolatedAsyncioTestCase):
async def test_try_sampling(self):
from skywalking import config
config.sample_n_per_3_secs = 2
sampling_service = SamplingServiceAsync()
assert sampling_service.try_sampling()
assert sampling_service.try_sampling()
assert not sampling_service.try_sampling()
async def test_force_sampled(self):
from skywalking import config
config.sample_n_per_3_secs = 1
sampling_service = SamplingServiceAsync()
assert sampling_service.try_sampling()
sampling_service.force_sampled()
assert sampling_service.sampling_factor == 2
async def test_reset_sampling_factor(self):
from skywalking import config
config.sample_n_per_3_secs = 1
sampling_service = SamplingServiceAsync()
assert sampling_service.try_sampling()
assert not sampling_service.try_sampling()
await sampling_service.reset_sampling_factor()
assert sampling_service.try_sampling()
if __name__ == '__main__':
unittest.main()