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# Copyright 2015 David Caro
#
# 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 time
from multiprocessing import cpu_count
from testtools import matchers
from testtools import TestCase
from jenkins_jobs.parallel import concurrent
from tests.base import mock
class TestCaseParallel(TestCase):
def test_parallel_correct_order(self):
expected = list(range(10, 20))
@concurrent
def parallel_test(num_base, num_extra):
return num_base + num_extra
parallel_args = [{'num_extra': num} for num in range(10)]
result = parallel_test(10, concurrent=parallel_args)
self.assertThat(result, matchers.Equals(expected))
def test_parallel_time_less_than_serial(self):
@concurrent
def wait(secs):
time.sleep(secs)
before = time.time()
# ten threads to make it as fast as possible
wait(concurrent=[{'secs': 1} for _ in range(10)], n_workers=10)
after = time.time()
self.assertThat(after - before, matchers.LessThan(5))
def test_parallel_single_thread(self):
expected = list(range(10, 20))
@concurrent
def parallel_test(num_base, num_extra):
return num_base + num_extra
parallel_args = [{'num_extra': num} for num in range(10)]
result = parallel_test(10, concurrent=parallel_args, n_workers=1)
self.assertThat(result, matchers.Equals(expected))
@mock.patch('jenkins_jobs.parallel.cpu_count', wraps=cpu_count)
def test_use_auto_detect_cores(self, mockCpu_count):
@concurrent
def parallel_test():
return True
result = parallel_test(concurrent=[{} for _ in range(10)],
n_workers=0)
self.assertThat(result, matchers.Equals([True for _ in range(10)]))
mockCpu_count.assert_called_once_with()
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