forked from dw/py-lightstreamer
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lightstreamer_test.py
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/
lightstreamer_test.py
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#
# Copyright 2012, the py-lightstreamer authors
#
# 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 threading
import unittest
from lightstreamer import TransientError
from lightstreamer import Dispatcher
from lightstreamer import LsClient
from lightstreamer import WorkQueue
from lightstreamer import _decode_field
from lightstreamer import _replace_url_host
class DispatcherTestCase(unittest.TestCase):
def setUp(self):
self.fired1 = []
self.fired2 = []
self.disp = Dispatcher()
def _callback1(self, *args, **kwargs):
self.fired1.append((args, kwargs))
def _callback2(self, *args, **kwargs):
self.fired2.append((args, kwargs))
def _crash(self):
raise RuntimeError('ignore this error')
def test_fire_no_listeners(self):
assert self.disp.listening('eek') == 0
self.disp.dispatch('eek')
def test_single_fire(self):
self.disp.listen('eek', self._callback1)
assert self.disp.listening('eek') == 1
self.disp.dispatch('eek', 1, a=2)
assert self.fired1 == [((1,), {'a': 2})]
def test_multiple_fire(self):
self.disp.listen('eek', self._callback1)
self.disp.listen('eek', self._callback2)
assert self.disp.listening('eek') == 2
self.disp.dispatch('eek', 1, a=2)
assert self.fired1 == [((1,), {'a': 2})]
assert self.fired2 == [((1,), {'a': 2})]
def test_crash(self):
self.disp.listen('eek', self._crash)
self.disp.dispatch('eek')
def test_ignore_dups(self):
self.disp.listen('eek', self._callback1)
self.disp.listen('eek', self._callback1)
assert self.disp.listening('eek') == 1
self.disp.dispatch('eek')
assert self.fired1 == [((), {})]
def test_unlisten(self):
self.disp.listen('eek', self._callback1)
self.disp.unlisten('eek', self._callback1)
assert self.disp.listening('eek') == 0
self.disp.dispatch('eek', 1, a=2)
assert self.fired1 == []
class WorkQueueTestCase(unittest.TestCase):
def setUp(self):
self.wq = WorkQueue()
def tearDown(self):
self.wq.stop()
def _capture_thread(self):
self.invoking_thread = threading.currentThread()
self.sem.release()
def test_fire(self):
self.sem = threading.Semaphore(0)
self.wq.push(self._capture_thread)
self.sem.acquire()
assert self.invoking_thread != threading.currentThread()
class DecodeFieldTestCase(unittest.TestCase):
def test_empty(self):
self.assertEqual(_decode_field('$'), '')
self.assertEqual(_decode_field('$', '$'), '')
def test_null(self):
self.assertTrue(_decode_field('#') is None)
self.assertTrue(_decode_field('#', '#') is None)
def test_prev(self):
self.assertTrue(_decode_field('', None) is None)
self.assertTrue(_decode_field('', '') == '')
self.assertTrue(_decode_field('', '#') == '#')
def test_prefix_strip(self):
self.assertEqual(_decode_field('##'), '#')
self.assertEqual(_decode_field('#$'), '$')
self.assertEqual(_decode_field('$#'), '#')
self.assertEqual(_decode_field('$$'), '$')
def test_unicode_escape(self):
self.assertEqual(_decode_field(r'\u2603'), '\N{SNOWMAN}')
class ReplaceUrlHostTestCase(unittest.TestCase):
def repl(self, old, new, repl=None):
self.assertEqual(new, _replace_url_host(old, repl))
def test_replace_url_host(self):
self.repl('http://google.com/', 'http://google.com/')
self.repl('http://google.com/', 'http://go-ogle.com/', 'go-ogle.com')
self.repl('ftp://fish:9188/', 'ftp://localhost/', 'localhost')
class LsClientTestCase(unittest.TestCase):
def test_is_transient_error(self):
import socket
import urllib.request, urllib.error, urllib.parse
is_transient_error = LsClient('', None)._is_transient_error
assert is_transient_error(socket.error())
assert is_transient_error(urllib.error.URLError(socket.error()))
assert is_transient_error(TransientError('eek'))
assert not is_transient_error(urllib.error.URLError('apocalypse'))
if __name__ == '__main__':
unittest.main()