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# 

# LSST Data Management System 

# Copyright 2008, 2009, 2010 LSST Corporation. 

# 

# This product includes software developed by the 

# LSST Project (http://www.lsst.org/). 

# 

# This program is free software: you can redistribute it and/or modify 

# it under the terms of the GNU General Public License as published by 

# the Free Software Foundation, either version 3 of the License, or 

# (at your option) any later version. 

# 

# This program is distributed in the hope that it will be useful, 

# but WITHOUT ANY WARRANTY; without even the implied warranty of 

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 

# GNU General Public License for more details. 

# 

# You should have received a copy of the LSST License Statement and 

# the GNU General Public License along with this program. If not, 

# see <http://www.lsstcorp.org/LegalNotices/>. 

# 

 

""" 

Tests of the SharedData class 

""" 

from __future__ import with_statement 

from builtins import str 

 

import unittest 

import threading 

import lsst.utils.tests 

from lsst.ctrl.orca.multithreading import SharedData 

 

 

def setup_module(module): 

lsst.utils.tests.init() 

 

 

class ShareDataTestCase(lsst.utils.tests.TestCase): 

 

def setUp(self): 

self.sd = SharedData.SharedData() 

 

def tearDown(self): 

pass 

 

def testCtor(self): 

pass 

 

def testAcquire(self): 

self.assertFalse(self.sd._is_owned(), "lock without acquire") 

self.sd.acquire() 

self.assertTrue(self.sd._is_owned(), "lock not acquired") 

self.sd.acquire() 

self.assertTrue(self.sd._is_owned(), "lock not kept") 

self.sd.release() 

self.assertTrue(self.sd._is_owned(), "lock not kept after partial release") 

self.sd.release() 

self.assertFalse(self.sd._is_owned(), "lock not released") 

 

def testNoData(self): 

attrs = self.sd.dir() 

self.assertEqual(len(attrs), 0, "Non-empty protected dir: " + str(attrs)) 

self.sd.acquire() 

self.assertTrue(self.sd.__, "__ not set") 

self.sd.release() 

 

def testWith(self): 

with self.sd: 

self.assertTrue(self.sd._is_owned(), "lock not acquired") 

self.assertFalse(self.sd._is_owned(), "lock not released") 

 

def _initData(self): 

self.sd.initData({"name": "Ray", "test": True, "config": {}}) 

 

def testNoLockRead(self): 

self._initData() 

with self.assertRaises(AttributeError): 

self.sd.name 

self.sd.dir() 

 

def testInit(self): 

self._initData() 

attrs = self.sd.dir() 

self.assertEqual(len(attrs), 3, "Wrong number of items: "+str(attrs)) 

for key in "name test config".split(): 

self.assertIn(key, attrs, "Missing attr: " + key) 

 

def testAccess(self): 

self._initData() 

protected = None 

with self.sd: 

self.assertEqual(self.sd.name, "Ray") 

self.assertIsInstance(self.sd.test, bool) 

self.assertTrue(self.sd.test) 

protected = self.sd.config 

self.assertIsInstance(protected, dict) 

self.assertEqual(len(protected), 0) 

 

# test unsafe access 

protected["goob"] = "gurn" 

with self.sd: 

self.assertEqual(self.sd.config["goob"], "gurn") 

 

def testUpdate(self): 

self._initData() 

with self.sd: 

self.sd.name = "Plante" 

self.assertEqual(self.sd.name, "Plante") 

attrs = self.sd.dir() 

self.assertEqual(len(attrs), 3, "Wrong number of items: "+str(attrs)) 

 

def testAdd(self): 

self._initData() 

with self.sd: 

self.sd.lname = "Plante" 

attrs = self.sd.dir() 

self.assertEqual(len(attrs), 4, "Wrong number of items: "+str(attrs)) 

self.assertEqual(self.sd.lname, "Plante") 

 

 

class ReadableShareDataTestCase(lsst.utils.tests.TestCase): 

 

def setUp(self): 

self.sd = SharedData.SharedData(False) 

 

def tearDown(self): 

pass 

 

def testAcquire(self): 

self.assertFalse(self.sd._is_owned(), "lock without acquire") 

self.sd.acquire() 

self.assertTrue(self.sd._is_owned(), "lock not acquired") 

self.sd.acquire() 

self.assertTrue(self.sd._is_owned(), "lock not kept") 

self.sd.release() 

self.assertTrue(self.sd._is_owned(), "lock not kept after partial release") 

self.sd.release() 

self.assertFalse(self.sd._is_owned(), "lock not released") 

 

def testNoData(self): 

attrs = self.sd.dir() 

self.assertEqual(len(attrs), 0, "Non-empty protected dir: " + str(attrs)) 

self.assertTrue(self.sd.__, "__ not set") 

 

def _initData(self): 

self.sd.initData({"name": "Ray", "test": True, "config": {}}) 

 

def testNoLockRead(self): 

self._initData() 

self.sd.name 

self.sd.dir() 

with self.assertRaises(AttributeError): 

self.sd.goob 

 

def testInit(self): 

self._initData() 

attrs = self.sd.dir() 

self.assertEqual(len(attrs), 3, "Wrong number of items: "+str(attrs)) 

for key in "name test config".split(): 

self.assertIn(key, attrs, "Missing attr: " + key) 

 

def testAccess(self): 

self._initData() 

protected = None 

 

self.assertEqual(self.sd.name, "Ray") 

self.assertIsInstance(self.sd.test, bool) 

self.assertTrue(self.sd.test) 

protected = self.sd.config 

self.assertIsInstance(protected, dict) 

self.assertEqual(len(protected), 0) 

 

# test unsafe access 

protected["goob"] = "gurn" 

self.assertEqual(self.sd.config["goob"], "gurn") 

 

def testUpdate(self): 

self._initData() 

with self.sd: 

self.sd.name = "Plante" 

self.assertEqual(self.sd.name, "Plante") 

attrs = self.sd.dir() 

self.assertEqual(len(attrs), 3, "Wrong number of items: "+str(attrs)) 

 

def testAdd(self): 

self._initData() 

with self.sd: 

self.sd.lname = "Plante" 

attrs = self.sd.dir() 

self.assertEqual(len(attrs), 4, "Wrong number of items: "+str(attrs)) 

self.assertEqual(self.sd.lname, "Plante") 

 

 

class MultiThreadTestCase(lsst.utils.tests.TestCase): 

 

def setUp(self): 

self.sd = SharedData.SharedData(False, {"c": 0}) 

 

def tearDown(self): 

pass 

 

def testThreads(self): 

t = TstThread(self.sd) 

# pdb.set_trace() 

self.assertEqual(self.sd.c, 0) 

# print "c = ", self.sd.c 

 

with self.sd: 

t.start() 

 

# now take a turn 

self.sd.wait() 

# print "c = ", self.sd.c 

self.assertEqual(self.sd.c, 1) 

# print "WILL NOTIFY" 

self.sd.notifyAll() 

 

# time.sleep(1.01) 

with self.sd: 

# print "WILL WAIT" 

self.sd.wait(2.0) 

self.assertEqual(self.sd.c, 0) 

 

 

class TstThread(threading.Thread): 

 

def __init__(self, data): 

threading.Thread.__init__(self) 

self.data = data 

 

def run(self): 

with self.data: 

# pdb.set_trace() 

self.data.c += 1 

# print "++c = ", self.data.c 

 

self.data.notifyAll() 

# print "waiting", self.data.c 

self.data.wait() 

 

self.data.c -= 1 

# print "--c = ", self.data.c 

self.data.notifyAll() 

 

 

__all__ = "SharedDataTestCase ReadableShareDataTestCase MultiThreadTestCase".split() 

 

 

class SharedDataMemoryTester(lsst.utils.tests.MemoryTestCase): 

pass 

 

 

254 ↛ 255line 254 didn't jump to line 255, because the condition on line 254 was never trueif __name__ == "__main__": 

lsst.utils.tests.init() 

unittest.main()