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# 

# LSST Data Management System 

# Copyright 2015 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/>. 

# 

 

import os 

import unittest 

 

import lsst.daf.persistence as dafPersist 

import lsst.utils.tests 

 

 

class PolicyTestCase(unittest.TestCase): 

"""A test case for the butler policy""" 

 

def setUp(self): 

self.policy = dafPersist.Policy( 

{'body': {'job': {'position': 'Developer', 'company': 'Microsoft'}, 'name': 'John'}, 

'error': False}) 

 

def testBasic(self): 

p = dafPersist.Policy() 

p['a'] = {1: 2} 

self.assertEqual(p, {'a': {1: 2}}) 

p.update({'a': {3: 4}}) 

self.assertEqual(p, {'a': {1: 2, 3: 4}}) 

 

def testUpdateWithDict(self): 

self.policy.update({'body': {'job': {'position': 'Manager'}}}) 

self.assertEqual(self.policy['body'], 

{'job': {'position': 'Manager', 'company': 'Microsoft'}, 'name': 'John'}) 

self.policy.update({'body': {'name': {'first': 'John', 'last': 'Smith'}}}) 

self.assertEqual(self.policy['body'], 

{'job': {'position': 'Manager', 'company': 'Microsoft'}, 

'name': {'first': 'John', 'last': 'Smith'}}) 

 

def testUpdateWithPolicy(self): 

p1 = dafPersist.Policy({'body': {'job': {'position': 'Manager'}}}) 

self.policy.update(p1) 

self.assertEqual(self.policy['body'], 

{'job': {'position': 'Manager', 'company': 'Microsoft'}, 'name': 'John'}) 

 

def testGet(self): 

self.assertEqual(self.policy['body'], 

{'job': {'position': 'Developer', 'company': 'Microsoft'}, 'name': 'John'}) 

self.assertEqual(self.policy['body.job'], {'position': 'Developer', 'company': 'Microsoft'}) 

self.assertEqual(self.policy['body.job.position'], 'Developer') 

 

def testSet(self): 

# change an item 

self.policy['body.job.company'] = 'SLAC' 

self.assertEqual(self.policy['body'], 

{'job': {'position': 'Developer', 'company': 'SLAC'}, 'name': 'John'}) 

# add an item 

self.policy['body.job.salary'] = 100000 

self.assertEqual(self.policy['body'], 

{'job': {'position': 'Developer', 'company': 'SLAC', 'salary': 100000}, 

'name': 'John'}) 

 

def testNames(self): 

names = self.policy.names() 

names.sort() 

expectedNames = ['body', 'body.job', 'body.job.position', 'body.job.company', 'body.name', 'error'] 

expectedNames.sort() 

self.assertEqual(names, expectedNames) 

 

def testCopyPolicy(self): 

pol = dafPersist.Policy(self.policy) 

self.assertEqual(pol, self.policy) 

 

def testGetPolicy(self): 

policy = self.policy['body'] 

self.assertEqual(policy, {'job': {'position': 'Developer', 'company': 'Microsoft'}, 'name': 'John'}) 

self.assertEqual(policy['job.position'], 'Developer') # note: verifies dot naming 

self.assertIsInstance(policy, dafPersist.Policy) 

 

def testDotsInBraces(self): 

self.assertEqual(self.policy['body.job.company'], 'Microsoft') 

 

def testMerge(self): 

a = dafPersist.Policy() 

b = dafPersist.Policy() 

a['a.b.c'] = 1 

b['a.b.c'] = 2 

b['a.b.d'] = 3 

a.merge(b) 

self.assertEqual(a['a.b.c'], 1) 

self.assertEqual(a['a.b.d'], 3) 

 

# b should remain unchanged: 

self.assertEqual(b['a.b.c'], 2) 

self.assertEqual(b['a.b.d'], 3) 

 

def testOpenDefaultPolicy(self): 

policyFile = dafPersist.Policy.defaultPolicyFile('daf_persistence', 'testPolicy.yaml', 'tests') 

policy = dafPersist.Policy(policyFile) 

self.assertEqual(policy['exposures.raw.template'], 'foo/bar/baz.fits.gz') 

 

def testDumpLoad(self): 

self.policy.dumpToFile('testDumpFile.yaml') 

loadedPolicy = dafPersist.Policy('testDumpFile.yaml') 

self.assertEqual(self.policy, loadedPolicy) 

os.remove('testDumpFile.yaml') 

 

def testNonExistantPolicyAtPath(self): 

# Test that loading paf & yaml files that do not exist raises an IOError. 

with self.assertRaises(IOError): 

dafPersist.Policy("c:/nonExistantPath/policy.yaml") 

with self.assertRaises(IOError): 

dafPersist.Policy("c:/nonExistantPath/policy.paf") 

 

def testInvalidPolicyFileType(self): 

# We only support files with '.paf' or '.yaml' extension; check that trying to load a file with a 

# different extension (in this case '.txt') raises a RuntimeError. 

with self.assertRaises(RuntimeError): 

dafPersist.Policy("c:/policy.txt") 

 

 

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

pass 

 

 

def setup_module(module): 

lsst.utils.tests.init() 

 

 

144 ↛ 145line 144 didn't jump to line 145, because the condition on line 144 was never trueif __name__ == "__main__": 

lsst.utils.tests.init() 

unittest.main()