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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/>. 

# 

 

from __future__ import print_function 

from builtins import str 

import lsst.daf.persistence as dafPersist 

import lsst.utils.tests 

import astropy.io.fits 

import unittest 

import os 

 

# Define the root of the tests relative to this file 

ROOT = os.path.abspath(os.path.dirname(__file__)) 

 

 

class MinMapper(dafPersist.Mapper): 

 

def map_raw(self, dataId, write): 

python = 'astropy.io.fits.HDUList' 

persistable = None 

storage = 'FitsStorage' 

path = 'butlerAlias/data/input/raw/raw_v' + \ 

str(dataId['visit']) + '_f' + dataId['filter'] + '.fits.gz' 

return dafPersist.ButlerLocation(python, persistable, storage, path, 

dataId, self, dafPersist.Storage.makeFromURI(ROOT)) 

 

def bypass_raw(self, datasetType, pythonType, location, dataId): 

return astropy.io.fits.open(location.getLocationsWithRoot()[0]) 

 

def query_raw(self, format, dataId): 

values = [{'visit': 1, 'filter': 'g'}, {'visit': 2, 'filter': 'g'}, {'visit': 3, 'filter': 'r'}] 

matches = [] 

for value in values: 

match = True 

54 ↛ 55line 54 didn't jump to line 55, because the loop on line 54 never started for item in dataId: 

if value[item] != dataId[item]: 

match = False 

break 

58 ↛ 52line 58 didn't jump to line 52, because the condition on line 58 was never false if match: 

matches.append(value) 

results = set() 

for match in matches: 

tempTup = [] 

for word in format: 

tempTup.append(match[word]) 

results.add(tuple(tempTup)) 

return results 

 

def getDefaultLevel(self): 

return 'visit' 

 

def getKeys(self, datasetType, level): 

return {'filter': str, 'visit': int} 

 

 

class ButlerTestCase(unittest.TestCase): 

"""A test case for the basic butler api""" 

 

datasetType = '@foo' 

 

def setUp(self): 

self.butler = dafPersist.Butler(os.path.join(ROOT, 'butlerAlias/data/input'), MinMapper) 

self.butler.defineAlias(self.datasetType, 'raw') 

 

def tearDown(self): 

del self.butler 

 

def testGet(self): 

raw_image = self.butler.get(self.datasetType, {'visit': '2', 'filter': 'g'}) 

# in this case the width is known to be 1026: 

self.assertEqual(raw_image[1].header["NAXIS1"], 1026) # raw_image is an lsst.afw.ExposureU 

 

def testSubset(self): 

subset = self.butler.subset(self.datasetType) 

self.assertEqual(len(subset), 3) 

 

def testGetKeys(self): 

keys = self.butler.getKeys(self.datasetType) 

self.assertIn('filter', keys) 

self.assertIn('visit', keys) 

self.assertEqual(keys['filter'], str) 

self.assertEqual(keys['visit'], int) 

 

def testQueryMetadata(self): 

keys = self.butler.getKeys(self.datasetType) 

expectedKeyValues = {'filter': ['g', 'r'], 'visit': [1, 2, 3]} 

for key in keys: 

val = self.butler.queryMetadata(self.datasetType, key) 

self.assertEqual(val.sort(), expectedKeyValues[key].sort()) 

 

def testDatasetExists(self): 

# test the valeus that are expected to be true: 

self.assertTrue(self.butler.datasetExists(self.datasetType, {'filter': 'g', 'visit': 1})) 

self.assertTrue(self.butler.datasetExists(self.datasetType, {'filter': 'g', 'visit': 2})) 

self.assertTrue(self.butler.datasetExists(self.datasetType, {'filter': 'r', 'visit': 3})) 

 

# test a few values that are expected to be false: 

self.assertFalse(self.butler.datasetExists(self.datasetType, {'filter': 'f', 'visit': 1})) 

self.assertFalse(self.butler.datasetExists(self.datasetType, {'filter': 'r', 'visit': 1})) 

self.assertFalse(self.butler.datasetExists(self.datasetType, {'filter': 'g', 'visit': 3})) 

 

def testDataRef(self): 

print(self.butler.dataRef(self.datasetType, dataId={'filter': 'g', 'visit': 1})) 

 

def testUnregisteredAlias(self): 

with self.assertRaises(RuntimeError): 

self.butler.getKeys('@bar') 

 

def testOverlappingAlias(self): 

self.butler = dafPersist.Butler(inputs=[], outputs=[]) 

 

self.butler.defineAlias('foo', 'raw') 

with self.assertRaises(RuntimeError): 

self.butler.defineAlias('foobar', 'calexp') 

self.butler.defineAlias('barbaz', 'qux') 

with self.assertRaises(RuntimeError): 

self.butler.defineAlias('bar', 'quux') 

 

def testBadlyFormattedAlias(self): 

with self.assertRaises(RuntimeError): 

self.butler.defineAlias('abc@xyz', 'calexp') 

 

 

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

pass 

 

 

def setup_module(module): 

lsst.utils.tests.init() 

 

 

151 ↛ 152line 151 didn't jump to line 152, because the condition on line 151 was never trueif __name__ == "__main__": 

lsst.utils.tests.init() 

unittest.main()