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# 

# LSST Data Management System 

# 

# Copyright 2018 AURA/LSST. 

# 

# 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 <https://www.lsstcorp.org/LegalNotices/>. 

# 

import os 

import unittest 

 

import lsst.utils.tests 

import lsst.afw.image as afwImage 

import lsst.afw.table as afwTable 

from lsst.meas.algorithms.detection import SourceDetectionTask 

from lsst.meas.deblender import SourceDeblendTask 

 

DATA_DIR = os.path.join(os.path.dirname(os.path.realpath(__file__)), "data") 

 

 

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

 

def setUp(self): 

self.calexp = afwImage.ExposureF(os.path.join(DATA_DIR, "ticket1738.fits")) 

 

def tearDown(self): 

del self.calexp 

 

def testMismatchedSchema(self): 

schema = afwTable.SourceTable.makeMinimalSchema() 

 

# Create the detection task and process the data 

detectionTask = SourceDetectionTask(schema=schema) 

table = afwTable.SourceTable.make(schema) 

result = detectionTask.run(table, self.calexp) 

self.assertEqual(schema, result.sources.getSchema()) 

 

# SourceDeblendTask modifies the schema in-place at construction 

# and add extra keys to it 

deblendTask = SourceDeblendTask(schema) 

self.assertNotEqual(schema, result.sources.getSchema()) 

 

# As the deblendTask has a different schema than the original schema 

# of the detectionTask, the assert should fail and stop running 

with self.assertRaises(AssertionError): 

deblendTask.run(self.calexp, result.sources) 

 

 

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

pass 

 

 

def setup_module(module): 

lsst.utils.tests.init() 

 

70 ↛ 71line 70 didn't jump to line 71, because the condition on line 70 was never trueif __name__ == "__main__": 

lsst.utils.tests.init() 

unittest.main()