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# This file is part of verify. 

# 

# Developed for the LSST Data Management System. 

# This product includes software developed by the LSST Project 

# (https://www.lsst.org). 

# See the COPYRIGHT file at the top-level directory of this distribution 

# for details of code ownership. 

# 

# 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 GNU General Public License 

# along with this program. If not, see <https://www.gnu.org/licenses/>. 

 

__all__ = ["MetadataMetricTestCase", "ApdbMetricTestCase"] 

 

import unittest.mock 

from unittest.mock import patch 

 

from lsst.daf.base import PropertySet 

from lsst.dax.apdb import ApdbConfig 

 

from lsst.verify.gen2tasks.testUtils import MetricTaskTestCase 

from lsst.verify.tasks import MetricComputationError 

 

 

class MetadataMetricTestCase(MetricTaskTestCase): 

"""Unit test base class for tests of `MetadataMetricTask`. 

 

Notes 

----- 

Subclasses must override 

`~lsst.verify.gen2tasks.MetricTaskTestCase.makeTask` for the concrete task 

being tested. 

""" 

 

@staticmethod 

def _takesScalarMetadata(task): 

return task.areInputDatasetsScalar(task.config)['metadata'] 

 

def testValidRun(self): 

"""Test how run delegates to the abstract methods. 

""" 

mockKey = "unitTestKey" 

with patch.object(self.task, "getInputMetadataKeys", 

return_value={"unused": mockKey}), \ 

patch.object(self.task, "makeMeasurement") as mockWorkhorse: 

if self._takesScalarMetadata(self.task): 

metadata1 = PropertySet() 

metadata1[mockKey] = 42 

 

self.task.run(metadata1) 

mockWorkhorse.assert_called_once_with({"unused": 42}) 

mockWorkhorse.reset_mock() 

self.task.run(None) 

mockWorkhorse.assert_called_once_with({"unused": None}) 

else: 

metadata1 = PropertySet() 

metadata1[mockKey] = 42 

metadata2 = PropertySet() 

metadata2[mockKey] = "Sphere" 

self.task.run([metadata1, None, metadata2]) 

mockWorkhorse.assert_called_once_with( 

[{"unused": value} for value in [42, None, "Sphere"]]) 

 

def testAmbiguousRun(self): 

mockKey = "unitTestKey" 

with patch.object(self.task, "getInputMetadataKeys", 

return_value={"unused": mockKey}): 

metadata = PropertySet() 

metadata[mockKey + "1"] = 42 

metadata[mockKey + "2"] = "Sphere" 

with self.assertRaises(MetricComputationError): 

if self._takesScalarMetadata(self.task): 

self.task.run(metadata) 

else: 

self.task.run([metadata]) 

 

def testPassThroughRun(self): 

with patch.object(self.task, "makeMeasurement", 

side_effect=MetricComputationError): 

with self.assertRaises(MetricComputationError): 

if self._takesScalarMetadata(self.task): 

self.task.run(None) 

else: 

self.task.run([None]) 

 

 

class ApdbMetricTestCase(MetricTaskTestCase): 

"""Unit test base class for tests of `ApdbMetricTask`. 

 

Notes 

----- 

Subclasses must override 

`~lsst.verify.gen2tasks.MetricTaskTestCase.makeTask` for the concrete task 

being tested. Subclasses that use a custom DbLoader should also 

override `makeDbInfo`. 

""" 

 

@classmethod 

def makeDbInfo(cls): 

"""Return an object that can be passed as input to an `ApdbMetricTask`. 

 

This method is intended for generic tests that simply need to call 

``run`` on some valid input. If a test depends on specific input, it 

should create that input directly. 

 

The default implementation creates a `~lsst.pex.config.Config` that 

will be accepted by `~lsst.verify.tasks.DirectApdbLoader`. Test suites 

that use a different loader should override this method. 

""" 

return ApdbConfig() 

 

def testValidRun(self): 

info = self.makeDbInfo() 

with patch.object(self.task, "makeMeasurement") as mockWorkhorse: 

self.task.run([info]) 

mockWorkhorse.assert_called_once() 

 

def testDataIdRun(self): 

info = self.makeDbInfo() 

with patch.object(self.task, "makeMeasurement") as mockWorkhorse: 

dataId = {'visit': 42} 

self.task.run([info], outputDataId=dataId) 

mockWorkhorse.assert_called_once_with( 

unittest.mock.ANY, {'visit': 42}) 

 

def testPassThroughRun(self): 

with patch.object(self.task, "makeMeasurement", 

side_effect=MetricComputationError): 

info = self.makeDbInfo() 

with self.assertRaises(MetricComputationError): 

self.task.run([info])