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# This file is part of pipe_base. 

# 

# Developed for the LSST Data Management System. 

# This product includes software developed by the LSST Project 

# (http://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 <http://www.gnu.org/licenses/>. 

 

"""Simple unit test for Pipeline. 

""" 

 

import unittest 

 

import lsst.pex.config as pexConfig 

from lsst.pipe.base import (Struct, PipelineTask, PipelineTaskConfig, Pipeline, TaskDef, 

PipelineTaskConnections) 

import lsst.utils.tests 

 

 

class DummyConnections(PipelineTaskConnections, dimensions=()): 

pass 

 

 

class AddConfig(PipelineTaskConfig, pipelineConnections=DummyConnections): 

addend = pexConfig.Field(doc="amount to add", dtype=float, default=3.1) 

 

 

class AddTask(PipelineTask): 

ConfigClass = AddConfig 

 

def run(self, val): 

self.metadata.add("add", self.config.addend) 

return Struct( 

val=val + self.config.addend, 

) 

 

 

class MultConfig(PipelineTaskConfig, pipelineConnections=DummyConnections): 

multiplicand = pexConfig.Field(doc="amount by which to multiply", dtype=float, default=2.5) 

 

 

class MultTask(PipelineTask): 

ConfigClass = MultConfig 

 

def run(self, val): 

self.metadata.add("mult", self.config.multiplicand) 

return Struct( 

val=val * self.config.multiplicand, 

) 

 

 

class TaskTestCase(unittest.TestCase): 

"""A test case for Task 

""" 

 

def setUp(self): 

pass 

 

def tearDown(self): 

pass 

 

def testTaskDef(self): 

"""Tests for TaskDef structure 

""" 

task1 = TaskDef("lsst.pipe.base.tests.Add", AddConfig()) 

self.assertEqual(task1.taskName, "lsst.pipe.base.tests.Add") 

self.assertIsInstance(task1.config, AddConfig) 

self.assertIsNone(task1.taskClass) 

self.assertEqual(task1.label, "") 

 

task2 = TaskDef("lsst.pipe.base.tests.Mult", MultConfig(), MultTask, "mult_task") 

self.assertEqual(task2.taskName, "lsst.pipe.base.tests.Mult") 

self.assertIsInstance(task2.config, MultConfig) 

self.assertIs(task2.taskClass, MultTask) 

self.assertEqual(task2.label, "mult_task") 

 

def testEmpty(self): 

"""Creating empty pipeline 

""" 

pipeline = Pipeline("test") 

self.assertEqual(len(pipeline), 0) 

 

def testInitial(self): 

"""Testing constructor with initial data 

""" 

pipeline = Pipeline("test") 

pipeline.addTask(AddTask, "add") 

pipeline.addTask(MultTask, "mult") 

self.assertEqual(len(pipeline), 2) 

expandedPipeline = list(pipeline.toExpandedPipeline()) 

self.assertEqual(expandedPipeline[0].taskName, "AddTask") 

self.assertEqual(expandedPipeline[1].taskName, "MultTask") 

 

def testSerialization(self): 

pipeline = Pipeline("test") 

pipeline.addTask(AddTask, "add") 

pipeline.addTask(MultTask, "mult") 

dump = str(pipeline) 

load = Pipeline.fromString(dump) 

self.assertEqual(pipeline, load) 

 

 

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

pass 

 

 

def setup_module(module): 

lsst.utils.tests.init() 

 

 

124 ↛ 125line 124 didn't jump to line 125, because the condition on line 124 was never trueif __name__ == "__main__": 

lsst.utils.tests.init() 

unittest.main()