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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 

 

from lsst.pipe.base import (PipelineTask, PipelineTaskConfig, 

PipelineTaskConnections, Pipeline, 

pipeTools) 

import lsst.pipe.base.connectionTypes as cT 

import lsst.utils.tests 

 

 

class ExamplePipelineTaskConnections(PipelineTaskConnections, dimensions=["Visit", "Detector"]): 

input1 = cT.Input(name="", 

dimensions=["Visit", "Detector"], 

storageClass="example", 

doc="Input for this task") 

input2 = cT.Input(name="", 

dimensions=["Visit", "Detector"], 

storageClass="example", 

doc="Input for this task") 

output1 = cT.Output(name="", 

dimensions=["Visit", "Detector"], 

storageClass="example", 

doc="Output for this task") 

output2 = cT.Output(name="", 

dimensions=["Visit", "Detector"], 

storageClass="example", 

doc="Output for this task") 

 

def __init__(self, *, config=None): 

super().__init__(config=config) 

if not config.connections.input2: 

self.inputs.remove('input2') 

if not config.connections.output2: 

self.outputs.remove('output2') 

 

 

class ExamplePipelineTaskConfig(PipelineTaskConfig, pipelineConnections=ExamplePipelineTaskConnections): 

pass 

 

 

def _makeConfig(inputName, outputName, pipeline, label): 

"""Factory method for config instances 

 

inputName and outputName can be either string or tuple of strings 

with two items max. 

""" 

if isinstance(inputName, tuple): 

pipeline.addConfigOverride(label, "connections.input1", inputName[0]) 

pipeline.addConfigOverride(label, "connections.input2", inputName[1] if len(inputName) > 1 else "") 

else: 

pipeline.addConfigOverride(label, "connections.input1", inputName) 

 

if isinstance(outputName, tuple): 

pipeline.addConfigOverride(label, "connections.output1", outputName[0]) 

pipeline.addConfigOverride(label, "connections.output2", outputName[1] if len(outputName) > 1 else "") 

else: 

pipeline.addConfigOverride(label, "connections.output1", outputName) 

 

 

class ExamplePipelineTask(PipelineTask): 

ConfigClass = ExamplePipelineTaskConfig 

 

 

def _makePipeline(tasks): 

"""Generate Pipeline instance. 

 

Parameters 

---------- 

tasks : list of tuples 

Each tuple in the list has 3 or 4 items: 

- input DatasetType name(s), string or tuple of strings 

- output DatasetType name(s), string or tuple of strings 

- task label, string 

- optional task class object, can be None 

 

Returns 

------- 

Pipeline instance 

""" 

pipe = Pipeline("test pipeline") 

for task in tasks: 

inputs = task[0] 

outputs = task[1] 

label = task[2] 

klass = task[3] if len(task) > 3 else ExamplePipelineTask 

pipe.addTask(klass, label) 

_makeConfig(inputs, outputs, pipe, label) 

return list(pipe.toExpandedPipeline()) 

 

 

class PipelineToolsTestCase(unittest.TestCase): 

"""A test case for pipelineTools 

""" 

 

def setUp(self): 

pass 

 

def tearDown(self): 

pass 

 

def testIsOrdered(self): 

"""Tests for pipeTools.isPipelineOrdered method 

""" 

pipeline = _makePipeline([("A", "B", "task1"), 

("B", "C", "task2")]) 

self.assertTrue(pipeTools.isPipelineOrdered(pipeline)) 

 

pipeline = _makePipeline([("A", ("B", "C"), "task1"), 

("B", "D", "task2"), 

("C", "E", "task3"), 

(("D", "E"), "F", "task4")]) 

self.assertTrue(pipeTools.isPipelineOrdered(pipeline)) 

 

pipeline = _makePipeline([("A", ("B", "C"), "task1"), 

("C", "E", "task2"), 

("B", "D", "task3"), 

(("D", "E"), "F", "task4")]) 

self.assertTrue(pipeTools.isPipelineOrdered(pipeline)) 

 

def testIsOrderedExceptions(self): 

"""Tests for pipeTools.isPipelineOrdered method exceptions 

""" 

# two producers should throw ValueError 

with self.assertRaises(pipeTools.DuplicateOutputError): 

_makePipeline([("A", "B", "task1"), 

("B", "C", "task2"), 

("A", "C", "task3"), 

]) 

 

def testOrderPipeline(self): 

"""Tests for pipeTools.orderPipeline method 

""" 

pipeline = _makePipeline([("A", "B", "task1"), 

("B", "C", "task2")]) 

pipeline = pipeTools.orderPipeline(pipeline) 

self.assertEqual(len(pipeline), 2) 

self.assertEqual(pipeline[0].label, "task1") 

self.assertEqual(pipeline[1].label, "task2") 

 

pipeline = _makePipeline([("B", "C", "task2"), 

("A", "B", "task1")]) 

pipeline = pipeTools.orderPipeline(pipeline) 

self.assertEqual(len(pipeline), 2) 

self.assertEqual(pipeline[0].label, "task1") 

self.assertEqual(pipeline[1].label, "task2") 

 

pipeline = _makePipeline([("A", ("B", "C"), "task1"), 

("B", "D", "task2"), 

("C", "E", "task3"), 

(("D", "E"), "F", "task4")]) 

pipeline = pipeTools.orderPipeline(pipeline) 

self.assertEqual(len(pipeline), 4) 

self.assertEqual(pipeline[0].label, "task1") 

self.assertEqual(pipeline[1].label, "task2") 

self.assertEqual(pipeline[2].label, "task3") 

self.assertEqual(pipeline[3].label, "task4") 

 

pipeline = _makePipeline([("A", ("B", "C"), "task1"), 

("C", "E", "task3"), 

("B", "D", "task2"), 

(("D", "E"), "F", "task4")]) 

pipeline = pipeTools.orderPipeline(pipeline) 

self.assertEqual(len(pipeline), 4) 

self.assertEqual(pipeline[0].label, "task1") 

self.assertEqual(pipeline[1].label, "task3") 

self.assertEqual(pipeline[2].label, "task2") 

self.assertEqual(pipeline[3].label, "task4") 

 

pipeline = _makePipeline([(("D", "E"), "F", "task4"), 

("B", "D", "task2"), 

("C", "E", "task3"), 

("A", ("B", "C"), "task1")]) 

pipeline = pipeTools.orderPipeline(pipeline) 

self.assertEqual(len(pipeline), 4) 

self.assertEqual(pipeline[0].label, "task1") 

self.assertEqual(pipeline[1].label, "task2") 

self.assertEqual(pipeline[2].label, "task3") 

self.assertEqual(pipeline[3].label, "task4") 

 

pipeline = _makePipeline([(("D", "E"), "F", "task4"), 

("C", "E", "task3"), 

("B", "D", "task2"), 

("A", ("B", "C"), "task1")]) 

pipeline = pipeTools.orderPipeline(pipeline) 

self.assertEqual(len(pipeline), 4) 

self.assertEqual(pipeline[0].label, "task1") 

self.assertEqual(pipeline[1].label, "task3") 

self.assertEqual(pipeline[2].label, "task2") 

self.assertEqual(pipeline[3].label, "task4") 

 

def testOrderPipelineExceptions(self): 

"""Tests for pipeTools.orderPipeline method exceptions 

""" 

with self.assertRaises(pipeTools.DuplicateOutputError): 

_makePipeline([("A", "B", "task1"), 

("B", "C", "task2"), 

("A", "C", "task3"), 

]) 

 

# cycle in a graph should throw ValueError 

with self.assertRaises(pipeTools.PipelineDataCycleError): 

_makePipeline([("A", ("A", "B"), "task1")]) 

 

# another kind of cycle in a graph 

with self.assertRaises(pipeTools.PipelineDataCycleError): 

_makePipeline([("A", "B", "task1"), 

("B", "C", "task2"), 

("C", "D", "task3"), 

("D", "A", "task4")]) 

 

 

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

pass 

 

 

def setup_module(module): 

lsst.utils.tests.init() 

 

 

243 ↛ 244line 243 didn't jump to line 244, because the condition on line 243 was never trueif __name__ == "__main__": 

lsst.utils.tests.init() 

unittest.main()