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2628c480c5
Prevent changes to files that weren't changed between releases. This eases review of the changes between releases significantly.
140 lines
5.9 KiB
Python
140 lines
5.9 KiB
Python
# -*- coding: utf-8 -*-
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"""
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***************************************************************************
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SagaAlgorithmsTests.py
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---------------------
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Date : September 2017
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Copyright : (C) 2017 by Alexander Bruy
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Email : alexander dot bruy at gmail dot com
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***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************
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"""
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__author__ = 'Alexander Bruy'
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__date__ = 'September 2017'
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__copyright__ = '(C) 2017, Alexander Bruy'
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import os
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import nose2
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import shutil
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import tempfile
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from qgis.core import (QgsProcessingParameterNumber,
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QgsProcessingParameterDefinition,
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QgsVectorLayer,
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QgsApplication,
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QgsFeature,
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QgsGeometry,
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QgsPointXY,
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QgsProcessingContext,
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QgsProject,
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QgsProcessingFeedback,
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QgsProcessingFeatureSourceDefinition)
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from qgis.testing import start_app, unittest
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from processing.algs.saga.SagaParameters import Parameters, SagaImageOutputParam
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import AlgorithmsTestBase
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class TestSagaAlgorithms(unittest.TestCase, AlgorithmsTestBase.AlgorithmsTest):
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@classmethod
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def setUpClass(cls):
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start_app()
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from processing.core.Processing import Processing
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Processing.initialize()
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cls.cleanup_paths = []
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cls.temp_dir = tempfile.mkdtemp()
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cls.cleanup_paths.append(cls.temp_dir)
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@classmethod
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def tearDownClass(cls):
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from processing.core.Processing import Processing
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Processing.deinitialize()
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for path in cls.cleanup_paths:
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shutil.rmtree(path)
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def test_definition_file(self):
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return 'saga_algorithm_tests.yaml'
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def test_is_parameter_line(self):
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# Test determining whether a line is a parameter line
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self.assertFalse(Parameters.is_parameter_line(''))
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self.assertFalse(Parameters.is_parameter_line('xxxxxxxxx'))
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self.assertTrue(Parameters.is_parameter_line('QgsProcessingParameterNumber|R_PERCTL_MIN|Percentiles Range for RED max|QgsProcessingParameterNumber.Integer|1|False|1|99'))
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self.assertTrue(Parameters.is_parameter_line('*QgsProcessingParameterNumber|R_PERCTL_MIN|Percentiles Range for RED max|QgsProcessingParameterNumber.Integer|1|False|1|99'))
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self.assertTrue(Parameters.is_parameter_line('SagaImageOutput|RGB|Output RGB'))
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def test_param_line(self):
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# Test creating a parameter from a description line
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param = Parameters.create_parameter_from_line('QgsProcessingParameterNumber|R_PERCTL_MIN|Percentiles Range for RED max|QgsProcessingParameterNumber.Integer|1|False|1|99')
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self.assertIsInstance(param, QgsProcessingParameterNumber)
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self.assertEqual(param.name(), 'R_PERCTL_MIN')
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self.assertEqual(param.description(), 'Percentiles Range for RED max')
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self.assertEqual(param.dataType(), QgsProcessingParameterNumber.Integer)
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self.assertFalse(param.flags() & QgsProcessingParameterDefinition.FlagOptional)
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self.assertEqual(param.minimum(), 1)
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self.assertEqual(param.maximum(), 99)
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# Test SagaImageOutputParam line
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param = Parameters.create_parameter_from_line('SagaImageOutput|RGB|Output RGB')
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self.assertIsInstance(param, SagaImageOutputParam)
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self.assertEqual(param.name(), 'RGB')
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self.assertEqual(param.description(), 'Output RGB')
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self.assertEqual(param.defaultFileExtension(), 'tif')
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self.assertEqual(param.supportedOutputRasterLayerExtensions(), ['tif'])
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def test_non_ascii_output(self):
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# create a memory layer and add to project and context
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layer = QgsVectorLayer("Point?crs=epsg:3857&field=fldtxt:string&field=fldint:integer",
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"testmem", "memory")
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self.assertTrue(layer.isValid())
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pr = layer.dataProvider()
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f = QgsFeature()
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f.setAttributes(["test", 123])
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f.setGeometry(QgsGeometry.fromPointXY(QgsPointXY(100, 200)))
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f2 = QgsFeature()
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f2.setAttributes(["test2", 457])
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f2.setGeometry(QgsGeometry.fromPointXY(QgsPointXY(110, 200)))
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self.assertTrue(pr.addFeatures([f, f2]))
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self.assertEqual(layer.featureCount(), 2)
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QgsProject.instance().addMapLayer(layer)
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context = QgsProcessingContext()
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context.setProject(QgsProject.instance())
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alg = QgsApplication.processingRegistry().createAlgorithmById('saga:fixeddistancebuffer')
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self.assertIsNotNone(alg)
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temp_file = os.path.join(self.temp_dir, 'non_ascii_ñññ.shp')
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parameters = {'SHAPES': 'testmem',
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'DIST_FIELD_DEFAULT': 5,
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'NZONES': 1,
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'DARC': 5,
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'DISSOLVE': False,
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'POLY_INNER': False,
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'BUFFER': temp_file}
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feedback = QgsProcessingFeedback()
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results, ok = alg.run(parameters, context, feedback)
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self.assertTrue(ok)
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self.assertTrue(os.path.exists(temp_file))
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# make sure that layer has correct features
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res = QgsVectorLayer(temp_file, 'res')
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self.assertTrue(res.isValid())
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self.assertEqual(res.featureCount(), 2)
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QgsProject.instance().removeMapLayer(layer)
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if __name__ == '__main__':
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nose2.main()
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