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130 lines
5.4 KiB
Python
130 lines
5.4 KiB
Python
# -*- coding: utf-8 -*-
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"""
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***************************************************************************
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SagaTest.py
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---------------------
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Date : March 2013
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Copyright : (C) 2013 by Victor Olaya
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Email : volayaf 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__ = 'Victor Olaya'
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__date__ = 'March 2013'
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__copyright__ = '(C) 2013, Victor Olaya'
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# This will get replaced with a git SHA1 when you do a git archive
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__revision__ = '$Format:%H$'
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import processing
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import unittest
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from processing.tests.TestData import points, points2, polygons, polygons2, lines, union,\
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table, polygonsGeoJson, raster
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from processing.core.QGisLayers import QGisLayers
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from processing.core.ProcessingUtils import ProcessingUtils
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from osgeo.gdalconst import GA_ReadOnly
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import os
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from osgeo import gdal
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class SagaTest(unittest.TestCase):
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'''tests for saga algorithms'''
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def test_sagametricconversions(self):
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outputs=processing.runalg("saga:metricconversions",raster(),0,None)
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output=outputs['CONV']
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self.assertTrue(os.path.isfile(output))
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dataset=gdal.Open(output, GA_ReadOnly)
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strhash=hash(str(dataset.ReadAsArray(0).tolist()))
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self.assertEqual(strhash,-2137931723)
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def test_sagasortgrid(self):
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outputs=processing.runalg("saga:sortgrid",raster(),True,None)
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output=outputs['OUTPUT']
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self.assertTrue(os.path.isfile(output))
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dataset=gdal.Open(output, GA_ReadOnly)
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strhash=hash(str(dataset.ReadAsArray(0).tolist()))
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self.assertEqual(strhash,1320073153)
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'''the following tests are not meant to test the algorithms themselves,
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but the algorithm provider, testing things such as the file conversion,
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the selection awareness of SAGA process, etc'''
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def test_SagaVectorAlgorithmWithSelection(self):
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layer = processing.getobject(polygons2());
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feature = layer.getFeatures().next()
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selected = [feature.id()]
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layer.setSelectedFeatures(selected)
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outputs=processing.runalg("saga:polygoncentroids",polygons2(),True,None)
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layer.setSelectedFeatures([])
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output=outputs['CENTROIDS']
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layer=QGisLayers.getObjectFromUri(output, True)
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fields=layer.pendingFields()
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expectednames=['ID','POLY_NUM_B','POLY_ST_B']
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expectedtypes=['Real','Real','String']
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names=[str(f.name()) for f in fields]
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types=[str(f.typeName()) for f in fields]
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self.assertEqual(expectednames, names)
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self.assertEqual(expectedtypes, types)
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features=processing.getfeatures(layer)
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self.assertEqual(1, len(features))
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feature=features.next()
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attrs=feature.attributes()
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expectedvalues=["2","1","string a"]
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values=[str(attr) for attr in attrs]
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self.assertEqual(expectedvalues, values)
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wkt='POINT(270806.69221918 4458924.97720492)'
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self.assertEqual(wkt, str(feature.geometry().exportToWkt()))
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def test_SagaVectorAlgorithWithUnsupportedInputAndOutputFormat(self):
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'''this tests both the exporting to shp and then the format change in the output layer'''
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layer = processing.getobject(polygonsGeoJson());
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feature = layer.getFeatures().next()
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selected = [feature.id()]
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layer.setSelectedFeatures(selected)
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outputs=processing.runalg("saga:polygoncentroids",polygonsGeoJson(),True, ProcessingUtils.getTempFilename("geojson"))
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layer.setSelectedFeatures([])
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output=outputs['CENTROIDS']
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layer=QGisLayers.getObjectFromUri(output, True)
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fields=layer.pendingFields()
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expectednames=['ID','POLY_NUM_A','POLY_ST_A']
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expectedtypes=['Real','Real','String']
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names=[str(f.name()) for f in fields]
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types=[str(f.typeName()) for f in fields]
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self.assertEqual(expectednames, names)
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self.assertEqual(expectedtypes, types)
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features=processing.getfeatures(layer)
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self.assertEqual(1, len(features))
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feature=features.next()
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attrs=feature.attributes()
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expectedvalues=["0","1.1","string a"]
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values=[str(attr) for attr in attrs]
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self.assertEqual(expectedvalues, values)
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wkt='POINT(270787.49991451 4458955.46775295)'
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self.assertEqual(wkt, str(feature.geometry().exportToWkt()))
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def test_SagaRasterAlgorithmWithUnsupportedOutputFormat(self):
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outputs=processing.runalg("saga:convergenceindex",raster(),0,0,ProcessingUtils.getTempFilename("img"))
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output=outputs['RESULT']
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self.assertTrue(os.path.isfile(output))
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dataset=gdal.Open(output, GA_ReadOnly)
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strhash=hash(str(dataset.ReadAsArray(0).tolist()))
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self.assertEqual(strhash, 485390137)
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def suite():
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suite = unittest.makeSuite(SagaTest, 'test')
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return suite
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def runtests():
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result = unittest.TestResult()
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testsuite = suite()
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testsuite.run(result)
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return result
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