mirror of
https://github.com/qgis/QGIS.git
synced 2025-02-24 00:47:57 -05:00
140 lines
5.5 KiB
Python
140 lines
5.5 KiB
Python
# -*- coding: utf-8 -*-
|
|
|
|
"""
|
|
***************************************************************************
|
|
SagaTest.py
|
|
---------------------
|
|
Date : March 2013
|
|
Copyright : (C) 2013 by Victor Olaya
|
|
Email : volayaf at gmail dot com
|
|
***************************************************************************
|
|
* *
|
|
* 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 2 of the License, or *
|
|
* (at your option) any later version. *
|
|
* *
|
|
***************************************************************************
|
|
"""
|
|
|
|
__author__ = 'Victor Olaya'
|
|
__date__ = 'March 2013'
|
|
__copyright__ = '(C) 2013, Victor Olaya'
|
|
|
|
# This will get replaced with a git SHA1 when you do a git archive
|
|
|
|
__revision__ = '$Format:%H$'
|
|
|
|
import os
|
|
import unittest
|
|
from osgeo import gdal
|
|
from osgeo.gdalconst import GA_ReadOnly
|
|
|
|
import processing
|
|
from processing.tools import dataobjects
|
|
from processing.tools.system import *
|
|
|
|
from processing.tests.TestData import points, points2, polygons, polygons2, \
|
|
lines, union, table, polygonsGeoJson, raster
|
|
|
|
|
|
class SagaTest(unittest.TestCase):
|
|
"""Tests for saga algorithms"""
|
|
|
|
def test_sagametricconversions(self):
|
|
outputs = processing.runalg('saga:metricconversions', raster(), 0,
|
|
None)
|
|
output = outputs['CONV']
|
|
self.assertTrue(os.path.isfile(output))
|
|
dataset = gdal.Open(output, GA_ReadOnly)
|
|
strhash = hash(str(dataset.ReadAsArray(0).tolist()))
|
|
self.assertEqual(strhash, -2137931723)
|
|
|
|
def test_sagasortgrid(self):
|
|
outputs = processing.runalg('saga:sortgrid', raster(), True, None)
|
|
output = outputs['OUTPUT']
|
|
self.assertTrue(os.path.isfile(output))
|
|
dataset = gdal.Open(output, GA_ReadOnly)
|
|
strhash = hash(str(dataset.ReadAsArray(0).tolist()))
|
|
self.assertEqual(strhash, 1320073153)
|
|
|
|
def test_SagaVectorAlgorithmWithSelection(self):
|
|
layer = processing.getObject(polygons2())
|
|
feature = layer.getFeatures().next()
|
|
selected = [feature.id()]
|
|
layer.setSelectedFeatures(selected)
|
|
outputs = processing.runalg('saga:polygoncentroids', polygons2(),
|
|
True, None)
|
|
layer.setSelectedFeatures([])
|
|
output = outputs['CENTROIDS']
|
|
layer = dataobjects.getObjectFromUri(output, True)
|
|
fields = layer.pendingFields()
|
|
expectednames = ['ID', 'POLY_NUM_B', 'POLY_ST_B']
|
|
expectedtypes = ['Real', 'Real', 'String']
|
|
names = [str(f.name()) for f in fields]
|
|
types = [str(f.typeName()) for f in fields]
|
|
self.assertEqual(expectednames, names)
|
|
self.assertEqual(expectedtypes, types)
|
|
features = processing.features(layer)
|
|
self.assertEqual(1, len(features))
|
|
feature = features.next()
|
|
attrs = feature.attributes()
|
|
expectedvalues = ['2', '1', 'string a']
|
|
values = [str(attr) for attr in attrs]
|
|
self.assertEqual(expectedvalues, values)
|
|
wkt = 'POINT(270806.69221918 4458924.97720492)'
|
|
self.assertEqual(wkt, str(feature.geometry().exportToWkt()))
|
|
|
|
def test_SagaVectorAlgorithWithUnsupportedInputAndOutputFormat(self):
|
|
"""This tests both the exporting to shp and then the format
|
|
change in the output layer.
|
|
"""
|
|
|
|
layer = processing.getObject(polygonsGeoJson())
|
|
feature = layer.getFeatures().next()
|
|
selected = [feature.id()]
|
|
layer.setSelectedFeatures(selected)
|
|
outputs = processing.runalg('saga:polygoncentroids',
|
|
polygonsGeoJson(), True,
|
|
getTempFilename('geojson'))
|
|
layer.setSelectedFeatures([])
|
|
output = outputs['CENTROIDS']
|
|
layer = dataobjects.getObjectFromUri(output, True)
|
|
fields = layer.pendingFields()
|
|
expectednames = ['ID', 'POLY_NUM_A', 'POLY_ST_A']
|
|
expectedtypes = ['Real', 'Real', 'String']
|
|
names = [str(f.name()) for f in fields]
|
|
types = [str(f.typeName()) for f in fields]
|
|
self.assertEqual(expectednames, names)
|
|
self.assertEqual(expectedtypes, types)
|
|
features = processing.features(layer)
|
|
self.assertEqual(1, len(features))
|
|
feature = features.next()
|
|
attrs = feature.attributes()
|
|
expectedvalues = ['0', '1.1', 'string a']
|
|
values = [str(attr) for attr in attrs]
|
|
self.assertEqual(expectedvalues, values)
|
|
wkt = 'POINT(270787.49991451 4458955.46775295)'
|
|
self.assertEqual(wkt, str(feature.geometry().exportToWkt()))
|
|
|
|
def test_SagaRasterAlgorithmWithUnsupportedOutputFormat(self):
|
|
outputs = processing.runalg('saga:convergenceindex', raster(), 0, 0,
|
|
getTempFilename('img'))
|
|
output = outputs['RESULT']
|
|
self.assertTrue(os.path.isfile(output))
|
|
dataset = gdal.Open(output, GA_ReadOnly)
|
|
strhash = hash(str(dataset.ReadAsArray(0).tolist()))
|
|
self.assertEqual(strhash, 485390137)
|
|
|
|
|
|
def suite():
|
|
suite = unittest.makeSuite(SagaTest, 'test')
|
|
return suite
|
|
|
|
|
|
def runtests():
|
|
result = unittest.TestResult()
|
|
testsuite = suite()
|
|
testsuite.run(result)
|
|
return result
|