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# -*- coding: utf-8 -*-
"""
***************************************************************************
GdalTest.py
---------------------
Date : April 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__ = 'April 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 GdalTest(unittest.TestCase):
def test_gdalogrsieve(self):
outputs = processing.runalg('gdalogr:sieve', raster(), 2, 0, None)
output = outputs['dst_filename']
self.assertTrue(os.path.isfile(output))
dataset = gdal.Open(output, GA_ReadOnly)
strhash = hash(str(dataset.ReadAsArray(0).tolist()))
self.assertEqual(strhash, -1353696889)
def test_gdalogrsieveWithUnsupportedOutputFormat(self):
outputs = processing.runalg('gdalogr:sieve', raster(), 2, 0,
getTempFilename('img'))
output = outputs['dst_filename']
self.assertTrue(os.path.isfile(output))
dataset = gdal.Open(output, GA_ReadOnly)
strhash = hash(str(dataset.ReadAsArray(0).tolist()))
self.assertEqual(strhash, -1353696889)
def test_gdalogrwarpreproject(self):
outputs = processing.runalg(
'gdalogr:warpreproject',
raster(),
'EPSG:23030',
'EPSG:4326',
0,
0,
'',
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, -2021328784)
def test_gdalogrmerge(self):
outputs = processing.runalg('gdalogr:merge', raster(), False, False,
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, -1353696889)
def test_gdalogrogr2ogr(self):
outputs = processing.runalg('gdalogr:ogr2ogr', union(), 3, '', None)
output = outputs['OUTPUT_LAYER']
layer = dataobjects.getObjectFromUri(output, True)
fields = layer.pendingFields()
expectednames = [
'id',
'poly_num_a',
'poly_st_a',
'id_2',
'poly_num_b',
'poly_st_b',
]
expectedtypes = [
'Integer',
'Real',
'String',
'Integer',
'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(8, len(features))
feature = features.next()
attrs = feature.attributes()
expectedvalues = [
'1',
'1.1',
'string a',
'2',
'1',
'string a',
]
values = [str(attr) for attr in attrs]
self.assertEqual(expectedvalues, values)
wkt = 'POLYGON((270807.08580285 4458940.1594565,270798.42294527 4458914.62661676,270780.81854858 4458914.21983449,270763.52289518 4458920.715993,270760.3449542 4458926.6570575,270763.78234766 4458958.22561242,270794.30290024 4458942.16424502,270807.08580285 4458940.1594565))'
self.assertEqual(wkt, str(feature.geometry().exportToWkt()))
def test_gdalogrogr2ogrWrongExtension(self):
outputs = processing.runalg('gdalogr:ogr2ogr', union(), 3, '',
getTempFilename('wrongext'))
output = outputs['OUTPUT_LAYER']
layer = dataobjects.getObjectFromUri(output, True)
fields = layer.pendingFields()
expectednames = [
'id',
'poly_num_a',
'poly_st_a',
'id_2',
'poly_num_b',
'poly_st_b',
]
expectedtypes = [
'Integer',
'Real',
'String',
'Integer',
'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(8, len(features))
feature = features.next()
attrs = feature.attributes()
expectedvalues = [
'1',
'1.1',
'string a',
'2',
'1',
'string a',
]
values = [str(attr) for attr in attrs]
self.assertEqual(expectedvalues, values)
wkt = 'POLYGON((270807.08580285 4458940.1594565,270798.42294527 4458914.62661676,270780.81854858 4458914.21983449,270763.52289518 4458920.715993,270760.3449542 4458926.6570575,270763.78234766 4458958.22561242,270794.30290024 4458942.16424502,270807.08580285 4458940.1594565))'
self.assertEqual(wkt, str(feature.geometry().exportToWkt()))
def suite():
suite = unittest.makeSuite(GdalTest, 'test')
return suite
def runtests():
result = unittest.TestResult()
testsuite = suite()
testsuite.run(result)
return result
|
