def testRun(self):
context = QgsProcessingContext()
# try running an alg using processing.run - ownership of result layer should be transferred back to the caller
res = processing.run('qgis:buffer',
{'DISTANCE': 1, 'INPUT': points(), 'OUTPUT': QgsProcessing.TEMPORARY_OUTPUT},
context=context)
self.assertIn('OUTPUT', res)
# output should be the layer instance itself
self.assertIsInstance(res['OUTPUT'], QgsVectorLayer)
# Python should have ownership
self.assertTrue(sip.ispyowned(res['OUTPUT']))
del context
gc.collect()
self.assertFalse(sip.isdeleted(res['OUTPUT']))
# now try using processing.run with is_child_algorithm = True. Ownership should remain with the context
context = QgsProcessingContext()
res = processing.run('qgis:buffer',
{'DISTANCE': 1, 'INPUT': points(), 'OUTPUT': QgsProcessing.TEMPORARY_OUTPUT},
context=context, is_child_algorithm=True)
self.assertIn('OUTPUT', res)
# output should be a layer string reference, NOT the layer itself
self.assertIsInstance(res['OUTPUT'], str)
layer = context.temporaryLayerStore().mapLayer(res['OUTPUT'])
self.assertIsInstance(layer, QgsVectorLayer)
# context should have ownership
self.assertFalse(sip.ispyowned(layer))
del context
gc.collect()
self.assertTrue(sip.isdeleted(layer))
def testRun(self):
context = QgsProcessingContext()
# try running an alg using processing.run - ownership of result layer should be transferred back to the caller
res = processing.run('qgis:buffer',
{'DISTANCE': 1, 'INPUT': points(), 'OUTPUT': QgsProcessing.TEMPORARY_OUTPUT},
context=context)
self.assertIn('OUTPUT', res)
# output should be the layer instance itself
self.assertIsInstance(res['OUTPUT'], QgsVectorLayer)
# Python should have ownership
self.assertTrue(sip.ispyowned(res['OUTPUT']))
del context
gc.collect()
self.assertFalse(sip.isdeleted(res['OUTPUT']))
# now try using processing.run with is_child_algorithm = True. Ownership should remain with the context
context = QgsProcessingContext()
res = processing.run('qgis:buffer',
{'DISTANCE': 1, 'INPUT': points(), 'OUTPUT': QgsProcessing.TEMPORARY_OUTPUT},
context=context, is_child_algorithm=True)
self.assertIn('OUTPUT', res)
# output should be a layer string reference, NOT the layer itself
self.assertIsInstance(res['OUTPUT'], str)
layer = context.temporaryLayerStore().mapLayer(res['OUTPUT'])
self.assertIsInstance(layer, QgsVectorLayer)
# context should have ownership
self.assertFalse(sip.ispyowned(layer))
del context
gc.collect()
self.assertTrue(sip.isdeleted(layer))
def testFeatures(self):
ProcessingConfig.initialize()
test_data = points()
test_layer = QgsVectorLayer(test_data, 'test', 'ogr')
# disable check for geometry validity
prevInvalidGeoms = ProcessingConfig.getSetting(ProcessingConfig.FILTER_INVALID_GEOMETRIES)
ProcessingConfig.setSettingValue(ProcessingConfig.FILTER_INVALID_GEOMETRIES, 0)
# test with all features
features = vector.features(test_layer)
self.assertEqual(len(features), 9)
self.assertEqual(set([f.id() for f in features]), set([0, 1, 2, 3, 4, 5, 6, 7, 8]))
# test with selected features
previous_value = ProcessingConfig.getSetting(ProcessingConfig.USE_SELECTED)
ProcessingConfig.setSettingValue(ProcessingConfig.USE_SELECTED, True)
test_layer.selectByIds([2, 4, 6])
features = vector.features(test_layer)
self.assertEqual(len(features), 3)
self.assertEqual(set([f.id() for f in features]), set([2, 4, 6]))
# selection, but not using selected features
ProcessingConfig.setSettingValue(ProcessingConfig.USE_SELECTED, False)
test_layer.selectByIds([2, 4, 6])
features = vector.features(test_layer)
self.assertEqual(len(features), 9)
self.assertEqual(set([f.id() for f in features]), set([0, 1, 2, 3, 4, 5, 6, 7, 8]))
# using selected features, but no selection
ProcessingConfig.setSettingValue(ProcessingConfig.USE_SELECTED, True)
test_layer.removeSelection()
features = vector.features(test_layer)
self.assertEqual(len(features), 9)
self.assertEqual(set([f.id() for f in features]), set([0, 1, 2, 3, 4, 5, 6, 7, 8]))
# test that feature request is honored
ProcessingConfig.setSettingValue(ProcessingConfig.USE_SELECTED, False)
features = vector.features(test_layer, QgsFeatureRequest().setFilterFids([1, 3, 5]))
self.assertEqual(set([f.id() for f in features]), set([1, 3, 5]))
# test that feature request is honored when using selections
ProcessingConfig.setSettingValue(ProcessingConfig.USE_SELECTED, True)
test_layer.selectByIds([2, 4, 6])
features = vector.features(test_layer, QgsFeatureRequest().setFlags(QgsFeatureRequest.NoGeometry))
self.assertTrue(all([not f.hasGeometry() for f in features]))
features = vector.features(test_layer, QgsFeatureRequest().setFlags(QgsFeatureRequest.NoGeometry))
self.assertEqual(set([f.id() for f in features]), set([2, 4, 6]))
ProcessingConfig.setSettingValue(ProcessingConfig.USE_SELECTED, previous_value)
# test exception is raised when filtering invalid geoms
#ProcessingConfig.setSettingValue(ProcessingConfig.FILTER_INVALID_GEOMETRIES, 2)
#test_layer_invalid_geoms = QgsVectorLayer(invalid_geometries(), 'test', 'ogr')
#with self.assertRaises(GeoAlgorithmExecutionException):
# features = vector.features(test_layer_invalid_geoms)
# feats = [f for f in features]
ProcessingConfig.setSettingValue(ProcessingConfig.FILTER_INVALID_GEOMETRIES, prevInvalidGeoms)
def testUniqueValues(self):
ProcessingConfig.initialize()
# disable check for geometry validity
prevInvalidGeoms = ProcessingConfig.getSetting(ProcessingConfig.FILTER_INVALID_GEOMETRIES)
ProcessingConfig.setSettingValue(ProcessingConfig.FILTER_INVALID_GEOMETRIES, 0)
test_data = points()
test_layer = QgsVectorLayer(test_data, 'test', 'ogr')
# field by index
v = vector.uniqueValues(test_layer, 2)
self.assertEqual(len(v), len(set(v)))
self.assertEqual(set(v), set([2, 1, 0]))
# field by name
v = vector.uniqueValues(test_layer, 'id2')
self.assertEqual(len(v), len(set(v)))
self.assertEqual(set(v), set([2, 1, 0]))
# test with selected features
previous_value = ProcessingConfig.getSetting(ProcessingConfig.USE_SELECTED)
ProcessingConfig.setSettingValue(ProcessingConfig.USE_SELECTED, True)
test_layer.selectByIds([2, 4, 6])
v = vector.uniqueValues(test_layer, 'id')
self.assertEqual(len(v), len(set(v)))
self.assertEqual(set(v), set([5, 7, 3]))
ProcessingConfig.setSettingValue(ProcessingConfig.USE_SELECTED, previous_value)
ProcessingConfig.setSettingValue(ProcessingConfig.FILTER_INVALID_GEOMETRIES, prevInvalidGeoms)
def testFeatures(self):
ProcessingConfig.initialize()
test_data = points()
test_layer = QgsVectorLayer(test_data, 'test', 'ogr')
# disable check for geometry validity
prevInvalidGeoms = ProcessingConfig.getSetting(ProcessingConfig.FILTER_INVALID_GEOMETRIES)
ProcessingConfig.setSettingValue(ProcessingConfig.FILTER_INVALID_GEOMETRIES, 0)
# test with all features
features = vector.features(test_layer)
self.assertEqual(len(features), 9)
self.assertEqual(set([f.id() for f in features]), set([0, 1, 2, 3, 4, 5, 6, 7, 8]))
# test with selected features
previous_value = ProcessingConfig.getSetting(ProcessingConfig.USE_SELECTED)
ProcessingConfig.setSettingValue(ProcessingConfig.USE_SELECTED, True)
test_layer.selectByIds([2, 4, 6])
features = vector.features(test_layer)
self.assertEqual(len(features), 3)
self.assertEqual(set([f.id() for f in features]), set([2, 4, 6]))
# selection, but not using selected features
ProcessingConfig.setSettingValue(ProcessingConfig.USE_SELECTED, False)
test_layer.selectByIds([2, 4, 6])
features = vector.features(test_layer)
self.assertEqual(len(features), 9)
self.assertEqual(set([f.id() for f in features]), set([0, 1, 2, 3, 4, 5, 6, 7, 8]))
# using selected features, but no selection
ProcessingConfig.setSettingValue(ProcessingConfig.USE_SELECTED, True)
test_layer.removeSelection()
features = vector.features(test_layer)
self.assertEqual(len(features), 9)
self.assertEqual(set([f.id() for f in features]), set([0, 1, 2, 3, 4, 5, 6, 7, 8]))
# test that feature request is honored
ProcessingConfig.setSettingValue(ProcessingConfig.USE_SELECTED, False)
features = vector.features(test_layer, QgsFeatureRequest().setFilterFids([1, 3, 5]))
self.assertEqual(set([f.id() for f in features]), set([1, 3, 5]))
# test that feature request is honored when using selections
ProcessingConfig.setSettingValue(ProcessingConfig.USE_SELECTED, True)
test_layer.selectByIds([2, 4, 6])
features = vector.features(test_layer, QgsFeatureRequest().setFlags(QgsFeatureRequest.NoGeometry))
self.assertTrue(all([not f.hasGeometry() for f in features]))
features = vector.features(test_layer, QgsFeatureRequest().setFlags(QgsFeatureRequest.NoGeometry))
self.assertEqual(set([f.id() for f in features]), set([2, 4, 6]))
ProcessingConfig.setSettingValue(ProcessingConfig.USE_SELECTED, previous_value)
# test exception is raised when filtering invalid geoms
#ProcessingConfig.setSettingValue(ProcessingConfig.FILTER_INVALID_GEOMETRIES, 2)
#test_layer_invalid_geoms = QgsVectorLayer(invalid_geometries(), 'test', 'ogr')
#with self.assertRaises(GeoAlgorithmExecutionException):
# features = vector.features(test_layer_invalid_geoms)
# feats = [f for f in features]
ProcessingConfig.setSettingValue(ProcessingConfig.FILTER_INVALID_GEOMETRIES, prevInvalidGeoms)
def testRunAndLoadResults(self):
QgsProject.instance().removeAllMapLayers()
context = QgsProcessingContext()
# try running an alg using processing.runAndLoadResults - ownership of result layer should be transferred to
# project, and layer should be present in project
res = processing.runAndLoadResults(
'qgis:buffer', {
'DISTANCE': 1,
'INPUT': points(),
'OUTPUT': QgsProcessing.TEMPORARY_OUTPUT
},
context=context)
self.assertIn('OUTPUT', res)
# output should be the layer path
self.assertIsInstance(res['OUTPUT'], str)
self.assertEqual(
context.layersToLoadOnCompletion()[res['OUTPUT']].project,
QgsProject.instance())
layer = QgsProject.instance().mapLayer(res['OUTPUT'])
self.assertIsInstance(layer, QgsVectorLayer)
# Python should NOT have ownership
self.assertFalse(sip.ispyowned(layer))
def testOptional(self):
parent_name = "test_parent_layer"
test_data = points()
test_layer = QgsVectorLayer(test_data, parent_name, "ogr")
parent = ParameterVector(parent_name, parent_name)
parent.setValue(test_layer)
parameter = ParameterTableField("myName", "myDesc", parent_name, optional=True)
def testOptional(self):
parent_name = 'test_parent_layer'
test_data = points()
test_layer = QgsVectorLayer(test_data, parent_name, 'ogr')
parent = ParameterVector(parent_name, parent_name)
parent.setValue(test_layer)
ParameterTableField('myName', 'myDesc', parent_name, optional=True)
def checkGrassIsInstalled(ignoreRegistrySettings=False):
if ProcessingUtils.isWindows():
path = GrassUtils.grassPath()
if path == "":
return "GRASS folder is not configured.\nPlease configure it before running SAGA algorithms."
cmdpath = os.path.join(path, "bin", "r.out.gdal.exe")
if not os.path.exists(cmdpath):
return (
"The specified GRASS folder does not contain a valid set of GRASS modules.\n"
+
"Please, go to the processing settings dialog, and check that the GRASS\n"
+ "folder is correctly configured")
settings = QSettings()
GRASS_INSTALLED = "/ProcessingQGIS/GrassInstalled"
if not ignoreRegistrySettings:
if settings.contains(GRASS_INSTALLED):
return
try:
from processing import runalg
result = runalg(
"grass:v.voronoi", points(), False, False,
"270778.60198,270855.745301,4458921.97814,4458983.8488", -1,
0.0001, 0, None)
if not os.path.exists(result['output']):
return "It seems that GRASS is not correctly installed and configured in your system.\nPlease install it before running GRASS algorithms."
except:
s = traceback.format_exc()
return "Error while checking GRASS installation. GRASS might not be correctly configured.\n" + s
settings.setValue(GRASS_INSTALLED, True)
def testOptional(self):
parent_name = 'test_parent_layer'
test_data = points()
test_layer = QgsVectorLayer(test_data, parent_name, 'ogr')
parent = ParameterVector(parent_name, parent_name)
parent.setValue(test_layer)
ParameterTableField('myName', 'myDesc', parent_name, optional=True)
def checkGrassIsInstalled(ignoreRegistrySettings=False):
if isWindows():
path = GrassUtils.grassPath()
if path == "":
return "GRASS folder is not configured.\nPlease configure it before running SAGA algorithms."
cmdpath = os.path.join(path, "bin","r.out.gdal.exe")
if not os.path.exists(cmdpath):
return ("The specified GRASS folder does not contain a valid set of GRASS modules.\n"
+ "Please, go to the processing settings dialog, and check that the GRASS\n"
+ "folder is correctly configured")
settings = QSettings()
GRASS_INSTALLED = "/ProcessingQGIS/GrassInstalled"
if not ignoreRegistrySettings:
if settings.contains(GRASS_INSTALLED):
return
try:
from processing import runalg
result = runalg("grass:v.voronoi", points(),False,False,"270778.60198,270855.745301,4458921.97814,4458983.8488",-1,0.0001, 0, None)
if not os.path.exists(result['output']):
return "It seems that GRASS is not correctly installed and configured in your system.\nPlease install it before running GRASS algorithms."
except:
s = traceback.format_exc()
return "Error while checking GRASS installation. GRASS might not be correctly configured.\n" + s;
settings.setValue(GRASS_INSTALLED, True)
def testUniqueValues(self):
ProcessingConfig.initialize()
test_data = points()
test_layer = QgsVectorLayer(test_data, 'test', 'ogr')
# field by index
v = vector.uniqueValues(test_layer, 2)
self.assertEqual(len(v), len(set(v)))
self.assertEqual(set(v), set([2, 1, 0]))
# field by name
v = vector.uniqueValues(test_layer, 'id2')
self.assertEqual(len(v), len(set(v)))
self.assertEqual(set(v), set([2, 1, 0]))
# test with selected features
previous_value = ProcessingConfig.getSetting(
ProcessingConfig.USE_SELECTED)
ProcessingConfig.setSettingValue(ProcessingConfig.USE_SELECTED, True)
test_layer.selectByIds([2, 4, 6])
v = vector.uniqueValues(test_layer, 'id')
self.assertEqual(len(v), len(set(v)))
self.assertEqual(set(v), set([5, 7, 3]))
ProcessingConfig.setSettingValue(ProcessingConfig.USE_SELECTED,
previous_value)
def testValues(self):
test_data = points()
test_layer = QgsVectorLayer(test_data, 'test', 'ogr')
# field by index
res = vector.values(test_layer, 1)
self.assertEqual(res[1], [1, 2, 3, 4, 5, 6, 7, 8, 9])
# field by name
res = vector.values(test_layer, 'id')
self.assertEqual(res['id'], [1, 2, 3, 4, 5, 6, 7, 8, 9])
# two fields
res = vector.values(test_layer, 1, 2)
self.assertEqual(res[1], [1, 2, 3, 4, 5, 6, 7, 8, 9])
self.assertEqual(res[2], [2, 1, 0, 2, 1, 0, 0, 0, 0])
# two fields by name
res = vector.values(test_layer, 'id', 'id2')
self.assertEqual(res['id'], [1, 2, 3, 4, 5, 6, 7, 8, 9])
self.assertEqual(res['id2'], [2, 1, 0, 2, 1, 0, 0, 0, 0])
# two fields by name and index
res = vector.values(test_layer, 'id', 2)
self.assertEqual(res['id'], [1, 2, 3, 4, 5, 6, 7, 8, 9])
self.assertEqual(res[2], [2, 1, 0, 2, 1, 0, 0, 0, 0])
def checkSagaIsInstalled(ignoreRegistrySettings=False):
if ProcessingUtils.isWindows():
path = SagaUtils.sagaPath()
if path == "":
return "SAGA folder is not configured.\nPlease configure it before running SAGA algorithms."
cmdpath = os.path.join(path, "saga_cmd.exe")
if not os.path.exists(cmdpath):
return ("The specified SAGA folder does not contain a valid SAGA executable.\n"
+ "Please, go to the processing settings dialog, and check that the SAGA\n"
+ "folder is correctly configured")
settings = QSettings()
SAGA_INSTALLED = "/ProcessingQGIS/SagaInstalled"
if not ignoreRegistrySettings:
if settings.contains(SAGA_INSTALLED):
return
try:
from processing import runalg
result = runalg("saga:thiessenpolygons", points(), None)
if not os.path.exists(result['POLYGONS']):
return "It seems that SAGA is not correctly installed in your system.\nPlease install it before running SAGA algorithms."
except:
s = traceback.format_exc()
return "Error while checking SAGA installation. SAGA might not be correctly configured.\n" + s;
settings.setValue(SAGA_INSTALLED, True)
def testValues(self):
test_data = points()
test_layer = QgsVectorLayer(test_data, 'test', 'ogr')
# field by index
res = vector.values(test_layer, 1)
self.assertEqual(res[1], [1, 2, 3, 4, 5, 6, 7, 8, 9])
# field by name
res = vector.values(test_layer, 'id')
self.assertEqual(res['id'], [1, 2, 3, 4, 5, 6, 7, 8, 9])
# two fields
res = vector.values(test_layer, 1, 2)
self.assertEqual(res[1], [1, 2, 3, 4, 5, 6, 7, 8, 9])
self.assertEqual(res[2], [2, 1, 0, 2, 1, 0, 0, 0, 0])
# two fields by name
res = vector.values(test_layer, 'id', 'id2')
self.assertEqual(res['id'], [1, 2, 3, 4, 5, 6, 7, 8, 9])
self.assertEqual(res['id2'], [2, 1, 0, 2, 1, 0, 0, 0, 0])
# two fields by name and index
res = vector.values(test_layer, 'id', 2)
self.assertEqual(res['id'], [1, 2, 3, 4, 5, 6, 7, 8, 9])
self.assertEqual(res[2], [2, 1, 0, 2, 1, 0, 0, 0, 0])
def checkSagaIsInstalled(ignoreRegistrySettings=False):
if ProcessingUtils.isWindows():
path = SagaUtils.sagaPath()
if path == "":
return "SAGA folder is not configured.\nPlease configure it before running SAGA algorithms."
cmdpath = os.path.join(path, "saga_cmd.exe")
if not os.path.exists(cmdpath):
return (
"The specified SAGA folder does not contain a valid SAGA executable.\n"
+ "Please, go to the processing settings dialog, and check that the SAGA\n"
+ "folder is correctly configured"
)
settings = QSettings()
SAGA_INSTALLED = "/ProcessingQGIS/SagaInstalled"
if not ignoreRegistrySettings:
if settings.contains(SAGA_INSTALLED):
return
try:
from processing import runalg
result = runalg("saga:thiessenpolygons", points(), None)
if not os.path.exists(result["POLYGONS"]):
return "It seems that SAGA is not correctly installed in your system.\nPlease install it before running SAGA algorithms."
except:
s = traceback.format_exc()
return "Error while checking SAGA installation. SAGA might not be correctly configured.\n" + s
settings.setValue(SAGA_INSTALLED, True)
def checkGrassIsInstalled(ignorePreviousState=False):
if isWindows():
path = GrassUtils.grassPath()
if path == "":
return GrassUtils.tr(
"GRASS folder is not configured.\nPlease configure " "it before running GRASS algorithms."
)
cmdpath = os.path.join(path, "bin", "r.out.gdal.exe")
if not os.path.exists(cmdpath):
return GrassUtils.tr(
'The specified GRASS folder "{}" does not contain a valid '
"set of GRASS modules. Please, go to the Processing "
"settings dialog, and check that the GRASS folder is "
"correctly configured".format(os.path.join(path, "bin"))
)
if not ignorePreviousState:
if GrassUtils.isGrassInstalled:
return
try:
from processing import runalg
result = runalg("grass:v.voronoi", points(), False, False, None, -1, 0.0001, 0, None)
if not os.path.exists(result["output"]):
return GrassUtils.tr(
"It seems that GRASS is not correctly installed and "
"configured in your system.\nPlease install it before "
"running GRASS algorithms."
)
except:
return GrassUtils.tr(
"Error while checking GRASS installation. GRASS might not " "be correctly configured.\n"
)
GrassUtils.isGrassInstalled = True
def testUniqueValues(self):
ProcessingConfig.initialize()
# disable check for geometry validity
prevInvalidGeoms = ProcessingConfig.getSetting(
ProcessingConfig.FILTER_INVALID_GEOMETRIES)
ProcessingConfig.setSettingValue(
ProcessingConfig.FILTER_INVALID_GEOMETRIES, 0)
test_data = points()
test_layer = QgsVectorLayer(test_data, 'test', 'ogr')
# field by index
v = vector.uniqueValues(test_layer, 2)
self.assertEqual(len(v), len(set(v)))
self.assertEqual(set(v), set([2, 1, 0]))
# field by name
v = vector.uniqueValues(test_layer, 'id2')
self.assertEqual(len(v), len(set(v)))
self.assertEqual(set(v), set([2, 1, 0]))
# test with selected features
previous_value = ProcessingConfig.getSetting(
ProcessingConfig.USE_SELECTED)
ProcessingConfig.setSettingValue(ProcessingConfig.USE_SELECTED, True)
test_layer.selectByIds([2, 4, 6])
v = vector.uniqueValues(test_layer, 'id')
self.assertEqual(len(v), len(set(v)))
self.assertEqual(set(v), set([5, 7, 3]))
ProcessingConfig.setSettingValue(ProcessingConfig.USE_SELECTED,
previous_value)
ProcessingConfig.setSettingValue(
ProcessingConfig.FILTER_INVALID_GEOMETRIES, prevInvalidGeoms)
def testUniqueValues(self):
ProcessingConfig.initialize()
test_data = points()
test_layer = QgsVectorLayer(test_data, 'test', 'ogr')
# field by index
v = vector.uniqueValues(test_layer, 2)
self.assertEqual(len(v), len(set(v)))
self.assertEqual(set(v), set([2, 1, 0]))
# field by name
v = vector.uniqueValues(test_layer, 'id2')
self.assertEqual(len(v), len(set(v)))
self.assertEqual(set(v), set([2, 1, 0]))
# test with selected features
previous_value = ProcessingConfig.getSetting(ProcessingConfig.USE_SELECTED)
ProcessingConfig.setSettingValue(ProcessingConfig.USE_SELECTED, True)
test_layer.selectByIds([2, 4, 6])
v = vector.uniqueValues(test_layer, 'id')
self.assertEqual(len(v), len(set(v)))
self.assertEqual(set(v), set([5, 7, 3]))
ProcessingConfig.setSettingValue(ProcessingConfig.USE_SELECTED, previous_value)
def test_attributeValues(self):
layer = processing.getobject(points())
attributeValues = values(layer, "ID")
i = 1
for value in attributeValues['ID']:
self.assertEqual(int(i), int(value))
i += 1
self.assertEquals(13, i)
def test_featuresWithSelection(self):
layer = processing.getobject(points())
feature = layer.getFeatures().next()
selected = [feature.id()]
layer.setSelectedFeatures(selected)
features = processing.getfeatures(layer)
self.assertEqual(1, len(features))
layer.setSelectedFeatures([])
def test_attributeValues(self):
layer = processing.getObject(points())
attributeValues = values(layer, "ID")
i = 1
for value in attributeValues['ID']:
self.assertEqual(int(i), int(value))
i+=1
self.assertEquals(13,i)
def test_featuresWithSelection(self):
layer = processing.getObject(points())
feature = layer.getFeatures().next()
selected = [feature.id()]
layer.setSelectedFeatures(selected)
features = processing.features(layer)
self.assertEqual(1, len(features))
layer.setSelectedFeatures([])
def testFeatures(self):
ProcessingConfig.initialize()
test_data = points()
test_layer = QgsVectorLayer(test_data, 'test', 'ogr')
# test with all features
features = vector.features(test_layer)
self.assertEqual(len(features), 9)
self.assertEqual(set([f.id() for f in features]),
set([0, 1, 2, 3, 4, 5, 6, 7, 8]))
# test with selected features
previous_value = ProcessingConfig.getSetting(
ProcessingConfig.USE_SELECTED)
ProcessingConfig.setSettingValue(ProcessingConfig.USE_SELECTED, True)
test_layer.selectByIds([2, 4, 6])
features = vector.features(test_layer)
self.assertEqual(len(features), 3)
self.assertEqual(set([f.id() for f in features]), set([2, 4, 6]))
# selection, but not using selected features
ProcessingConfig.setSettingValue(ProcessingConfig.USE_SELECTED, False)
test_layer.selectByIds([2, 4, 6])
features = vector.features(test_layer)
self.assertEqual(len(features), 9)
self.assertEqual(set([f.id() for f in features]),
set([0, 1, 2, 3, 4, 5, 6, 7, 8]))
# using selected features, but no selection
ProcessingConfig.setSettingValue(ProcessingConfig.USE_SELECTED, True)
test_layer.removeSelection()
features = vector.features(test_layer)
self.assertEqual(len(features), 9)
self.assertEqual(set([f.id() for f in features]),
set([0, 1, 2, 3, 4, 5, 6, 7, 8]))
# test that feature request is honored
ProcessingConfig.setSettingValue(ProcessingConfig.USE_SELECTED, False)
features = vector.features(
test_layer,
QgsFeatureRequest().setFilterFids([1, 3, 5]))
self.assertEqual(set([f.id() for f in features]), set([1, 3, 5]))
# test that feature request is honored when using selections
ProcessingConfig.setSettingValue(ProcessingConfig.USE_SELECTED, True)
test_layer.selectByIds([2, 4, 6])
features = vector.features(
test_layer,
QgsFeatureRequest().setFlags(QgsFeatureRequest.NoGeometry))
self.assertTrue(all([not f.hasGeometry() for f in features]))
features = vector.features(
test_layer,
QgsFeatureRequest().setFlags(QgsFeatureRequest.NoGeometry))
self.assertEqual(set([f.id() for f in features]), set([2, 4, 6]))
ProcessingConfig.setSettingValue(ProcessingConfig.USE_SELECTED,
previous_value)
def testScriptCode(self):
parent_name = 'test_parent_layer'
test_data = points()
test_layer = QgsVectorLayer(test_data, parent_name, 'ogr') # NOQA
parameter = ParameterTableField('myName', 'myDesc', parent_name)
code = parameter.getAsScriptCode()
result = getParameterFromString(code)
self.assertIsInstance(result, ParameterTableField)
parameter.optional = True
code = parameter.getAsScriptCode()
result = getParameterFromString(code)
self.assertIsInstance(result, ParameterTableField)
self.assertTrue(result.optional)
def testScriptCode(self):
parent_name = "test_parent_layer"
test_data = points()
test_layer = QgsVectorLayer(test_data, parent_name, "ogr")
parameter = ParameterTableField("myName", "myDesc", parent_name)
code = parameter.getAsScriptCode()
result = getParameterFromString(code)
self.assertIsInstance(result, ParameterTableField)
parameter.optional = True
code = parameter.getAsScriptCode()
result = getParameterFromString(code)
self.assertIsInstance(result, ParameterTableField)
self.assertTrue(result.optional)
def testScriptCode(self):
parent_name = 'test_parent_layer'
test_data = points()
test_layer = QgsVectorLayer(test_data, parent_name, 'ogr')
parameter = ParameterTableField(
'myName', 'myDesc', parent_name)
code = parameter.getAsScriptCode()
result = getParameterFromString(code)
self.assertTrue(isinstance(result, ParameterTableField))
parameter.optional = True
code = parameter.getAsScriptCode()
result = getParameterFromString(code)
self.assertTrue(isinstance(result, ParameterTableField))
self.assertTrue(result.optional)
def testValues(self):
ProcessingConfig.initialize()
# disable check for geometry validity
prevInvalidGeoms = ProcessingConfig.getSetting(
ProcessingConfig.FILTER_INVALID_GEOMETRIES)
ProcessingConfig.setSettingValue(
ProcessingConfig.FILTER_INVALID_GEOMETRIES, 0)
test_data = points()
test_layer = QgsVectorLayer(test_data, 'test', 'ogr')
# field by index
res = vector.values(test_layer, 1)
self.assertEqual(res[1], [1, 2, 3, 4, 5, 6, 7, 8, 9])
# field by name
res = vector.values(test_layer, 'id')
self.assertEqual(res['id'], [1, 2, 3, 4, 5, 6, 7, 8, 9])
# two fields
res = vector.values(test_layer, 1, 2)
self.assertEqual(res[1], [1, 2, 3, 4, 5, 6, 7, 8, 9])
self.assertEqual(res[2], [2, 1, 0, 2, 1, 0, 0, 0, 0])
# two fields by name
res = vector.values(test_layer, 'id', 'id2')
self.assertEqual(res['id'], [1, 2, 3, 4, 5, 6, 7, 8, 9])
self.assertEqual(res['id2'], [2, 1, 0, 2, 1, 0, 0, 0, 0])
# two fields by name and index
res = vector.values(test_layer, 'id', 2)
self.assertEqual(res['id'], [1, 2, 3, 4, 5, 6, 7, 8, 9])
self.assertEqual(res[2], [2, 1, 0, 2, 1, 0, 0, 0, 0])
# test with selected features
previous_value = ProcessingConfig.getSetting(
ProcessingConfig.USE_SELECTED)
ProcessingConfig.setSettingValue(ProcessingConfig.USE_SELECTED, True)
test_layer.selectByIds([2, 4, 6])
res = vector.values(test_layer, 1)
self.assertEqual(set(res[1]), set([5, 7, 3]))
ProcessingConfig.setSettingValue(ProcessingConfig.USE_SELECTED,
previous_value)
ProcessingConfig.setSettingValue(
ProcessingConfig.FILTER_INVALID_GEOMETRIES, prevInvalidGeoms)
def testValues(self):
ProcessingConfig.initialize()
# disable check for geometry validity
prevInvalidGeoms = ProcessingConfig.getSetting(
ProcessingConfig.FILTER_INVALID_GEOMETRIES)
ProcessingConfig.setSettingValue(
ProcessingConfig.FILTER_INVALID_GEOMETRIES, 0)
test_data = points()
test_layer = QgsVectorLayer(test_data, 'test', 'ogr')
# field by index
res = vector.values(test_layer, 1)
self.assertEqual(res[1], [1, 2, 3, 4, 5, 6, 7, 8, 9])
# field by name
res = vector.values(test_layer, 'id')
self.assertEqual(res['id'], [1, 2, 3, 4, 5, 6, 7, 8, 9])
# two fields
res = vector.values(test_layer, 1, 2)
self.assertEqual(res[1], [1, 2, 3, 4, 5, 6, 7, 8, 9])
self.assertEqual(res[2], [2, 1, 0, 2, 1, 0, 0, 0, 0])
# two fields by name
res = vector.values(test_layer, 'id', 'id2')
self.assertEqual(res['id'], [1, 2, 3, 4, 5, 6, 7, 8, 9])
self.assertEqual(res['id2'], [2, 1, 0, 2, 1, 0, 0, 0, 0])
# two fields by name and index
res = vector.values(test_layer, 'id', 2)
self.assertEqual(res['id'], [1, 2, 3, 4, 5, 6, 7, 8, 9])
self.assertEqual(res[2], [2, 1, 0, 2, 1, 0, 0, 0, 0])
# test with selected features
previous_value = ProcessingConfig.getSetting(
ProcessingConfig.USE_SELECTED)
ProcessingConfig.setSettingValue(ProcessingConfig.USE_SELECTED, True)
test_layer.selectByIds([2, 4, 6])
res = vector.values(test_layer, 1)
self.assertEqual(set(res[1]), set([5, 7, 3]))
ProcessingConfig.setSettingValue(ProcessingConfig.USE_SELECTED,
previous_value)
ProcessingConfig.setSettingValue(
ProcessingConfig.FILTER_INVALID_GEOMETRIES, prevInvalidGeoms)
def testFeatures(self):
ProcessingConfig.initialize()
test_data = points()
test_layer = QgsVectorLayer(test_data, 'test', 'ogr')
# test with all features
features = vector.features(test_layer)
self.assertEqual(len(features), 9)
self.assertEqual(set([f.id() for f in features]), set([0, 1, 2, 3, 4, 5, 6, 7, 8]))
# test with selected features
previous_value = ProcessingConfig.getSetting(ProcessingConfig.USE_SELECTED)
ProcessingConfig.setSettingValue(ProcessingConfig.USE_SELECTED, True)
test_layer.selectByIds([2, 4, 6])
features = vector.features(test_layer)
self.assertEqual(len(features), 3)
self.assertEqual(set([f.id() for f in features]), set([2, 4, 6]))
# selection, but not using selected features
ProcessingConfig.setSettingValue(ProcessingConfig.USE_SELECTED, False)
test_layer.selectByIds([2, 4, 6])
features = vector.features(test_layer)
self.assertEqual(len(features), 9)
self.assertEqual(set([f.id() for f in features]), set([0, 1, 2, 3, 4, 5, 6, 7, 8]))
# using selected features, but no selection
ProcessingConfig.setSettingValue(ProcessingConfig.USE_SELECTED, True)
test_layer.removeSelection()
features = vector.features(test_layer)
self.assertEqual(len(features), 9)
self.assertEqual(set([f.id() for f in features]), set([0, 1, 2, 3, 4, 5, 6, 7, 8]))
# test that feature request is honored
ProcessingConfig.setSettingValue(ProcessingConfig.USE_SELECTED, False)
features = vector.features(test_layer, QgsFeatureRequest().setFilterFids([1, 3, 5]))
self.assertEqual(set([f.id() for f in features]), set([1, 3, 5]))
# test that feature request is honored when using selections
ProcessingConfig.setSettingValue(ProcessingConfig.USE_SELECTED, True)
test_layer.selectByIds([2, 4, 6])
features = vector.features(test_layer, QgsFeatureRequest().setFlags(QgsFeatureRequest.NoGeometry))
self.assertTrue(all([not f.hasGeometry() for f in features]))
features = vector.features(test_layer, QgsFeatureRequest().setFlags(QgsFeatureRequest.NoGeometry))
self.assertEqual(set([f.id() for f in features]), set([2, 4, 6]))
ProcessingConfig.setSettingValue(ProcessingConfig.USE_SELECTED, previous_value)
def checkGrassIsInstalled(ignorePreviousState=False):
if isWindows():
path = GrassUtils.grassPath()
if path == "":
return "GRASS folder is not configured.\nPlease configure \
it before running GRASS algorithms."
cmdpath = os.path.join(path, "bin", "r.out.gdal.exe")
if not os.path.exists(cmdpath):
return (
"The specified GRASS folder does not contain a valid \
set of GRASS modules.\n"
+ "Please, go to the Processing settings dialog, and \
check that the GRASS\n"
+ "folder is correctly configured"
)
if not ignorePreviousState:
if GrassUtils.isGrassInstalled:
return
try:
from processing import runalg
result = runalg(
"grass:v.voronoi",
points(),
False,
False,
"270778.60198,270855.745301,4458921.97814,4458983.8488",
-1,
0.0001,
0,
None,
)
if not os.path.exists(result["output"]):
return "It seems that GRASS is not correctly installed and \
configured in your system.\nPlease install it before \
running GRASS algorithms."
except:
s = traceback.format_exc()
return (
"Error while checking GRASS installation. GRASS might not \
be correctly configured.\n"
+ s
)
GrassUtils.isGrassInstalled = True
def test_qgiscountpointsinpolygon(self):
outputs=processing.runalg("qgis:countpointsinpolygon",polygons(),points(),"NUMPOINTS", self.getOutputFile())
output=outputs['OUTPUT']
layer=QGisLayers.getObjectFromUri(output, True)
fields=layer.pendingFields()
expectednames=['ID','POLY_NUM_A','POLY_ST_A','NUMPOINTS']
expectedtypes=['Integer','Real','String','Real']
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.getfeatures(layer)
self.assertEqual(2, len(features))
feature=features.next()
attrs=feature.attributes()
expectedvalues=["1","1.1","string a","6"]
values=[str(attr) for attr in attrs]
self.assertEqual(expectedvalues, values)
def testWrongformat(self):
outputs=processing.runalg("qgis:countpointsinpolygon",polygons(),points(),"NUMPOINTS",getTempFilename("wrongext"))
output=outputs['OUTPUT']
self.assertTrue(output.endswith('shp'))
layer=dataobjects.getObjectFromUri(output, True)
fields=layer.pendingFields()
expectednames=['ID','POLY_NUM_A','POLY_ST_A','NUMPOINTS']
expectedtypes=['Integer','Real','String','Real']
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(2, len(features))
feature=features.next()
attrs=feature.attributes()
expectedvalues=["1","1.1","string a","6.0"]
values=[str(attr) for attr in attrs]
self.assertEqual(expectedvalues, values)
def checkGrass7IsInstalled(ignorePreviousState=False):
if isWindows():
path = Grass7Utils.grassPath()
if path == '':
return Grass7Utils.tr(
'GRASS GIS 7 folder is not configured. Please configure '
'it before running GRASS GIS 7 algorithms.')
cmdpath = os.path.join(path, 'bin', 'r.out.gdal.exe')
if not os.path.exists(cmdpath):
return Grass7Utils.tr(
'The specified GRASS 7 folder "{}" does not contain '
'a valid set of GRASS 7 modules.\nPlease, go to the '
'Processing settings dialog, and check that the '
'GRASS 7\nfolder is correctly configured'.format(
os.path.join(path, 'bin')))
if not ignorePreviousState:
if Grass7Utils.isGrass7Installed:
return
try:
from processing import runalg
result = runalg(
'grass7:v.voronoi',
points(),
False,
False,
'270778.60198,270855.745301,4458921.97814,4458983.8488',
-1,
0.0001,
0,
None,
)
if not os.path.exists(result['output']):
return Grass7Utils.tr(
'It seems that GRASS GIS 7 is not correctly installed and '
'configured in your system.\nPlease install it before '
'running GRASS GIS 7 algorithms.')
except:
return Grass7Utils.tr(
'Error while checking GRASS GIS 7 installation. GRASS GIS 7 '
'might not be correctly configured.\n')
Grass7Utils.isGrass7Installed = True
def testWrongformat(self):
outputs=processing.runalg("qgis:countpointsinpolygon",polygons(),points(),"NUMPOINTS",ProcessingUtils.getTempFilename("wrongext"))
output=outputs['OUTPUT']
self.assertTrue(output.endswith('shp'))
layer=QGisLayers.getObjectFromUri(output, True)
fields=layer.pendingFields()
expectednames=['ID','POLY_NUM_A','POLY_ST_A','NUMPOINTS']
expectedtypes=['Integer','Real','String','Real']
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.getfeatures(layer)
self.assertEqual(2, len(features))
feature=features.next()
attrs=feature.attributes()
expectedvalues=["1","1.1","string a","6.0"]
values=[str(attr) for attr in attrs]
self.assertEqual(expectedvalues, values)
def checkGrass7IsInstalled(ignorePreviousState=False):
if isWindows():
path = Grass7Utils.grassPath()
if path == '':
return Grass7Utils.tr(
'GRASS GIS 7 folder is not configured. Please configure '
'it before running GRASS GIS 7 algorithms.')
cmdpath = os.path.join(path, 'bin', 'r.out.gdal.exe')
if not os.path.exists(cmdpath):
return Grass7Utils.tr(
'The specified GRASS 7 folder "{}" does not contain '
'a valid set of GRASS 7 modules.\nPlease, go to the '
'Processing settings dialog, and check that the '
'GRASS 7\nfolder is correctly configured'.format(
os.path.join(path, 'bin')))
if not ignorePreviousState:
if Grass7Utils.isGrass7Installed:
return
try:
from processing import run
result = run(
'grass7:v.voronoi',
points(),
False,
False,
None,
-1,
0.0001,
0,
None,
)
if not os.path.exists(result['output']):
return Grass7Utils.tr(
'It seems that GRASS GIS 7 is not correctly installed and '
'configured in your system.\nPlease install it before '
'running GRASS GIS 7 algorithms.')
except:
return Grass7Utils.tr(
'Error while checking GRASS GIS 7 installation. GRASS GIS 7 '
'might not be correctly configured.\n')
Grass7Utils.isGrass7Installed = True
def testRunAndLoadResults(self):
QgsProject.instance().removeAllMapLayers()
context = QgsProcessingContext()
# try running an alg using processing.runAndLoadResults - ownership of result layer should be transferred to
# project, and layer should be present in project
res = processing.runAndLoadResults('qgis:buffer',
{'DISTANCE': 1, 'INPUT': points(), 'OUTPUT': QgsProcessing.TEMPORARY_OUTPUT},
context=context)
self.assertIn('OUTPUT', res)
# output should be the layer path
self.assertIsInstance(res['OUTPUT'], str)
self.assertEqual(context.layersToLoadOnCompletion()[res['OUTPUT']].project, QgsProject.instance())
layer = QgsProject.instance().mapLayer(res['OUTPUT'])
self.assertIsInstance(layer, QgsVectorLayer)
# Python should NOT have ownership
self.assertFalse(sip.ispyowned(layer))
def checkGrassIsInstalled(ignorePreviousState=False):
if isWindows():
path = GrassUtils.grassPath()
if path == '':
return GrassUtils.tr(
'GRASS folder is not configured.\nPlease configure '
'it before running GRASS algorithms.')
cmdpath = os.path.join(path, 'bin', 'r.out.gdal.exe')
if not os.path.exists(cmdpath):
return GrassUtils.tr(
'The specified GRASS folder "{}" does not contain a valid '
'set of GRASS modules. Please, go to the Processing '
'settings dialog, and check that the GRASS folder is '
'correctly configured'.format(os.path.join(path, 'bin')))
if not ignorePreviousState:
if GrassUtils.isGrassInstalled:
return
try:
from processing import runalg
result = runalg(
'grass:v.voronoi',
points(),
False,
False,
'270778.60198,270855.745301,4458921.97814,4458983.8488',
-1,
0.0001,
0,
None,
)
if not os.path.exists(result['output']):
return GrassUtils.tr(
'It seems that GRASS is not correctly installed and '
'configured in your system.\nPlease install it before '
'running GRASS algorithms.')
except:
return GrassUtils.tr(
'Error while checking GRASS installation. GRASS might not '
'be correctly configured.\n')
GrassUtils.isGrassInstalled = True
def checkGrassIsInstalled(ignorePreviousState=False):
if isWindows():
path = GrassUtils.grassPath()
if path == '':
return GrassUtils.tr(
'GRASS folder is not configured.\nPlease configure '
'it before running GRASS algorithms.')
cmdpath = os.path.join(path, 'bin', 'r.out.gdal.exe')
if not os.path.exists(cmdpath):
return GrassUtils.tr(
'The specified GRASS folder "{}" does not contain a valid '
'set of GRASS modules. Please, go to the Processing '
'settings dialog, and check that the GRASS folder is '
'correctly configured'.format(os.path.join(path, 'bin')))
if not ignorePreviousState:
if GrassUtils.isGrassInstalled:
return
try:
from processing import runalg
result = runalg(
'grass:v.voronoi',
points(),
False,
False,
None,
-1,
0.0001,
0,
None,
)
if not os.path.exists(result['output']):
return GrassUtils.tr(
'It seems that GRASS is not correctly installed and '
'configured in your system.\nPlease install it before '
'running GRASS algorithms.')
except:
return GrassUtils.tr(
'Error while checking GRASS installation. GRASS might not '
'be correctly configured.\n')
GrassUtils.isGrassInstalled = True
def checkGrass7IsInstalled(ignorePreviousState=False):
if isWindows():
path = Grass7Utils.grassPath()
if path == '':
return 'GRASS GIS 7 folder is not configured.\nPlease configure \
it before running GRASS GIS 7 algorithms.'
cmdpath = os.path.join(path, 'bin', 'r.out.gdal.exe')
if not os.path.exists(cmdpath):
return 'The specified GRASS GIS 7 folder does not contain a valid \
set of GRASS GIS 7 modules.\n' \
+ 'Please, go to the Processing settings dialog, and \
check that the GRASS GIS 7\n' \
+ 'folder is correctly configured'
if not ignorePreviousState:
if Grass7Utils.isGrass7Installed:
return
try:
from processing import runalg
result = runalg(
'grass7:v.voronoi',
points(),
False,
False,
'270778.60198,270855.745301,4458921.97814,4458983.8488',
-1,
0.0001,
0,
None,
)
if not os.path.exists(result['output']):
return 'It seems that GRASS GIS 7 is not correctly installed and \
configured in your system.\nPlease install it before \
running GRASS GIS 7 algorithms.'
except:
s = traceback.format_exc()
return 'Error while checking GRASS GIS 7 installation. GRASS GIS 7 might not \
be correctly configured.\n' + s
Grass7Utils.isGrass7Installed = True
def test_modeleroptionalfield(self):
outputs = processing.runalg('modeler:optionalfield', points(), None)
output = outputs['OUTPUT_ALG0']
layer = dataobjects.getObjectFromUri(output, True)
fields = layer.pendingFields()
expectednames = ['id', 'value', 'area', 'perim']
expectedtypes = ['Integer', 'String', 'Real', 'Real']
names = [unicode(f.name()) for f in fields]
types = [unicode(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', 'all', '3592.818848', '230.989919']
values = [unicode(attr) for attr in attrs]
self.assertEqual(expectedvalues, values)
wkt = 'POLYGON((270839.46818665 4458921.97813894,270778.60197966 4458935.96883677,270786.54279065 4458980.04784113,270803.15756434 4458983.84880322,270839.65586926 4458983.16267036,270855.74530134 4458940.79948673,270839.46818665 4458921.97813894))'
self.assertEqual(wkt, unicode(feature.geometry().exportToWkt()))
def test_qgiscountpointsinpolygon(self):
outputs = processing.runalg('qgis:countpointsinpolygon', polygons(),
points(), 'NUMPOINTS',
self.getOutputFile())
output = outputs['OUTPUT']
layer = dataobjects.getObjectFromUri(output, True)
fields = layer.pendingFields()
expectednames = ['ID', 'POLY_NUM_A', 'POLY_ST_A', 'NUMPOINTS']
expectedtypes = ['Integer', 'Real', 'String', 'Real']
names = [unicode(f.name()) for f in fields]
types = [unicode(f.typeName()) for f in fields]
self.assertEqual(expectednames, names)
self.assertEqual(expectedtypes, types)
features = processing.features(layer)
self.assertEqual(2, len(features))
feature = features.next()
attrs = feature.attributes()
expectedvalues = ['1', '1.1', 'string a', '6']
values = [unicode(attr) for attr in attrs]
self.assertEqual(expectedvalues, values)
def test_qgiscountpointsinpolygon(self):
outputs = processing.runalg('qgis:countpointsinpolygon', polygons(),
points(), 'NUMPOINTS',
self.getOutputFile())
output = outputs['OUTPUT']
layer = dataobjects.getObjectFromUri(output, True)
fields = layer.pendingFields()
expectednames = ['ID', 'POLY_NUM_A', 'POLY_ST_A', 'NUMPOINTS']
expectedtypes = ['Integer', 'Real', 'String', 'Real']
names = [unicode(f.name()) for f in fields]
types = [unicode(f.typeName()) for f in fields]
self.assertEqual(expectednames, names)
self.assertEqual(expectedtypes, types)
features = processing.features(layer)
self.assertEqual(2, len(features))
feature = features.next()
attrs = feature.attributes()
expectedvalues = ['1', '1.1', 'string a', '6']
values = [unicode(attr) for attr in attrs]
self.assertEqual(expectedvalues, values)
def test_qgiscountpointsinpolygon(self):
outputs = processing.runalg(
"qgis:countpointsinpolygon", polygons(), points(), "NUMPOINTS", self.getOutputFile()
)
output = outputs["OUTPUT"]
layer = dataobjects.getObjectFromUri(output, True)
fields = layer.pendingFields()
expectednames = ["ID", "POLY_NUM_A", "POLY_ST_A", "NUMPOINTS"]
expectedtypes = ["Integer", "Real", "String", "Real"]
names = [unicode(f.name()) for f in fields]
types = [unicode(f.typeName()) for f in fields]
self.assertEqual(expectednames, names)
self.assertEqual(expectedtypes, types)
features = processing.features(layer)
self.assertEqual(2, len(features))
feature = features.next()
attrs = feature.attributes()
expectedvalues = ["1", "1.1", "string a", "6"]
values = [unicode(attr) for attr in attrs]
self.assertEqual(expectedvalues, values)
def test_modeleroptionalfield(self):
outputs = processing.runalg("modeler:optionalfield", points(), None)
output = outputs["OUTPUT_ALG0"]
layer = dataobjects.getObjectFromUri(output, True)
fields = layer.pendingFields()
expectednames = ["id", "value", "area", "perim"]
expectedtypes = ["Integer", "String", "Real", "Real"]
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", "all", "3592.818848", "230.989919"]
values = [str(attr) for attr in attrs]
self.assertEqual(expectedvalues, values)
wkt = "POLYGON((270839.46818665 4458921.97813894,270778.60197966 4458935.96883677,270786.54279065 4458980.04784113,270803.15756434 4458983.84880322,270839.65586926 4458983.16267036,270855.74530134 4458940.79948673,270839.46818665 4458921.97813894))"
self.assertEqual(wkt, str(feature.geometry().exportToWkt()))
def test_modelersagagrass(self):
outputs = processing.runalg("modeler:sagagrass", points(), None)
output = outputs["CENTROIDS_ALG1"]
layer = dataobjects.getObjectFromUri(output, True)
fields = layer.pendingFields()
expectednames = ["CAT"]
expectedtypes = ["Real"]
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(12, len(features))
feature = features.next()
attrs = feature.attributes()
expectedvalues = ["1"]
values = [str(attr) for attr in attrs]
self.assertEqual(expectedvalues, values)
wkt = "POINT(270839.65586926 4458983.16267036)"
self.assertEqual(wkt, str(feature.geometry().exportToWkt()))
def test_modeleroptionalfield(self):
outputs = processing.runalg('modeler:optionalfield', points(), None)
output = outputs['OUTPUT_ALG0']
layer = dataobjects.getObjectFromUri(output, True)
fields = layer.pendingFields()
expectednames = ['id', 'value', 'area', 'perim']
expectedtypes = ['Integer', 'String', 'Real', 'Real']
names = [unicode(f.name()) for f in fields]
types = [unicode(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', 'all', '3592.818848', '230.989919']
values = [unicode(attr) for attr in attrs]
self.assertEqual(expectedvalues, values)
wkt = 'POLYGON((270839.46818665 4458921.97813894,270778.60197966 4458935.96883677,270786.54279065 4458980.04784113,270803.15756434 4458983.84880322,270839.65586926 4458983.16267036,270855.74530134 4458940.79948673,270839.46818665 4458921.97813894))'
self.assertEqual(wkt, unicode(feature.geometry().exportToWkt()))
def test_modelersagagrass(self):
outputs = processing.runalg('modeler:sagagrass', points(), None)
output = outputs['CENTROIDS_ALG1']
layer = dataobjects.getObjectFromUri(output, True)
fields = layer.pendingFields()
expectednames = ['CAT']
expectedtypes = ['Real']
names = [unicode(f.name()) for f in fields]
types = [unicode(f.typeName()) for f in fields]
self.assertEqual(expectednames, names)
self.assertEqual(expectedtypes, types)
features = processing.features(layer)
self.assertEqual(12, len(features))
feature = features.next()
attrs = feature.attributes()
expectedvalues = ['1']
values = [unicode(attr) for attr in attrs]
self.assertEqual(expectedvalues, values)
wkt = 'POINT(270839.65586926 4458983.16267036)'
self.assertEqual(wkt, unicode(feature.geometry().exportToWkt()))
def testWrongformat(self):
outputs = processing.runalg('qgis:countpointsinpolygon', polygons(),
points(), 'NUMPOINTS',
getTempFilename('wrongext'))
output = outputs['OUTPUT']
self.assertTrue(output.endswith('shp'))
layer = dataobjects.getObjectFromUri(output, True)
fields = layer.pendingFields()
expectednames = ['ID', 'POLY_NUM_A', 'POLY_ST_A', 'NUMPOINTS']
expectedtypes = ['Integer', 'Real', 'String', 'Real']
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(2, len(features))
feature = features.next()
attrs = feature.attributes()
expectedvalues = ['1', '1.1', 'string a', '6.0']
values = [str(attr) for attr in attrs]
self.assertEqual(expectedvalues, values)
def checkGrassIsInstalled(ignorePreviousState=False):
if isWindows():
path = GrassUtils.grassPath()
if path == '':
return 'GRASS folder is not configured.\nPlease configure \
it before running GRASS algorithms.'
cmdpath = os.path.join(path, 'bin', 'r.out.gdal.exe')
if not os.path.exists(cmdpath):
return 'The specified GRASS folder does not contain a valid \
set of GRASS modules.\n' \
+ 'Please, go to the Processing settings dialog, and \
check that the GRASS\n' \
+ 'folder is correctly configured'
if not ignorePreviousState:
if GrassUtils.isGrassInstalled:
return
try:
from processing import runalg
result = runalg(
'grass:v.voronoi',
points(),
False,
False,
'270778.60198,270855.745301,4458921.97814,4458983.8488',
-1,
0.0001,
0,
None,
)
if not os.path.exists(result['output']):
return 'It seems that GRASS is not correctly installed and \
configured in your system.\nPlease install it before \
running GRASS algorithms.'
except:
return 'Error while checking GRASS installation. GRASS might not \
be correctly configured.\n' + s
GrassUtils.isGrassInstalled = True
def testValues(self):
context = QgsProcessingContext()
# disable check for geometry validity
context.setFlags(QgsProcessingContext.Flags(0))
test_data = points()
test_layer = QgsVectorLayer(test_data, 'test', 'ogr')
# field by index
res = vector.values(test_layer, context, 1)
self.assertEqual(res[1], [1, 2, 3, 4, 5, 6, 7, 8, 9])
# field by name
res = vector.values(test_layer, context, 'id')
self.assertEqual(res['id'], [1, 2, 3, 4, 5, 6, 7, 8, 9])
# two fields
res = vector.values(test_layer, context, 1, 2)
self.assertEqual(res[1], [1, 2, 3, 4, 5, 6, 7, 8, 9])
self.assertEqual(res[2], [2, 1, 0, 2, 1, 0, 0, 0, 0])
# two fields by name
res = vector.values(test_layer, context, 'id', 'id2')
self.assertEqual(res['id'], [1, 2, 3, 4, 5, 6, 7, 8, 9])
self.assertEqual(res['id2'], [2, 1, 0, 2, 1, 0, 0, 0, 0])
# two fields by name and index
res = vector.values(test_layer, context, 'id', 2)
self.assertEqual(res['id'], [1, 2, 3, 4, 5, 6, 7, 8, 9])
self.assertEqual(res[2], [2, 1, 0, 2, 1, 0, 0, 0, 0])
# test with selected features
context.setFlags(QgsProcessingContext.UseSelectionIfPresent)
test_layer.selectByIds([2, 4, 6])
res = vector.values(test_layer, context, 1)
self.assertEqual(set(res[1]), set([5, 7, 3]))
def test_runandload(self):
processing.runandload("qgis:countpointsinpolygon", polygons(),
points(), "NUMPOINTS", None)
layer = getfromname("Result")
self.assertIsNotNone(layer)
def test_runandload(self):
processing.runandload('qgis:countpointsinpolygon', polygons(),
points(), 'NUMPOINTS', None)
layer = getObjectFromName('Result')
self.assertIsNotNone(layer)
def test_featuresWithoutSelection(self):
layer = processing.getobject(points())
features = processing.getfeatures(layer)
self.assertEqual(12, len(features))
def test_runandload(self):
processing.runandload("qgis:countpointsinpolygon",polygons(),points(),"NUMPOINTS", None)
layer = getObjectFromName("Result")
self.assertIsNotNone(layer)
def test_getobject(self):
layer = processing.getobject(points())
self.assertIsNotNone(layer)
layer = processing.getobject("points")
self.assertIsNotNone(layer)
def test_featuresWithoutSelection(self):
layer = processing.getObject(points())
features = processing.features(layer)
self.assertEqual(12, len(features))