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"""
***************************************************************************
QgisAlgorithmTests.py
---------------------
Date : January 2016
Copyright : (C) 2016 by Matthias Kuhn
Email : matthias@opengis.ch
***************************************************************************
* *
* 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__ = "Matthias Kuhn"
__date__ = "January 2016"
__copyright__ = "(C) 2016, Matthias Kuhn"
import AlgorithmsTestBase
import nose2
import shutil
import os
from qgis.core import (
QgsApplication,
QgsProcessingAlgorithm,
QgsProcessingFeedback,
QgsProcessingException,
)
from qgis.analysis import QgsNativeAlgorithms
import unittest
from qgis.testing import start_app, QgisTestCase
from processing.tools.dataobjects import createContext
from processing.core.ProcessingConfig import ProcessingConfig
from processing.modeler.ModelerUtils import ModelerUtils
class TestAlg(QgsProcessingAlgorithm):
def __init__(self):
super().__init__()
def name(self):
return "testalg"
def displayName(self):
return "testalg"
def initAlgorithm(self, config=None):
pass
def createInstance(self):
return TestAlg()
def processAlgorithm(self, parameters, context, feedback):
raise QgsProcessingException("Exception while processing")
return {}
class TestQgisAlgorithms(QgisTestCase, AlgorithmsTestBase.AlgorithmsTest):
@classmethod
def setUpClass(cls):
start_app()
from processing.core.Processing import Processing
Processing.initialize()
cls.cleanup_paths = []
cls.in_place_layers = {}
cls.vector_layer_params = {}
@classmethod
def tearDownClass(cls):
from processing.core.Processing import Processing
Processing.deinitialize()
for path in cls.cleanup_paths:
shutil.rmtree(path)
def definition_file(self):
return "qgis_algorithm_tests1.yaml"
def testProcessingException(self):
"""
Test that Python exception is caught when running an alg
"""
alg = TestAlg()
context = createContext()
feedback = QgsProcessingFeedback()
results, ok = alg.run({}, context, feedback)
self.assertFalse(ok)
def testParameterPythonImport(self):
for t in QgsApplication.processingRegistry().parameterTypes():
import_string = t.pythonImportString()
# check that pythonImportString correctly imports
# and that we can instantiate an object!
if t.className() == "QgsProcessingParameterProviderConnection":
exec(
f"{import_string}\ntest = {t.className()}('id','name', 'provider')\nassert test is not None",
{},
)
else:
exec(
f"{import_string}\ntest = {t.className()}('id','name')\nassert test is not None"
), {}
if __name__ == "__main__":
nose2.main()
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