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Initial test for in-place processing algorithms

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elpaso authored and nyalldawson committed Sep 14, 2018
1 parent db98a38 commit 4acb34fa925e8486ee558dc4849d490258fe32be
Showing with 78 additions and 0 deletions.
  1. +78 −0 tests/src/python/test_qgsprocessinginplace.py
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# -*- coding: utf-8 -*-
"""QGIS Unit tests for Processing In-Place algorithms.
.. note:: 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__ = 'Alessandro Pasotti'
__date__ = '2018-09'
__copyright__ = 'Copyright 2018, The QGIS Project'
# This will get replaced with a git SHA1 when you do a git archive
__revision__ = '$Format:%H$'

from qgis.PyQt.QtCore import QCoreApplication, QVariant
from qgis.core import QgsFeature, QgsGeometry, QgsSettings, QgsApplication, QgsMemoryProviderUtils, QgsWkbTypes, QgsField, QgsFields, QgsProcessingFeatureSourceDefinition, QgsProcessingContext, QgsProcessingFeedback
from processing.core.Processing import Processing
from qgis.testing import start_app, unittest
from qgis.PyQt.QtTest import QSignalSpy
from qgis.analysis import QgsNativeAlgorithms

start_app()


class TestQgsProcessingRecentAlgorithmLog(unittest.TestCase):

@classmethod
def setUpClass(cls):
"""Run before all tests"""
QCoreApplication.setOrganizationName("QGIS_Test")
QCoreApplication.setOrganizationDomain(
"QGIS_TestPyQgsProcessingInPlace.com")
QCoreApplication.setApplicationName("QGIS_TestPyQgsProcessingInPlace")
QgsSettings().clear()
Processing.initialize()
QgsApplication.processingRegistry().addProvider(QgsNativeAlgorithms())
cls.registry = QgsApplication.instance().processingRegistry()
fields = QgsFields()
fields.append(QgsField('int_f', QVariant.Int))
cls.vl = QgsMemoryProviderUtils.createMemoryLayer(
'mylayer', fields, QgsWkbTypes.Point)

f1 = QgsFeature(cls.vl.fields())
f1['int_f'] = 1
f1.setGeometry(QgsGeometry.fromWkt('point(9 45)'))
f2 = QgsFeature(cls.vl.fields())
f2['int_f'] = 2
f2.setGeometry(QgsGeometry.fromWkt('point(9.5 45.6)'))
cls.vl.dataProvider().addFeatures([f1, f2])

assert cls.vl.isValid()
assert cls.vl.featureCount() == 2

def test_algs(self):
# Clone?
alg = self.registry.algorithmById('native:translategeometry')
self.assertIsNotNone(alg)
parameters = {}
parameters['INPUT'] = QgsProcessingFeatureSourceDefinition(self.vl.id(), True)
parameters['OUTPUT'] = 'memory:'

context = QgsProcessingContext()
feedback = QgsProcessingFeedback()
self.assertTrue(alg.prepare(parameters, context, feedback))

for f in self.vl.getFeatures():
new_f = alg.processFeature(f, context, feedback)[0]
self.assertEqual(new_f.id(), f.id())

from IPython import embed; embed()






if __name__ == '__main__':
unittest.main()

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