[Qgis-developer] How to write tests for Processing scripts?

[Anita Graser]

​Hi,

I'm trying to write tests for Processing scripts but  I'm stuck because
runalg() throws "Error: Algorithm not found".  Alglist() also seems unable
to find algorithms from my user script while it manages to find SAGA, GRASS
and co.

Am I missing something or is this a bug?

Code so far is:


import os, sys, glob
import unittest
import numpy as np

# Prepare the environment
from qgis.core import * # qgis.core must be imported before PyQt4.QtGui!!!
from PyQt4.QtGui import *
app = QApplication([])
QgsApplication.setPrefixPath("C:\\OSGeo4W64\\apps\\qgis",True)
QgsApplication.initQgis()

# Prepare processing framework
sys.path.append( "C:\\OSGeo4W64\\apps\\qgis\\python\\plugins" )
from processing.core.Processing import Processing
from processing import runalg, alglist

class TestMorans(unittest.TestCase):
    def test_morans(self):
        Processing.initialize()
        np.random.seed(12345)
        alglist('moran')
        result =
runalg("script:morans","C:/Users/anita_000/Documents/GitHub/QGIS-Processing-tools/test/data/stl_hom.shp","HR8893","rook")
        i = result['i']
        self.assertEqual(i,0.24365582621771659)

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


Thanks and best wishes,
Anita
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