QGIS/python/plugins/processing/tests/ScriptTest.py

# -*- coding: utf-8 -*-

"""
***************************************************************************
    ScriptTest.py
    ---------------------
    Date                 : March 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__ = 'March 2013'
__copyright__ = '(C) 2013, Victor Olaya'

# This will get replaced with a git SHA1 when you do a git archive

__revision__ = '$Format:%H$'

import unittest
import processing
from processing.tools import dataobjects

from processing.tests.TestData import polygons, union


class ScriptTest(unittest.TestCase):

    """Tests that use scripts."""

    def test_scriptcreatetilingfromvectorlayer(self):
        outputs = processing.runalg('script:createtilingfromvectorlayer',
                                    union(), 10, None)
        output = outputs['polygons']
        layer = dataobjects.getObjectFromUri(output, True)
        fields = layer.pendingFields()
        expectednames = ['longitude', 'latitude']
        expectedtypes = ['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(10, len(features))
        feature = features.next()
        attrs = feature.attributes()
        expectedvalues = ['270761.415396242', '4458948.29588823']
        values = [unicode(attr) for attr in attrs]
        self.assertEqual(expectedvalues, values)
        wkt = 'POLYGON((270755.54427424 4458901.23378639,270755.54427424 4458995.35799007,270767.28651824 4458995.35799007,270767.28651824 4458901.23378639,270755.54427424 4458901.23378639))'
        self.assertEqual(wkt, unicode(feature.geometry().exportToWkt()))

    def test_scripthexgridfromlayerbounds(self):
        outputs = processing.runalg('script:hexgridfromlayerbounds',
                                    polygons(), 10, None)
        output = outputs['grid']
        layer = dataobjects.getObjectFromUri(output, True)
        fields = layer.pendingFields()
        expectednames = ['longitude', 'latitude']
        expectedtypes = ['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(117, len(features))
        feature = features.next()
        attrs = feature.attributes()
        expectedvalues = ['270765.621834001', '4458907.27146471']
        values = [unicode(attr) for attr in attrs]
        self.assertEqual(expectedvalues, values)
        wkt = 'POLYGON((270771.39533669 4458907.27146471,270768.50858535 4458902.27146471,270762.73508265 4458902.27146471,270759.84833131 4458907.27146471,270762.73508265 4458912.27146471,270768.50858535 4458912.27146471,270771.39533669 4458907.27146471))'
        self.assertEqual(wkt, unicode(feature.geometry().exportToWkt()))

    def test_scriptascriptthatreturnsanumber(self):
        outputs = processing.runalg('script:ascriptthatreturnsanumber')
        output = outputs['number']
        self.assertTrue(10, output)


def suite():
    suite = unittest.makeSuite(ScriptTest, 'test')
    return suite


def runtests():
    result = unittest.TestResult()
    testsuite = suite()
    testsuite.run(result)
    return result