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test_qgscategorizedsymbolrendererv2.py
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test_qgscategorizedsymbolrendererv2.py
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# -*- coding: utf-8 -*-
"""QGIS Unit tests for QgsCategorizedSymbolRendererV2
.. 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__ = 'Nyall Dawson'
__date__ = '2/12/2015'
__copyright__ = 'Copyright 2015, The QGIS Project'
# This will get replaced with a git SHA1 when you do a git archive
__revision__ = '$Format:%H$'
import qgis
from qgis.testing import (unittest,
start_app,
)
from qgis.core import (QgsCategorizedSymbolRendererV2,
QgsRendererCategoryV2,
QgsMarkerSymbolV2,
QgsVectorGradientColorRampV2,
QgsVectorLayer,
QgsFeature,
QgsGeometry,
QgsPoint,
QgsSymbolV2,
QgsSymbolLayerV2Utils,
QgsRenderContext,
QgsField,
QgsFields
)
from PyQt4.QtCore import Qt, QVariant
from PyQt4.QtXml import QDomDocument
from PyQt4.QtGui import QColor
start_app()
def createMarkerSymbol():
symbol = QgsMarkerSymbolV2.createSimple({
"color": "100,150,50",
"name": "square",
"size": "3.0"
})
return symbol
class TestQgsCategorizedSymbolRendererV2(unittest.TestCase):
def testFilter(self):
"""Test filter creation"""
renderer = QgsCategorizedSymbolRendererV2()
renderer.setClassAttribute('field')
renderer.addCategory(QgsRendererCategoryV2('a', createMarkerSymbol(), 'a'))
renderer.addCategory(QgsRendererCategoryV2('b', createMarkerSymbol(), 'b'))
renderer.addCategory(QgsRendererCategoryV2('c', createMarkerSymbol(), 'c'))
# add default category
renderer.addCategory(QgsRendererCategoryV2('', createMarkerSymbol(), 'default'))
fields = QgsFields()
fields.append(QgsField('field', QVariant.String))
fields.append(QgsField('num', QVariant.Double))
self.assertEqual(renderer.filter(fields), '')
# remove categories, leaving default
assert renderer.updateCategoryRenderState(0, False)
self.assertEqual(renderer.filter(fields), "(\"field\") NOT IN ('a') OR (\"field\") IS NULL")
assert renderer.updateCategoryRenderState(1, False)
self.assertEqual(renderer.filter(fields), "(\"field\") NOT IN ('a','b') OR (\"field\") IS NULL")
assert renderer.updateCategoryRenderState(2, False)
self.assertEqual(renderer.filter(fields), "(\"field\") NOT IN ('a','b','c') OR (\"field\") IS NULL")
# remove default category
assert renderer.updateCategoryRenderState(3, False)
self.assertEqual(renderer.filter(fields), "FALSE")
# add back other categories, leaving default disabled
assert renderer.updateCategoryRenderState(0, True)
self.assertEqual(renderer.filter(fields), "(\"field\") IN ('a')")
assert renderer.updateCategoryRenderState(1, True)
self.assertEqual(renderer.filter(fields), "(\"field\") IN ('a','b')")
assert renderer.updateCategoryRenderState(2, True)
self.assertEqual(renderer.filter(fields), "(\"field\") IN ('a','b','c')")
renderer.deleteAllCategories()
# just default category
renderer.addCategory(QgsRendererCategoryV2('', createMarkerSymbol(), 'default'))
self.assertEqual(renderer.filter(fields), '')
assert renderer.updateCategoryRenderState(0, False)
self.assertEqual(renderer.filter(fields), 'FALSE')
renderer.deleteAllCategories()
# no default category
renderer.addCategory(QgsRendererCategoryV2('a', createMarkerSymbol(), 'a'))
renderer.addCategory(QgsRendererCategoryV2('b', createMarkerSymbol(), 'b'))
renderer.addCategory(QgsRendererCategoryV2('c', createMarkerSymbol(), 'c'))
self.assertEqual(renderer.filter(fields), "(\"field\") IN ('a','b','c')")
assert renderer.updateCategoryRenderState(0, False)
self.assertEqual(renderer.filter(fields), "(\"field\") IN ('b','c')")
assert renderer.updateCategoryRenderState(2, False)
self.assertEqual(renderer.filter(fields), "(\"field\") IN ('b')")
assert renderer.updateCategoryRenderState(1, False)
self.assertEqual(renderer.filter(fields), "FALSE")
renderer.deleteAllCategories()
renderer.setClassAttribute('num')
# numeric categories
renderer.addCategory(QgsRendererCategoryV2(1, createMarkerSymbol(), 'a'))
renderer.addCategory(QgsRendererCategoryV2(2, createMarkerSymbol(), 'b'))
renderer.addCategory(QgsRendererCategoryV2(3, createMarkerSymbol(), 'c'))
self.assertEqual(renderer.filter(fields), '(\"num\") IN (1,2,3)')
assert renderer.updateCategoryRenderState(0, False)
self.assertEqual(renderer.filter(fields), "(\"num\") IN (2,3)")
assert renderer.updateCategoryRenderState(2, False)
self.assertEqual(renderer.filter(fields), "(\"num\") IN (2)")
assert renderer.updateCategoryRenderState(1, False)
self.assertEqual(renderer.filter(fields), "FALSE")
def testFilterExpression(self):
"""Test filter creation with expression"""
renderer = QgsCategorizedSymbolRendererV2()
renderer.setClassAttribute('field + field2')
renderer.addCategory(QgsRendererCategoryV2('a', createMarkerSymbol(), 'a'))
renderer.addCategory(QgsRendererCategoryV2('b', createMarkerSymbol(), 'b'))
renderer.addCategory(QgsRendererCategoryV2('c', createMarkerSymbol(), 'c'))
# add default category
renderer.addCategory(QgsRendererCategoryV2('', createMarkerSymbol(), 'default'))
fields = QgsFields()
fields.append(QgsField('field', QVariant.String))
self.assertEqual(renderer.filter(fields), '')
# remove categories, leaving default
assert renderer.updateCategoryRenderState(0, False)
self.assertEqual(renderer.filter(fields), "(field + field2) NOT IN ('a') OR (field + field2) IS NULL")
assert renderer.updateCategoryRenderState(1, False)
self.assertEqual(renderer.filter(fields), "(field + field2) NOT IN ('a','b') OR (field + field2) IS NULL")
assert renderer.updateCategoryRenderState(2, False)
self.assertEqual(renderer.filter(fields), "(field + field2) NOT IN ('a','b','c') OR (field + field2) IS NULL")
# remove default category
assert renderer.updateCategoryRenderState(3, False)
self.assertEqual(renderer.filter(fields), "FALSE")
# add back other categories, leaving default disabled
assert renderer.updateCategoryRenderState(0, True)
self.assertEqual(renderer.filter(fields), "(field + field2) IN ('a')")
assert renderer.updateCategoryRenderState(1, True)
self.assertEqual(renderer.filter(fields), "(field + field2) IN ('a','b')")
assert renderer.updateCategoryRenderState(2, True)
self.assertEqual(renderer.filter(fields), "(field + field2) IN ('a','b','c')")
renderer.deleteAllCategories()
# just default category
renderer.addCategory(QgsRendererCategoryV2('', createMarkerSymbol(), 'default'))
self.assertEqual(renderer.filter(fields), '')
assert renderer.updateCategoryRenderState(0, False)
self.assertEqual(renderer.filter(fields), 'FALSE')
renderer.deleteAllCategories()
# no default category
renderer.addCategory(QgsRendererCategoryV2('a', createMarkerSymbol(), 'a'))
renderer.addCategory(QgsRendererCategoryV2('b', createMarkerSymbol(), 'b'))
renderer.addCategory(QgsRendererCategoryV2('c', createMarkerSymbol(), 'c'))
self.assertEqual(renderer.filter(fields), "(field + field2) IN ('a','b','c')")
assert renderer.updateCategoryRenderState(0, False)
self.assertEqual(renderer.filter(fields), "(field + field2) IN ('b','c')")
assert renderer.updateCategoryRenderState(2, False)
self.assertEqual(renderer.filter(fields), "(field + field2) IN ('b')")
assert renderer.updateCategoryRenderState(1, False)
self.assertEqual(renderer.filter(fields), "FALSE")
renderer.deleteAllCategories()
# numeric categories
renderer.addCategory(QgsRendererCategoryV2(1, createMarkerSymbol(), 'a'))
renderer.addCategory(QgsRendererCategoryV2(2, createMarkerSymbol(), 'b'))
renderer.addCategory(QgsRendererCategoryV2(3, createMarkerSymbol(), 'c'))
self.assertEqual(renderer.filter(fields), '(field + field2) IN (1,2,3)')
assert renderer.updateCategoryRenderState(0, False)
self.assertEqual(renderer.filter(fields), "(field + field2) IN (2,3)")
assert renderer.updateCategoryRenderState(2, False)
self.assertEqual(renderer.filter(fields), "(field + field2) IN (2)")
assert renderer.updateCategoryRenderState(1, False)
self.assertEqual(renderer.filter(fields), "FALSE")
if __name__ == "__main__":
unittest.main()