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Add relation unit test
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# -*- coding: utf-8 -*- | ||
"""QGIS Unit tests for QgsVectorLayer. | ||
.. 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__ = 'Tim Sutton' | ||
__date__ = '20/08/2012' | ||
__copyright__ = 'Copyright 2012, The QGIS Project' | ||
# This will get replaced with a git SHA1 when you do a git archive | ||
__revision__ = '$Format:%H$' | ||
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import os | ||
import qgis | ||
from PyQt4.QtCore import QVariant, QObject, SIGNAL | ||
from PyQt4.QtGui import QPainter | ||
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from qgis.core import (QGis, | ||
QgsVectorLayer, | ||
QgsFeature, | ||
QgsRelation, | ||
QgsGeometry, | ||
QgsPoint, | ||
QgsMapLayerRegistry | ||
) | ||
from utilities import (unitTestDataPath, | ||
getQgisTestApp, | ||
TestCase, | ||
unittest, | ||
#expectedFailure | ||
) | ||
QGISAPP, CANVAS, IFACE, PARENT = getQgisTestApp() | ||
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def createReferencingLayer(): | ||
layer = QgsVectorLayer("Point?field=fldtxt:string&field=foreignkey:integer", | ||
"referencinglayer", "memory") | ||
pr = layer.dataProvider() | ||
f1 = QgsFeature() | ||
f1.setFields( layer.pendingFields() ) | ||
f1.setAttributes(["test1", 123]) | ||
f1.setGeometry(QgsGeometry.fromPoint(QgsPoint(100,200))) | ||
f2 = QgsFeature() | ||
f2.setFields( layer.pendingFields() ) | ||
f2.setAttributes(["test2", 123]) | ||
f2.setGeometry(QgsGeometry.fromPoint(QgsPoint(101,201))) | ||
assert pr.addFeatures([f1,f2]) | ||
return layer | ||
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def createReferencedLayer(): | ||
layer = QgsVectorLayer( | ||
"Point?field=x:string&field=y:integer&field=z:integer", | ||
"referencedlayer", "memory") | ||
pr = layer.dataProvider() | ||
f1 = QgsFeature() | ||
f1.setFields( layer.pendingFields() ) | ||
f1.setAttributes(["foo", 123, 321]) | ||
f1.setGeometry(QgsGeometry.fromPoint(QgsPoint(1,1))) | ||
f2 = QgsFeature() | ||
f2.setFields( layer.pendingFields() ) | ||
f2.setAttributes(["bar", 456, 654]) | ||
f2.setGeometry(QgsGeometry.fromPoint(QgsPoint(2,2))) | ||
f3 = QgsFeature() | ||
f3.setFields( layer.pendingFields() ) | ||
f3.setAttributes(["foobar", 789, 554]) | ||
f3.setGeometry(QgsGeometry.fromPoint(QgsPoint(2,3))) | ||
assert pr.addFeatures([f1, f2, f3]) | ||
return layer | ||
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def formatAttributes(attrs): | ||
return repr([ unicode(a) for a in attrs ]) | ||
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class TestQgsRelation( TestCase ): | ||
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def test_isValid(self): | ||
referencedLayer = createReferencedLayer() | ||
referencingLayer = createReferencingLayer() | ||
QgsMapLayerRegistry.instance().addMapLayers([referencedLayer,referencingLayer]) | ||
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rel = QgsRelation() | ||
assert not rel.isValid() | ||
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rel.setRelationId( 'rel1' ) | ||
assert not rel.isValid() | ||
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rel.setRelationName( 'Relation Number One' ) | ||
assert not rel.isValid() | ||
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rel.setReferencingLayer( referencingLayer.id() ) | ||
assert not rel.isValid() | ||
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rel.setReferencedLayer( referencedLayer.id() ) | ||
assert not rel.isValid() | ||
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rel.addFieldPair( 'foreignkey', 'y' ) | ||
assert rel.isValid() | ||
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QgsMapLayerRegistry.instance().removeAllMapLayers() | ||
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def test_getRelatedFeatures(self): | ||
referencedLayer = createReferencedLayer() | ||
referencingLayer = createReferencingLayer() | ||
QgsMapLayerRegistry.instance().addMapLayers([referencedLayer,referencingLayer]) | ||
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rel = QgsRelation() | ||
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rel.setRelationId( 'rel1' ) | ||
rel.setRelationName( 'Relation Number One' ) | ||
rel.setReferencingLayer( referencingLayer.id() ) | ||
rel.setReferencedLayer( referencedLayer.id() ) | ||
rel.addFieldPair( 'foreignkey', 'y' ) | ||
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feat = referencedLayer.getFeatures().next() | ||
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it = rel.getRelatedFeatures( feat ) | ||
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[ a.attributes() for a in it ] == [[u'test1', 123], [u'test2', 123]] | ||
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QgsMapLayerRegistry.instance().removeAllMapLayers() | ||
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if __name__ == '__main__': | ||
unittest.main() |