Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Add some unit tests for QgsExpressionBuilderWidget
- Loading branch information
1 parent
878ee5c
commit e79bf3f
Showing
5 changed files
with
179 additions
and
0 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,158 @@ | ||
| # -*- coding: utf-8 -*- | ||
| """QGIS Unit tests for QgsExpressionBuilderWidget | ||
| .. 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__ = '30/07/2017' | ||
| __copyright__ = 'Copyright 2017, The QGIS Project' | ||
| # This will get replaced with a git SHA1 when you do a git archive | ||
| __revision__ = '$Format:%H$' | ||
|
|
||
| import qgis # NOQA | ||
|
|
||
| from qgis.PyQt.QtCore import Qt | ||
| from qgis.testing import start_app, unittest | ||
| from qgis.gui import QgsExpressionBuilderWidget | ||
| from qgis.core import (QgsExpressionContext, | ||
| QgsExpressionContextScope, | ||
| QgsProject, | ||
| QgsVectorLayer, | ||
| QgsRelation, | ||
| QgsFeature, | ||
| QgsGeometry) | ||
| start_app() | ||
|
|
||
|
|
||
| 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]) | ||
| f2 = QgsFeature() | ||
| f2.setFields(layer.pendingFields()) | ||
| f2.setAttributes(["test2", 123]) | ||
| f3 = QgsFeature() | ||
| f3.setFields(layer.pendingFields()) | ||
| f3.setAttributes(["foobar'bar", 124]) | ||
| assert pr.addFeatures([f1, f2, f3]) | ||
| return layer | ||
|
|
||
|
|
||
| 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]) | ||
| f2 = QgsFeature() | ||
| f2.setFields(layer.pendingFields()) | ||
| f2.setAttributes(["bar", 456, 654]) | ||
| f3 = QgsFeature() | ||
| f3.setFields(layer.pendingFields()) | ||
| f3.setAttributes(["foobar'bar", 789, 554]) | ||
| assert pr.addFeatures([f1, f2, f3]) | ||
| return layer | ||
|
|
||
|
|
||
| class TestQgsExpressionBuilderWidget(unittest.TestCase): | ||
|
|
||
| def setUp(self): | ||
| self.referencedLayer = createReferencedLayer() | ||
| self.referencingLayer = createReferencingLayer() | ||
| QgsProject.instance().addMapLayers([self.referencedLayer, self.referencingLayer]) | ||
|
|
||
| def testFunctionPresent(self): | ||
| """ check through widget model to ensure it is initially populated with functions """ | ||
| w = QgsExpressionBuilderWidget() | ||
| m = w.model() | ||
| # check that some standard expression functions are shown | ||
| items = m.findItems('lower', Qt.MatchRecursive) | ||
| self.assertEqual(len(items), 1) | ||
| items = m.findItems('upper', Qt.MatchRecursive) | ||
| self.assertEqual(len(items), 1) | ||
| items = m.findItems('asdasdasda#$@#$', Qt.MatchRecursive) | ||
| self.assertEqual(len(items), 0) | ||
|
|
||
| def testVariables(self): | ||
| """ check through widget model to ensure it is populated with variables """ | ||
| w = QgsExpressionBuilderWidget() | ||
| m = w.model() | ||
|
|
||
| s = QgsExpressionContextScope() | ||
| s.setVariable('my_var1', 'x') | ||
| s.setVariable('my_var2', 'y') | ||
| c = QgsExpressionContext() | ||
| c.appendScope(s) | ||
|
|
||
| # check that variables are added when setting context | ||
| w.setExpressionContext(c) | ||
| items = m.findItems('my_var1', Qt.MatchRecursive) | ||
| self.assertEqual(len(items), 1) | ||
| items = m.findItems('my_var2', Qt.MatchRecursive) | ||
| self.assertEqual(len(items), 1) | ||
| items = m.findItems('not_my_var', Qt.MatchRecursive) | ||
| self.assertEqual(len(items), 0) | ||
| # double check that functions are still only there once | ||
| items = m.findItems('lower', Qt.MatchRecursive) | ||
| self.assertEqual(len(items), 1) | ||
| items = m.findItems('upper', Qt.MatchRecursive) | ||
| self.assertEqual(len(items), 1) | ||
|
|
||
| def testLayers(self): | ||
| """ check that layers are shown in widget model""" | ||
| p = QgsProject.instance() | ||
| layer = QgsVectorLayer("Point", "layer1", "memory") | ||
| layer2 = QgsVectorLayer("Point", "layer2", "memory") | ||
| p.addMapLayers([layer, layer2]) | ||
|
|
||
| w = QgsExpressionBuilderWidget() | ||
| m = w.model() | ||
|
|
||
| # check that layers are shown | ||
| items = m.findItems('layer1', Qt.MatchRecursive) | ||
| self.assertEqual(len(items), 1) | ||
| items = m.findItems('layer2', Qt.MatchRecursive) | ||
| self.assertEqual(len(items), 1) | ||
|
|
||
| def testRelations(self): | ||
| """ check that layers are shown in widget model""" | ||
| p = QgsProject.instance() | ||
|
|
||
| # not valid, but doesn't matter for test.... | ||
| rel = QgsRelation() | ||
| rel.setId('rel1') | ||
| rel.setName('Relation Number One') | ||
| rel.setReferencingLayer(self.referencingLayer.id()) | ||
| rel.setReferencedLayer(self.referencedLayer.id()) | ||
| rel.addFieldPair('foreignkey', 'y') | ||
|
|
||
| rel2 = QgsRelation() | ||
| rel2.setId('rel2') | ||
| rel2.setName('Relation Number Two') | ||
| rel2.setReferencingLayer(self.referencingLayer.id()) | ||
| rel2.setReferencedLayer(self.referencedLayer.id()) | ||
| rel2.addFieldPair('foreignkey', 'y') | ||
|
|
||
| p.relationManager().addRelation(rel) | ||
| p.relationManager().addRelation(rel2) | ||
|
|
||
| w = QgsExpressionBuilderWidget() | ||
| m = w.model() | ||
|
|
||
| # check that relations are shown | ||
| items = m.findItems('Relation Number One', Qt.MatchRecursive) | ||
| self.assertEqual(len(items), 1) | ||
| items = m.findItems('Relation Number Two', Qt.MatchRecursive) | ||
| self.assertEqual(len(items), 1) | ||
|
|
||
|
|
||
| if __name__ == '__main__': | ||
| unittest.main() |