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03bfe9bfbc
Timestamps can result in duplicate layer ids when layers are created rapidly or in different threads. Fix #14390
94 lines
3.4 KiB
Python
94 lines
3.4 KiB
Python
# -*- coding: utf-8 -*-
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"""QGIS Unit tests for QgsMapLayer
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.. note:: This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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"""
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__author__ = 'Nyall Dawson'
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__date__ = '1/02/2017'
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__copyright__ = 'Copyright 2017, The QGIS Project'
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# This will get replaced with a git SHA1 when you do a git archive
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__revision__ = '$Format:%H$'
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import qgis # NOQA
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from qgis.core import (QgsReadWriteContext,
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QgsVectorLayer,
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QgsProject)
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from qgis.testing import start_app, unittest
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from qgis.PyQt.QtXml import QDomDocument
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start_app()
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class TestQgsMapLayer(unittest.TestCase):
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def testUniqueId(self):
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"""
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Test that layers created quickly with same name get a unique ID
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"""
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# make 1000 layers quickly
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layers = []
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for i in range(1000):
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layer = QgsVectorLayer(
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'Point?crs=epsg:4326&field=name:string(20)',
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'test',
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'memory')
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layers.append(layer)
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# make sure all ids are unique
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ids = set()
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for l in layers:
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self.assertFalse(l.id() in ids)
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ids.add(l.id())
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def copyLayerViaXmlReadWrite(self, source, dest):
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# write to xml
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doc = QDomDocument("testdoc")
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elem = doc.createElement("maplayer")
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self.assertTrue(source.writeLayerXml(elem, doc, QgsReadWriteContext()))
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self.assertTrue(dest.readLayerXml(elem, QgsReadWriteContext()), QgsProject.instance())
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def testGettersSetters(self):
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# test auto refresh getters/setters
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layer = QgsVectorLayer("Point?field=fldtxt:string",
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"layer", "memory")
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self.assertFalse(layer.hasAutoRefreshEnabled())
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self.assertEqual(layer.autoRefreshInterval(), 0)
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layer.setAutoRefreshInterval(5)
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self.assertFalse(layer.hasAutoRefreshEnabled())
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self.assertEqual(layer.autoRefreshInterval(), 5)
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layer.setAutoRefreshEnabled(True)
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self.assertTrue(layer.hasAutoRefreshEnabled())
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self.assertEqual(layer.autoRefreshInterval(), 5)
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layer.setAutoRefreshInterval(0) # should disable auto refresh
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self.assertFalse(layer.hasAutoRefreshEnabled())
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self.assertEqual(layer.autoRefreshInterval(), 0)
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def testSaveRestoreAutoRefresh(self):
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""" test saving/restoring auto refresh to xml """
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layer = QgsVectorLayer("Point?field=fldtxt:string",
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"layer", "memory")
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layer2 = QgsVectorLayer("Point?field=fldtxt:string",
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"layer", "memory")
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self.copyLayerViaXmlReadWrite(layer, layer2)
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self.assertFalse(layer2.hasAutoRefreshEnabled())
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self.assertEqual(layer2.autoRefreshInterval(), 0)
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layer.setAutoRefreshInterval(56)
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self.copyLayerViaXmlReadWrite(layer, layer2)
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self.assertFalse(layer2.hasAutoRefreshEnabled())
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self.assertEqual(layer2.autoRefreshInterval(), 56)
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layer.setAutoRefreshEnabled(True)
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self.copyLayerViaXmlReadWrite(layer, layer2)
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self.assertTrue(layer2.hasAutoRefreshEnabled())
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self.assertEqual(layer2.autoRefreshInterval(), 56)
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if __name__ == '__main__':
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unittest.main()
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