Example #1
0
    def testTakeLayer(self):
        # test taking ownership of a layer from the project
        l1 = createLayer('l1')
        l2 = createLayer('l2')
        p = QgsProject()

        # add one layer to project
        p.addMapLayer(l1)
        self.assertEqual(p.mapLayers(), {l1.id(): l1})
        self.assertEqual(l1.parent().parent(), p)

        # try taking some layers which don't exist in project
        self.assertFalse(p.takeMapLayer(None))
        self.assertFalse(p.takeMapLayer(l2))
        # but l2 should still exist..
        self.assertTrue(l2.isValid())

        # take layer from project
        self.assertEqual(p.takeMapLayer(l1), l1)
        self.assertFalse(p.mapLayers())  # no layers left
        # but l1 should still exist
        self.assertTrue(l1.isValid())
        # layer should have no parent now
        self.assertFalse(l1.parent())

        # destroy project
        p = None
        self.assertTrue(l1.isValid())
Example #2
0
    def testTakeLayer(self):
        # test taking ownership of a layer from the project
        l1 = createLayer('l1')
        l2 = createLayer('l2')
        p = QgsProject()

        # add one layer to project
        p.addMapLayer(l1)
        self.assertEqual(p.mapLayers(), {l1.id(): l1})
        self.assertEqual(l1.parent().parent(), p)

        # try taking some layers which don't exist in project
        self.assertFalse(p.takeMapLayer(None))
        self.assertFalse(p.takeMapLayer(l2))
        # but l2 should still exist..
        self.assertTrue(l2.isValid())

        # take layer from project
        self.assertEqual(p.takeMapLayer(l1), l1)
        self.assertFalse(p.mapLayers()) # no layers left
        # but l1 should still exist
        self.assertTrue(l1.isValid())
        # layer should have no parent now
        self.assertFalse(l1.parent())

        # destroy project
        p = None
        self.assertTrue(l1.isValid())