Flst_Laden, VerfGebiet bilden
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"""sn_verfahrensgebiet/tests/test_flurstueck_alkis.py
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Unit-Tests für das flurstueck_alkis-Modul.
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Getestet werden:
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- Nutzerabbruch bei ask_text → (None, LoadStatus.NONE)
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- Ungültiger WFS-Layer → (None, LoadStatus.NONE)
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- Erfolgreicher Ladevorgang → gültiger Layer + LoadStatus.FIRST
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- Bestehender Layer: Nutzer wählt "Neu laden" → LoadStatus.RELOAD
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- Bestehender Layer: Nutzer wählt "Behalten" → LoadStatus.KEEP
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"""
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import sys
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import types
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import unittest
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from unittest.mock import patch, MagicMock
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# ---------------------------------------------------------------------------
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# Minimales QGIS-Mock-Setup
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# ---------------------------------------------------------------------------
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if "qgis" not in sys.modules:
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qgis_mod = types.ModuleType("qgis")
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qgis_core = types.ModuleType("qgis.core")
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qgis_utils = types.ModuleType("qgis.utils")
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qgis_utils.iface = types.SimpleNamespace()
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qgis_utils.plugins = {}
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qgis_mod.utils = qgis_utils
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qgis_mod.core = qgis_core
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sys.modules["qgis"] = qgis_mod
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sys.modules["qgis.core"] = qgis_core
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sys.modules["qgis.utils"] = qgis_utils
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from sn_verfahrensgebiet.functions.flurstueck_alkis import flurstueck_alkis, FLST_LAYER_NAME
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from sn_verfahrensgebiet.functions.verfahrensgebiet_alkis import LoadStatus
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# ---------------------------------------------------------------------------
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# Dummies
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# ---------------------------------------------------------------------------
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class _DummyLayer:
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def __init__(self, valid: bool, layer_id="L1"):
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self._valid = valid
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self._id = layer_id
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def isValid(self):
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return self._valid
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def id(self):
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return self._id
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def extent(self):
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return object()
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class _DummyProject:
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def __init__(self, named_layers=None):
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self._named_layers = named_layers or []
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self.removed = []
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def mapLayersByName(self, name):
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return self._named_layers
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def removeMapLayer(self, lid):
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self.removed.append(lid)
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# ---------------------------------------------------------------------------
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# Tests
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# ---------------------------------------------------------------------------
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class TestFlurstueckAlkis(unittest.TestCase):
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# ------------------------------------------------------------------ #
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# 1. Nutzerabbruch (ask_text liefert ok=False / None) #
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# ------------------------------------------------------------------ #
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@patch("sn_verfahrensgebiet.functions.flurstueck_alkis.QMessageBox")
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@patch("sn_verfahrensgebiet.functions.flurstueck_alkis.QgsProject.instance")
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@patch("sn_verfahrensgebiet.functions.flurstueck_alkis.ask_text")
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def test_user_cancel_returns_none(self, mock_ask_text, mock_project, mock_msgbox):
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"""ask_text → ok=False, text="" → (None, NONE)."""
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mock_ask_text.return_value = ("", False)
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mock_project.return_value = _DummyProject()
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layer, status = flurstueck_alkis(None)
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self.assertIsNone(layer)
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self.assertEqual(status, LoadStatus.NONE)
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@patch("sn_verfahrensgebiet.functions.flurstueck_alkis.QMessageBox")
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@patch("sn_verfahrensgebiet.functions.flurstueck_alkis.QgsProject.instance")
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@patch("sn_verfahrensgebiet.functions.flurstueck_alkis.ask_text")
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def test_empty_text_after_confirmation_returns_none(self, mock_ask_text, mock_project, mock_msgbox):
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"""ask_text → ok=True, aber Text leer → (None, NONE)."""
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mock_ask_text.return_value = (" ", True)
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mock_project.return_value = _DummyProject()
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layer, status = flurstueck_alkis(None)
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self.assertIsNone(layer)
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self.assertEqual(status, LoadStatus.NONE)
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# ------------------------------------------------------------------ #
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# 2. Ungültiger WFS-Layer #
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# ------------------------------------------------------------------ #
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@patch("sn_verfahrensgebiet.functions.flurstueck_alkis.QMessageBox")
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@patch("sn_verfahrensgebiet.functions.flurstueck_alkis.QgsVectorLayer")
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@patch("sn_verfahrensgebiet.functions.flurstueck_alkis.QgsProject.instance")
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@patch("sn_verfahrensgebiet.functions.flurstueck_alkis.ask_text")
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def test_invalid_wfs_layer_returns_none(
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self, mock_ask_text, mock_project, mock_wfs_layer_cls, mock_msgbox
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):
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"""WFS-Layer nicht valide → (None, NONE)."""
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mock_ask_text.return_value = ("1234", True)
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mock_project.return_value = _DummyProject()
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mock_wfs_layer_cls.return_value = _DummyLayer(valid=False)
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layer, status = flurstueck_alkis(None)
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self.assertIsNone(layer)
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self.assertEqual(status, LoadStatus.NONE)
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# ------------------------------------------------------------------ #
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# 3. Erfolgreicher Erstladevorgang #
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# ------------------------------------------------------------------ #
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@patch("sn_verfahrensgebiet.functions.flurstueck_alkis.QgsVectorLayer")
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@patch("sn_verfahrensgebiet.functions.flurstueck_alkis.QgsProject.instance")
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@patch("sn_verfahrensgebiet.functions.flurstueck_alkis.ask_text")
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def test_success_returns_layer_and_first_status(
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self, mock_ask_text, mock_project, mock_wfs_layer_cls
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):
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"""Kein bestehender Layer, WFS valide → (layer, FIRST)."""
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mock_ask_text.return_value = ("1234, 5678", True)
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mock_project.return_value = _DummyProject()
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valid_layer = _DummyLayer(valid=True, layer_id="wfs_ok")
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mock_wfs_layer_cls.return_value = valid_layer
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layer, status = flurstueck_alkis(None)
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self.assertIs(layer, valid_layer)
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self.assertEqual(status, LoadStatus.FIRST)
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@patch("sn_verfahrensgebiet.functions.flurstueck_alkis.QgsVectorLayer")
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@patch("sn_verfahrensgebiet.functions.flurstueck_alkis.QgsProject.instance")
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@patch("sn_verfahrensgebiet.functions.flurstueck_alkis.ask_text")
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def test_sql_filter_contains_all_schluessel(
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self, mock_ask_text, mock_project, mock_wfs_layer_cls
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):
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"""Der WFS-URI enthält alle eingegebenen Gemarkungsschlüssel."""
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mock_ask_text.return_value = ("1111, 2222, 3333", True)
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mock_project.return_value = _DummyProject()
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mock_wfs_layer_cls.return_value = _DummyLayer(valid=True)
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flurstueck_alkis(None)
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# Erster Positionsarg von QgsVectorLayer ist der URI-String
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call_args = mock_wfs_layer_cls.call_args
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uri_str = call_args[0][0] if call_args[0] else call_args[1].get("path", "")
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self.assertIn("1111", uri_str)
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self.assertIn("2222", uri_str)
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self.assertIn("3333", uri_str)
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# ------------------------------------------------------------------ #
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# 4. Bestehender Layer – Nutzer wählt "Neu laden" #
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# ------------------------------------------------------------------ #
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@patch("sn_verfahrensgebiet.functions.flurstueck_alkis.QgsVectorLayer")
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@patch("sn_verfahrensgebiet.functions.flurstueck_alkis.QMessageBox")
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@patch("sn_verfahrensgebiet.functions.flurstueck_alkis.QgsProject.instance")
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@patch("sn_verfahrensgebiet.functions.flurstueck_alkis.ask_text")
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def test_existing_layer_reload_yes(
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self, mock_ask_text, mock_project, mock_msgbox_cls, mock_wfs_layer_cls
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):
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"""Bestehender Layer + Nutzer: 'Ja, neu laden' → LoadStatus.RELOAD."""
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existing = _DummyLayer(valid=True, layer_id="old_flst")
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project = _DummyProject(named_layers=[existing])
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mock_ask_text.return_value = ("1234", True)
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mock_project.return_value = project
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# StandardButton als int, damit | Operator funktioniert
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mock_msgbox_cls.StandardButton.Yes = 0x4000
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mock_msgbox_cls.StandardButton.No = 0x10000
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# QMessageBox.question → Yes
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mock_msgbox_cls.question.return_value = 0x4000
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new_layer = _DummyLayer(valid=True, layer_id="new_flst")
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mock_wfs_layer_cls.return_value = new_layer
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layer, status = flurstueck_alkis(None)
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self.assertIn(existing.id(), project.removed)
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self.assertIs(layer, new_layer)
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self.assertEqual(status, LoadStatus.RELOAD)
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# ------------------------------------------------------------------ #
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# 5. Bestehender Layer – Nutzer wählt "Behalten" #
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# ------------------------------------------------------------------ #
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@patch("sn_verfahrensgebiet.functions.flurstueck_alkis.QMessageBox")
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@patch("sn_verfahrensgebiet.functions.flurstueck_alkis.QgsProject.instance")
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@patch("sn_verfahrensgebiet.functions.flurstueck_alkis.ask_text")
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def test_existing_layer_keep_no(
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self, mock_ask_text, mock_project, mock_msgbox_cls
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):
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"""Bestehender Layer + Nutzer: 'Nein, behalten' → LoadStatus.KEEP."""
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existing = _DummyLayer(valid=True, layer_id="keep_flst")
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project = _DummyProject(named_layers=[existing])
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mock_ask_text.return_value = ("1234", True)
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mock_project.return_value = project
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# StandardButton als int, damit | Operator funktioniert
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mock_msgbox_cls.StandardButton.Yes = 0x4000
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mock_msgbox_cls.StandardButton.No = 0x10000
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# QMessageBox.question → No
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mock_msgbox_cls.question.return_value = 0x10000
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layer, status = flurstueck_alkis(None)
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self.assertIs(layer, existing)
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self.assertEqual(status, LoadStatus.KEEP)
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self.assertEqual(project.removed, []) # nichts gelöscht
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if __name__ == "__main__":
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unittest.main()
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