diff --git a/.gitignore b/.gitignore
index 8b079be..bc54ace 100644
--- a/.gitignore
+++ b/.gitignore
@@ -43,6 +43,16 @@ test/*.gpkg
 coverage.xml
 htmlcov/
 
+# === Testdaten: Sidecar-Dateien, die QGIS/GDAL beim Lesen selbst anlegt ===
+# Testdaten/ selbst ist bewusst eingecheckt (siehe docs/test-strategy.md),
+# aber diese Dateien entstehen erst beim Testlauf und gehoeren nicht ins Repo.
+*.qix
+*.shp.xml
+Testdaten/**/*.gpkg
+
+# Ablage fuer aussortierte Testdaten, die noch nicht geloescht wurden.
+_to_delete/
+
 # === QGIS Plugin generierte Dateien ===
 # Kompilierte Übersetzungen (*.qm) sind Build-Artefakte aus i18n/*.ts.
 # resources.py wird bewusst NICHT ignoriert - siehe Hinweis unten.
diff --git "a/Testdaten/ALKIS Geb\303\244ude/GebauedeBauwerk.dbf" "b/Testdaten/ALKIS Geb\303\244ude/GebauedeBauwerk.dbf"
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deleted file mode 100644
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--- a/Testdaten/ATKIS Basis DLM dataset/geb01_f.cpg	
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\ No newline at end of file
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deleted file mode 100644
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+++ /dev/null
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-PROJCS["ETRS_1989_UTM_Zone_33N",GEOGCS["GCS_ETRS_1989",DATUM["D_ETRS_1989",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",500000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",15.0],PARAMETER["Scale_Factor",0.9996],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0]]
\ No newline at end of file
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+++ /dev/null
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-PROJCS["ETRS_1989_UTM_Zone_33N",GEOGCS["GCS_ETRS_1989",DATUM["D_ETRS_1989",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",500000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",15.0],PARAMETER["Scale_Factor",0.9996],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0]]
\ No newline at end of file
diff --git a/Testdaten/ATKIS Basis DLM dataset/geb01_l.shp b/Testdaten/ATKIS Basis DLM dataset/geb01_l.shp
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deleted file mode 100644
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-PROJCS["ETRS_1989_UTM_Zone_33N",GEOGCS["GCS_ETRS_1989",DATUM["D_ETRS_1989",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",500000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",15.0],PARAMETER["Scale_Factor",0.9996],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0]]
\ No newline at end of file
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deleted file mode 100644
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--- a/Testdaten/ATKIS Basis DLM dataset/geb03_f.prj	
+++ /dev/null
@@ -1 +0,0 @@
-PROJCS["ETRS_1989_UTM_Zone_33N",GEOGCS["GCS_ETRS_1989",DATUM["D_ETRS_1989",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",500000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",15.0],PARAMETER["Scale_Factor",0.9996],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0]]
\ No newline at end of file
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--- a/Testdaten/ATKIS Basis DLM dataset/gew02_p.prj	
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-PROJCS["ETRS_1989_UTM_Zone_33N",GEOGCS["GCS_ETRS_1989",DATUM["D_ETRS_1989",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",500000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",15.0],PARAMETER["Scale_Factor",0.9996],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0]]
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--- a/Testdaten/ATKIS Basis DLM dataset/gew03_l.prj	
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-PROJCS["ETRS_1989_UTM_Zone_33N",GEOGCS["GCS_ETRS_1989",DATUM["D_ETRS_1989",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",500000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",15.0],PARAMETER["Scale_Factor",0.9996],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0]]
\ No newline at end of file
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diff --git a/Testdaten/ATKIS Basis DLM dataset/hdu01_b.cpg b/Testdaten/ATKIS Basis DLM dataset/hdu01_b.cpg
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--- a/Testdaten/ATKIS Basis DLM dataset/hdu01_b.prj	
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-PROJCS["ETRS_1989_UTM_Zone_33N",GEOGCS["GCS_ETRS_1989",DATUM["D_ETRS_1989",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",500000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",15.0],PARAMETER["Scale_Factor",0.9996],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0]]
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diff --git a/Testdaten/ATKIS Basis DLM dataset/rel01_l.cpg b/Testdaten/ATKIS Basis DLM dataset/rel01_l.cpg
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-PROJCS["ETRS_1989_UTM_Zone_33N",GEOGCS["GCS_ETRS_1989",DATUM["D_ETRS_1989",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",500000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",15.0],PARAMETER["Scale_Factor",0.9996],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0]]
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diff --git a/Testdaten/ATKIS Basis DLM dataset/sie01_f.cpg b/Testdaten/ATKIS Basis DLM dataset/sie01_f.cpg
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-PROJCS["ETRS_1989_UTM_Zone_33N",GEOGCS["GCS_ETRS_1989",DATUM["D_ETRS_1989",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",500000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",15.0],PARAMETER["Scale_Factor",0.9996],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0]]
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-PROJCS["ETRS_1989_UTM_Zone_33N",GEOGCS["GCS_ETRS_1989",DATUM["D_ETRS_1989",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",500000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",15.0],PARAMETER["Scale_Factor",0.9996],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0]]
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-PROJCS["ETRS_1989_UTM_Zone_33N",GEOGCS["GCS_ETRS_1989",DATUM["D_ETRS_1989",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",500000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",15.0],PARAMETER["Scale_Factor",0.9996],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0]]
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-PROJCS["ETRS_1989_UTM_Zone_33N",GEOGCS["GCS_ETRS_1989",DATUM["D_ETRS_1989",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",500000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",15.0],PARAMETER["Scale_Factor",0.9996],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0]]
\ No newline at end of file
diff --git a/Testdaten/ATKIS Basis DLM dataset/ver06_p.shp b/Testdaten/ATKIS Basis DLM dataset/ver06_p.shp
deleted file mode 100644
index 5ff6f49..0000000
Binary files a/Testdaten/ATKIS Basis DLM dataset/ver06_p.shp and /dev/null differ
diff --git a/Testdaten/ATKIS Basis DLM dataset/ver06_p.shx b/Testdaten/ATKIS Basis DLM dataset/ver06_p.shx
deleted file mode 100644
index 6699570..0000000
Binary files a/Testdaten/ATKIS Basis DLM dataset/ver06_p.shx and /dev/null differ
diff --git a/basis-dlm-aaa_ebenen_inhalt.csv b/basis-dlm-aaa_ebenen_inhalt.csv
deleted file mode 100644
index ab89622..0000000
--- a/basis-dlm-aaa_ebenen_inhalt.csv
+++ /dev/null
@@ -1,110 +0,0 @@
-Ebene;Objektart;Objektartcode;Anzahl
-geb01_f;AX_Gebiet_Bundesland;75005;1
-geb01_f;AX_Gebiet_Kreis;75007;14
-geb01_f;AX_Gebiet_Verwaltungsgemeinschaft;75011;18
-geb01_f;AX_KommunalesGebiet;75003;218
-geb01_l;AX_Gebietsgrenze;75009;9944
-geb01_n;AX_Bundesland;73002;1
-geb01_n;AX_Gemeinde;73005;218
-geb01_n;AX_KreisRegion;73004;14
-geb01_n;AX_Verwaltungsgemeinschaft;73009;18
-geb02_f;AX_Insel;74004;81
-geb02_p;AX_Wohnplatz;74005;1641
-geb03_f;AX_Denkmalschutzrecht;71009;228
-geb03_f;AX_NaturUmweltOderBodenschutzrecht;71006;773
-geb03_f;AX_Schutzzone;71012;7
-geb03_f;AX_SonstigesRecht;71011;79
-geb03_l;AX_Denkmalschutzrecht;71009;52
-geb03_l;AX_NaturUmweltOderBodenschutzrecht;71006;91
-geb03_p;AX_Denkmalschutzrecht;71009;409
-geb03_p;AX_NaturUmweltOderBodenschutzrecht;71006;1232
-gew01_f;AX_Fliessgewaesser;44001;1981
-gew01_f;AX_Hafenbecken;44005;24
-gew01_f;AX_StehendesGewaesser;44006;7528
-gew01_l;AX_Gewaesserachse;44004;151044
-gew02_f;AX_Gewaessermerkmal;55001;88
-gew02_l;AX_Sickerstrecke;57004;1
-gew02_p;AX_Gewaessermerkmal;55001;729
-gew02_p;AX_Wasserspiegelhoehe;57001;288
-gew03_l;AX_Gewaesserstationierungsachse;57003;6369
-hdu01_b;;;61207
-hdu01_f;;;1821
-hdu01_l;;;59386
-hho01_b;;;21010
-hho01_l;;;648
-hho01_p;;;20362
-rel01_f;AX_FelsenFelsblockFelsnadel;61006;18
-rel01_l;AX_DammWallDeich;61003;17534
-rel01_l;AX_FelsenFelsblockFelsnadel;61006;766
-rel01_p;AX_FelsenFelsblockFelsnadel;61006;271
-rel01_p;AX_Hoehleneingang;61005;14
-sie01_f;AX_Ortslage;52001;3386
-sie02_f;AX_Bergbaubetrieb;41004;9
-sie02_f;AX_FlaecheBesondererFunktionalerPraegung;41007;3908
-sie02_f;AX_FlaecheGemischterNutzung;41006;53016
-sie02_f;AX_Friedhof;41009;2482
-sie02_f;AX_Halde;41003;117
-sie02_f;AX_IndustrieUndGewerbeflaeche;41002;18648
-sie02_f;AX_SportFreizeitUndErholungsflaeche;41008;12673
-sie02_f;AX_TagebauGrubeSteinbruch;41005;825
-sie02_f;AX_Wohnbauflaeche;41001;24432
-sie03_f;AX_BauwerkOderAnlageFuerIndustrieUndGewerbe;51002;4082
-sie03_f;AX_BauwerkOderAnlageFuerSportFreizeitUndErholung;51006;1744
-sie03_f;AX_HistorischesBauwerkOderHistorischeEinrichtung;51007;236
-sie03_f;AX_SonstigesBauwerkOderSonstigeEinrichtung;51009;27
-sie03_f;AX_VorratsbehaelterSpeicherbauwerk;51003;2546
-sie03_l;AX_BauwerkOderAnlageFuerSportFreizeitUndErholung;51006;185
-sie03_l;AX_HistorischesBauwerkOderHistorischeEinrichtung;51007;580
-sie03_l;AX_Leitung;51005;3233
-sie03_l;AX_SonstigesBauwerkOderSonstigeEinrichtung;51009;2981
-sie03_l;AX_Transportanlage;51004;100
-sie03_p;AX_BauwerkOderAnlageFuerIndustrieUndGewerbe;51002;15895
-sie03_p;AX_HistorischesBauwerkOderHistorischeEinrichtung;51007;409
-sie03_p;AX_SonstigesBauwerkOderSonstigeEinrichtung;51009;6044
-sie03_p;AX_Transportanlage;51004;376
-sie03_p;AX_VorratsbehaelterSpeicherbauwerk;51003;1981
-sie04_f;AX_Hafen;52002;48
-sie04_f;AX_Schleuse;52003;66
-sie05_f;AX_Bauteil;31002;24
-sie05_f;AX_Gebaeude;31001;1737638
-sie05_f;AX_Turm;51001;34
-sie05_p;AX_Turm;51001;2847
-veg01_f;AX_Landwirtschaft;43001;92859
-veg02_f;AX_Wald;43002;116359
-veg03_f;AX_Gehoelz;43003;29215
-veg03_f;AX_Heide;43004;1760
-veg03_f;AX_Moor;43005;28
-veg03_f;AX_Sumpf;43006;944
-veg03_f;AX_UnlandVegetationsloseFlaeche;43007;17559
-veg04_f;AX_Vegetationsmerkmal;54001;11179
-veg04_l;AX_Vegetationsmerkmal;54001;45790
-veg04_p;AX_Vegetationsmerkmal;54001;2676
-ver01_f;AX_Platz;42009;1988
-ver01_f;AX_Strassenverkehr;42001;12922
-ver01_l;AX_Fahrbahnachse;42005;4354
-ver01_l;AX_Strassenachse;42003;196539
-ver02_l;AX_Fahrwegachse;42008;217764
-ver02_l;AX_WegPfadSteig;53003;46985
-ver03_f;AX_Bahnverkehr;42010;2932
-ver03_l;AX_Bahnstrecke;42014;7458
-ver03_l;AX_Gleis;53006;2
-ver03_l;AX_SeilbahnSchwebebahn;53005;6
-ver04_f;AX_Flugverkehr;42015;71
-ver05_f;AX_Schiffsverkehr;42016;92
-ver05_l;AX_SchifffahrtslinieFaehrverkehr;57002;27
-ver06_f;AX_Bahnverkehrsanlage;53004;279
-ver06_f;AX_BauwerkImGewaesserbereich;53009;17
-ver06_f;AX_BauwerkImVerkehrsbereich;53001;521
-ver06_f;AX_EinrichtungenFuerDenSchiffsverkehr;53008;2
-ver06_f;AX_Flugverkehrsanlage;53007;85
-ver06_l;AX_BauwerkImGewaesserbereich;53009;47355
-ver06_l;AX_BauwerkImVerkehrsbereich;53001;7006
-ver06_l;AX_EinrichtungenFuerDenSchiffsverkehr;53008;84
-ver06_l;AX_Flugverkehrsanlage;53007;9
-ver06_l;AX_Strassenverkehrsanlage;53002;7
-ver06_p;AX_Bahnverkehrsanlage;53004;852
-ver06_p;AX_BauwerkImGewaesserbereich;53009;300
-ver06_p;AX_BauwerkImVerkehrsbereich;53001;13
-ver06_p;AX_EinrichtungenFuerDenSchiffsverkehr;53008;163
-ver06_p;AX_Flugverkehrsanlage;53007;47
-ver06_p;AX_Strassenverkehrsanlage;53002;348
diff --git a/docs/README.md b/docs/README.md
index f7a216f..081b6d0 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -79,8 +79,9 @@ via IBTool's own **Check** button) stay outside the plugin.
 
 ## Out of Scope
 
-- **`Part` (partitioning layer)** — produced by a separate, dedicated
-  tool; Data Wizard doesn't touch it.
+- **`Part` (partitioning layer)** — produced by the sibling plugin
+  **[IB-Tool (Partitioning)](https://github.com/IB-Tool/ibtoolpartion)**;
+  Data Wizard doesn't touch it.
 - **Filter file** — a separately maintained, largely static file; Data
   Wizard doesn't touch it.
 - **Validation** — Data Wizard does not re-implement IBTool's
diff --git a/test/config.py b/test/config.py
index 8e96f19..dcd7c9e 100644
--- a/test/config.py
+++ b/test/config.py
@@ -1,12 +1,31 @@
+"""Central test configuration for Data Wizard.
+
+Single source of truth for two things:
+
+1. The local QGIS bootstrap (``apply_qgis_environment``), applied from
+   ``test/__init__.py`` before anything imports ``qgis``.
+2. The location of the committed test data under ``Testdaten/`` and the
+   ``requires_atkis_testdaten`` skip marker derived from it.
+
+Everything path-related is driven by ``test_config.ini`` so the layout is
+declared in exactly one place. Test modules must not re-derive these paths —
+import them from here instead.
+"""
+
 import configparser
 import os
 import sys
 from pathlib import Path
 
+import pytest
+
 CONFIG_FILE = Path(__file__).parent / 'test_config.ini'
 
 parser = configparser.ConfigParser()
-parser.read(CONFIG_FILE)
+# Explicit UTF-8: the [testdata] paths contain umlauts ("ALKIS Gebäude"), and
+# configparser would otherwise fall back to the platform encoding (cp1252 on
+# Windows), which makes the file non-portable.
+parser.read(CONFIG_FILE, encoding='utf-8')
 
 QGIS_PREFIX_PATH = parser.get('qgis', 'prefix_path', fallback=r'C:\\Program Files\\QGIS 3.40.0')
 
@@ -26,3 +45,48 @@ def apply_qgis_environment():
         p_str = str(p)
         if os.path.exists(p_str) and p_str not in sys.path:
             sys.path.insert(0, p_str)
+
+
+# ---------------------------------------------------------------------------
+# Committed test data (Testdaten/)
+# ---------------------------------------------------------------------------
+
+#: Root of the committed test data.
+TESTDATEN_DIR = PROJECT_ROOT / parser.get('testdata', 'dir', fallback='Testdaten')
+
+#: Folder holding the flat ATKIS Basis-DLM shapefiles. processor._load_shp
+#: does not search recursively, so this must be the folder that directly
+#: contains ver01_l.shp etc. — it is what gets passed as source_dir.
+ATKIS_DIR = TESTDATEN_DIR / parser.get(
+    'testdata', 'atkis_subdir', fallback='ATKIS Basis DLM dataset')
+
+#: Building footprint file passed as hu_path.
+HU_SHP = TESTDATEN_DIR / parser.get(
+    'testdata', 'hu_file', fallback='ALKIS Gebäude/GebauedeBauwerk.shp')
+
+#: The seven ATKIS source layers processor.process_atkis reads. Keep in sync
+#: with processor._process_rn / _process_aux.
+ATKIS_LAYERS = ('ver01_l', 'ver02_l', 'ver03_l', 'veg02_f', 'veg03_f',
+                'gew01_f', 'gew01_l')
+
+#: True when the full extract is present and the end-to-end tests can run.
+ATKIS_DATA_AVAILABLE = (
+    ATKIS_DIR.is_dir()
+    and all((ATKIS_DIR / f'{name}.shp').exists() for name in ATKIS_LAYERS)
+    and HU_SHP.exists()
+)
+
+TESTDATA_SKIP_REASON = (
+    f"Test data incomplete - expected the seven ATKIS layers in {ATKIS_DIR} "
+    f"and the building footprints at {HU_SHP}. See docs/test-strategy.md."
+)
+
+#: Shared skip marker for every test that needs the real ATKIS/ALKIS extract.
+requires_atkis_testdaten = pytest.mark.skipif(
+    not ATKIS_DATA_AVAILABLE, reason=TESTDATA_SKIP_REASON)
+
+
+def missing_atkis_layers():
+    """Return the ATKIS layer names absent from ATKIS_DIR (empty when complete)."""
+    return [name for name in ATKIS_LAYERS
+            if not (ATKIS_DIR / f'{name}.shp').exists()]
diff --git a/test/test_config.ini b/test/test_config.ini
index 2a0fd81..4772dd4 100644
--- a/test/test_config.ini
+++ b/test/test_config.ini
@@ -1,2 +1,16 @@
+; Local test configuration for Data Wizard (UTF-8).
+;
+; [qgis] is only consulted for local runs; the Docker image sets
+; QGIS_PREFIX_PATH=/usr itself.
+;
+; [testdata] declares the layout of the committed Testdaten/ folder. This is
+; the single place where those paths are defined - test/config.py reads them
+; and test modules import the resulting constants from there.
+
 [qgis]
 prefix_path = C:\\Program Files\\QGIS 3.40.0
+
+[testdata]
+dir = Testdaten
+atkis_subdir = ATKIS Basis DLM dataset
+hu_file = ALKIS Gebäude/GebauedeBauwerk.shp
diff --git a/test/test_processor.py b/test/test_processor.py
index 6d140fe..c33193f 100644
--- a/test/test_processor.py
+++ b/test/test_processor.py
@@ -29,7 +29,9 @@
     make_polygon_layer, make_square_geom,
     write_layer_as_shp,
 )
-from .config import PROJECT_ROOT  # noqa: E402
+# Test data paths and the skip marker live in test/config.py, driven by
+# test_config.ini - do not re-derive them here.
+from .config import ATKIS_DIR, HU_SHP, requires_atkis_testdaten  # noqa: E402
 
 from data_wizard.processor import (  # noqa: E402
     _add_function_field_copy, _check_cancel,
@@ -41,22 +43,6 @@
 CRS_25833 = QgsCoordinateReferenceSystem("EPSG:25833")
 CRS_4326 = QgsCoordinateReferenceSystem("EPSG:4326")
 
-TESTDATEN_DIR = PROJECT_ROOT / "Testdaten"
-ATKIS_DIR = TESTDATEN_DIR / "ATKIS Basis DLM dataset"
-HU_SHP = TESTDATEN_DIR / "ALKIS Gebäude" / "GebauedeBauwerk.shp"
-
-_ATKIS_LAYERS = ("ver01_l", "ver02_l", "ver03_l", "veg02_f", "veg03_f",
-                 "gew01_f", "gew01_l")
-ATKIS_DATA_AVAILABLE = (
-    ATKIS_DIR.is_dir()
-    and all((ATKIS_DIR / f"{name}.shp").exists() for name in _ATKIS_LAYERS)
-    and HU_SHP.exists()
-)
-requires_atkis_testdaten = pytest.mark.skipif(
-    not ATKIS_DATA_AVAILABLE,
-    reason="Testdaten/ATKIS Basis DLM dataset or Testdaten/ALKIS Gebäude "
-           "missing - see docs/test-strategy.md")
-
 
 def _assert_valid_geometries(layer):
     """Mandatory geometry checks per docs/test-strategy.md Step 4."""