multiple geoms dissolve return none

Author: Tahira Ullah

mapswipe_workers/tests/unittests/fixtures/completeness/collected.geojson

@@ -0,0 +1,8 @@
+{
+"type": "FeatureCollection",
+"name": "collected",
+"crs": { "type": "name", "properties": { "name": "urn:ogc:def:crs:OGC:1.3:CRS84" } },
+"features": [
+{ "type": "Feature", "properties": { "id": null }, "geometry": { "type": "MultiPolygon", "coordinates": [ [ [ [ 9.267717755524947, 48.812788568504551 ], [ 9.274544337888633, 48.834874570269413 ], [ 9.300846758172247, 48.826642515066148 ], [ 9.28177248392077, 48.798533058274501 ], [ 9.267717755524947, 48.812788568504551 ] ] ], [ [ [ 9.301850667343377, 48.796324458098013 ], [ 9.286591247942196, 48.812387004836097 ], [ 9.291209230129395, 48.822626878381627 ], [ 9.321125723429077, 48.818209678028651 ], [ 9.301850667343377, 48.796324458098013 ] ] ] ] } }
+]
+}

mapswipe_workers/tests/unittests/fixtures/completeness/overlappingGeoms.geojson

@@ -0,0 +1,9 @@
+{
+"type": "FeatureCollection",
+"name": "overlappingGeoms",
+"crs": { "type": "name", "properties": { "name": "urn:ogc:def:crs:OGC:1.3:CRS84" } },
+"features": [
+{ "type": "Feature", "properties": { "id": null }, "geometry": { "type": "MultiPolygon", "coordinates": [ [ [ [ 9.267717755524947, 48.812788568504551 ], [ 9.274544337888633, 48.834874570269413 ], [ 9.300846758172247, 48.826642515066148 ], [ 9.28177248392077, 48.798533058274501 ], [ 9.267717755524947, 48.812788568504551 ] ] ] ] } },
+{ "type": "Feature", "properties": { "id": null }, "geometry": { "type": "MultiPolygon", "coordinates": [ [ [ [ 9.301850667343377, 48.796324458098013 ], [ 9.286591247942196, 48.812387004836097 ], [ 9.291209230129395, 48.822626878381627 ], [ 9.321125723429077, 48.818209678028651 ], [ 9.301850667343377, 48.796324458098013 ] ] ] ] } }
+]
+}

mapswipe_workers/tests/unittests/test_validate_geometries.py

@@ -20,22 +20,31 @@ class TestGeometryValidation(unittest.TestCase):
     def test_multiple_geom_validation(self):
         path = "fixtures/completeness/projectDraft.json"
         test_dir = os.path.dirname(os.path.abspath(__file__))
-        project = create_project(path)
+        # project = create_project(path)
         # prepare data that is expected
-        path = os.path.join(test_dir, "fixtures/completeness/multiplePolygons.geojson")
+        path = os.path.join(test_dir, "fixtures/completeness/overlappingGeoms.geojson")
         driver = ogr.GetDriverByName("GeoJSON")
         data_source = driver.Open(path, 0)
-        wkt_geometries_expected = []
+
+        multipolygon_geometry = ogr.Geometry(ogr.wkbMultiPolygon)
         # Get the data layer
         layer = data_source.GetLayer()
+
         for feature in layer:
             feat_geom = feature.GetGeometryRef()
-            wkt_geometries_expected.append(feat_geom.ExportToWkt())
+            wkt = feat_geom.ExportToWkt()
+            geom_name = feat_geom.GetGeometryName()
+            print(geom_name)
+            multipolygon_geometry.AddGeometryDirectly(ogr.CreateGeometryFromWkt(wkt))
+
+        dissolved_geometry = multipolygon_geometry.UnionCascaded()
+        print(dissolved_geometry)
 
+        # wkt_geometry_collection = geometry_collection.ExportToWkt()
+        # print(wkt_geometry_collection)
         # results coming from the validate geometries function
-        wkt = project.validate_geometries()
-        self.assertCountEqual(wkt, wkt_geometries_expected)
 
+    """
     def test_single_geom_validation(self):
         path = "fixtures/completeness/projectDraft_single.json"
         test_dir = os.path.dirname(os.path.abspath(__file__))
@@ -46,17 +55,22 @@ def test_single_geom_validation(self):
         driver = ogr.GetDriverByName("GeoJSON")
         datasource = driver.Open(path, 0)
 
-        wkt_geometries_expected = []
+
+        geometry_collection = ogr.Geometry(ogr.wkbGeometryCollection)
         # Get the data layer
         layer = datasource.GetLayer()
         for feature in layer:
             feat_geom = feature.GetGeometryRef()
-            wkt_geometries_expected.append(feat_geom.ExportToWkt())
+            geometry_collection.AddGeometry(feat_geom)
+
+        wkt_geometry_collection = geometry_collection.ExportToWkt()
+        print(wkt_geometry_collection)
 
         # results coming from the validate_geometries function
         wkt = project.validate_geometries()
         # Test that sequence first contains the same elements as second
         self.assertCountEqual(wkt, wkt_geometries_expected)
+        """
 
 
 if __name__ == "__main__":