Remove older (incorrect!) test cases for union

The newer test data (overlay1_a and overlay1_b) cover more scenarios
and can be more easily investigated if something goes wrong.

python/plugins/processing/tests/testdata/custom/for_union.gml

@@ -1,24 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<ogr:FeatureCollection
-     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-     xsi:schemaLocation="http://ogr.maptools.org/ for_union.xsd"
-     xmlns:ogr="http://ogr.maptools.org/"
-     xmlns:gml="http://www.opengis.net/gml">
-  <gml:boundedBy>
-    <gml:Box>
-      <gml:coord><gml:X>18.6909193535413</gml:X><gml:Y>45.7778586469115</gml:Y></gml:coord>
-      <gml:coord><gml:X>18.7047140186325</gml:X><gml:Y>45.8064427846727</gml:Y></gml:coord>
-    </gml:Box>
-  </gml:boundedBy>
-                                                                                                    
-  <gml:featureMember>
-    <ogr:for_union fid="1">
-      <ogr:geometryProperty><gml:Polygon srsName="EPSG:4326"><gml:outerBoundaryIs><gml:LinearRing><gml:coordinates>18.6931079302144,45.8064427846727 18.6909193535413,45.7990812085903 18.6939700967826,45.7943061322126 18.7047140186325,45.7953009397913 18.6931079302144,45.8064427846727</gml:coordinates></gml:LinearRing></gml:outerBoundaryIs></gml:Polygon></ogr:geometryProperty>
-    </ogr:for_union>
-  </gml:featureMember>
-  <gml:featureMember>
-    <ogr:for_union fid="2">
-      <ogr:geometryProperty><gml:Polygon srsName="EPSG:4326"><gml:outerBoundaryIs><gml:LinearRing><gml:coordinates>18.6989441346761,45.790923786445 18.695694429919,45.7842254154151 18.6982809296236,45.7800472235846 18.6998063012443,45.7778586469115 18.7027907239804,45.7864139920883 18.7047140186325,45.7884699277509 18.6989441346761,45.790923786445</gml:coordinates></gml:LinearRing></gml:outerBoundaryIs></gml:Polygon></ogr:geometryProperty>
-    </ogr:for_union>
-  </gml:featureMember>
-</ogr:FeatureCollection>

python/plugins/processing/tests/testdata/custom/for_union.xsd

@@ -1,23 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<xs:schema targetNamespace="http://ogr.maptools.org/" xmlns:ogr="http://ogr.maptools.org/" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:gml="http://www.opengis.net/gml" elementFormDefault="qualified" version="1.0">
-<xs:import namespace="http://www.opengis.net/gml" schemaLocation="http://schemas.opengis.net/gml/2.1.2/feature.xsd"/>
-<xs:element name="FeatureCollection" type="ogr:FeatureCollectionType" substitutionGroup="gml:_FeatureCollection"/>
-<xs:complexType name="FeatureCollectionType">
-  <xs:complexContent>
-    <xs:extension base="gml:AbstractFeatureCollectionType">
-      <xs:attribute name="lockId" type="xs:string" use="optional"/>
-      <xs:attribute name="scope" type="xs:string" use="optional"/>
-    </xs:extension>
-  </xs:complexContent>
-</xs:complexType>
-<xs:element name="for_union" type="ogr:for_union_Type" substitutionGroup="gml:_Feature"/>
-<xs:complexType name="for_union_Type">
-  <xs:complexContent>
-    <xs:extension base="gml:AbstractFeatureType">
-      <xs:sequence>
-        <xs:element name="geometryProperty" type="gml:PolygonPropertyType" nillable="true" minOccurs="0" maxOccurs="1"/>
-      </xs:sequence>
-    </xs:extension>
-  </xs:complexContent>
-</xs:complexType>
-</xs:schema>

python/plugins/processing/tests/testdata/expected/difference.gml

@@ -1,24 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<ogr:FeatureCollection
-     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-     xsi:schemaLocation="http://ogr.maptools.org/ difference.xsd"
-     xmlns:ogr="http://ogr.maptools.org/"
-     xmlns:gml="http://www.opengis.net/gml">
-  <gml:boundedBy>
-    <gml:Box>
-      <gml:coord><gml:X>18.69196794111859</gml:X><gml:Y>45.7778586469115</gml:Y></gml:coord>
-      <gml:coord><gml:X>18.7047140186325</gml:X><gml:Y>45.8064427846727</gml:Y></gml:coord>
-    </gml:Box>
-  </gml:boundedBy>
-                                                                                                   
-  <gml:featureMember>
-    <ogr:difference fid="1">
-      <ogr:geometryProperty><gml:MultiPolygon srsName="EPSG:4326"><gml:polygonMember><gml:Polygon><gml:outerBoundaryIs><gml:LinearRing><gml:coordinates>18.6919679411186,45.8026082758958 18.6931079302144,45.8064427846727 18.7047140186325,45.7953009397913 18.6939700967826,45.7943061322126 18.6931834255857,45.7955374436512 18.694442232425,45.7962359279339 18.6948297543933,45.8001757346123 18.6919679411186,45.8026082758958</gml:coordinates></gml:LinearRing></gml:outerBoundaryIs></gml:Polygon></gml:polygonMember></gml:MultiPolygon></ogr:geometryProperty>
-    </ogr:difference>
-  </gml:featureMember>
-  <gml:featureMember>
-    <ogr:difference fid="2">
-      <ogr:geometryProperty><gml:MultiPolygon srsName="EPSG:4326"><gml:polygonMember><gml:Polygon><gml:outerBoundaryIs><gml:LinearRing><gml:coordinates>18.6977017543579,45.7883629617075 18.6989441346761,45.790923786445 18.7047140186325,45.7884699277509 18.7027907239804,45.7864139920883 18.6998063012443,45.7778586469115 18.6982809296236,45.7800472235846 18.6979288821319,45.7806159156867 18.6997383659926,45.7811225711677 18.7009009318977,45.7856436607986 18.6977017543579,45.7883629617075</gml:coordinates></gml:LinearRing></gml:outerBoundaryIs></gml:Polygon></gml:polygonMember></gml:MultiPolygon></ogr:geometryProperty>
-    </ogr:difference>
-  </gml:featureMember>
-</ogr:FeatureCollection>

python/plugins/processing/tests/testdata/expected/difference.xsd

@@ -1,23 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<xs:schema targetNamespace="http://ogr.maptools.org/" xmlns:ogr="http://ogr.maptools.org/" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:gml="http://www.opengis.net/gml" elementFormDefault="qualified" version="1.0">
-<xs:import namespace="http://www.opengis.net/gml" schemaLocation="http://schemas.opengis.net/gml/2.1.2/feature.xsd"/>
-<xs:element name="FeatureCollection" type="ogr:FeatureCollectionType" substitutionGroup="gml:_FeatureCollection"/>
-<xs:complexType name="FeatureCollectionType">
-  <xs:complexContent>
-    <xs:extension base="gml:AbstractFeatureCollectionType">
-      <xs:attribute name="lockId" type="xs:string" use="optional"/>
-      <xs:attribute name="scope" type="xs:string" use="optional"/>
-    </xs:extension>
-  </xs:complexContent>
-</xs:complexType>
-<xs:element name="difference" type="ogr:difference_Type" substitutionGroup="gml:_Feature"/>
-<xs:complexType name="difference_Type">
-  <xs:complexContent>
-    <xs:extension base="gml:AbstractFeatureType">
-      <xs:sequence>
-        <xs:element name="geometryProperty" type="gml:MultiPolygonPropertyType" nillable="true" minOccurs="0" maxOccurs="1"/>
-      </xs:sequence>
-    </xs:extension>
-  </xs:complexContent>
-</xs:complexType>
-</xs:schema>

python/plugins/processing/tests/testdata/expected/union.gml

@@ -1,46 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<ogr:FeatureCollection
-     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-     xsi:schemaLocation="http://ogr.maptools.org/ union.xsd"
-     xmlns:ogr="http://ogr.maptools.org/"
-     xmlns:gml="http://www.opengis.net/gml">
-  <gml:boundedBy>
-    <gml:Box>
-      <gml:coord><gml:X>18.67319311115957</gml:X><gml:Y>45.7778586469115</gml:Y></gml:coord>
-      <gml:coord><gml:X>18.7047140186325</gml:X><gml:Y>45.80786158698488</gml:Y></gml:coord>
-    </gml:Box>
-  </gml:boundedBy>
-                                                                                                  
-  <gml:featureMember>
-    <ogr:union fid="polygon_mask.0">
-      <ogr:geometryProperty><gml:MultiPolygon srsName="EPSG:4326"><gml:polygonMember><gml:Polygon><gml:outerBoundaryIs><gml:LinearRing><gml:coordinates>18.6919679411186,45.8026082758958 18.6948297543933,45.8001757346123 18.694442232425,45.7962359279339 18.6931834255857,45.7955374436512 18.6909193535413,45.7990812085903 18.6919679411186,45.8026082758958</gml:coordinates></gml:LinearRing></gml:outerBoundaryIs></gml:Polygon></gml:polygonMember></gml:MultiPolygon></ogr:geometryProperty>
-    </ogr:union>
-  </gml:featureMember>
-  <gml:featureMember>
-    <ogr:union fid="polygon_mask.0">
-      <ogr:geometryProperty><gml:MultiPolygon srsName="EPSG:4326"><gml:polygonMember><gml:Polygon><gml:outerBoundaryIs><gml:LinearRing><gml:coordinates>18.6744202640594,45.7984964727494 18.6832040953424,45.8078615869849 18.6896627948151,45.8045676502538 18.6919679411186,45.8026082758958 18.6909193535413,45.7990812085903 18.6931834255857,45.7955374436512 18.6838499652896,45.7903585114137 18.6759703519329,45.7902293374243 18.6731931111596,45.7899709894453 18.6744202640594,45.7984964727494</gml:coordinates></gml:LinearRing></gml:outerBoundaryIs></gml:Polygon></gml:polygonMember></gml:MultiPolygon></ogr:geometryProperty>
-    </ogr:union>
-  </gml:featureMember>
-  <gml:featureMember>
-    <ogr:union fid="polygon_mask.1">
-      <ogr:geometryProperty><gml:MultiPolygon srsName="EPSG:4326"><gml:polygonMember><gml:Polygon><gml:outerBoundaryIs><gml:LinearRing><gml:coordinates>18.6977017543579,45.7883629617075 18.7009009318977,45.7856436607986 18.6997383659926,45.7811225711677 18.6979288821319,45.7806159156867 18.695694429919,45.7842254154151 18.6977017543579,45.7883629617075</gml:coordinates></gml:LinearRing></gml:outerBoundaryIs></gml:Polygon></gml:polygonMember></gml:MultiPolygon></ogr:geometryProperty>
-    </ogr:union>
-  </gml:featureMember>
-  <gml:featureMember>
-    <ogr:union fid="polygon_mask.1">
-      <ogr:geometryProperty><gml:MultiPolygon srsName="EPSG:4326"><gml:polygonMember><gml:Polygon><gml:outerBoundaryIs><gml:LinearRing><gml:coordinates>18.6906961867308,45.7866124657195 18.694442232425,45.7911335553504 18.6977017543579,45.7883629617075 18.695694429919,45.7842254154151 18.6979288821319,45.7806159156867 18.6884356419153,45.777957808426 18.6804914415638,45.7798954182678 18.6800393326007,45.7833185289884 18.6906961867308,45.7866124657195</gml:coordinates></gml:LinearRing></gml:outerBoundaryIs></gml:Polygon></gml:polygonMember></gml:MultiPolygon></ogr:geometryProperty>
-    </ogr:union>
-  </gml:featureMember>
-  <gml:featureMember>
-    <ogr:union fid="union.4">
-      <ogr:geometryProperty><gml:MultiPolygon srsName="EPSG:4326"><gml:polygonMember><gml:Polygon><gml:outerBoundaryIs><gml:LinearRing><gml:coordinates>18.6919679411186,45.8026082758958 18.6931079302144,45.8064427846727 18.7047140186325,45.7953009397913 18.6939700967826,45.7943061322126 18.6931834255857,45.7955374436512 18.694442232425,45.7962359279339 18.6948297543933,45.8001757346123 18.6919679411186,45.8026082758958</gml:coordinates></gml:LinearRing></gml:outerBoundaryIs></gml:Polygon></gml:polygonMember></gml:MultiPolygon></ogr:geometryProperty>
-      <ogr:fid_2>1</ogr:fid_2>
-    </ogr:union>
-  </gml:featureMember>
-  <gml:featureMember>
-    <ogr:union fid="union.5">
-      <ogr:geometryProperty><gml:MultiPolygon srsName="EPSG:4326"><gml:polygonMember><gml:Polygon><gml:outerBoundaryIs><gml:LinearRing><gml:coordinates>18.6977017543579,45.7883629617075 18.6989441346761,45.790923786445 18.7047140186325,45.7884699277509 18.7027907239804,45.7864139920883 18.6998063012443,45.7778586469115 18.6982809296236,45.7800472235846 18.6979288821319,45.7806159156867 18.6997383659926,45.7811225711677 18.7009009318977,45.7856436607986 18.6977017543579,45.7883629617075</gml:coordinates></gml:LinearRing></gml:outerBoundaryIs></gml:Polygon></gml:polygonMember></gml:MultiPolygon></ogr:geometryProperty>
-      <ogr:fid_2>2</ogr:fid_2>
-    </ogr:union>
-  </gml:featureMember>
-</ogr:FeatureCollection>

python/plugins/processing/tests/testdata/expected/union.xsd

@@ -1,30 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<xs:schema targetNamespace="http://ogr.maptools.org/" xmlns:ogr="http://ogr.maptools.org/" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:gml="http://www.opengis.net/gml" elementFormDefault="qualified" version="1.0">
-<xs:import namespace="http://www.opengis.net/gml" schemaLocation="http://schemas.opengis.net/gml/2.1.2/feature.xsd"/>
-<xs:element name="FeatureCollection" type="ogr:FeatureCollectionType" substitutionGroup="gml:_FeatureCollection"/>
-<xs:complexType name="FeatureCollectionType">
-  <xs:complexContent>
-    <xs:extension base="gml:AbstractFeatureCollectionType">
-      <xs:attribute name="lockId" type="xs:string" use="optional"/>
-      <xs:attribute name="scope" type="xs:string" use="optional"/>
-    </xs:extension>
-  </xs:complexContent>
-</xs:complexType>
-<xs:element name="union" type="ogr:union_Type" substitutionGroup="gml:_Feature"/>
-<xs:complexType name="union_Type">
-  <xs:complexContent>
-    <xs:extension base="gml:AbstractFeatureType">
-      <xs:sequence>
-        <xs:element name="geometryProperty" type="gml:MultiPolygonPropertyType" nillable="true" minOccurs="0" maxOccurs="1"/>
-        <xs:element name="fid_2" nillable="true" minOccurs="0" maxOccurs="1">
-          <xs:simpleType>
-            <xs:restriction base="xs:string">
-              <xs:maxLength value="255"/>
-            </xs:restriction>
-          </xs:simpleType>
-        </xs:element>
-      </xs:sequence>
-    </xs:extension>
-  </xs:complexContent>
-</xs:complexType>
-</xs:schema>

python/plugins/processing/tests/testdata/qgis_algorithm_tests.yaml

@@ -4989,34 +4989,6 @@ tests:
             __all__:
               precision: 7
 
-  - algorithm: qgis:union
-    name: Union simple
-    params:
-      INPUT:
-        name: custom/polygon_mask.gml
-        type: vector
-      OVERLAY:
-        name: custom/for_union.gml
-        type: vector
-    results:
-      OUTPUT:
-        name: expected/union.gml
-        type: vector
-
-  - algorithm: qgis:difference
-    name: Difference test
-    params:
-      INPUT:
-        name: custom/for_union.gml
-        type: vector
-      OVERLAY:
-        name: custom/polygon_mask.gml
-        type: vector
-    results:
-      OUTPUT:
-        name: expected/difference.gml
-        type: vector
-
   - algorithm: native:projectpointcartesian
     name: Project points cartesian
     params: