add ogrinfo test

Author: jmckenna

en/ogc/wfs_server.txt

@@ -11,7 +11,7 @@
 :Contact: jmckenna at gatewaygeomatics.com
 :Author: Even Rouault
 :Contact: even.rouault at mines-paris.org
-:Last Updated: 2025-04-14
+:Last Updated: 2025-11-09
 
 .. contents::
     :depth: 2
@@ -213,6 +213,8 @@ the comments for the required parameters.
             "gml_include_items" "all" ## Optional (serves all attributes for layer)
             "gml_featureid"     "ID" ## REQUIRED
             "gml_types"         "auto" ## Optional (automatically populate the type for the attributes)
+            "gml_geometries"    "geom" ## Recommended (give new name for geometry elements)
+            "gml_geom_type"     "polygon" ## Recommended (specify the geometry type for the layer)          
             "wfs_enable_request" "*"
             "wfs_use_default_extent_for_getfeature" "false" ## Optional (improves performance of OGR layers)
           END  
@@ -369,6 +371,71 @@ few pointers:
 - `Deegree`_ provides a WFS client.
 
 - `uDig`_ can add layers from WMS/WFS servers.
+
+Test with an ogrinfo command
+****************************
+
+You can use GDAL's `WFS driver <https://gdal.org/en/stable/drivers/vector/wfs.html>`__ 
+and the `ogrinfo utility <https://gdal.org/en/stable/programs/ogrinfo.html>`__ 
+to analyze your WFS service.
+
+For example, here is a command to examine the `continents` WFS layer:
+
+::
+
+  ogrinfo WFS:"https://demo.mapserver.org/cgi-bin/wfs?SERVICE=WFS&VERSION=2.0.0&REQUEST=GetCapabilities" continents
+
+Which should return something like:
+
+::
+
+  INFO: Open of `WFS:https://demo.mapserver.org/cgi-bin/wfs?SERVICE=WFS&VERSION=2.0.0&REQUEST=GetCapabilities'
+      using driver `WFS' successful.
+    Metadata:
+      TITLE=WFS Demo Server for MapServer
+      ABSTRACT=This demonstration server showcases MapServer (www.mapserver.org) and its OGC support
+      PROVIDER_NAME=GatewayGeo
+
+    Layer name: ms:continents
+    Metadata:
+      TITLE=World continents
+    Geometry: Curve Polygon
+    Feature Count: 27458
+    Extent: (-180.000000, -90.000000) - (180.000000, 83.627419)
+    Layer SRS WKT:
+    GEOGCRS["WGS 84",
+        ENSEMBLE["World Geodetic System 1984 ensemble",
+            MEMBER["World Geodetic System 1984 (Transit)"],
+            MEMBER["World Geodetic System 1984 (G730)"],
+            MEMBER["World Geodetic System 1984 (G873)"],
+            MEMBER["World Geodetic System 1984 (G1150)"],
+            MEMBER["World Geodetic System 1984 (G1674)"],
+            MEMBER["World Geodetic System 1984 (G1762)"],
+            MEMBER["World Geodetic System 1984 (G2139)"],
+            MEMBER["World Geodetic System 1984 (G2296)"],
+            ELLIPSOID["WGS 84",6378137,298.257223563,
+                LENGTHUNIT["metre",1]],
+            ENSEMBLEACCURACY[2.0]],
+        PRIMEM["Greenwich",0,
+            ANGLEUNIT["degree",0.0174532925199433]],
+        CS[ellipsoidal,2],
+            AXIS["geodetic latitude (Lat)",north,
+                ORDER[1],
+                ANGLEUNIT["degree",0.0174532925199433]],
+            AXIS["geodetic longitude (Lon)",east,
+                ORDER[2],
+                ANGLEUNIT["degree",0.0174532925199433]],
+        USAGE[
+            SCOPE["Horizontal component of 3D system."],
+            AREA["World."],
+            BBOX[-90,-180,90,180]],
+        ID["EPSG",4326]]
+    Data axis to CRS axis mapping: 2,1
+    Supported SRS: EPSG:4326, EPSG:4269, EPSG:3978, EPSG:3857
+    Geometry Column = geom
+    gml_id: String (0.0) NOT NULL
+    NA2DESC: String (0.0)
+    NA3DESC: String (0.0)
 
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