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Documentation of GeoJSON Tests

This document describes the tests being performed to assess usability of INSPIRE data in GeoJSON encoding.

GeoJSON is being discussed as an alternative encoding for INSPIRE data. To determine what features of GeoJSON to use in that alternative encoding, we have specified this test suite for client applications.

GeoJSON support

Load data from file

Test if the client can load and display data from a .geojson file

Test IDs:

  • geojson_file_load
  • geojson_file_display

Download data from WFS

Test if client can load and display geojson data from a WFS

Test IDs:

  • geojson_WFS_load
  • geojson_WFS_display

Edit / create features

Test if client can edit/create geojson features

Test IDs:

  • geojson_features_edit
  • geojson_features_create

File Size

Test if the client handle big file sizes

Test IDs:

  • geojson_size_200m_load
  • geojson_size_200m_display
  • geojson_size_1000m_load
  • geojson_size_1000m_display
  • geojson_size_2000m_load
  • geojson_size_2000m_display
  • geojson_size_3000m_load
  • geojson_size_3000m_display

Geometry

GeoJSON allows quite a wide variety of Geometry types. In this set of tests, we verify that clients can read the geometry and then style and and process it.

Points

Can the software load and display Point geometries without any issues?

Test IDs:

  • geojson_geometry_point_load
  • geojson_geometry_point_display

LineStrings

Can the software load and display LineString geometries without any issues?

Test IDs:

  • geojson_geometry_linestring_load
  • geojson_geometry_linestring_display

Polygons

Can the software load and display Polygon geometries without any issues? Are inner polgyon rings supported? What about Polygons with a very large number of points (> 10.000)?

Test IDs:

  • geojson_geometry_polygon_load
  • geojson_geometry_polygon_display
  • geojson_geometry_polygon_inner_load
  • geojson_geometry_polygon_inner_display
  • geojson_geometry_polygon_large

MultiPoints

Can the software load and display MultiPoint geometries without any issues? Are the issues with very large numbers of Points in a MultiPoint Geometry?

Test IDs:

  • geojson_geometry_multipoint_load
  • geojson_geometry_multipoint_display
  • geojson_geometry_multipoint_large

MultiLines

Can the software load and display MultiLine geometries without any issues? Are the issues with very large numbers of lines in a MultiLine Geometry?

Test IDs:

  • geojson_geometry_multiline_load
  • geojson_geometry_multiline_display
  • geojson_geometry_multiline_large

MultiPolygons

Can the software load and display MultiPolygon geometries without any issues? Are the issues with very large numbers of polygons in a MultiPolygon Geometry?

Test IDs:

  • geojson_geometry_multipolygon_load
  • geojson_geometry_multipolygon_display
  • geojson_geometry_multipolygon_large

Geometry Collections

Can the software load and display Geometry Collections?

Test IDs:

  • geojson_geometry_geometrycollection_load
  • geojson_geometry_geometrycollection_display

Mixed-type Geometry Collections

  • geojson_geometry_mixed_geometrycollection_load
  • geojson_geometry_mixed_geometrycollection_display

3D coordinates

Can the software read and display geometries that use 3 ordinates per position?

Test IDs:

  • geojson_geometry_3d_load
  • geojson_geometry_3d_display

Property Types

These tests verify whether there are issues with certain property types, e.g. whether they can be used for styling. They check whether the property is read and can be used in styling and processing.

Boolean

Does the software read and display boolean values? Can these be used in styling? Can these be used in processing/analytic tools?

Test IDs:

  • geojson_property_boolean_load
  • geojson_property_boolean_display
  • geojson_property_boolean_style
  • geojson_property_boolean_processing

Array

Does the software read and display a list of simple properties? Can these be used in styling? Can these be used in processing/analytic tools?

Test IDs:

  • geojson_property_array_load
  • geojson_property_array_display
  • geojson_property_array_style
  • geojson_property_array_processing

Properties with complex data types

Does the software read and display a complex property? Can these be used in styling? Can these be used in processing/analytic tools?

Test IDs:

  • geojson_complex_property_load
  • geojson_complex_property_display
  • geojson_complex_property_style
  • geojson_complex_property_processing

References

Does the software support $ref, as defined in the JSON Reference Draft? Can the software resolve it?

Test IDs:

  • geojson_property_ref_load
  • geojson_property_ref_display
  • geojson_property_ref_style
  • geojson_property_ref_processing

Additional Properies in properties

GeoJSON does not specify the fields inside the properties member. In this test, we check whether the software can read and display such additional properties.

Test IDs:

  • geojson_property_extraproperties_load
  • geojson_property_extraproperties_display
  • geojson_property_extraproperties_style
  • geojson_property_extraproperties_processing

Additional Properties in the Feature itself

GeoJSON states that Features may have extra members and gives examples such as adding an ID field. In this test, we check whether the software can read and display such additional properties.

Test IDs:

  • geojson_property_extrapropertiesfeature_load
  • geojson_property_extrapropertiesfeature_display
  • geojson_property_extrapropertiesfeature_style
  • geojson_property_extrapropertiesfeature_processing

Codelist Styling

Does the software support styling based on codelist URL values?

Test IDs:

  • geojson_property_styling_codelisturl

Extensions

There are some defined extensions for GeoJSON. In this section we summarize whether the client software supports these.

CRS

Test what happens when using the optional crs definition together with projected coordinates.

Test IDs:

  • geojson_extension_crs_epsg3035
  • geojson_extension_crs_epsg4258
  • geojson_extension_crs_epsg3857
  • geojson_extension_crs_epsg25832