Case Catalog¶
GeoCase ships 174 curated geospatial test cases. Every case is addressable by ID from a plain pytest test.
Use GeoCase in your tests¶
Install the complete set of vector, raster, and NetCDF dependencies:
Compare all cases side by side in one filterable, sortable table.
Reading the diagrams¶
Vector case pages render the case's actual geometry, projected to fit a fixed viewport. Raster pages carry a schematic of structure instead: the band stack, pixel grid, and NoData marker, drawn from metadata.
What a diagram does and does not tell you
Vector previews are real coordinates, but scale is not comparable. Each is fitted to the viewport independently, so a continent-sized polygon and a metre-sized one can look identical. A handful of cases are deliberately malformed and cannot be loaded at all; those fall back to a generic shape for their geometry type and say so in the caption.
Raster previews are real pixels, but contrast-stretched. Brightness is relative to each case's own range, so it carries no absolute value; NoData is painted magenta, a colour no valid pixel can take. A raster that declares no pixel shape gets a band-structure schematic instead, which shows that there are pixels and not their values. NetCDF cases have no diagram at all. Load the case to see the actual data.
Browse by risk type¶
Start here if you know the failure mode you want to test against.
The vocabulary is canonical and closed: terms are family/specific, and a selector matches either the full term or the bare family prefix, so risk_types_any=["crs"] selects the whole CRS family. In Python, geocase.risk_types() returns this table as a mapping.
attribute/¶
Select the whole family with geocase.list_cases(risk_types_any=["attribute"]).
| Risk type | Cases | Where |
|---|---|---|
attribute/corruption |
1 | shapefile_encoding_legacy |
attribute/encoding_error |
2 | mixed_encoding_attributes, shapefile_encoding_legacy |
attribute/field_name_truncation |
1 | shapefile_field_truncation |
attribute/loss |
4 | format_limited_kml_case, mixed_encoding_attributes, parquet_mixed_schema_attributes, shapefile_field_truncation |
attribute/mojibake |
2 | mixed_encoding_attributes, shapefile_encoding_legacy |
attribute/schema_mismatch |
3 | format_limited_kml_case, parquet_mixed_schema_attributes, shapefile_field_truncation |
attribute/timezone_normalization |
1 | mixed_timezone_after_batch_gpkg |
attribute/type_coercion |
1 | format_limited_kml_case |
band/¶
Select the whole family with geocase.list_cases(risk_types_any=["band"]).
crs/¶
Select the whole family with geocase.list_cases(risk_types_any=["crs"]).
| Risk type | Cases | Where |
|---|---|---|
crs/axis_order |
7 | cf_time_ordering_netcdf, linestring_gml_baseline, multilinestring_gml_baseline, multipoint_gml_baseline, multipolygon_gml_baseline, point_gml_baseline, and 1 more |
crs/lat_lon_swap |
1 | out_of_bounds_coordinates |
crs/local_distortion |
1 | dateline_chain_cluster |
crs/mishandled |
2 | optical_equator_small, optical_polar_small |
crs/mismatch |
1 | crs_mismatch_overlay_pair |
crs/projected_coordinate_assumption |
1 | web_mercator_baseline |
crs/projection_failure |
1 | out_of_bounds_coordinates |
crs/reprojection_error |
7 | crs_family_pair_geographic, crs_family_pair_projected, crs_mismatch_overlay_pair, dateline_crossing_polygon, geotiff_utm_boundary, rasterize_match_wgs84_polygon, and 1 more |
crs/units |
2 | crs_family_pair_geographic, crs_family_pair_projected |
crs/zone_selection |
9 | dateline_points_pair, equator_polygon, geotiff_utm_boundary, svalbard_special_zone_polygon, utm_zone_1n_small, utm_zone_33_polygon, and 3 more |
data/¶
Select the whole family with geocase.list_cases(risk_types_any=["data"]).
| Risk type | Cases | Where |
|---|---|---|
data/ambiguous_engine_dependent |
1 | ambiguous_engine_dependent_polygon |
data/coordinate_edge_case |
2 | north_pole_point, south_pole_point |
data/linear_artifacts_after_repair |
1 | spike_invalid_polygon |
data/nan_propagation |
1 | geotiff_nodata_small |
data/projection_assumptions |
1 | optical_polar_small |
data/quality |
1 | null_island_point |
data/silent_bad_data |
1 | null_island_point |
dtype/¶
Select the whole family with geocase.list_cases(risk_types_any=["dtype"]).
| Risk type | Cases | Where |
|---|---|---|
dtype/coercion |
4 | geotiff_float64_small, geotiff_int16_small, geotiff_int32_small, geotiff_int8_small |
dtype/drift |
11 | cog_singleband_small, dem_small, mixed_timezone_after_batch_gpkg, multispectral_s2_like_small, ndvi_scaled_int16_small, ndvi_small, and 5 more |
dtype/nullable_coercion |
1 | parquet_mixed_schema_attributes |
dtype/overflow |
1 | geotiff_int8_small |
dtype/range_assumption |
1 | geotiff_int16_small |
dtype/range_truncation |
1 | geotiff_int32_small |
dtype/value_range_violation |
1 | ndvi_small |
extent/¶
Select the whole family with geocase.list_cases(risk_types_any=["extent"]).
failure_mode/¶
Select the whole family with geocase.list_cases(risk_types_any=["failure_mode"]).
footprint/¶
Select the whole family with geocase.list_cases(risk_types_any=["footprint"]).
| Risk type | Cases | Where |
|---|---|---|
footprint/generation_error |
5 | all_valid_rectangular, hole_center_nodata, nonsquare_diagonal_sparse, rotated_two_islands, thin_corridor_shape |
footprint/geocoding_failure |
1 | null_island_point |
format/¶
Select the whole family with geocase.list_cases(risk_types_any=["format"]).
geometry/¶
Select the whole family with geocase.list_cases(risk_types_any=["geometry"]).
measurement/¶
Select the whole family with geocase.list_cases(risk_types_any=["measurement"]).
| Risk type | Cases | Where |
|---|---|---|
measurement/area_distortion |
2 | north_pole_polygon, south_pole_polygon |
measurement/distance_error |
3 | antimeridian_crossing_line, dateline_points_pair, nearby_points_cluster |
measurement/incorrect_area |
2 | polygon_with_hole, self_intersecting_polygon |
measurement/incorrect_statistics |
1 | geotiff_nodata_small |
measurement/invalid |
1 | degenerate_but_parseable_line |
nodata/¶
Select the whole family with geocase.list_cases(risk_types_any=["nodata"]).
| Risk type | Cases | Where |
|---|---|---|
nodata/ambiguous_zero |
1 | landcover_ambiguous_zero_small |
nodata/default_value_sink |
1 | null_island_point |
nodata/ignored |
23 | bottom_up_dem_small, cog_multispectral_small, dem_nan_nodata_small, dem_small, geotiff_float64_small, geotiff_int16_small, and 17 more |
nodata/mask_misread |
1 | water_mask_small |
nodata/nan_mishandled |
2 | dem_nan_nodata_small, dem_small |
precision/¶
Select the whole family with geocase.list_cases(risk_types_any=["precision"]).
scaling/¶
Select the whole family with geocase.list_cases(risk_types_any=["scaling"]).
| Risk type | Cases | Where |
|---|---|---|
scaling/category_misread |
2 | landcover_ambiguous_zero_small, landcover_small |
scaling/colormap_dropped |
1 | landcover_small |
scaling/ignored |
2 | ndvi_packed_netcdf, ndvi_scaled_int16_small |
scaling/incorrect_rendering |
1 | antimeridian_crossing_line |
scaling/pixel_lattice_misclassification |
1 | geotiff_nodata_small_shifted |
transform/¶
Select the whole family with geocase.list_cases(risk_types_any=["transform"]).
| Risk type | Cases | Where |
|---|---|---|
transform/alignment_too_strict |
1 | geotiff_nodata_small_shifted |
transform/bottom_up |
3 | bottom_up_dem_small, bottom_up_only_square, rotated_bottom_up_small |
transform/nonsquare_pixels |
2 | nonsquare_diagonal_sparse, rotated_nonsquare_small |
transform/pixel_anchor |
2 | pixel_is_area_dem_small, pixel_is_point_dem_small |
transform/pixel_shift |
1 | geotiff_utm_boundary |
transform/rasterization_alignment |
2 | rasterize_match_utm33_polygon, rasterize_match_wgs84_polygon |
transform/resampling_assumptions |
1 | multispectral_mixed_resolution_small |
transform/resolution_mismatch |
1 | multispectral_mixed_resolution_small |
transform/rotated |
6 | rotated_bottom_up_small, rotated_nonsquare_small, rotated_only_square, rotated_steep_small, rotated_two_islands, rotated_two_islands_warped |
transform/shifted_origin |
1 | geotiff_nodata_small_shifted |
Browse by format¶
| Format | Cases |
|---|---|
| Arrow | 1 |
| CSV_WKT | 6 |
| Feather | 2 |
| FlatGeobuf | 6 |
| GML | 6 |
| GPKG | 13 |
| GeoArrow | 1 |
| GeoJSON | 51 |
| GeoTIFF | 47 |
| KML | 7 |
| NetCDF | 3 |
| Parquet | 3 |
| SQLite | 6 |
| Shapefile | 9 |
| WKB | 7 |
| WKT | 6 |
All cases by category¶
netcdf (3)¶
| Case | Format | Geometry | Risk types |
|---|---|---|---|
| CF Time Units and Non-Conventional Dimension Order | NetCDF | -- | band/dimension_mismatch, crs/axis_order |
| Lat/Lon Small NetCDF | NetCDF | -- | nodata/ignored |
| Packed int16 NDVI (NetCDF) | NetCDF | -- | nodata/ignored, scaling/ignored |
raster (47)¶
| Case | Format | Geometry | Risk types |
|---|---|---|---|
| All Valid Rectangular Raster | GeoTIFF | -- | footprint/generation_error |
| Bottom-Up DEM (Positive Y Resolution) | GeoTIFF | -- | failure_mode/consumer, nodata/ignored, transform/bottom_up |
| Bottom-Up Square (Positive E and Nothing Else) | GeoTIFF | -- | transform/bottom_up |
| COG Multispectral Small | GeoTIFF | -- | band/loss, format/not_tiled, format/overviews_missing, nodata/ignored |
| COG Single-Band Small | GeoTIFF | -- | dtype/drift, format/not_tiled, format/overviews_missing |
| CRS Family Pair -- Geographic (WGS 84) | GeoTIFF | -- | crs/reprojection_error, crs/units |
| CRS Family Pair -- Projected (UTM 33N) | GeoTIFF | -- | crs/reprojection_error, crs/units |
| DEM NaN NoData Small | GeoTIFF | -- | failure_mode/consumer, nodata/ignored, nodata/nan_mishandled |
| DEM Small | GeoTIFF | -- | dtype/drift, nodata/ignored, nodata/nan_mishandled |
| GeoTIFF External Overviews Small | GeoTIFF | -- | format/overviews_missing, format/sidecar_dropped |
| GeoTIFF Float64 Small | GeoTIFF | -- | dtype/coercion, nodata/ignored, precision/loss |
| GeoTIFF Int16 Small | GeoTIFF | -- | dtype/coercion, dtype/range_assumption, nodata/ignored |
| GeoTIFF Int32 Small | GeoTIFF | -- | dtype/coercion, dtype/range_truncation, nodata/ignored |
| GeoTIFF Int8 Small | GeoTIFF | -- | dtype/coercion, dtype/overflow, failure_mode/consumer, nodata/ignored |
| GeoTIFF Multi-Band Small | GeoTIFF | -- | band/incorrect_order, band/loss, nodata/ignored |
| GeoTIFF NoData Small | GeoTIFF | -- | data/nan_propagation, measurement/incorrect_statistics, nodata/ignored |
| GeoTIFF NoData Small Shifted | GeoTIFF | -- | scaling/pixel_lattice_misclassification, transform/alignment_too_strict, transform/shifted_origin |
| GeoTIFF UTM Boundary | GeoTIFF | -- | crs/reprojection_error, crs/zone_selection, transform/pixel_shift |
| Hole Center NoData Raster | GeoTIFF | -- | footprint/generation_error, nodata/ignored |
| Land Cover With Ambiguous Zero | GeoTIFF | -- | failure_mode/consumer, nodata/ambiguous_zero, nodata/ignored, scaling/category_misread |
| Land Cover Small | GeoTIFF | -- | scaling/category_misread, scaling/colormap_dropped |
| Multispectral Mixed Resolution Small | GeoTIFF | -- | band/loss, transform/resampling_assumptions, transform/resolution_mismatch |
| Multispectral Sentinel-2-like Small | GeoTIFF | -- | band/incorrect_order, band/loss, dtype/drift, nodata/ignored |
| NDVI Scaled Int16 Small | GeoTIFF | -- | dtype/drift, nodata/ignored, scaling/ignored |
| NDVI Small | GeoTIFF | -- | dtype/drift, dtype/value_range_violation |
| Nodata Only (One Sentinel, North-Up, Unrotated) | GeoTIFF | -- | nodata/ignored |
| Nonsquare Diagonal Sparse Raster | GeoTIFF | -- | footprint/generation_error, transform/nonsquare_pixels |
| Optical Dateline Small | GeoTIFF | -- | extent/antimeridian, extent/bounds_normalization, failure_mode/reference_implementation |
| Optical Dateline West Small | GeoTIFF | -- | extent/antimeridian, extent/bounds_normalization, extent/coordinate_wrapping, failure_mode/reference_implementation |
| Optical Equator Small | GeoTIFF | -- | crs/mishandled |
| Optical Polar Small | GeoTIFF | -- | crs/mishandled, data/projection_assumptions |
| Optical RGB Small | GeoTIFF | -- | band/incorrect_order, band/loss, dtype/drift |
| Overlap Group -- Centre | GeoTIFF | -- | band/alias_ambiguity, band/stacking_order_ignored, nodata/ignored |
| Overlap Group -- North | GeoTIFF | -- | band/alias_ambiguity, band/stacking_order_ignored, nodata/ignored |
| Overlap Group -- South | GeoTIFF | -- | band/alias_ambiguity, band/stacking_order_ignored, nodata/ignored |
| Pixel-Is-Area DEM | GeoTIFF | -- | failure_mode/consumer, nodata/ignored, transform/pixel_anchor |
| Pixel-Is-Point DEM | GeoTIFF | -- | failure_mode/consumer, nodata/ignored, transform/pixel_anchor |
| Rotated Bottom-Up DEM (Skew and Positive Y Resolution) | GeoTIFF | -- | transform/bottom_up, transform/rotated |
| Rotated Raster with Non-Square Pixels | GeoTIFF | -- | transform/nonsquare_pixels, transform/rotated |
| Rotated Square (Rotation and Nothing Else) | GeoTIFF | -- | transform/rotated |
| Steeply Rotated DEM (40-Degree Skew) | GeoTIFF | -- | transform/rotated |
| Rotated Two Islands Raster | GeoTIFF | -- | failure_mode/consumer, footprint/generation_error, transform/rotated |
| Rotated Two Islands With Warped Reference | GeoTIFF | -- | transform/rotated |
| SAR Dual-Pol Small | GeoTIFF | -- | band/incorrect_order, band/loss, dtype/drift |
| SAR VV Small | GeoTIFF | -- | band/loss, dtype/drift |
| Thin Corridor Shape Raster | GeoTIFF | -- | footprint/generation_error, geometry/simplification_loss |
| Water Mask Small | GeoTIFF | -- | dtype/drift, failure_mode/consumer, nodata/ignored, nodata/mask_misread |
vector (124)¶
| Case | Format | Geometry | Risk types |
|---|---|---|---|
| Ambiguous Engine-dependent Polygon | GeoJSON | Polygon | data/ambiguous_engine_dependent, geometry/repair_variability, geometry/topology_error |
| Antimeridian Crossing LineString | GeoJSON | LineString | extent/antimeridian, measurement/distance_error, scaling/incorrect_rendering |
| Classic Antimeridian Polygon | GeoJSON | Polygon | extent/bbox_misinterpretation, extent/coordinate_wrapping |
| CRS Mismatch Overlay Pair | GeoJSON | Polygon | crs/mismatch, crs/reprojection_error |
| Dateline Chain Cluster | GeoJSON | Point | crs/local_distortion, extent/coordinate_wrapping, geometry/transitive_cluster_split |
| Dateline crossing polygon | GeoJSON | Polygon | crs/reprojection_error, extent/bbox_misinterpretation, extent/coordinate_wrapping |
| Dateline Points Pair | GeoJSON | Point | crs/zone_selection, extent/coordinate_wrapping, measurement/distance_error |
| Degenerate but Parseable Line | GeoJSON | LineString | geometry/degenerate_but_parseable, geometry/zero_length, measurement/invalid |
| Dense Ring Polygon (4096 vertices) | GeoJSON | Polygon | -- |
| Dense Ring Polygon (4096 vertices, GeoPackage) | GPKG | Polygon | -- |
| Disjoint Polygons | GeoJSON | Polygon | geometry/false_positive_intersection, geometry/overaggressive_dissolve |
| Empty Geometry in GeoPackage | GPKG | Point | format/limitation, geometry/empty, geometry/null_empty_conflation |
| Empty Polygon | GeoJSON | Polygon | geometry/empty |
| Equator Crossing Line | GeoJSON | LineString | extent/coordinate_sign_assumption, extent/equatorial |
| Equator-Crossing Polygon | GeoJSON | Polygon | crs/zone_selection, extent/equatorial |
| Format-Limited KML Case | KML | Polygon | attribute/loss, attribute/schema_mismatch, attribute/type_coercion, format/limitation |
| Format-limited Precision Polygon | GeoJSON | Polygon | format/limitation, precision/loss |
| Fractal Coastline Polygon | GeoJSON | Polygon | -- |
| GeometryCollection Mixed Valid | GeoJSON | GeometryCollection | geometry/mixed_output |
| Invalid Geometry at Feature 9,999 (GeoPackage) | GPKG | Polygon | format/partial_read_blind_spot, geometry/silent_invalid |
| LineString CSV_WKT Baseline | CSV_WKT | LineString | format/text_geometry_parsing |
| LineString FlatGeobuf Baseline | FlatGeobuf | LineString | format/driver_behavior |
| LineString GeoArrow Baseline | GeoArrow | LineString | format/arrow_ipc_behavior |
| LineString GeoPackage Baseline | GPKG | LineString | -- |
| LineString GML Baseline | GML | LineString | crs/axis_order |
| LineString KML Baseline | KML | LineString | -- |
| LineString Shapefile Baseline | Shapefile | LineString | -- |
| LineString SQLite Baseline | SQLite | LineString | -- |
| LineString WKB Baseline | WKB | LineString | -- |
| LineString WKT Baseline | WKT | LineString | -- |
| Mixed Encoding Attributes | GPKG | Point | attribute/encoding_error, attribute/loss, attribute/mojibake |
| UTC Offset Changes at Row 10,000 (GeoPackage) | GPKG | Point | attribute/timezone_normalization, dtype/drift, format/partial_read_blind_spot, format/spec_nonconformance |
| MultiLineString CSV WKT Baseline | CSV_WKT | MultiLineString | -- |
| MultiLineString FlatGeobuf Baseline | FlatGeobuf | MultiLineString | -- |
| MultiLineString GeoPackage Baseline | GPKG | MultiLineString | -- |
| MultiLineString GML Baseline | GML | MultiLineString | crs/axis_order |
| MultiLineString KML Baseline | KML | MultiLineString | -- |
| MultiLineString Parquet Baseline | Parquet | MultiLineString | format/columnar_storage_behavior |
| MultiLineString Shapefile Baseline | Shapefile | MultiLineString | -- |
| MultiLineString SQLite Baseline | SQLite | MultiLineString | -- |
| MultiLineString WKB Baseline | WKB | MultiLineString | -- |
| MultiLineString WKT Baseline | WKT | MultiLineString | -- |
| MultiPoint CSV WKT Baseline | CSV_WKT | MultiPoint | -- |
| MultiPoint Feather Baseline | Feather | MultiPoint | format/columnar_storage_behavior |
| MultiPoint FlatGeobuf Baseline | FlatGeobuf | MultiPoint | -- |
| MultiPoint GeoPackage Baseline | GPKG | MultiPoint | -- |
| MultiPoint GML Baseline | GML | MultiPoint | crs/axis_order |
| MultiPoint KML Baseline | KML | MultiPoint | -- |
| MultiPoint Shapefile Baseline | Shapefile | MultiPoint | -- |
| MultiPoint SQLite Baseline | SQLite | MultiPoint | -- |
| MultiPoint WKB Baseline | WKB | MultiPoint | -- |
| MultiPoint WKT Baseline | WKT | MultiPoint | -- |
| MultiPolygon CSV WKT Baseline | CSV_WKT | MultiPolygon | -- |
| MultiPolygon FlatGeobuf Baseline | FlatGeobuf | MultiPolygon | -- |
| MultiPolygon GeoPackage Baseline | GPKG | MultiPolygon | -- |
| MultiPolygon GML Baseline | GML | MultiPolygon | crs/axis_order |
| MultiPolygon KML Baseline | KML | MultiPolygon | -- |
| MultiPolygon Shapefile Baseline | Shapefile | MultiPolygon | -- |
| MultiPolygon SQLite Baseline | SQLite | MultiPolygon | -- |
| MultiPolygon WKB Baseline | WKB | MultiPolygon | -- |
| MultiPolygon WKT Baseline | WKT | MultiPolygon | -- |
| Nearby Points Cluster | GeoJSON | Point | measurement/distance_error |
| North Pole Point | GeoJSON | Point | data/coordinate_edge_case, extent/polar |
| North Pole Polygon | GeoJSON | Polygon | extent/polar, measurement/area_distortion |
| First NULL After 10,000 Non-NULL Values (GeoPackage) | GPKG | Point | dtype/drift, format/partial_read_blind_spot, geometry/null_empty_conflation |
| Null Island Point | GeoJSON | Point | data/quality, data/silent_bad_data, footprint/geocoding_failure, nodata/default_value_sink |
| Numeric Boundary: 15 Significant Digits | GeoJSON | Point | failure_mode/reference_implementation, precision/formatter_boundary, precision/significant_digits |
| Numeric Boundary: 17 Significant Digits | GeoJSON | Point | failure_mode/reference_implementation, precision/formatter_boundary, precision/roundtrip_degradation, precision/significant_digits |
| Numeric Boundary: 1e-13 | GeoJSON | Point | failure_mode/reference_implementation, precision/denormal_magnitude, precision/formatter_boundary |
| Numeric Boundary: 1e-14 | GeoJSON | Point | failure_mode/reference_implementation, precision/denormal_magnitude, precision/formatter_boundary, precision/loss |
| Numeric Boundary: 1e-15 | GeoJSON | Point | failure_mode/reference_implementation, precision/denormal_magnitude, precision/formatter_boundary, precision/significant_digits |
| Numeric Boundary: Trailing Nines | GeoJSON | Point | failure_mode/reference_implementation, precision/formatter_boundary, precision/loss |
| Numeric Boundary: Trailing Zeros | GeoJSON | Point | failure_mode/reference_implementation, precision/formatter_boundary, precision/loss |
| Out-of-Bounds / Invalid Coordinates | GeoJSON | Point | crs/lat_lon_swap, crs/projection_failure, extent/coordinate_range_error, format/spatial_index_failure, geometry/silent_invalid |
| Parquet Mixed Schema Attributes | Parquet | Point | attribute/loss, attribute/schema_mismatch, dtype/nullable_coercion, format/columnar_storage_behavior |
| Point Arrow Baseline | Arrow | Point | format/arrow_ipc_behavior |
| Point CSV WKT Baseline | CSV_WKT | Point | -- |
| Point Feather Baseline | Feather | Point | format/columnar_storage_behavior |
| Point FlatGeobuf Baseline | FlatGeobuf | Point | format/driver_behavior |
| Point GeoPackage Baseline | GPKG | Point | -- |
| Point GML Baseline | GML | Point | crs/axis_order, format/xml_driver_behavior |
| Point KML Baseline | KML | Point | format/xml_driver_behavior |
| Point Shapefile Baseline | Shapefile | Point | -- |
| Point SQLite Baseline | SQLite | Point | -- |
| Point WKB Baseline | WKB | Point | -- |
| Point WKT Baseline | WKT | Point | -- |
| Polygon CSV WKT Baseline | CSV_WKT | Polygon | -- |
| Polygon FlatGeobuf Baseline | FlatGeobuf | Polygon | format/driver_behavior |
| Polygon GeoPackage Baseline | GPKG | Polygon | -- |
| Polygon GML Baseline | GML | Polygon | crs/axis_order, format/xml_driver_behavior |
| Polygon KML Baseline | KML | Polygon | format/xml_driver_behavior |
| Polygon Parquet Baseline | Parquet | Polygon | format/columnar_storage_behavior |
| Polygon Shapefile Baseline | Shapefile | Polygon | -- |
| Polygon SQLite Baseline | SQLite | Polygon | format/sqlite_driver_behavior |
| Polygon with Hole | GeoJSON | Polygon | geometry/ring_orientation, measurement/incorrect_area |
| Polygon WKB Baseline | WKB | Polygon | format/binary_geometry_parsing |
| Polygon WKT Baseline | WKT | Polygon | format/text_geometry_parsing |
| Polygon Z (GeoPackage) | GPKG | Polygon | band/dimension_mismatch, precision/loss |
| Polygon Z (WKB) | WKB | Polygon | band/dimension_mismatch |
| GeoJSON Precision Loss Roundtrip | GeoJSON | Point | failure_mode/reference_implementation, format/limitation, precision/coordinate_drift, precision/loss, precision/roundtrip_degradation |
| Rasterize Match UTM33 Polygon | GeoJSON | Polygon | transform/rasterization_alignment |
| Rasterize Match WGS84 Polygon | GeoJSON | Polygon | crs/reprojection_error, transform/rasterization_alignment |
| Self-Intersecting Polygon | GeoJSON | Polygon | geometry/silent_invalid, geometry/topology_error, measurement/incorrect_area |
| Shapefile Legacy DBF Encoding | Shapefile | Point | attribute/corruption, attribute/encoding_error, attribute/mojibake, format/limitation |
| Shapefile Field Name Truncation | Shapefile | Point | attribute/field_name_truncation, attribute/loss, attribute/schema_mismatch, format/limitation |
| Shapefile Ring Orientation Reversal | Shapefile | Polygon | format/limitation, geometry/ring_orientation |
| Simple Valid LineString | GeoJSON | LineString | -- |
| Simple Valid MultiLineString | GeoJSON | MultiLineString | -- |
| Simple Valid MultiPoint | GeoJSON | MultiPoint | -- |
| Simple Valid MultiPolygon | GeoJSON | MultiPolygon | -- |
| Simple Valid Point | GeoJSON | Point | -- |
| Simple Valid Polygon | GeoJSON | Polygon | -- |
| South Pole Point | GeoJSON | Point | data/coordinate_edge_case, extent/polar |
| South Pole Polygon | GeoJSON | Polygon | extent/polar, measurement/area_distortion |
| Spike Invalid Polygon | GeoJSON | Polygon | data/linear_artifacts_after_repair, geometry/mixed_output, geometry/repair_variability |
| Svalbard Special Zone Polygon | GeoJSON | Polygon | crs/zone_selection, extent/polar |
| Unclosed Ring Polygon | GeoJSON | Polygon | geometry/parse_exception, geometry/ring_closure, geometry/silent_invalid, geometry/topology_error |
| UTM Zone 1N Polygon | GeoJSON | Polygon | crs/zone_selection |
| UTM Zone 33 Polygon | GeoJSON | Polygon | crs/zone_selection |
| UTM Zone 33N / 32N Adjacent Pair | GeoJSON | Polygon | crs/zone_selection |
| UTM Zone 56S Polygon (Sydney) | GeoJSON | Polygon | crs/zone_selection |
| UTM Zone Boundary Straddle | GeoJSON | Polygon | crs/zone_selection |
| Web Mercator Baseline Point | GeoJSON | Point | crs/projected_coordinate_assumption, crs/reprojection_error |
| Wrapped Longitude Point | GeoJSON | Point | extent/antimeridian |