chore: Add test geometry fixtures ported from the geo-test-fixtures crate in georust/geo (#193)

This is part of the forked dependency elimination plan: #165.

We'll maintain our generic geo algorithms refactored from georust/geo, the test fixtures for checking the correctness of our refactored implementation is also needed. Unfortunately, geo-test-fixtures is not published to crates.io, so we have to copy it to our own projects to use them.

The WKT files were already committed to the apache/sedona-testing repository (see apache/sedona-testing#9), which is a submodule of sedona-db. We add fixtures for loading the WKT files in the submodule to sedona-testing. These newly added fixtures will be used by future PRs.

Author: Kontinuation

rust/sedona-testing/src/fixtures.rs

@@ -14,6 +14,11 @@
 // KIND, either express or implied.  See the License for the
 // specific language governing permissions and limitations
 // under the License.
+use std::{fs::File, path::PathBuf, str::FromStr};
+
+use geo_types::{LineString, MultiPolygon, Point, Polygon};
+use wkt::{TryFromWkt, WktFloat};
+
 /// A well-known binary blob of MULTIPOINT (EMPTY)
 ///
 /// The wkt crate's parser rejects this; however, it's a corner case that may show
@@ -22,3 +27,208 @@ pub const MULTIPOINT_WITH_EMPTY_CHILD_WKB: [u8; 30] = [
     0x01, 0x04, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00,
     0x00, 0x00, 0x00, 0x00, 0xf8, 0x7f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x7f,
 ];
+
+pub fn louisiana<T>() -> LineString<T>
+where
+    T: WktFloat + Default + FromStr,
+{
+    line_string("louisiana.wkt")
+}
+
+pub fn baton_rouge<T>() -> Point<T>
+where
+    T: WktFloat + Default + FromStr,
+{
+    let x = T::from(-91.147385).unwrap();
+    let y = T::from(30.471165).unwrap();
+    Point::new(x, y)
+}
+
+pub fn east_baton_rouge<T>() -> Polygon<T>
+where
+    T: WktFloat + Default + FromStr,
+{
+    polygon("east_baton_rouge.wkt")
+}
+
+pub fn norway_main<T>() -> LineString<T>
+where
+    T: WktFloat + Default + FromStr,
+{
+    line_string("norway_main.wkt")
+}
+
+pub fn norway_concave_hull<T>() -> LineString<T>
+where
+    T: WktFloat + Default + FromStr,
+{
+    line_string("norway_concave_hull.wkt")
+}
+
+pub fn norway_convex_hull<T>() -> LineString<T>
+where
+    T: WktFloat + Default + FromStr,
+{
+    line_string("norway_convex_hull.wkt")
+}
+
+pub fn norway_nonconvex_hull<T>() -> LineString<T>
+where
+    T: WktFloat + Default + FromStr,
+{
+    line_string("norway_nonconvex_hull.wkt")
+}
+
+pub fn vw_orig<T>() -> LineString<T>
+where
+    T: WktFloat + Default + FromStr,
+{
+    line_string("vw_orig.wkt")
+}
+
+pub fn vw_simplified<T>() -> LineString<T>
+where
+    T: WktFloat + Default + FromStr,
+{
+    line_string("vw_simplified.wkt")
+}
+
+pub fn poly1<T>() -> LineString<T>
+where
+    T: WktFloat + Default + FromStr,
+{
+    line_string("poly1.wkt")
+}
+
+pub fn poly1_hull<T>() -> LineString<T>
+where
+    T: WktFloat + Default + FromStr,
+{
+    line_string("poly1_hull.wkt")
+}
+
+pub fn poly2<T>() -> LineString<T>
+where
+    T: WktFloat + Default + FromStr,
+{
+    line_string("poly2.wkt")
+}
+
+pub fn poly2_hull<T>() -> LineString<T>
+where
+    T: WktFloat + Default + FromStr,
+{
+    line_string("poly2_hull.wkt")
+}
+
+pub fn poly_in_ring<T>() -> LineString<T>
+where
+    T: WktFloat + Default + FromStr,
+{
+    line_string("poly_in_ring.wkt")
+}
+
+pub fn ring<T>() -> LineString<T>
+where
+    T: WktFloat + Default + FromStr,
+{
+    line_string("ring.wkt")
+}
+
+pub fn shell<T>() -> LineString<T>
+where
+    T: WktFloat + Default + FromStr,
+{
+    line_string("shell.wkt")
+}
+
+// From https://geodata.nationaalgeoregister.nl/kadastralekaart/wfs/v4_0?request=GetFeature&service=WFS&srsName=EPSG:4326&typeName=kadastralekaartv4:perceel&version=2.0.0&outputFormat=json&bbox=165593,480993,166125,481552
+pub fn nl_zones<T>() -> MultiPolygon<T>
+where
+    T: WktFloat + Default + FromStr,
+{
+    multi_polygon("nl_zones.wkt")
+}
+
+// From https://afnemers.ruimtelijkeplannen.nl/afnemers/services?request=GetFeature&service=WFS&srsName=EPSG:4326&typeName=Enkelbestemming&version=2.0.0&bbox=165618,480983,166149,481542";
+pub fn nl_plots_wgs84<T>() -> MultiPolygon<T>
+where
+    T: WktFloat + Default + FromStr,
+{
+    multi_polygon("nl_plots.wkt")
+}
+
+pub fn nl_plots_epsg_28992<T>() -> MultiPolygon<T>
+where
+    T: WktFloat + Default + FromStr,
+{
+    // https://epsg.io/28992
+    multi_polygon("nl_plots_epsg_28992.wkt")
+}
+
+fn line_string<T>(name: &str) -> LineString<T>
+where
+    T: WktFloat + Default + FromStr,
+{
+    LineString::try_from_wkt_reader(file(name)).unwrap()
+}
+
+pub fn polygon<T>(name: &str) -> Polygon<T>
+where
+    T: WktFloat + Default + FromStr,
+{
+    Polygon::try_from_wkt_reader(file(name)).unwrap()
+}
+
+pub fn multi_polygon<T>(name: &str) -> MultiPolygon<T>
+where
+    T: WktFloat + Default + FromStr,
+{
+    MultiPolygon::try_from_wkt_reader(file(name)).unwrap()
+}
+
+pub fn file(name: &str) -> File {
+    let base = crate::data::sedona_testing_dir()
+        .expect("sedona-testing directory should resolve when accessing fixtures");
+
+    let mut path = PathBuf::from(base);
+    path.push("data");
+    path.push("wkts");
+    path.push("geo-test-fixtures");
+    path.push(name);
+
+    File::open(&path).unwrap_or_else(|_| panic!("Can't open file: {path:?}"))
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn norway_main_linestring_has_vertices() {
+        let ls = norway_main::<f64>();
+        assert!(
+            !ls.0.is_empty(),
+            "LineString loaded from norway_main.wkt should have vertices"
+        );
+
+        let first = ls.0.first().expect("expected at least one coordinate");
+        assert!(first.x.is_finite(), "first coordinate x should be finite");
+        assert!(first.y.is_finite(), "first coordinate y should be finite");
+    }
+
+    #[test]
+    fn nl_zones_multipolygon_not_empty() {
+        let mp = nl_zones::<f64>();
+        assert!(
+            !mp.0.is_empty(),
+            "MultiPolygon from nl_zones.wkt should contain polygons"
+        );
+
+        let polygon = mp.0.first().expect("expected at least one polygon");
+        assert!(
+            !polygon.exterior().0.is_empty(),
+            "polygon exterior ring should contain coordinates"
+        );
+    }
+}