feat(rust/sedona-testing): add ergonomic raster function test harness#945
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feat(rust/sedona-testing): add ergonomic raster function test harness#945james-willis wants to merge 1 commit into
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Adds RasterSpec, a terse declarative raster fixture (the raster analog of WKT for geometry tests), plus tester and assertion plumbing: - RasterSpec::d2/nd with band/band_values/band_nd/nodata/name/outdb modifiers, sequential default pixel fill, and a PixelValue trait for typed pixel data (little-endian) - raster_array() for multi-row inputs with null rasters - ScalarUdfTester::invoke_raster_scalar/invoke_raster_array/ invoke_raster_array_scalar and a raster Literal path through scalar_lit - AggregateUdfTester::aggregate_rasters for future raster aggregates - Raster-aware assert_scalar_equal/assert_array_equal (null rows compared by validity, mismatches reported per-field instead of a struct dump) - list_utf8_row/list_i64_row/band_pixels extractors for common return shapes - Retrofit rs_bandpath and rs_band_accessors tests as demos - Parameterized end-to-end Python tests for RS_ functions over a Zarr fixture, with a gated probe documenting that the Zarr byte loader is not yet reachable from RS_EnsureLoaded in Python
paleolimbot
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Jun 12, 2026
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This is great, thanks for working on it! Feel free to ignore any of this if you're still working through changes
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| /// Override the GDAL geotransform | ||
| /// `[origin_x, scale_x, skew_x, origin_y, skew_y, scale_y]`. | ||
| pub fn transform(mut self, transform: [f64; 6]) -> Self { | ||
| self.transform = transform; | ||
| self | ||
| } |
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No need to do this here, but Wwhen we get to some more spatial interactions, setting this from a BoundingBox might also be nice
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| @pytest.fixture | ||
| def zarr_group(tmp_path): |
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It would be great to find a way to have an ND fixture without the zarr dependency (for the sedonadb package...for sedonadb-zarr this will be great)
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yeah this is just Fable's first go, I havent even look at this code yet. probably will just use numpy for creating rasters
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