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60 lines
1.5 KiB
Markdown
60 lines
1.5 KiB
Markdown
# Fixture Strategy
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## Purpose
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GeoIntel needs small, repeatable fixtures so Codex can build and test without relying on huge external downloads.
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## Fixture principles
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- Fixtures must be tiny.
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- Fixtures must be deterministic.
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- Fixtures must be documented.
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- Fixtures must not pretend to be official data.
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- Real-source providers can be added later without breaking tests.
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## Required V1 fixtures
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### reference_buildings.geojson
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Purpose:
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- reference building polygons for QA/QC tests.
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Content:
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- 3 to 10 simple polygons.
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- one polygon matching a prediction exactly;
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- one partially overlapping;
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- one unmatched reference object.
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### predicted_buildings.geojson
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Purpose:
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- deterministic detection output fixture.
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Content:
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- one true positive exact/near match;
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- one true positive partial match;
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- one false positive;
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- one low-confidence detection.
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### project_area.geojson
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Purpose:
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- test project area.
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Content:
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- polygon enclosing all reference/predicted fixtures.
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### tiny_raster.tif
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Purpose:
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- raster metadata and clipping tests.
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Content:
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- very small georeferenced raster if feasible.
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- if not feasible initially, document missing fixture and provide tests for raster metadata with generated temporary raster.
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## Development providers
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### DevelopmentDetectionProvider
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Returns predictions from `predicted_buildings.geojson` for a selected demo run.
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### LocalFixtureReferenceProvider
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Returns `reference_buildings.geojson` as a cached reference layer.
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## Acceptance
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The fixture strategy is complete when QA/QC tests can run fully offline.
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