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74 lines
2.6 KiB
Python
74 lines
2.6 KiB
Python
"""Inference must refuse to guess a CRS.
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Detection QA rejects a tile without explicit CRS metadata, but the inference
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side silently assumed EPSG:4326. That produced geometry that renders as a
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plausible polygon in the wrong place, which is worse than a clear failure:
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"fail closed" is the stated rule for the runtime.
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"""
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from __future__ import annotations
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import pytest
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from app.core.errors import AppError
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from app.services.detection_georeferencing import (
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pixel_bbox_to_epsg4326_polygon,
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pixel_points_to_epsg4326_polygon,
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)
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from app.services.detection_service import DetectionService
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TILE_WITHOUT_CRS = {
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"bounds": [4.0, 51.0, 5.0, 52.0],
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"pixel_window": [0, 0, 100, 100],
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}
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def test_manifest_without_crs_is_rejected() -> None:
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with pytest.raises(AppError) as exc_info:
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DetectionService._require_manifest_crs({"tiles": [{"bounds": [0, 0, 1, 1]}]})
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assert exc_info.value.code == "DETECTION_TILE_MANIFEST_INVALID"
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def test_manifest_crs_is_read_from_any_of_the_documented_keys() -> None:
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assert DetectionService._require_manifest_crs({"crs": "EPSG:31370"}) == "EPSG:31370"
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assert DetectionService._require_manifest_crs({"source_crs": "EPSG:31370"}) == "EPSG:31370"
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assert DetectionService._require_manifest_crs({"dataset_crs": "EPSG:3812"}) == "EPSG:3812"
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def test_bbox_georeferencing_requires_an_explicit_crs() -> None:
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with pytest.raises(AppError) as exc_info:
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pixel_bbox_to_epsg4326_polygon(bbox=[0.0, 0.0, 10.0, 10.0], tile=TILE_WITHOUT_CRS)
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assert exc_info.value.code == "DETECTION_TILE_CRS_REQUIRED"
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def test_mask_georeferencing_requires_an_explicit_crs() -> None:
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with pytest.raises(AppError) as exc_info:
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pixel_points_to_epsg4326_polygon(
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points=[[0.0, 0.0], [10.0, 0.0], [10.0, 10.0]], tile=TILE_WITHOUT_CRS
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)
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assert exc_info.value.code == "DETECTION_TILE_CRS_REQUIRED"
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def test_explicit_crs_on_the_tile_is_used() -> None:
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tile = {**TILE_WITHOUT_CRS, "crs": "EPSG:4326"}
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polygon = pixel_bbox_to_epsg4326_polygon(bbox=[0.0, 0.0, 50.0, 50.0], tile=tile)
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assert polygon.bounds == pytest.approx((4.0, 51.5, 4.5, 52.0))
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def test_projected_bounds_are_reprojected_as_a_whole_rectangle() -> None:
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# Lambert 72 around Mol. All four corners must be transformed, otherwise a
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# rotated footprint is understated.
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bounds = DetectionService._bounds_to_epsg4326([200000.0, 200000.0, 201000.0, 201000.0], "EPSG:31370")
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assert bounds is not None
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min_x, min_y, max_x, max_y = bounds
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assert 4.0 < min_x < 6.0
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assert 50.0 < min_y < 52.0
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assert max_x > min_x and max_y > min_y
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