Files
gps-denied-onboard/tests/test_metric.py
T
Yuzviak dd9835c0cd fix(lint): resolve all ruff errors — trailing whitespace, E501, F401
- ruff --fix: removed trailing whitespace (W293), sorted imports (I001)
- Manual: broke long lines (E501) in eskf, rotation, vo, gpr, metric, pipeline, rotation tests
- Removed unused imports (F401) in models.py, schemas/__init__.py
- pyproject.toml: line-length 100→120, E501 ignore for abstract interfaces

ruff check: 0 errors. pytest: 195 passed / 8 skipped.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-04-02 17:09:47 +03:00

126 lines
4.5 KiB
Python

"""Tests for Metric Refinement (F09)."""
import numpy as np
import pytest
from gps_denied.core.metric import MetricRefinement
from gps_denied.core.models import ModelManager
from gps_denied.schemas import GPSPoint
from gps_denied.schemas.metric import AlignmentResult, ChunkAlignmentResult
from gps_denied.schemas.satellite import TileBounds
@pytest.fixture
def metric():
manager = ModelManager()
return MetricRefinement(manager)
@pytest.fixture
def bounds():
# Covers precisely 1 degree lat and lon around 49, 32
return TileBounds(
nw=GPSPoint(lat=50.0, lon=32.0),
ne=GPSPoint(lat=50.0, lon=33.0),
sw=GPSPoint(lat=49.0, lon=32.0),
se=GPSPoint(lat=49.0, lon=33.0),
center=GPSPoint(lat=49.5, lon=32.5),
gsd=1.0 # dummy
)
def test_extract_gps_from_alignment(metric, bounds):
# Homography is identity -> map center to center
H = np.eye(3, dtype=np.float64)
# The image is 256x256 in our mock
# Center pixel is 128, 128
gps = metric.extract_gps_from_alignment(H, bounds, (128, 128))
# 128 is middle -> should be EXACTLY at 49.5 lat and 32.5 lon
assert np.isclose(gps.lat, 49.5)
assert np.isclose(gps.lon, 32.5)
def test_align_to_satellite(metric, bounds, monkeypatch):
def mock_infer(*args, **kwargs):
H = np.eye(3, dtype=np.float64)
return {
"homography": H, "inlier_count": 80,
"total_correspondences": 100, "confidence": 0.8,
"reprojection_error": 1.0,
}
engine = metric.model_manager.get_inference_engine("LiteSAM")
monkeypatch.setattr(engine, "infer", mock_infer)
uav = np.zeros((256, 256, 3))
sat = np.zeros((256, 256, 3))
res = metric.align_to_satellite(uav, sat, bounds)
assert res is not None
assert isinstance(res, AlignmentResult)
assert res.matched is True
assert res.inlier_count == 80
# SAT-04: confidence = inlier_ratio
assert np.isclose(res.confidence, 80 / 100)
# ---------------------------------------------------------------
# SAT-03: GSD normalization
# ---------------------------------------------------------------
def test_normalize_gsd_downsamples(metric):
"""UAV frame at 0.16 m/px downsampled to satellite 0.6 m/px."""
uav = np.zeros((480, 640, 3), dtype=np.uint8)
out = metric.normalize_gsd(uav, uav_gsd_mpp=0.16, sat_gsd_mpp=0.6)
# Should be roughly 640 * (0.16/0.6) ≈ 170 wide
assert out.shape[1] < 640
assert out.shape[0] < 480
def test_normalize_gsd_no_downscale_needed(metric):
"""UAV GSD already coarser than satellite → image unchanged."""
uav = np.zeros((256, 256, 3), dtype=np.uint8)
out = metric.normalize_gsd(uav, uav_gsd_mpp=0.8, sat_gsd_mpp=0.6)
assert out.shape == uav.shape
def test_normalize_gsd_zero_args(metric):
"""Zero GSD args → image returned unchanged (guard against divide-by-zero)."""
uav = np.zeros((100, 100, 3), dtype=np.uint8)
out = metric.normalize_gsd(uav, uav_gsd_mpp=0.0, sat_gsd_mpp=0.6)
assert out.shape == uav.shape
# ---------------------------------------------------------------
# SAT-04: confidence = inlier ratio via align_to_satellite
# ---------------------------------------------------------------
def test_align_confidence_is_inlier_ratio(metric, bounds, monkeypatch):
"""SAT-04: returned confidence must equal inlier_count / total_correspondences."""
def mock_infer(*args, **kwargs):
H = np.eye(3, dtype=np.float64)
return {"homography": H, "inlier_count": 60, "total_correspondences": 150,
"confidence": 0.4, "reprojection_error": 1.0}
engine = metric.model_manager.get_inference_engine("LiteSAM")
monkeypatch.setattr(engine, "infer", mock_infer)
res = metric.align_to_satellite(np.zeros((256, 256, 3)), np.zeros((256, 256, 3)), bounds)
if res is not None:
assert np.isclose(res.confidence, 60 / 150)
def test_align_chunk_to_satellite(metric, bounds, monkeypatch):
def mock_infer(*args, **kwargs):
H = np.eye(3, dtype=np.float64)
return {"homography": H, "inlier_count": 80, "confidence": 0.8}
engine = metric.model_manager.get_inference_engine("LiteSAM")
monkeypatch.setattr(engine, "infer", mock_infer)
uavs = [np.zeros((256, 256, 3)) for _ in range(5)]
sat = np.zeros((256, 256, 3))
res = metric.align_chunk_to_satellite(uavs, sat, bounds)
assert res is not None
assert isinstance(res, ChunkAlignmentResult)
assert res.matched is True
assert res.chunk_id == "chunk1"