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test: lock down WeakDataset json round-trip (paired with PyAutoArray fix) #555

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Merged
Jammy2211 merged 1 commit into from
May 28, 2026
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test: lock down WeakDataset json round-trip (paired with PyAutoArray fix) #555

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22 changes: 22 additions & 0 deletions test_autolens/weak/test_dataset.py
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Original file line number Diff line number Diff line change
Expand Up @@ -77,3 +77,25 @@ def test__weak_dataset__extent_from_pads_position_bounding_box():
assert y_max == pytest.approx(1.1)
assert x_min == pytest.approx(-0.5)
assert x_max == pytest.approx(2.1)


def test__weak_dataset__json_round_trip(tmp_path):
shear_yx = _make_shear_yx(
positions=[(0.5, 0.0), (-0.5, 0.0), (0.0, 0.5), (0.0, -0.5)],
values=[(0.01, 0.02), (-0.03, 0.04), (0.05, -0.06), (0.07, 0.08)],
)

dataset = al.WeakDataset(
shear_yx=shear_yx, noise_map=[0.2, 0.3, 0.25, 0.35], name="round_trip"
)

file_path = tmp_path / "dataset.json"
al.output_to_json(obj=dataset, file_path=file_path)
loaded = al.from_json(file_path=file_path)

assert isinstance(loaded, al.WeakDataset)
assert isinstance(loaded.shear_yx, ShearYX2DIrregular)
assert loaded.name == "round_trip"
assert np.allclose(loaded.shear_yx.array, dataset.shear_yx.array)
assert np.allclose(loaded.shear_yx.grid.array, dataset.shear_yx.grid.array)
assert np.allclose(loaded.noise_map.array, dataset.noise_map.array)
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