45 lines
1.6 KiB
Python
45 lines
1.6 KiB
Python
"""Pin computeSnap (static/js/editor/snap.js) against a non-array otherLayers.
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Driven through `node --input-type=module`; skips without node.
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"""
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import json
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import shutil
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import subprocess
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from pathlib import Path
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import pytest
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_REPO = Path(__file__).resolve().parent.parent
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_HELPER = _REPO / "static" / "js" / "editor" / "snap.js"
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_HAS_NODE = shutil.which("node") is not None
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def _snap(other_layers):
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js = f"""
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import {{ computeSnap }} from '{_HELPER.as_posix()}';
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const layer = {{ id: 'L1', canvas: {{ width: 100, height: 50 }} }};
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const ctx = {{ zoom: 1, canvasW: 800, canvasH: 600, otherLayers: {json.dumps(other_layers)} }};
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console.log(JSON.stringify(computeSnap(layer, 10, 10, ctx)));
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"""
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proc = subprocess.run(
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["node", "--input-type=module"],
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input=js, capture_output=True, text=True, cwd=str(_REPO), timeout=30,
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)
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assert proc.returncode == 0, proc.stderr
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return json.loads(proc.stdout.strip())
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@pytest.mark.skipif(not _HAS_NODE, reason="node binary not on PATH")
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def test_compute_snap_tolerates_non_array_other_layers():
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# ctx.otherLayers should be an array, but during init / error recovery it
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# can be missing or wrong-typed; the old `for...of` threw on a non-iterable.
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r = _snap(123)
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assert r["x"] == 10 and r["y"] == 10 and r["guides"] == []
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@pytest.mark.skipif(not _HAS_NODE, reason="node binary not on PATH")
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def test_compute_snap_still_snaps_to_a_layer_edge():
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other = [{"id": "L2", "visible": True, "offset": {"x": 12, "y": 300},
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"canvas": {"width": 100, "height": 50}}]
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r = _snap(other)
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assert r["x"] == 12
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