feedBack/tests/test_sloppak_cent_offset.py
2026-06-16 18:47:13 +02:00

84 lines
2.7 KiB
Python

"""Loader coverage for the sloppak `centOffset` field — both the arrangement
JSON wire value and the manifest-level override (which mirrors how `tuning` /
`capo` overrides work, per docs/sloppak-spec.md §2.1)."""
from __future__ import annotations
import json
from pathlib import Path
import yaml
import sloppak as sloppak_mod
def _build(root: Path, arr_extras: dict, manifest_arr_extras: dict) -> Path:
"""Build a directory-form sloppak with one Lead arrangement, letting the
caller inject keys into both the arrangement JSON and its manifest entry."""
pak = root / f"{root.name}.sloppak"
pak.mkdir()
arr_dir = pak / "arrangements"
arr_dir.mkdir()
arr = {
"name": "Lead",
"tuning": [0, 0, 0, 0, 0, 0],
"capo": 0,
"notes": [],
"chords": [],
"anchors": [],
"handshapes": [],
"templates": [],
"beats": [],
"sections": [],
}
arr.update(arr_extras)
(arr_dir / "lead.json").write_text(json.dumps(arr))
arr_entry = {"id": "lead", "name": "Lead", "file": "arrangements/lead.json"}
arr_entry.update(manifest_arr_extras)
manifest = {
"title": "Test",
"artist": "Tester",
"album": "",
"year": 2026,
"duration": 10.0,
"arrangements": [arr_entry],
"stems": [{"id": "full", "file": "stems/full.ogg", "default": True}],
}
(pak / "manifest.yaml").write_text(yaml.safe_dump(manifest, sort_keys=False))
return pak
def _load(pak: Path, tmp_path: Path):
cache = tmp_path / "cache"
cache.mkdir()
return sloppak_mod.load_song(pak.name, pak.parent, cache)
def test_cent_offset_from_arrangement_json(tmp_path: Path):
pak = _build(tmp_path, {"centOffset": -1200.0}, {})
loaded = _load(pak, tmp_path)
assert loaded.song.arrangements[0].cent_offset == -1200.0
def test_manifest_cent_offset_overrides_arrangement_json(tmp_path: Path):
# Arrangement JSON says +5.0, manifest says -1200.0 — manifest wins, like
# tuning/capo.
pak = _build(tmp_path, {"centOffset": 5.0}, {"centOffset": -1200.0})
loaded = _load(pak, tmp_path)
assert loaded.song.arrangements[0].cent_offset == -1200.0
def test_cent_offset_defaults_zero_when_absent_everywhere(tmp_path: Path):
pak = _build(tmp_path, {}, {})
loaded = _load(pak, tmp_path)
assert loaded.song.arrangements[0].cent_offset == 0.0
def test_manifest_cent_offset_non_finite_sanitized(tmp_path: Path):
# A corrupt manifest carrying NaN must not poison the song_info JSON.
pak = _build(tmp_path, {}, {"centOffset": float("nan")})
loaded = _load(pak, tmp_path)
assert loaded.song.arrangements[0].cent_offset == 0.0