Files
Lyra/worker/lyra_worker/adapters/fakes.py
T
Jonathan 2ca0f7a385 feat: MbBrowser seam and FakeMbBrowser test double
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-11 12:12:17 +02:00

84 lines
2.4 KiB
Python

from typing import Callable
from lyra_worker.browser import ArtistHit, ReleaseGroupInfo
from lyra_worker.types import Candidate, DownloadResult, MBTarget, Quality
_QUALITIES = {
"qobuz": Quality(fmt="FLAC", lossless=True, bit_depth=24, sample_rate=96000),
"soulseek": Quality(fmt="FLAC", lossless=True, bit_depth=16, sample_rate=44100),
"youtube": Quality(fmt="OPUS", lossless=False, bitrate_kbps=160),
}
class _BaseFake:
name = "fake"
tier = 99
def __init__(self, matches: bool = True):
self._matches = matches
def health(self) -> bool:
return True
def search(self, target: MBTarget) -> list[Candidate]:
if not self._matches:
return []
tracks = target.track_count or 10
return [
Candidate(
source=self.name,
source_ref=f"{self.name}:{target.artist}:{target.album}",
matched_artist=target.artist,
matched_album=target.album,
quality=_QUALITIES.get(self.name, _QUALITIES["youtube"]),
track_count=tracks,
source_tier=self.tier,
)
]
def download(
self, candidate: Candidate, dest: str, on_progress: Callable[[float], None]
) -> DownloadResult:
for pct in (0.25, 0.5, 0.75, 1.0):
on_progress(pct)
return DownloadResult(ok=True, path=dest, track_count=candidate.track_count)
class FakeQobuz(_BaseFake):
name = "qobuz"
tier = 0
class FakeSoulseek(_BaseFake):
name = "soulseek"
tier = 1
class FakeYouTube(_BaseFake):
name = "youtube"
tier = 2
class FailingAdapter(_BaseFake):
name = "qobuz" # pretends to be a real source that then fails to download
tier = 0
def download(
self, candidate: Candidate, dest: str, on_progress: Callable[[float], None]
) -> DownloadResult:
return DownloadResult(ok=False, error="simulated download failure")
class FakeMbBrowser:
"""In-memory MbBrowser for tests. `releases` maps artist mbid -> [ReleaseGroupInfo]."""
def __init__(self, artists=None, releases=None):
self._artists = list(artists or [])
self._releases = dict(releases or {})
def search_artist(self, name: str) -> list[ArtistHit]:
return list(self._artists)
def browse_release_groups(self, artist_mbid: str) -> list[ReleaseGroupInfo]:
return list(self._releases.get(artist_mbid, []))