utils/dep_freshness/tests/test_toolchain_registry.py
Krzysztof kuhy Rudnicki 08a4010a16
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dep_freshness: Python's latest is python.org's newest release, not the interpreter
toolchain:python's "latest" was platform.python_version(), so the verdict
depended on the machine running the gate: setup-python "3.x" gave kuhyx/spellcode
3.15.0 on one runner and 3.14.8 on another, making its transitive:pyodide
allowlist entry dead (exit 2) on one and required (exit 1) on the other.

Now registries/toolchain.python_latest() reads python.org's release API
(is_published, pre_release=false), keeps only exact "Python X.Y.Z" names (the
feed also lists "Python install manager 26.4"), and takes the newest stable.

The never_cached() carve-out is gone: it existed because a cached
*interpreter* version from an older runner image (3.13.15) was served to a
3.14.7 job in screen-locker's CI. A registry answer is safe to cache, so
python now goes through the normal TTL cache, prefetch, and offline fallback
(expired cache -> DEGRADED; no cache -> unavailable), never the local
interpreter.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01A4VrLZn9YjhPuoxTj54WKk
2026-10-20 22:39:25 +02:00

115 lines
3.3 KiB
Python

"""Flutter/Node release feeds, and the git-tag "registry" for shared libs."""
from __future__ import annotations
import subprocess
import pytest
from dep_freshness.registries import _git, gittag
from dep_freshness.registries import toolchain as tc
from dep_freshness.registries.http import Offline
RELEASES = {
"current_release": {"stable": "abc123", "beta": "def456"},
"releases": [
{"hash": "def456", "channel": "beta", "version": "3.48.0-0.1.pre"},
{"hash": "abc123", "channel": "stable", "version": "3.47.2",
"dart_sdk_version": "3.13.2"},
{"hash": "old", "channel": "stable", "version": "3.47.1"},
],
}
@pytest.fixture
def feed(monkeypatch):
def install(payload):
monkeypatch.setattr(tc, "get_json", lambda *_a, **_k: payload)
return install
def test_flutter_reads_the_current_stable_release(feed):
feed(RELEASES)
assert tc.flutter_latest() == ("3.47.2", "3.13.2")
def test_flutter_falls_back_to_the_newest_stable_when_the_hash_is_unknown(feed):
payload = {**RELEASES, "current_release": {"stable": "missing"}}
feed(payload)
assert tc.flutter_latest() == ("3.47.2", None)
def test_flutter_with_no_feed_is_unknown(feed):
feed(None)
assert tc.flutter_latest() == (None, None)
def test_node_targets_lts_not_current(feed):
"""Read literally, "latest stable" means Current; the box runs LTS."""
feed([
{"version": "v25.1.0", "lts": False},
{"version": "v24.20.0", "lts": "Iron"},
{"version": "v24.18.0", "lts": "Iron"},
])
assert tc.node_latest() == "24.20.0"
assert tc.node_latest(channel="current") == "25.1.0"
def test_node_with_no_feed_is_unknown(feed):
feed(None)
assert tc.node_latest() is None
LS_REMOTE = (
"aaa\trefs/tags/crdt_sync_dart-v0.10.0\n"
"bbb\trefs/tags/crdt_sync_dart-v0.11.0\n"
"ccc\trefs/tags/crdt_sync_flutter-v0.2.1\n"
"ddd\trefs/tags/design_system-v0.2.0\n"
)
@pytest.fixture
def ls_remote(monkeypatch):
monkeypatch.setattr(_git, "host_reachable", lambda _url: True)
def install(stdout="", returncode=0, error=None):
def fake_run(*_args, **_kwargs):
if error:
raise error
return subprocess.CompletedProcess([], returncode, stdout, "")
monkeypatch.setattr(subprocess, "run", fake_run)
return install
def test_the_newest_tag_for_the_named_package_wins(ls_remote):
ls_remote(LS_REMOTE)
assert gittag.latest("crdt_sync_dart") == "0.11.0"
def test_another_packages_tags_are_not_confused_for_ours(ls_remote):
ls_remote(LS_REMOTE)
assert gittag.latest("crdt_sync_flutter") == "0.2.1"
def test_a_package_with_no_tags_has_no_latest(ls_remote):
ls_remote(LS_REMOTE)
assert gittag.latest("web_ui") is None
def test_a_failing_ls_remote_degrades_to_offline(ls_remote):
ls_remote(returncode=128)
with pytest.raises(Offline):
gittag.latest("crdt_sync_dart")
def test_a_missing_git_binary_degrades_to_offline(ls_remote):
ls_remote(error=OSError("no git"))
with pytest.raises(Offline):
gittag.latest("crdt_sync_dart")
def test_an_unreachable_remote_degrades_to_offline(monkeypatch):
monkeypatch.setattr(_git, "host_reachable", lambda _url: False)
with pytest.raises(Offline):
gittag.latest("crdt_sync_dart")