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libretro/tests/test_scraper_contract.py
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#!/usr/bin/env python3
"""The BaseScraper contract the wiki asks contributors to implement.
wiki/adding-a-scraper.md and wiki/adding-a-platform.md document
compare_with_config, ChangeSet.has_changes and test_connection as the
interface a new scraper plugs into. No scraper in the repository calls them,
so nothing proved they still worked; a documented contract that is never
exercised is a promise to contributors backed by nothing.
"""
from __future__ import annotations
import importlib
import subprocess
import sys
import tempfile
import unittest
import urllib.error
from pathlib import Path
from unittest import mock
REPO_ROOT = Path(__file__).resolve().parent.parent
sys.path.insert(0, str(REPO_ROOT / "scripts"))
from scraper import emudeck_scraper, libretro_scraper # noqa: E402
from scraper.base_scraper import ( # noqa: E402
BaseScraper,
BiosRequirement,
ChangeSet,
fetch_github_latest_version,
github_headers,
)
class _StubScraper(BaseScraper):
"""Minimal scraper: returns what it was handed, or raises."""
def __init__(self, requirements=None, error: Exception | None = None):
super().__init__(url="https://example.test/bios.xml")
self._requirements = requirements or []
self._error = error
def fetch_requirements(self) -> list[BiosRequirement]:
if self._error is not None:
raise self._error
return self._requirements
def validate_format(self, raw_data: str) -> bool:
return True
def _config(*files: dict) -> dict:
return {"systems": {"test-sys": {"files": list(files)}}}
class ChangeSetSummary(unittest.TestCase):
def test_empty_changeset_has_no_changes(self):
changes = ChangeSet()
self.assertFalse(changes.has_changes)
self.assertEqual(changes.summary(), "no changes")
def test_summary_counts_each_kind(self):
req = BiosRequirement(name="a.bin", system="test-sys")
changes = ChangeSet(added=[req], removed=[req], modified=[(req, req)])
self.assertTrue(changes.has_changes)
self.assertEqual(changes.summary(), "+1 added, -1 removed, ~1 modified")
class CompareWithConfig(unittest.TestCase):
def test_new_upstream_file_is_reported_as_added(self):
scraper = _StubScraper([BiosRequirement(name="new.bin", system="test-sys")])
changes = scraper.compare_with_config(_config())
self.assertEqual([r.name for r in changes.added], ["new.bin"])
self.assertTrue(changes.has_changes)
def test_file_dropped_upstream_is_reported_as_removed(self):
scraper = _StubScraper([])
changes = scraper.compare_with_config(_config({"name": "old.bin"}))
self.assertEqual([r.name for r in changes.removed], ["old.bin"])
def test_changed_sha1_is_reported_as_modified(self):
scraper = _StubScraper(
[BiosRequirement(name="a.bin", system="test-sys", sha1="b" * 40)]
)
changes = scraper.compare_with_config(_config({"name": "a.bin", "sha1": "a" * 40}))
self.assertEqual(len(changes.modified), 1)
before, after = changes.modified[0]
self.assertEqual((before.sha1, after.sha1), ("a" * 40, "b" * 40))
def test_changed_md5_is_reported_when_no_sha1_is_declared(self):
scraper = _StubScraper(
[BiosRequirement(name="a.bin", system="test-sys", md5="b" * 32)]
)
changes = scraper.compare_with_config(_config({"name": "a.bin", "md5": "a" * 32}))
self.assertEqual(len(changes.modified), 1)
def test_identical_hashes_are_not_a_change(self):
scraper = _StubScraper(
[BiosRequirement(name="a.bin", system="test-sys", sha1="a" * 40)]
)
changes = scraper.compare_with_config(_config({"name": "a.bin", "sha1": "a" * 40}))
self.assertFalse(changes.has_changes)
def test_a_file_in_another_system_is_not_the_same_file(self):
scraper = _StubScraper([BiosRequirement(name="a.bin", system="other-sys")])
changes = scraper.compare_with_config(_config({"name": "a.bin"}))
self.assertEqual([r.name for r in changes.added], ["a.bin"])
self.assertEqual([r.name for r in changes.removed], ["a.bin"])
class TestConnection(unittest.TestCase):
def test_reachable_source_reports_true(self):
self.assertTrue(_StubScraper([]).test_connection())
def test_network_failure_reports_false(self):
self.assertFalse(_StubScraper(error=OSError("unreachable")).test_connection())
def test_bad_payload_reports_false(self):
self.assertFalse(_StubScraper(error=ValueError("bad format")).test_connection())
def test_an_unexpected_error_is_not_swallowed(self):
"""Only reachability failures are absorbed; a bug must surface."""
with self.assertRaises(KeyError):
_StubScraper(error=KeyError("bug")).test_connection()
class RateLimitedForge(unittest.TestCase):
"""GitLab answered 429 midway through Recalbox's system.ini files and
the whole scrape stopped."""
@staticmethod
def _limited(retry_after: str | None):
import email.message # noqa: PLC0415
import io # noqa: PLC0415
headers = email.message.Message()
if retry_after is not None:
headers["Retry-After"] = retry_after
return urllib.error.HTTPError("u", 429, "Too Many Requests", headers, io.BytesIO())
def test_a_rate_limit_is_waited_out(self):
import io # noqa: PLC0415
from scraper.base_scraper import fetch_bytes # noqa: PLC0415
waits: list[float] = []
answers = [self._limited("7"), self._limited(None), io.BytesIO(b"ok")]
def urlopen(_request, timeout):
answer = answers.pop(0)
if isinstance(answer, Exception):
raise answer
return answer
with mock.patch("urllib.request.urlopen", urlopen):
self.assertEqual(fetch_bytes("https://x", sleep=waits.append), b"ok")
self.assertEqual(waits, [7.0, 4.0])
def test_a_lasting_limit_or_a_missing_file_fails(self):
from scraper.base_scraper import fetch_bytes # noqa: PLC0415
def limited(_request, timeout):
raise self._limited(None)
with mock.patch("urllib.request.urlopen", limited):
with self.assertRaises(ConnectionError):
fetch_bytes("https://x", attempts=3, sleep=lambda _s: None)
def gone(_request, timeout):
raise urllib.error.HTTPError("u", 404, "Not Found", None, None)
waits: list[float] = []
with mock.patch("urllib.request.urlopen", gone):
with self.assertRaises(ConnectionError):
fetch_bytes("https://x", sleep=waits.append)
self.assertEqual(waits, [])
class RecalboxReadsItsSystemsInBatches(unittest.TestCase):
"""One raw read per system.ini, about 150, kept GitLab throttling the
scrape past its half-hour timeout."""
def test_one_query_per_fifty_systems(self):
import json as _json # noqa: PLC0415
from scraper import recalbox_scraper # noqa: PLC0415
systems = [f"sys{i:03}" for i in range(120)]
queries: list[list[str]] = []
def fetch(url, data=None, headers=None):
if "repository/tree" in url:
page = int(url.rsplit("page=", 1)[1])
names = systems[(page - 1) * 100:page * 100]
return _json.dumps([{"name": n, "type": "tree"} for n in names]).encode()
paths = _json.loads(data)["variables"]["paths"]
queries.append(paths)
nodes = [{"path": p, "rawBlob": "[core.0]\nemulator = libretro\ncore = "
+ p.split("/")[-2] + "\n"} for p in paths]
return _json.dumps({"data": {"project": {"repository": {
"blobs": {"nodes": nodes}}}}}).encode()
scraper = recalbox_scraper.Scraper.__new__(recalbox_scraper.Scraper)
scraper.tag = "10.1.1"
with mock.patch.object(recalbox_scraper, "fetch_bytes", fetch):
cores, _standalone = scraper._fetch_cores()
self.assertEqual([len(q) for q in queries], [50, 50, 20])
self.assertEqual(len(cores), 120)
class EveryNamedScraperExists(unittest.TestCase):
"""The registry named lakka_targets, a scraper no file defines: a refresh
of stale targets would have failed on its import."""
def test_registry_scrapers_are_modules(self):
import yaml # noqa: PLC0415
registry = yaml.safe_load((REPO_ROOT / "platforms" / "_registry.yml").read_text())
scraper_dir = REPO_ROOT / "scripts" / "scraper"
for name, meta in registry["platforms"].items():
with self.subTest(platform=name):
if meta.get("scraper"):
self.assertTrue((scraper_dir / f"{meta['scraper']}_scraper.py").is_file())
if meta.get("target_scraper"):
self.assertTrue((scraper_dir / "targets"
/ f"{meta['target_scraper']}_scraper.py").is_file())
class RetroPiePackageList(unittest.TestCase):
"""RetroPie states its packages, and nothing else states them for it."""
@staticmethod
def _archive(modules: dict[str, str]) -> bytes:
import io
import tarfile
buffer = io.BytesIO()
with tarfile.open(fileobj=buffer, mode="w:gz") as archive:
for path, body in modules.items():
payload = body.encode()
info = tarfile.TarInfo(f"RetroPie-Setup-master/{path}")
info.size = len(payload)
archive.addfile(info, io.BytesIO(payload))
return buffer.getvalue()
def _scraper(self, modules: dict[str, str]):
from scraper.retropie_scraper import Scraper
scraper = Scraper()
scraper.module_ids(self._archive(modules))
return scraper
def test_a_package_is_read_from_the_id_its_script_declares(self):
scraper = self._scraper(
{
"scriptmodules/libretrocores/lr-mgba.sh": 'rp_module_id="lr-mgba"\n',
"scriptmodules/emulators/openmsx.sh": 'rp_module_id="openmsx"\n',
}
)
self.assertEqual(scraper.module_ids(), ["lr-mgba", "openmsx"])
def test_a_script_outside_the_package_directories_is_not_a_package(self):
"""Setup helpers, themes and drivers carry no core."""
scraper = self._scraper(
{
"scriptmodules/libretrocores/lr-mgba.sh": 'rp_module_id="lr-mgba"\n',
"scriptmodules/supplementary/autostart.sh": (
'rp_module_id="autostart"\n'
),
"scriptmodules/admin/setup.sh": 'rp_module_id="setup"\n',
}
)
self.assertEqual(scraper.module_ids(), ["lr-mgba"])
def test_the_core_list_drops_the_libretro_prefix(self):
scraper = self._scraper(
{
"retropie_packages.sh": '__version="4.8.12"\n',
"scriptmodules/libretrocores/lr-mgba.sh": 'rp_module_id="lr-mgba"\n',
"scriptmodules/emulators/openmsx.sh": 'rp_module_id="openmsx"\n',
}
)
config = scraper.generate_platform_yaml()
self.assertEqual(config["cores"], ["mgba", "openmsx"])
self.assertEqual(config["inherits"], "retroarch")
self.assertEqual(config["base_destination"], "BIOS")
def test_the_version_is_the_one_the_setup_script_declares(self):
scraper = self._scraper(
{
"retropie_packages.sh": '#!/bin/bash\n__version="4.8.12"\n',
"scriptmodules/libretrocores/lr-mgba.sh": 'rp_module_id="lr-mgba"\n',
}
)
self.assertEqual(scraper.generate_platform_yaml()["version"], "4.8.12")
def test_a_version_assigned_elsewhere_is_not_the_setup_version(self):
"""Only the top-level retropie_packages.sh speaks for the release."""
scraper = self._scraper(
{
"scriptmodules/emulators/openmsx.sh": (
'rp_module_id="openmsx"\n__version="1.0"\n'
),
}
)
with self.assertRaises(ValueError):
scraper.generate_platform_yaml()
def test_no_requirement_is_invented_from_prose(self):
"""RetroPie names BIOS in prose, without a hash to transcribe."""
scraper = self._scraper(
{
"scriptmodules/libretrocores/lr-mgba.sh": (
'rp_module_id="lr-mgba"\n'
'rp_module_help="Copy the required BIOS file gba_bios.bin'
' to $biosdir"\n'
),
}
)
self.assertEqual(scraper.fetch_requirements(), [])
class RecalboxBuildMode(unittest.TestCase):
"""Recalbox's cores come from each system.ini of recalbox-romfs2: a
`[core.N]` section names `emulator = "libretro"` with the core, or a
standalone emulator. es_bios.xml only names the cores that need a BIOS,
so read alone it left most of Recalbox's cores, mame0258 and mame0278
among them, outside the pack."""
SYSTEM_INI = """\
[system]
name = "mame"
fullname = "MAME"
extra line the parser must survive.
[core.0]
package = BR2_PACKAGE_LIBRETRO_MAME0278
emulator = "libretro"
core = "mame0278"
[core.1]
emulator = "advancemame"
core = "advancemame"
[core.2.rpi4]
emulator = "libretro"
core = "mame2003_plus"
"""
def test_libretro_cores_and_standalone_emulators(self):
from scraper.recalbox_scraper import system_ini_cores
cores, standalone = system_ini_cores(self.SYSTEM_INI)
self.assertEqual(cores, {"mame0278", "advancemame", "mame2003_plus"})
self.assertEqual(standalone, {"advancemame"})
def test_the_registry_leaves_the_list_to_the_scraper(self):
import yaml
root = Path(__file__).resolve().parents[1]
registry = yaml.safe_load((root / "platforms" / "_registry.yml").read_text())
self.assertNotIn("cores", registry["platforms"]["recalbox"])
class RetroBatCoresFromItsES(unittest.TestCase):
"""RetroBat's YAML carried no core list: batocera-systems.json names
BIOS files only, and a registry list copied from Batocera stood in,
with abuse, clk or etlegacy that RetroBat never runs."""
ES_SYSTEMS = """\
<?xml version="1.0"?>
<systemList>
<system><name>snes</name><emulators>
<emulator name="libretro"><cores><core>snes9x</core><core>bsnes</core></cores></emulator>
<emulator name="bsnes" />
</emulators></system>
<system><name>samcoupe</name><emulators>
<emulator name="simcoupe"><cores><core>simcoupe</core></cores></emulator>
</emulators></system>
</systemList>
"""
def test_libretro_cores_and_standalone_emulators(self):
from scraper.retrobat_scraper import es_systems_cores
cores, standalone = es_systems_cores(self.ES_SYSTEMS)
self.assertEqual(cores, {"snes9x", "bsnes", "simcoupe"})
self.assertEqual(standalone, {"bsnes", "simcoupe"})
def test_the_registry_leaves_the_list_to_the_scraper(self):
import yaml
root = Path(__file__).resolve().parents[1]
registry = yaml.safe_load((root / "platforms" / "_registry.yml").read_text())
self.assertNotIn("cores", registry["platforms"]["retrobat"])
platform = yaml.safe_load((root / "platforms" / "retrobat.yml").read_text())
self.assertIn("snes9x", platform["cores"])
class RocknixRunsItsStandaloneEmulators(unittest.TestCase):
"""ROCKNIX declared all_libretro while it packages duckstation, dolphin,
ppsspp and 33 other emulators standalone, and read rocknix-systems on
the next branch under the release's version."""
def test_package_names_reach_the_profiles(self):
from scraper.rocknix_scraper import standalone_emulators
self.assertEqual(
standalone_emulators(["duckstation-sa", "hatarisa", "openbor"]),
["duckstation", "duckstation-sa", "hatari", "hatarisa", "openbor"],
)
def test_the_platform_file_is_read_at_its_release(self):
import yaml
root = Path(__file__).resolve().parents[1]
platform = yaml.safe_load((root / "platforms" / "rocknix.yml").read_text())
self.assertIn(f"/distribution/{platform['version']}/", platform["source"])
self.assertIn("retroarch", platform["cores"])
registry = yaml.safe_load((root / "platforms" / "_registry.yml").read_text())
self.assertNotIn("cores", registry["platforms"]["rocknix"])
class RetroDeckCoresAreItsComponents(unittest.TestCase):
"""The registry added clk and gsplus to RetroDECK, which ships neither
as a component, current or archived."""
def test_the_registry_leaves_the_list_to_the_scraper(self):
import yaml
root = Path(__file__).resolve().parents[1]
registry = yaml.safe_load((root / "platforms" / "_registry.yml").read_text())
self.assertNotIn("cores", registry["platforms"]["retrodeck"])
class BizHawkRunsAresForN64Only(unittest.TestCase):
"""BizHawk embeds ares as Ares64, its N64 core; mapping it to the ares
profile claimed thirty systems and accused FirmwareDatabase.cs of a
wrong MSX.rom it never declared for ares."""
def test_ares_is_not_a_bizhawk_core(self):
import yaml
root = Path(__file__).resolve().parents[1]
platform = yaml.safe_load((root / "platforms" / "bizhawk.yml").read_text())
registry = yaml.safe_load((root / "platforms" / "_registry.yml").read_text())
self.assertNotIn("ares", platform["cores"])
self.assertNotIn("ares", registry["platforms"]["bizhawk"]["cores"])
class EveryTargetCoreReachesAProfile(unittest.TestCase):
"""A target lists cores by their buildbot or package name; a name no
profile's cores: claims makes --target drop that core and its systems
without a word. Only check_freshness compared them, on a fresh scrape."""
# RetroPie's packages that no profile describes yet, counted down, never up.
RETROPIE_UNPROFILED = 53
def test_the_committed_targets_resolve(self):
import glob
import os
import yaml
sys.path.insert(0, str(Path(__file__).resolve().parents[1] / "scripts"))
import check_freshness
from common import load_emulator_profiles
root = Path(__file__).resolve().parents[1]
index = check_freshness.profile_name_index(
load_emulator_profiles(str(root / "emulators"))
)
overrides = yaml.safe_load((root / "platforms/targets/_overrides.yml").read_text()) or {}
for path in sorted(glob.glob(str(root / "platforms/targets/*.yml"))):
platform = os.path.basename(path)[:-4]
if platform.startswith("_"):
continue
unresolved = check_freshness.unresolved_target_cores(
yaml.safe_load(Path(path).read_text()), index,
check_freshness._removed_cores(overrides, platform),
)
with self.subTest(platform=platform):
if platform == "retropie":
self.assertLessEqual(len(unresolved), self.RETROPIE_UNPROFILED)
else:
self.assertEqual(unresolved, {})
class UnreadableReleaseStopsTheScrape(unittest.TestCase):
"""A failed tag lookup fell back to master, or to an empty or invented
version. BizHawk, RomM, Batocera and Recalbox then wrote a YAML read from
master under the previous release's version (Recalbox under "10.0"), and
the exporter patched a revision the data never described."""
@staticmethod
def _refuse(*_args, **_kwargs):
raise urllib.error.HTTPError("https://api.github.com/x", 403, "rate limited", {}, None)
def test_every_pinned_scraper_raises(self):
for name in (
"scraper.bizhawk_scraper",
"scraper.romm_scraper",
"scraper.batocera_scraper",
"scraper.recalbox_scraper",
):
module = importlib.import_module(name)
with self.subTest(scraper=name), mock.patch(
"urllib.request.urlopen", self._refuse
), self.assertRaises(RuntimeError):
module.Scraper()
def test_a_release_lookup_raises(self):
with mock.patch("urllib.request.urlopen", self._refuse), self.assertRaises(
RuntimeError
):
fetch_github_latest_version("libretro/RetroArch")
def test_the_token_is_sent(self):
with mock.patch.dict("os.environ", {"GITHUB_TOKEN": "t0k"}):
self.assertEqual(github_headers()["Authorization"], "Bearer t0k")
def test_emudeck_cores_raise(self):
"""EmuDeck wrote cores: [] when the GitHub listing was refused."""
with mock.patch("urllib.request.urlopen", self._refuse), self.assertRaises(
RuntimeError
):
emudeck_scraper.Scraper()._fetch_installed_emulators()
def test_libretro_core_metadata_raises(self):
"""libretro dropped every system name and manufacturer when the
core-info listing was refused."""
with mock.patch("urllib.request.urlopen", self._refuse), self.assertRaises(
RuntimeError
):
libretro_scraper.Scraper()._fetch_core_metadata()
def test_a_core_info_file_the_forge_refuses_raises(self):
"""Read as empty, the core left the result and --compare-db counted
none of its firmware missing."""
from scraper import coreinfo_scraper # noqa: PLC0415
scraper = coreinfo_scraper.Scraper()
with mock.patch.object(
scraper, "_fetch_info_list", return_value=["mednafen_psx_libretro.info"]
), mock.patch("urllib.request.urlopen", self._refuse), self.assertRaises(
ConnectionError
):
scraper.fetch_requirements()
class EveryGitHubApiCallerSendsTheToken(unittest.TestCase):
"""romset_dat_importer and coreinfo_scraper called api.github.com with no
token: past the anonymous quota, --fetch failed with 403 while
refresh_stale had put a token in their environment."""
def test_each_module_naming_the_api_reads_the_token(self):
scripts = Path(__file__).resolve().parent.parent / "scripts"
silent = sorted(
str(path.relative_to(scripts))
for path in scripts.rglob("*.py")
if "api.github.com" in (source := path.read_text(encoding="utf-8"))
and "GITHUB_TOKEN" not in source
and "github_headers(" not in source
)
self.assertEqual(silent, [])
def test_each_function_building_an_api_request_reads_the_token(self):
"""Per module, one call of github_headers anywhere covered them all:
fetch_github_latest_tag sent no token beside a helper that did."""
import ast # noqa: PLC0415
scripts = Path(__file__).resolve().parent.parent / "scripts"
silent = []
for path in sorted(scripts.rglob("*.py")):
source = path.read_text(encoding="utf-8")
for node in ast.walk(ast.parse(source)):
if not isinstance(node, (ast.FunctionDef, ast.AsyncFunctionDef)):
continue
body = ast.get_source_segment(source, node) or ""
requests = any(
isinstance(call, ast.Call)
and getattr(call.func, "attr", getattr(call.func, "id", ""))
in ("Request", "urlopen")
for call in ast.walk(node)
)
if (
requests
and "api.github.com" in body
and "github_headers(" not in body
and "GITHUB_TOKEN" not in body
):
silent.append(f"{path.relative_to(scripts)}:{node.name}")
self.assertEqual(silent, [])
def test_the_tag_helper_sends_the_token_and_raises(self):
from scraper import base_scraper # noqa: PLC0415
seen = {}
def answer(request, timeout=None):
seen.update(request.headers)
raise urllib.error.HTTPError(request.full_url, 403, "rate limited", {}, None)
with mock.patch.dict("os.environ", {"GITHUB_TOKEN": "t0k"}), mock.patch(
"urllib.request.urlopen", answer
), self.assertRaises(RuntimeError):
base_scraper.fetch_github_latest_tag("o/r")
self.assertEqual(seen.get("Authorization"), "Bearer t0k")
_IMPORT_WITHOUT_NETWORK = """
import importlib, socket, sys
from pathlib import Path
root, package = Path(sys.argv[1]), sys.argv[2]
sys.path[:0] = [str(root), str(root / "scripts")]
attempts = []
def refuse(*_args, **_kwargs):
attempts.append(1)
raise OSError("network refused at import")
socket.socket.connect = refuse
socket.create_connection = refuse
socket.getaddrinfo = refuse
for path in sorted((root / package.replace(".", "/")).rglob("*.py")):
if path.name == "__init__.py":
continue
name = ".".join(path.relative_to(root).with_suffix("").parts)
before = len(attempts)
try:
importlib.import_module(name)
except Exception as exc:
print(f"{name}: {type(exc).__name__}: {exc}")
continue
# A fetch whose error the module swallows ("or 'master'") still tried.
if len(attempts) > before:
print(f"{name}: reached for the network")
"""
class ImportingAScraperFetchesNothing(unittest.TestCase):
"""A tag resolved at module load made a refused API call fall back to
master before any scraper ran; the rule since is no network at import.
Each module is imported in a fresh interpreter with sockets refused, so
nothing already cached hides an import-time fetch."""
@staticmethod
def _offenders(root: Path, package: str) -> str:
return subprocess.run(
[sys.executable, "-I", "-c", _IMPORT_WITHOUT_NETWORK, str(root), package],
capture_output=True,
text=True,
check=True,
timeout=300,
).stdout.strip()
def test_every_scraper_imports_offline(self):
self.assertEqual(self._offenders(REPO_ROOT, "scripts.scraper"), "")
def test_a_swallowed_import_time_fetch_is_caught(self):
with tempfile.TemporaryDirectory(dir=REPO_ROOT / "tmp") as directory:
package = Path(directory) / "planted"
package.mkdir()
(package / "__init__.py").write_text("")
(package / "quiet_scraper.py").write_text(
"import urllib.request\n"
"def _tag():\n"
" try:\n"
" return urllib.request.urlopen('https://api.github.com/x').read()\n"
" except OSError:\n"
" return None\n"
"TAG = _tag() or 'master'\n"
)
self.assertIn(
"planted.quiet_scraper: reached for the network",
self._offenders(Path(directory), "planted"),
)
def test_an_import_time_fetch_is_caught(self):
with tempfile.TemporaryDirectory(dir=REPO_ROOT / "tmp") as directory:
package = Path(directory) / "planted"
package.mkdir()
(package / "__init__.py").write_text("")
(package / "eager_scraper.py").write_text(
"import urllib.request\n"
"urllib.request.urlopen('https://api.github.com/repos/o/r/tags')\n"
)
self.assertIn(
"planted.eager_scraper", self._offenders(Path(directory), "planted")
)
class OneNativeIdOneSystem(unittest.TestCase):
"""RetroDECK filed coco as tandy-coco and Batocera as coco: xroar's 28
CoCo and Dragon ROMs reached no RetroDECK system, and --system left
them out of the pack and the installer alike."""
# A folder each platform fills with something else, not a system name:
# EmuDeck checks the Neo Geo BIOS there, RetroDECK keeps arcade sets.
# Several platforms file the PC Engine CD under the HuCard system, the
# native_system of each entry keeping the platform's own grouping.
FOLDS = {"fbneo", "pcenginecd"}
def test_scrapers_agree_on_every_shared_native_id(self):
from common import _norm_system_id # noqa: PLC0415
seen: dict[str, dict[str, str]] = {}
for path in sorted((REPO_ROOT / "scripts" / "scraper").glob("*_scraper.py")):
if "SYSTEM_SLUG_MAP" not in path.read_text():
continue
module = importlib.import_module(f"scraper.{path.stem}")
for native, slug in getattr(module, "SYSTEM_SLUG_MAP", {}).items():
slug = slug[0] if isinstance(slug, tuple) else slug
if isinstance(slug, str):
seen.setdefault(native.lower(), {})[path.stem] = slug
split = {
native: by for native, by in seen.items()
if native not in self.FOLDS and len({_norm_system_id(s) for s in by.values()}) > 1
}
self.assertEqual(split, {})
def test_retrobat_files_its_systems_as_batocera_does(self):
"""RetroBat kept psx, nds and atari800: no profile system met them,
so no core extra joined them and --system found nothing."""
import yaml # noqa: PLC0415
from scraper import batocera_scraper, retrobat_scraper # noqa: PLC0415
for native, slug in batocera_scraper.SYSTEM_SLUG_MAP.items():
self.assertEqual(retrobat_scraper.SYSTEM_SLUG_MAP[native], slug)
data = yaml.safe_load((REPO_ROOT / "platforms" / "retrobat.yml").read_text())
self.assertTrue({"sony-playstation", "nintendo-ds"} <= set(data["systems"]))
self.assertFalse({"psx", "nds", "atari800"} & set(data["systems"]))
# A platform system no profile names gets no core extra and answers no
# --system. Named here: Batocera's family folds Naomi and Atomiswave into
# one system the profiles keep apart, and MiSTer cores nothing profiles.
UNMATCHED = {
"*": {"sega-dreamcast-arcade"},
"misterfpga": {"gameking", "interact", "marty", "studio-ii", "superacan",
"videobrain"},
}
def test_every_platform_system_meets_a_profile_system(self):
import yaml # noqa: PLC0415
from common import ( # noqa: PLC0415
_norm_system_id,
load_emulator_profiles,
load_platform_config,
)
known = set()
for profile in load_emulator_profiles(str(REPO_ROOT / "emulators")).values():
known |= {_norm_system_id(s) for s in profile.get("systems") or []}
known |= {_norm_system_id(f["system"]) for f in profile.get("files") or []
if isinstance(f, dict) and f.get("system")}
registry = yaml.safe_load((REPO_ROOT / "platforms" / "_registry.yml").read_text())
for name in registry["platforms"]:
with self.subTest(platform=name):
config = load_platform_config(name, str(REPO_ROOT / "platforms"))
allowed = self.UNMATCHED["*"] | self.UNMATCHED.get(name, set())
stray = {s for s in config.get("systems", {})
if _norm_system_id(s) not in known} - allowed
self.assertEqual(stray, set())
def test_xroar_machines_reach_the_platforms_that_run_it(self):
import yaml # noqa: PLC0415
from common import _norm_system_id # noqa: PLC0415
xroar = yaml.safe_load((REPO_ROOT / "emulators" / "xroar.yml").read_text())
machines = {_norm_system_id(s) for s in xroar["systems"]}
for platform, wanted in (("retrodeck", {"coco", "dragon64"}),
("recalbox", {"coco", "dragon64"}),
("misterfpga", {"coco3"})):
with self.subTest(platform=platform):
data = yaml.safe_load((REPO_ROOT / "platforms" / f"{platform}.yml").read_text())
ids = {_norm_system_id(s) for s in data["systems"]}
self.assertEqual(wanted & ids & machines, wanted)
if __name__ == "__main__":
unittest.main()
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