"""Regression tests for the public website data and citation contracts."""
from __future__ import annotations
import hashlib
import json
import sqlite3
import sys
import tempfile
import unittest
from unittest import mock
from pathlib import Path
import yaml
ROOT = Path(__file__).resolve().parent.parent
sys.path.insert(0, str(ROOT / "scripts"))
from generate_site import ( # noqa: E402
_admonition_body,
_browser_title,
_forge_sources,
_source_ref_markdown,
decorate_markdown_pages,
generate_data_exports,
)
class SiteReferenceContracts(unittest.TestCase):
def setUp(self) -> None:
scratch = ROOT / "tmp" / "tests"
scratch.mkdir(parents=True, exist_ok=True)
self.temp = tempfile.TemporaryDirectory(dir=scratch)
self.docs = Path(self.temp.name) / "docs"
self.docs.mkdir()
def tearDown(self) -> None:
self.temp.cleanup()
@staticmethod
def _fixtures() -> tuple[dict, dict, dict, dict]:
payload = b"firmware"
sha1 = hashlib.sha1(payload).hexdigest()
md5 = hashlib.md5(payload).hexdigest()
sha256 = hashlib.sha256(payload).hexdigest()
db = {
"schema_version": 1,
"generated_at": "2026-08-09T00:00:00Z",
"total_files": 1,
"total_size": len(payload),
"files": {
sha1: {
"path": "bios/Test/fw.bin",
"name": "fw.bin",
"size": len(payload),
"sha1": sha1,
"md5": md5,
"sha256": sha256,
"crc32": "0f00ba11",
"adler32": "0f00ba11",
}
},
"indexes": {
"by_md5": {md5: sha1},
"by_name": {"fw.bin": [sha1]},
"by_crc32": {"0f00ba11": sha1},
"by_sha256": {sha256: sha1},
"by_path_suffix": {"fw.bin": [sha1]},
},
}
coverages = {
"test": {
"platform": "Test Platform",
"config": {
"platform": "Test Platform",
"cores": ["testemu"],
"systems": {
"test-system": {
"files": [
{
"name": "fw.bin",
"destination": "fw.bin",
"required": True,
"sha1": sha1,
"md5": "C87A52C277F7952B41C639FC7BF0A43B,"
"d0ed892a5e8d47e0cb5f8aa5f4dd7c5a",
"crc32": "3F9F95A4",
"size": len(payload),
}
]
}
},
},
"total": 1,
"present": 1,
"verified": 1,
"untested": 0,
"missing": 0,
"core_present": 1,
"core_missing": 0,
"core_unsourceable": 0,
"details": [],
}
}
profiles = {
"testemu": {
"emulator": "Test Emulator",
"type": "libretro",
"source": "https://github.com/example/emulator",
"source_commit": "a" * 40,
"cores": ["testemu"],
"systems": ["test-system"],
"files": [
{
"name": "fw.bin",
"system": "test-system",
"required": True,
"md5": ["5c124e7948ada85da603a522782940d0",
"4921d5f2165dee6e2496f4388c4c81b2"],
"source_ref": "src/firmware.cpp:10-12",
}
],
}
}
stats = {
"schema_version": 1,
"generated_at": "2026-08-09T00:00:00Z",
"files": 1,
"size_bytes": len(payload),
"platforms": 1,
"emulators": 1,
"systems": 1,
"catalog_matched": 0,
"source": "https://github.com/Abdess/retrobios",
"downloads": "https://github.com/Abdess/retrobios/releases/tag/v2026.08.06",
"composition": {
"systems": {"files": 1, "size_bytes": len(payload)},
"arcade": {"files": 0, "size_bytes": 0},
"game_data": {"files": 0, "size_bytes": 0},
},
}
return db, coverages, profiles, stats
@mock.patch("sitesources.tree_holds", lambda *_args: True) # a path the record confirms
def test_source_references_are_revision_pinned_links(self):
_, _, profiles, _ = self._fixtures()
rendered = _source_ref_markdown(
profiles["testemu"], "src/firmware.cpp:10-12"
)
self.assertIn("/blob/" + "a" * 40 + "/src/firmware.cpp#L10-L12", rendered)
def test_ambiguous_two_repository_path_is_never_linked(self):
"""A path that could live in either declared repository stays plain.
The libretro port and the original emulator are two different trees.
Linking an unattributable path to whichever came first publishes a
citation that resolves to nothing.
"""
profile = {
"source": "https://github.com/libretro/example-libretro",
"source_commit": "a" * 40,
"upstream": "https://gitlab.com/vendor/example",
"upstream_commit": "b" * 40,
}
rendered = _source_ref_markdown(profile, "jg.c:213-214")
self.assertEqual(rendered, "`jg.c:213-214`")
self.assertNotIn("http", rendered)
# A first segment equal to a repository's name proves nothing: PCSX2
# keeps its sources in pcsx2/, hatariB vendors Hatari in hatari/.
# Stripped, 470 links pointed at nothing or at another file.
prefixed = _source_ref_markdown(profile, "example/jg.c:213-214")
self.assertEqual(prefixed, "`example/jg.c:213-214`")
@mock.patch("sitesources.tree_holds", lambda *_args: True) # a path the record confirms
def test_a_single_repository_links_the_path_as_written(self):
profile = {"source": "https://github.com/PCSX2/pcsx2", "source_commit": "c" * 40}
rendered = _source_ref_markdown(profile, "pcsx2/ImGui/FullscreenUI.cpp:755-759")
self.assertIn("/blob/" + "c" * 40 + "/pcsx2/ImGui/FullscreenUI.cpp#L755-L759", rendered)
def test_preprocessor_tokens_cannot_become_page_headings(self):
rendered = _admonition_body("First paragraph.\n\n#if FEATURE\nEnabled")
self.assertIn("\\#if FEATURE", rendered)
self.assertNotIn("\n #if FEATURE", rendered)
def test_browser_titles_distinguish_emulators_from_system_pages(self):
from unittest import mock # noqa: PLC0415
import generate_site # noqa: PLC0415
pages = {"systems/qemu.md": {}, "emulators/qemu.md": {"hasPart": [{"name": "a"}]}}
with mock.patch.dict(generate_site.PAGE_DATA, pages, clear=True):
self.assertEqual(_browser_title(Path("emulators/qemu.md"), "QEMU"),
"QEMU emulator BIOS files")
self.assertEqual(_browser_title(Path("systems/qemu.md"), "QEMU"), "QEMU BIOS files")
ACCEPTED = (
("md5", "c87a52c277f7952b41c639fc7bf0a43b"),
("md5", "d0ed892a5e8d47e0cb5f8aa5f4dd7c5a"),
("crc32", "3f9f95a4"),
("md5", "4921d5f2165dee6e2496f4388c4c81b2"),
)
def test_exports_have_catalog_hashes_and_queryable_sqlite(self):
db, coverages, profiles, stats = self._fixtures()
exports = generate_data_exports(
self.docs, db, coverages, profiles, stats
)
catalog = json.loads((self.docs / "api/v1/catalog.json").read_text())
self.assertEqual(catalog["count"], len(exports))
# Every reference resolves against the catalog's own URL, as an
# RFC 3986 client resolves it: the url was relative to the site root
# and the schema to api/v1/, so neither base resolved both.
import urllib.parse # noqa: PLC0415
site = "https://example.org/site/"
base = site + "api/v1/catalog.json"
for item in catalog["items"]:
for key in ("url", "schema"):
if key in item:
target = urllib.parse.urljoin(base, item[key]).removeprefix(site)
self.assertTrue((self.docs / target).is_file(), (key, item[key]))
path = self.docs / urllib.parse.urljoin(base, item["url"]).removeprefix(site)
self.assertEqual(hashlib.sha256(path.read_bytes()).hexdigest(), item["sha256"])
with sqlite3.connect(self.docs / "downloads/retrobios.sqlite") as connection:
# One lowercase row per accepted value: a comma-joined Recalbox
# md5, a JSON array of accepted revisions and an uppercase crc32
# each missed an exact lookup.
for algorithm, value in self.ACCEPTED:
with self.subTest(algorithm=algorithm, value=value):
self.assertTrue(connection.execute(
"SELECT count(*) FROM accepted_hashes WHERE algorithm = ? AND value = ?",
(algorithm, value)).fetchone()[0])
self.assertEqual(connection.execute("SELECT count(*) FROM files").fetchone()[0], 1)
self.assertEqual(connection.execute("SELECT count(*) FROM platforms").fetchone()[0], 1)
self.assertEqual(connection.execute("SELECT count(*) FROM emulators").fetchone()[0], 1)
def test_page_metadata_is_specific_and_idempotent(self):
page = self.docs / "gaps.md"
page.write_text("# Gap Analysis - RetroBIOS\n\nCurrent unresolved entries.\n")
decorate_markdown_pages(self.docs)
decorate_markdown_pages(self.docs)
content = page.read_text()
self.assertEqual(content.count("type: application/ld+json"), 1)
self.assertIn("Current RetroBIOS verification gaps", content)
self.assertIn('"@type":"TechArticle"', content)
class PerModeSourcePins(unittest.TestCase):
"""A profile whose builds live in separate repositories.
`source`, `upstream` and `source_commit` may each be keyed by build mode.
Reading the URL from one mode and the revision from another produces a
permalink into a tree that never held that line, and binding the object
form straight into SQLite fails outright.
"""
PROFILE = {
"emulator": "twobuilds",
"source": {
"standalone": "https://github.com/vendor/emu",
"libretro": "https://github.com/porter/emu-libretro",
},
"upstream": "https://github.com/vendor/emu",
"source_commit": {"standalone": "a" * 40, "libretro": "b" * 40},
}
def test_each_repository_keeps_its_own_revision(self):
pairs = {
(repo.slug, pin) for repo, pin in _forge_sources(self.PROFILE)
}
self.assertIn(("vendor/emu", "a" * 40), pairs)
self.assertIn(("porter/emu-libretro", "b" * 40), pairs)
# The libretro fork must never be pinned to the standalone revision.
self.assertNotIn(("porter/emu-libretro", "a" * 40), pairs)
self.assertNotIn(("vendor/emu", "b" * 40), pairs)
def test_a_build_mode_label_is_resolved_first(self):
repo, pin = _forge_sources(self.PROFILE, "libretro")[0]
self.assertEqual((repo.slug, pin), ("porter/emu-libretro", "b" * 40))
def test_the_plain_string_form_is_unchanged(self):
profile = {
"source": "https://github.com/vendor/emu",
"source_commit": "c" * 40,
}
self.assertEqual(
[(repo.slug, pin) for repo, pin in _forge_sources(profile)],
[("vendor/emu", "c" * 40)],
)
def test_sqlite_export_accepts_a_per_mode_commit(self):
from generate_site import _json_text
self.assertEqual(
_json_text(self.PROFILE["source_commit"]),
'{"libretro": "' + "b" * 40 + '", "standalone": "' + "a" * 40 + '"}',
)
self.assertEqual(_json_text("c" * 40), "c" * 40)
class AnEmulatorPageNamesItsRevision(unittest.TestCase):
"""The page linked the repositories unpinned. The commit every citation
refers to sat in the YAML alone, for 178 profiles."""
def test_each_repository_links_its_pinned_commit(self):
import generate_site # noqa: PLC0415
profile = {
"emulator": "Caprice32", "type": "libretro",
"source": "https://github.com/libretro/libretro-cap32",
"upstream": "https://github.com/ColinPitrat/caprice32",
"source_commit": "c" * 40, "upstream_commit": "6" * 40,
"source_branch": "main", "systems": ["amstrad-cpc"], "files": [],
}
page = generate_site.generate_emulator_page("cap32", profile, {"files": {}})
self.assertIn(
"| Revision | [libretro/libretro-cap32@cccccccccccc]"
"(https://github.com/libretro/libretro-cap32/commit/" + "c" * 40 + "), "
"[ColinPitrat/caprice32@666666666666]"
"(https://github.com/ColinPitrat/caprice32/commit/" + "6" * 40 + "), "
"branch `main` |",
page,
)
class APlatformPageSaysWhereEachFileGoes(unittest.TestCase):
"""Three GameCube IPL.bin were listed by name alone: nothing told which
goes to GC/USA, GC/EUR or GC/JAP."""
def test_same_named_files_show_their_destinations(self):
import generate_site # noqa: PLC0415
regions = ("USA", "EUR", "JAP")
declared = [{"name": "IPL.bin", "destination": f"dolphin-emu/Sys/GC/{r}/IPL.bin",
"sha1": str(i) * 40} for i, r in enumerate(regions)]
files = [{"name": "IPL.bin", "status": "ok"} for _ in regions]
lines = generate_site._render_platform_systems(
{"nintendo-gamecube": files}, {("nintendo-gamecube", "IPL.bin"): declared}, {})
for region in regions:
# The folder: the name is before it in the row.
self.assertIn(f"dolphin-emu/Sys/GC/{region}/"
'OK
bios/Entex/Adventure Vision/"
".variants/advision.zip.1c086064", block)
self.assertIn('Batocera', block)
self.assertIn('RetroBat', block)
self.assertIn('{md5}', text)
class AMismatchNamesTheDumpTheCollectionHolds(unittest.TestCase):
"""The gaps table printed the hash an emulator accepts and stopped, while
the collection held that exact dump for every row."""
def test_the_held_copy_is_named(self):
from generate_site import _held_accepted
db = {"files": {"s1": {"path": "bios/Microsoft/MSX/CLK/msx-japanese.rom"}},
"indexes": {"by_sha256": {"ab" * 32: "s1"}, "by_crc32": {"84f68bf9": "s1"}}}
text = ("RetroBat says OK but ares says sha256 mismatch: got " + "cd" * 32
+ ", accepted [" + "ab" * 32 + "]")
self.assertEqual(_held_accepted(text, db), "bios/Microsoft/MSX/CLK/msx-japanese.rom")
self.assertEqual(_held_accepted("xroar says crc32 mismatch: got 1, accepted [84f68bf9]", db),
"bios/Microsoft/MSX/CLK/msx-japanese.rom")
self.assertEqual(_held_accepted("size mismatch: got 1, accepted [256]", db), "")
class ADataDirectoryFileCanBeLookedUp(unittest.TestCase):
"""2,534 hashes the packs ship from data directories were on no page:
the emulator page gave only a URL whose content moves."""
def test_a_member_resolves_to_its_emulator_page(self):
import json as _json
from generate_site import data_directory_members, file_location_items
with tempfile.TemporaryDirectory(dir=ROOT / "tmp") as tmp:
Path(tmp, "retroarch.json").write_text(_json.dumps({"data_directories": [
{"ref": "dolphin-sys", "files": {"GC/font.bin": {"sha1": "c" * 40, "size": 3}}},
]}))
members = data_directory_members(Path(tmp))
items = file_location_items(
{"files": {}}, {"dolphin": {"data_directories": [{"ref": "dolphin-sys"}]}}, members)
self.assertEqual(items, [{"sha1": "c" * 40,
"url": "/retrobios/emulators/dolphin/#sha1-cccccccccccc"}])
class ACardSaysWhyAFileIsLeftOut(unittest.TestCase):
"""The badge said "bundled" and nothing about which build, so a reader
could not tell why a RetroArch pack carried PPSSPP's assets."""
def test_the_build_and_the_platforms_are_named(self):
from generate_site import _file_badges
badges = " ".join(_file_badges({"name": "a", "bundled": True, "mode": "standalone"}, True))
self.assertIn("installed with the standalone emulator", badges)
class AnEmulatorPageOffersItsInstall(unittest.TestCase):
"""An emulator page linked each file one by one and offered no way to
install them together."""
def test_the_command_names_the_emulator(self):
from generate_site import _install_block
profile = yaml.safe_load((ROOT / "emulators" / "pcem.yml").read_text(encoding="utf-8"))
text = "\n".join(_install_block("pcem", profile))
self.assertIn("install.sh | sh -s -- --emulator pcem", text)
self.assertIn("install.ps1))) --emulator pcem", text)
self.assertEqual(_install_block("x", {"type": "alias"}), [])
def test_the_installer_takes_the_option(self):
source = (ROOT / "install.py").read_text(encoding="utf-8")
self.assertIn('"--emulator"', source)
class NestedProfileBlocksRenderAsLists(unittest.TestCase):
"""The clownmdemu page showed "- **external_required:** False" in a code
block: a key written as a paragraph left its children indented eight
spaces inside the admonition, which Markdown reads as code."""
def _html(self, value: object) -> str:
try:
import markdown
except ImportError:
self.skipTest("markdown is not installed")
from siterender import _render_yaml_value
# The page opens the block with ???+ (pymdownx.details). An admonition
# nests its body by the same four spaces, and needs nothing CI lacks.
lines = ['!!! abstract "Analysis"', ""]
_render_yaml_value(lines, value, 4)
return markdown.markdown("\n".join(lines), extensions=["admonition"])
def test_a_nested_mapping_is_a_nested_list(self):
html = self._html({"megacd_bios": {"external_required": False, "source_ref": "a.c:1"},
"tmss": {"supported": True}})
self.assertNotIn("", html)
self.assertNotIn("**", html)
self.assertIn("external required: no", html)
self.assertIn("a.c:1", html)
def test_platform_details_are_a_list(self):
import generate_site
lines = generate_site._render_platform_details(
{"platform_details": {"megacd": {"root": "x"}, "note": "y"}}
)
try:
import markdown
except ImportError:
self.skipTest("markdown is not installed")
# The block's body, read as the engine reads Markdown inside HTML.
body = lines[lines.index("Platform details ") + 1:
lines.index("")]
html = markdown.markdown("\n".join(body))
self.assertIn("", html)
self.assertIn("name: a.bin, size: 2", html)
class TheOneLinerIsWhereUsersLand(unittest.TestCase):
"""The download page had no Android line and no Windows form with
options, and the platform and system pages offered only ZIP parts."""
def test_download_page(self):
import generate_site # noqa: PLC0415
page = generate_site.generate_which_pack()
self.assertIn("Android (Termux", page)
self.assertIn("install.ps1))) --check", page)
self.assertIn("--platform retroarch --dest", page)
def test_platform_and_system_pages(self):
import generate_site # noqa: PLC0415
from cross_reference import FileConsumers # noqa: PLC0415
cov = {"platform": "Batocera", "mode": "md5", "present": 0, "total": 0,
"verified": 0, "missing": 0, "details": [], "config": {"systems": {}}}
page = generate_site.generate_platform_page("batocera", cov)
self.assertIn("install.sh | sh -s -- --platform batocera", page)
# Batocera runs the command on the device itself, so its page opens on
# the computer route. A platform detected on Windows gets the
# PowerShell form, and its command comes before the ZIP.
cov = dict(cov, platform="RetroArch", mode="existence")
page = generate_site.generate_platform_page("retroarch", cov)
self.assertIn("install.ps1))) --platform retroarch", page)
self.assertIn("install.sh | sh -s -- --platform retroarch", page)
self.assertLess(page.index("--platform retroarch"), page.index("rb-button"))
entry = {"name": "a.bin", "sha1": "a" * 40, "md5": "b" * 32, "size": 3,
"path": "bios/Recalbox/MSX/a.bin"}
page = generate_site.generate_system_page(
"Microsoft", {"MSX": [entry]}, FileConsumers({"files": {}}),
{"MSX": [("recalbox", "msx1,msx2,msxturbor"), ("batocera", "msx1")]})
# The whole system id, up to the end of the command.
self.assertRegex(page, r"--platform recalbox --system msx1,msx2,msxturbor(\n|)")
self.assertIn("--platform batocera --system msx1", page)
def test_a_system_is_offered_only_where_the_manifest_records_it(self):
import generate_site # noqa: PLC0415
import siterender # noqa: PLC0415
saved = dict(siterender._system_page_map)
self.addCleanup(siterender.set_system_page_map, saved)
siterender.set_system_page_map({"sony-playstation": ("sony", "PlayStation"),
"nowhere": ("sony", "PlayStation")})
cov = {"retroarch": {"config": {"systems": {"sony-playstation": {}, "nowhere": {}}}}}
choices = generate_site.system_install_choices(cov)
self.assertEqual(choices["sony"]["PlayStation"], [("retroarch", "sony-playstation")])
class TheGapPageOpensOnCounts(unittest.TestCase):
"""The page opened on a slogan and on tiles reading "Verified (100%)"
for 5,437 of 5,438 files and "Missing 0", above a table of red cells."""
def test_every_count_is_said(self):
import generate_site # noqa: PLC0415
text = generate_site._platform_lists_sentence(5438, 5437, 1, 0)
self.assertIn("Of the 5,438 files", text)
self.assertIn("5,437 are held", text)
self.assertIn("1 is held but not verified", text)
self.assertIn("0 are missing", text)
self.assertNotIn("%", text)
source = (Path(__file__).resolve().parents[1] / "scripts" / "generate_site.py").read_text()
self.assertNotIn("Unified view of BIOS verification", source)
class WhichPackDescribesNoPlatformByOpinion(unittest.TestCase):
"""The page called RetroPie the largest community with the most guides,
Batocera an easy setup and Recalbox good for a first build: claims
nothing in the repository measures, ranking platforms against each
other."""
def test_no_ranking_words(self):
import re
import generate_site # noqa: PLC0415
page = generate_site.generate_which_pack()
rows = [line for line in page.splitlines() if line.startswith("| ")]
found = [
row for row in rows
if re.search(r"\b(largest|most|popular|easy|best|classic|lightweight|"
r"one-click|plug-and-play|first build|accuracy-focused)\b",
row, re.IGNORECASE)
]
self.assertEqual(found, [])
class EveryPageLinksItsOwnData(unittest.TestCase):
"""An emulator page linked its YAML and JSON. A platform page linked
nothing, and a tool had to download platforms.json (2.8 MB) and filter
it. A system page linked nothing either."""
def test_platform_and_system_documents(self):
import generate_site # noqa: PLC0415
from cross_reference import FileConsumers # noqa: PLC0415
cov = {"platform": "Batocera", "mode": "md5", "present": 0, "total": 0,
"verified": 0, "missing": 0, "details": [], "config": {"systems": {}}}
page = generate_site.generate_platform_page("batocera", cov)
self.assertIn("[JSON](../api/v1/platforms/batocera.json)", page)
self.assertIn("/blob/main/platforms/batocera.yml)", page)
entry = {"name": "a.bin", "sha1": "a" * 40, "md5": "b" * 32, "size": 3,
"path": "bios/Sony/PlayStation/a.bin"}
page = generate_site.generate_system_page(
"Sony", {"PlayStation": [entry]}, FileConsumers({"files": {}}))
self.assertIn(" as JSON](../api/v1/systems/sony.json)", page)
item = generate_site.system_export_item("sony", "Sony", {"PlayStation": [entry]})
self.assertEqual(item["consoles"]["PlayStation"][0]["sha1"], "a" * 40)
with tempfile.TemporaryDirectory(dir=Path(__file__).resolve().parents[1] / "tmp") as tmp:
path = Path(tmp) / "sony.json"
generate_site.write_single_item(path, "systems", item, "2026-10-21T00:00:00Z")
document = json.loads(path.read_text())
self.assertEqual(document["count"], 1)
try:
import jsonschema # noqa: PLC0415
except ImportError:
return
root = Path(__file__).resolve().parents[1]
envelope = json.loads((root / "schemas" / "site-api-envelope.schema.json").read_text())
jsonschema.validate(document, envelope)
if __name__ == "__main__":
unittest.main()