mirror of
https://github.com/Abdess/retroarch_system.git
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212 lines
8.1 KiB
Python
212 lines
8.1 KiB
Python
#!/usr/bin/env python3
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"""The BaseScraper contract the wiki asks contributors to implement.
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wiki/adding-a-scraper.md and wiki/adding-a-platform.md document
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compare_with_config, ChangeSet.has_changes and test_connection as the
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interface a new scraper plugs into. No scraper in the repository calls them,
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so nothing proved they still worked; a documented contract that is never
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exercised is a promise to contributors backed by nothing.
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"""
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from __future__ import annotations
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import sys
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import unittest
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from pathlib import Path
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REPO_ROOT = Path(__file__).resolve().parent.parent
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sys.path.insert(0, str(REPO_ROOT / "scripts"))
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from scraper.base_scraper import ( # noqa: E402
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BaseScraper,
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BiosRequirement,
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ChangeSet,
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)
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class _StubScraper(BaseScraper):
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"""Minimal scraper: returns what it was handed, or raises."""
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def __init__(self, requirements=None, error: Exception | None = None):
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super().__init__(url="https://example.test/bios.xml")
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self._requirements = requirements or []
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self._error = error
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def fetch_requirements(self) -> list[BiosRequirement]:
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if self._error is not None:
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raise self._error
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return self._requirements
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def validate_format(self, raw_data: str) -> bool:
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return True
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def _config(*files: dict) -> dict:
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return {"systems": {"test-sys": {"files": list(files)}}}
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class ChangeSetSummary(unittest.TestCase):
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def test_empty_changeset_has_no_changes(self):
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changes = ChangeSet()
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self.assertFalse(changes.has_changes)
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self.assertEqual(changes.summary(), "no changes")
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def test_summary_counts_each_kind(self):
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req = BiosRequirement(name="a.bin", system="test-sys")
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changes = ChangeSet(added=[req], removed=[req], modified=[(req, req)])
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self.assertTrue(changes.has_changes)
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self.assertEqual(changes.summary(), "+1 added, -1 removed, ~1 modified")
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class CompareWithConfig(unittest.TestCase):
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def test_new_upstream_file_is_reported_as_added(self):
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scraper = _StubScraper([BiosRequirement(name="new.bin", system="test-sys")])
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changes = scraper.compare_with_config(_config())
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self.assertEqual([r.name for r in changes.added], ["new.bin"])
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self.assertTrue(changes.has_changes)
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def test_file_dropped_upstream_is_reported_as_removed(self):
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scraper = _StubScraper([])
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changes = scraper.compare_with_config(_config({"name": "old.bin"}))
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self.assertEqual([r.name for r in changes.removed], ["old.bin"])
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def test_changed_sha1_is_reported_as_modified(self):
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scraper = _StubScraper(
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[BiosRequirement(name="a.bin", system="test-sys", sha1="b" * 40)]
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)
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changes = scraper.compare_with_config(_config({"name": "a.bin", "sha1": "a" * 40}))
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self.assertEqual(len(changes.modified), 1)
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before, after = changes.modified[0]
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self.assertEqual((before.sha1, after.sha1), ("a" * 40, "b" * 40))
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def test_changed_md5_is_reported_when_no_sha1_is_declared(self):
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scraper = _StubScraper(
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[BiosRequirement(name="a.bin", system="test-sys", md5="b" * 32)]
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)
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changes = scraper.compare_with_config(_config({"name": "a.bin", "md5": "a" * 32}))
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self.assertEqual(len(changes.modified), 1)
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def test_identical_hashes_are_not_a_change(self):
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scraper = _StubScraper(
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[BiosRequirement(name="a.bin", system="test-sys", sha1="a" * 40)]
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)
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changes = scraper.compare_with_config(_config({"name": "a.bin", "sha1": "a" * 40}))
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self.assertFalse(changes.has_changes)
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def test_a_file_in_another_system_is_not_the_same_file(self):
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scraper = _StubScraper([BiosRequirement(name="a.bin", system="other-sys")])
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changes = scraper.compare_with_config(_config({"name": "a.bin"}))
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self.assertEqual([r.name for r in changes.added], ["a.bin"])
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self.assertEqual([r.name for r in changes.removed], ["a.bin"])
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class TestConnection(unittest.TestCase):
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def test_reachable_source_reports_true(self):
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self.assertTrue(_StubScraper([]).test_connection())
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def test_network_failure_reports_false(self):
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self.assertFalse(_StubScraper(error=OSError("unreachable")).test_connection())
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def test_bad_payload_reports_false(self):
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self.assertFalse(_StubScraper(error=ValueError("bad format")).test_connection())
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def test_an_unexpected_error_is_not_swallowed(self):
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"""Only reachability failures are absorbed; a bug must surface."""
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with self.assertRaises(KeyError):
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_StubScraper(error=KeyError("bug")).test_connection()
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class RetroPiePackageList(unittest.TestCase):
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"""RetroPie states its packages, and nothing else states them for it."""
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@staticmethod
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def _archive(modules: dict[str, str]) -> bytes:
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import io
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import tarfile
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buffer = io.BytesIO()
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with tarfile.open(fileobj=buffer, mode="w:gz") as archive:
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for path, body in modules.items():
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payload = body.encode()
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info = tarfile.TarInfo(f"RetroPie-Setup-master/{path}")
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info.size = len(payload)
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archive.addfile(info, io.BytesIO(payload))
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return buffer.getvalue()
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def _scraper(self, modules: dict[str, str]):
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from scraper.retropie_scraper import Scraper
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scraper = Scraper()
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scraper.module_ids(self._archive(modules))
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return scraper
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def test_a_package_is_read_from_the_id_its_script_declares(self):
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scraper = self._scraper(
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{
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"scriptmodules/libretrocores/lr-mgba.sh": 'rp_module_id="lr-mgba"\n',
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"scriptmodules/emulators/openmsx.sh": 'rp_module_id="openmsx"\n',
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}
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)
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self.assertEqual(scraper.module_ids(), ["lr-mgba", "openmsx"])
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def test_a_script_outside_the_package_directories_is_not_a_package(self):
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"""Setup helpers, themes and drivers carry no core."""
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scraper = self._scraper(
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{
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"scriptmodules/libretrocores/lr-mgba.sh": 'rp_module_id="lr-mgba"\n',
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"scriptmodules/supplementary/autostart.sh": (
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'rp_module_id="autostart"\n'
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),
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"scriptmodules/admin/setup.sh": 'rp_module_id="setup"\n',
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}
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)
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self.assertEqual(scraper.module_ids(), ["lr-mgba"])
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def test_the_core_list_drops_the_libretro_prefix(self):
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scraper = self._scraper(
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{
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"scriptmodules/libretrocores/lr-mgba.sh": 'rp_module_id="lr-mgba"\n',
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"scriptmodules/emulators/openmsx.sh": 'rp_module_id="openmsx"\n',
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}
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)
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config = scraper.generate_platform_yaml()
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self.assertEqual(config["cores"], ["mgba", "openmsx"])
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self.assertEqual(config["inherits"], "retroarch")
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self.assertEqual(config["base_destination"], "BIOS")
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def test_no_requirement_is_invented_from_prose(self):
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"""RetroPie names BIOS in prose, without a hash to transcribe."""
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scraper = self._scraper(
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{
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"scriptmodules/libretrocores/lr-mgba.sh": (
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'rp_module_id="lr-mgba"\n'
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'rp_module_help="Copy the required BIOS file gba_bios.bin'
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' to $biosdir"\n'
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),
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}
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)
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self.assertEqual(scraper.fetch_requirements(), [])
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class RecalboxBuildMode(unittest.TestCase):
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"""es_bios.xml names a libretro core as libretro/<name> and a standalone
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emulator by its bare name: the prefix is the build mode, and a platform
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that runs an emulator standalone must say so or the pack lays its files
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out for the libretro build."""
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def test_bare_names_are_the_standalone_emulators(self):
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from scraper.recalbox_scraper import split_cores
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cores, standalone = split_cores(
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["libretro/uae", "amiberry", "", "dolphin", "libretro/dolphin", "libretro-hatari", "hatari"]
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)
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self.assertEqual(
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cores,
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["amiberry", "dolphin", "hatari", "libretro-hatari", "libretro/dolphin", "libretro/uae"],
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)
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self.assertEqual(standalone, ["amiberry", "dolphin", "hatari"])
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if __name__ == "__main__":
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unittest.main()
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