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import os
import subprocess
import sys
import tempfile
import types
import unittest
from pathlib import Path
from unittest.mock import Mock
sys.modules.setdefault(
"decky",
types.SimpleNamespace(DECKY_USER_HOME="/home/deck", logger=Mock()),
)
sys.path.insert(0, str(Path(__file__).resolve().parents[1] / "py_modules"))
from lsfg_vk.wrapper_service import WrapperService
class WrapperServiceTests(unittest.TestCase):
def setUp(self):
self.tempdir = tempfile.TemporaryDirectory()
self.home = Path(self.tempdir.name) / "home" / "deck"
self.home.mkdir(parents=True)
self.service = WrapperService()
self.service.user_home = self.home
self.service.local_bin_dir = self.home / ".local/bin"
self.service.config_dir = self.home / ".config/lsfg-vk"
self.service.sidecar_path = self.service.config_dir / "workarounds.json"
self.service.wrapper_path = self.service.local_bin_dir / "lsfg"
def tearDown(self):
self.tempdir.cleanup()
def _state(self, **changes):
state = self.service.default_state()
state.update(changes)
return state
def _run(self, appid, *args, env=None):
process_env = {"PATH": "/usr/bin:/bin", "SteamAppId": str(appid)}
if env:
process_env.update(env)
return subprocess.run(
[str(self.service.wrapper_path), *args],
env=process_env,
capture_output=True,
text=True,
check=True,
)
def test_writes_owned_dispatcher_and_validates_shell(self):
response = self.service.set("123", self._state(dxvkFrameRate=60, enableZink=True))
self.assertTrue(response["success"])
self.assertEqual(response["wrapper_path"], "~/.lsfg")
self.assertTrue(response["wrapper_owned"])
self.assertEqual(response["state"]["dxvkFrameRate"], 60)
self.assertEqual(subprocess.run(["/bin/sh", "-n", str(self.service.wrapper_path)]).returncode, 0)
self.assertIn(self.service.MARKER, self.service.wrapper_path.read_text(encoding="utf-8"))
self.assertEqual(self.service.get("123")["state"], self._state(dxvkFrameRate=60, enableZink=True))
def test_dispatch_clears_managed_values_preserves_other_environment_and_appends_config(self):
self.service.set(
"123",
self._state(dxvkFrameRate=30, disableSteamdeckMode=True, disableVkbasalt=True, enableZink=True),
)
result = self._run(
123,
"/usr/bin/env",
env={
"DXVK_CONFIG": "dxgi.syncInterval = 0",
"DXVK_FRAME_RATE": "5",
"ENABLE_GAMESCOPE_WSI": "1",
"DISABLE_VKBASALT": "0",
"MESA_LOADER_DRIVER_OVERRIDE": "llvmpipe",
"MANGOHUD": "1",
},
)
values = dict(line.split("=", 1) for line in result.stdout.splitlines() if "=" in line)
self.assertEqual(values["ENABLE_GAMESCOPE_WSI"], "0")
self.assertEqual(values["DXVK_HDR"], "0")
self.assertEqual(values["SteamDeck"], "0")
self.assertEqual(values["DISABLE_VKBASALT"], "1")
self.assertEqual(values["__GLX_VENDOR_LIBRARY_NAME"], "mesa")
self.assertEqual(values["MESA_LOADER_DRIVER_OVERRIDE"], "zink")
self.assertEqual(values["GALLIUM_DRIVER"], "zink")
self.assertEqual(values["DXVK_CONFIG"], "dxgi.syncInterval = 0; dxvk.maxFrameRate = 30")
self.assertEqual(values["MANGOHUD"], "1")
self.assertNotIn("DXVK_FRAME_RATE", values)
self.assertNotIn("ENABLE_VKBASALT", values)
def test_appid_fallback_and_unmatched_passthrough(self):
self.service.set("123", self._state(disableGamescopeWsi=False, disableHdr=False))
self.service.set("456", self._state(disableSteamdeckMode=True))
fallback = subprocess.run(
[str(self.service.wrapper_path), "/usr/bin/env"],
env={"PATH": "/usr/bin:/bin", "SteamAppId": "bad", "SteamGameId": "456"},
capture_output=True,
text=True,
check=True,
)
fallback_values = dict(line.split("=", 1) for line in fallback.stdout.splitlines() if "=" in line)
self.assertEqual(fallback_values["SteamDeck"], "0")
self.assertEqual(fallback_values["SteamGameId"], "456")
passthrough = subprocess.run(
[str(self.service.wrapper_path), "/usr/bin/env"],
env={"PATH": "/usr/bin:/bin", "SteamAppId": "999", "KEEP": "yes", "DXVK_HDR": "1"},
capture_output=True,
text=True,
check=True,
)
passthrough_values = dict(line.split("=", 1) for line in passthrough.stdout.splitlines() if "=" in line)
self.assertEqual(passthrough_values["KEEP"], "yes")
self.assertEqual(passthrough_values["DXVK_HDR"], "1")
def test_flatpak_shortcut_receives_env_arguments_and_original_target(self):
fake_flatpak = self.home / ".local/bin/flatpak"
fake_flatpak.parent.mkdir(parents=True, exist_ok=True)
fake_flatpak.write_text(
"#!/bin/sh\n"
"printf 'ARG:%s\\n' \"$@\"\n",
encoding="utf-8",
)
fake_flatpak.chmod(0o755)
self.service.set(
"123",
self._state(dxvkFrameRate=20, enableZink=True),
str(fake_flatpak),
False,
{"kind": "flatpak", "flatpakAppId": "com.example.Game"},
)
result = self._run(123, "run", "com.example.Game", "--windowed", env={"DXVK_CONFIG": "foo=1"})
args = result.stdout.splitlines()
self.assertEqual(args[0], "ARG:run")
self.assertIn("ARG:--filesystem=" + str(self.service.config_dir) + ":rw", args)
self.assertIn("ARG:--filesystem=" + str(self.home / ".local/share/Steam/steamapps/common/Lossless Scaling") + ":ro", args)
self.assertIn("ARG:--env=LSFGVK_CONFIG=" + str(self.service.config_file_path), args)
self.assertIn("ARG:--env=LSFGVK_FLATPAK=1", args)
self.assertIn("ARG:--env=SteamAppId=123", args)
self.assertIn("ARG:--env=ENABLE_GAMESCOPE_WSI=0", args)
self.assertIn("ARG:--env=DXVK_HDR=0", args)
self.assertIn("ARG:--env=__GLX_VENDOR_LIBRARY_NAME=mesa", args)
self.assertIn("ARG:--env=MESA_LOADER_DRIVER_OVERRIDE=zink", args)
self.assertIn("ARG:--env=GALLIUM_DRIVER=zink", args)
self.assertIn("ARG:--env=DXVK_CONFIG=foo=1; dxvk.maxFrameRate = 20", args)
self.assertIn("ARG:com.example.Game", args)
self.assertIn("ARG:--windowed", args)
def test_flatpak_full_executable_form_is_preserved(self):
fake_flatpak = self.home / ".local/bin/flatpak"
fake_flatpak.parent.mkdir(parents=True, exist_ok=True)
fake_flatpak.write_text(
"#!/bin/sh\n"
"printf 'ARG:%s\\n' \"$@\"\n",
encoding="utf-8",
)
fake_flatpak.chmod(0o755)
response = self.service.set(
"123",
self._state(),
f"{fake_flatpak} run com.example.Game",
False,
{"kind": "flatpak", "flatpakAppId": "com.example.Game"},
)
self.assertTrue(response["success"])
result = self._run(123, "--windowed")
args = result.stdout.splitlines()
self.assertEqual(args[0], "ARG:run")
self.assertIn("ARG:com.example.Game", args)
self.assertIn("ARG:--windowed", args)
def test_flatpak_transport_rejects_non_run_invocation(self):
fake_flatpak = self.home / ".local/bin/flatpak"
fake_flatpak.parent.mkdir(parents=True, exist_ok=True)
fake_flatpak.write_text("#!/bin/sh\nexit 0\n", encoding="utf-8")
fake_flatpak.chmod(0o755)
response = self.service.set(
"123",
self._state(),
str(fake_flatpak),
False,
{"kind": "flatpak", "flatpakAppId": "com.example.Game"},
)
self.assertTrue(response["success"])
result = subprocess.run(
[str(self.service.wrapper_path), "bash", "launch-game.sh"],
env={"PATH": "/usr/bin:/bin", "SteamAppId": "123"},
capture_output=True,
text=True,
)
self.assertEqual(result.returncode, 64)
self.assertIn("direct flatpak run", result.stderr)
def test_flatpak_transport_rejects_external_app_id_change(self):
fake_flatpak = self.home / ".local/bin/flatpak"
fake_flatpak.parent.mkdir(parents=True, exist_ok=True)
fake_flatpak.write_text("#!/bin/sh\nexit 0\n", encoding="utf-8")
fake_flatpak.chmod(0o755)
response = self.service.set(
"123",
self._state(),
str(fake_flatpak),
False,
{"kind": "flatpak", "flatpakAppId": "com.example.Game"},
)
self.assertTrue(response["success"])
result = subprocess.run(
[str(self.service.wrapper_path), "run", "com.other.Game"],
env={"PATH": "/usr/bin:/bin", "SteamAppId": "123"},
capture_output=True,
text=True,
)
self.assertEqual(result.returncode, 64)
self.assertIn("application ID changed externally", result.stderr)
def test_invalid_state_and_foreign_wrapper_fail_closed(self):
invalid = self.service.set("0", self.service.default_state())
self.assertFalse(invalid["success"])
invalid = self.service.set("123", {**self.service.default_state(), "dxvkFrameRate": 61})
self.assertFalse(invalid["success"])
self.service.local_bin_dir.mkdir(parents=True, exist_ok=True)
self.service.wrapper_path.write_text("#!/bin/sh\necho foreign\n", encoding="utf-8")
response = self.service.set("123", self.service.default_state())
self.assertFalse(response["success"])
self.assertIn("unowned", response["error"])
self.assertEqual(self.service.wrapper_path.read_text(encoding="utf-8"), "#!/bin/sh\necho foreign\n")
def test_remove_keeps_a_safe_owned_passthrough_wrapper(self):
self.service.set("123", self.service.default_state())
response = self.service.remove("123")
self.assertTrue(response["success"])
self.assertIsNone(self.service.get("123")["state"])
self.assertTrue(self.service.wrapper_path.exists())
result = subprocess.run(
[str(self.service.wrapper_path), "/usr/bin/printf", "ok"],
env={"PATH": "/usr/bin:/bin", "SteamAppId": "123"},
capture_output=True,
text=True,
check=True,
)
self.assertEqual(result.stdout, "ok")
if __name__ == "__main__":
unittest.main()
|
