Initial SyncVito release with installer updater

tests/test_updater.py

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+import base64
+import hashlib
+import os
+from pathlib import Path
+
+import pytest
+
+import syncvito.updater as updater
+from syncvito.updater import GiteaUpdateService, UpdateFormatError, UpdateInfo, parse_version
+
+
+class FakeResponse:
+    def __init__(self, payload: bytes, url: str = "https://gitea.example/asset") -> None:
+        self.payload = payload
+        self.offset = 0
+        self.headers = {"Content-Length": str(len(payload))}
+        self.url = url
+
+    def __enter__(self) -> "FakeResponse":
+        return self
+
+    def __exit__(self, *_args: object) -> bool:
+        return False
+
+    def read(self, size: int = -1) -> bytes:
+        if size < 0:
+            size = len(self.payload) - self.offset
+        chunk = self.payload[self.offset : self.offset + size]
+        self.offset += len(chunk)
+        return chunk
+
+    def geturl(self) -> str:
+        return self.url
+
+
+def _release(version: str, *, prerelease: bool = False) -> dict[str, object]:
+    installer = f"SyncVitoSetup-{version}.exe"
+    return {
+        "tag_name": f"v{version}",
+        "name": f"SyncVito {version}",
+        "body": "Änderungen",
+        "html_url": f"https://gitea.example/releases/v{version}",
+        "draft": False,
+        "prerelease": prerelease,
+        "assets": [
+            {
+                "name": installer,
+                "browser_download_url": f"https://gitea.example/download/{installer}",
+                "size": 1234,
+            },
+            {
+                "name": f"{installer}.sha256",
+                "browser_download_url": f"https://gitea.example/download/{installer}.sha256",
+                "size": 96,
+            },
+        ],
+    }
+
+
+def _info(version: str = "1.1.0") -> UpdateInfo:
+    installer = f"SyncVitoSetup-{version}.exe"
+    return UpdateInfo(
+        version=version,
+        title=f"SyncVito {version}",
+        notes="Änderungen",
+        release_url=f"https://gitea.example/releases/v{version}",
+        installer_name=installer,
+        download_url=f"https://gitea.example/download/{installer}",
+        checksum_url=f"https://gitea.example/download/{installer}.sha256",
+        size=0,
+    )
+
+
+def test_parse_version_accepts_stable_tags() -> None:
+    assert parse_version("v1.2.3") == (1, 2, 3)
+    assert parse_version("10.20.30") == (10, 20, 30)
+
+
+def test_parse_version_rejects_prerelease() -> None:
+    with pytest.raises(ValueError):
+        parse_version("1.2.3-beta")
+
+
+def test_check_reads_latest_installer_release(monkeypatch: pytest.MonkeyPatch, tmp_path: Path) -> None:
+    service = GiteaUpdateService("1.0.0", base_url="https://gitea.example", update_directory=tmp_path)
+    monkeypatch.setattr(service, "_read_json", lambda _url: _release("1.3.0"))
+
+    update = service.check()
+
+    assert update is not None
+    assert update.version == "1.3.0"
+    assert update.installer_name == "SyncVitoSetup-1.3.0.exe"
+
+
+def test_check_returns_none_for_current_version(monkeypatch: pytest.MonkeyPatch, tmp_path: Path) -> None:
+    service = GiteaUpdateService("1.3.0", base_url="https://gitea.example", update_directory=tmp_path)
+    monkeypatch.setattr(service, "_read_json", lambda _url: _release("1.3.0"))
+
+    assert service.check() is None
+
+
+def test_release_requires_matching_installer(monkeypatch: pytest.MonkeyPatch, tmp_path: Path) -> None:
+    service = GiteaUpdateService("1.0.0", base_url="https://gitea.example", update_directory=tmp_path)
+    release = _release("1.1.0")
+    release["assets"] = []
+    monkeypatch.setattr(service, "_read_json", lambda _url: release)
+
+    with pytest.raises(UpdateFormatError, match="SyncVitoSetup-1.1.0.exe"):
+        service.check()
+
+
+def test_download_verifies_checksum(monkeypatch: pytest.MonkeyPatch, tmp_path: Path) -> None:
+    service = GiteaUpdateService("1.0.0", base_url="https://gitea.example", update_directory=tmp_path)
+    payload = b"MZ-syncvito-installer"
+    digest = hashlib.sha256(payload).hexdigest()
+    responses = iter(
+        [
+            FakeResponse(f"{digest} *SyncVitoSetup-1.1.0.exe\n".encode()),
+            FakeResponse(payload),
+        ]
+    )
+    monkeypatch.setattr(service, "_request", lambda *_args, **_kwargs: next(responses))
+    progress: list[tuple[int, str]] = []
+
+    result = service.download(_info(), lambda value, text: progress.append((value, text)))
+
+    assert result.read_bytes() == payload
+    assert progress[-1][0] == 100
+
+
+def test_cleanup_removes_only_managed_installers(tmp_path: Path) -> None:
+    service = GiteaUpdateService("1.0.0", base_url="https://gitea.example", update_directory=tmp_path)
+    managed = [tmp_path / "SyncVitoSetup-1.0.1.exe", tmp_path / "SyncVitoSetup-1.0.2.exe.part"]
+    preserved = [tmp_path / "anderes-setup.exe", tmp_path / "SyncVitoSetup-neu.exe"]
+    for path in managed + preserved:
+        path.write_bytes(b"test")
+
+    assert service.cleanup_installers() == (2, 0)
+    assert all(not path.exists() for path in managed)
+    assert all(path.exists() for path in preserved)
+
+
+def test_update_watcher_waits_before_installer(monkeypatch: pytest.MonkeyPatch, tmp_path: Path) -> None:
+    installer = tmp_path / "SyncVitoSetup-1.1.0.exe"
+    bootstrap_log = tmp_path / "bootstrap.log"
+    captured: dict[str, object] = {}
+
+    def capture(executable: str, arguments: list[str]) -> None:
+        captured["executable"] = executable
+        captured["arguments"] = arguments
+
+    monkeypatch.setattr(updater, "_start_detached", capture)
+    monkeypatch.setattr(updater.os, "name", "nt")
+    powershell = Path(os.environ.get("SYSTEMROOT", r"C:\Windows")) / "System32/WindowsPowerShell/v1.0/powershell.exe"
+    monkeypatch.setattr(Path, "is_file", lambda self: self == powershell)
+
+    updater._start_installer_after_exit(installer, ["/VERYSILENT"], [222, 111], bootstrap_log)
+
+    arguments = captured["arguments"]
+    assert isinstance(arguments, list)
+    encoded = arguments[arguments.index("-EncodedCommand") + 1]
+    script = base64.b64decode(encoded).decode("utf-16-le")
+    assert "foreach ($processId in @(111, 222))" in script
+    assert script.index("while (Get-Process") < script.index(str(installer))
+    assert "'/VERYSILENT'" in script